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Find Addition to existing structure builders in Washington DC

Avatar for Go Contractors, LLC

Go Contractors, LLC

4.12(
551
)
Approved Pro

Go Contractors, LLC

4.12(
551
)
Approved Pro
Customers say: Terrific value
41 years of experience
Free onsite estimate

Go Contractors LLC are specialists in a wide range of areas within residential construction and remodeling. There is no need to call any other contractor for your project as we have extensive experience working with residential projects in its entirety. Our goal is to make our clients satisfied, complete a high-quality job, and maintain a clean and organized workplace. Most importantly we hold ourselves accountable to maintain the respect, honesty, and good communication with our clients daily. Go Contractors LLC has 35 years of experience in this field of work. The owner of the company constantly maintains the project a priority as he efficiently checks for every detail of the project's progress. He believes it is an important aspect for the owner of the company to be involved and to ensure the client receives a satisfactory, high-quality home project.

"Nestor was great and professional and got the job done in one day. I will be reaching out to him for my next project. "

Umeka C on February 2026

Go Contractors LLC are specialists in a wide range of areas within residential construction and remodeling. There is no need to call any other contractor for your project as we have extensive experience working with residential projects in its entirety. Our goal is to make our clients satisfied, complete a high-quality job, and maintain a clean and organized workplace. Most importantly we hold ourselves accountable to maintain the respect, honesty, and good communication with our clients daily. Go Contractors LLC has 35 years of experience in this field of work. The owner of the company constantly maintains the project a priority as he efficiently checks for every detail of the project's progress. He believes it is an important aspect for the owner of the company to be involved and to ensure the client receives a satisfactory, high-quality home project.

"Nestor was great and professional and got the job done in one day. I will be reaching out to him for my next project. "

Umeka C on February 2026


Avatar for 3DF, LLC

3DF, LLC

4.63(
8
)
Approved Pro

3DF, LLC

4.63(
8
)
Approved Pro
Customers say: True professional
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
41 years of experience

3DF LLC is a locally owned and operated company serving the Reston, VA area and surrounding communities. 3DF, LLC is a full service design & builder of your dream home and living environment. We can help expand your existing structure for you and your family to enjoy for years. Professional craftsmanship, reasonable rates, and friendly customer service. Call us now!

"Could not be happier with Jim's work. Remodeled master bath, kitchen, replaced front door, plus several other smaller tasks. Easy to work with. Has a talented eye for style and design. Kept me informed throughout the process. Has experience with the design board in my town (Reston). Never up-charged. I've recommended him to several neighbors already."

Brian B on August 2024

3DF LLC is a locally owned and operated company serving the Reston, VA area and surrounding communities. 3DF, LLC is a full service design & builder of your dream home and living environment. We can help expand your existing structure for you and your family to enjoy for years. Professional craftsmanship, reasonable rates, and friendly customer service. Call us now!

"Could not be happier with Jim's work. Remodeled master bath, kitchen, replaced front door, plus several other smaller tasks. Easy to work with. Has a talented eye for style and design. Kept me informed throughout the process. Has experience with the design board in my town (Reston). Never up-charged. I've recommended him to several neighbors already."

Brian B on August 2024


Avatar for Stout Restorations, Inc.

Stout Restorations, Inc.

4.82(
17
)
Approved Pro

Stout Restorations, Inc.

4.82(
17
)
Approved Pro
Customers say: Super punctual
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
24 years of experience

Stout Restorations, Inc. is a general contracting company specializing in remodeling and restoration of historical homes. We provide services for residential, religious institutions, office buildings and restaurants clients. Stout Restorations, Inc. provides premium quality of craftsmanship and expertise to deliver a superior level of service to our clients. No matter what size of a project we manage each task with great attention to details, care and communicating positively towards mutual understanding with our clients to achieve a successful execution of a project.

"We needed an office area built in an open floor planned condominium, along with several bookcases. Jeff and his team proposed several ideas and we trusted his guidance. We could not be more happy with the results. The office area, bookcases and hidden storage are beautiful! Their work is top notch and well worth the money."

Doug E on April 2024

Stout Restorations, Inc. is a general contracting company specializing in remodeling and restoration of historical homes. We provide services for residential, religious institutions, office buildings and restaurants clients. Stout Restorations, Inc. provides premium quality of craftsmanship and expertise to deliver a superior level of service to our clients. No matter what size of a project we manage each task with great attention to details, care and communicating positively towards mutual understanding with our clients to achieve a successful execution of a project.

"We needed an office area built in an open floor planned condominium, along with several bookcases. Jeff and his team proposed several ideas and we trusted his guidance. We could not be more happy with the results. The office area, bookcases and hidden storage are beautiful! Their work is top notch and well worth the money."

Doug E on April 2024


Avatar for Reston Restoration Contracting LLC

Reston Restoration Contracting LLC

5.00(
2
)
Approved Pro

Reston Restoration Contracting LLC

5.00(
2
)
Approved Pro
11 years of experience
Warranties offered

At Reston Restoration, we bring nearly 15 years of experience serving Washington, D.C. and the surrounding region. Fully licensed and insured (up to $1,000,000), our team is dedicated to reliable, detail-oriented workmanship on every project. We specialize in roofing (asphalt, TPO, and specialty systems), flooring installation and refinishing, exterior and interior painting, custom carpentry, and full-scale home restoration. From estimate to final walkthrough, we combine skilled craftsmanship with clear communication so clients feel confident every step of the way. Whether replacing a roof, refinishing floors, restoring storm damage, or completing a major remodel, we treat every home as if it were our own. We pride ourselves on punctuality, cleanliness, and transparency—with clear estimates, documented change orders, and no surprise charges.

"I wish I could give Maarten and his team of contractors 10 stars. He far exceeded our expectations. His contractors/workers were always working, doing things that went beyond the scope of the project. Our house/yard was in better shape than when it started. He is one of the only, if not only, contractor I would have do worker prior to getting an estimate. While he was installing the new roof (with an estimate) we had his team working on eight other projects with just a verbal ballpark estimate and he came in below what was expected. Maarten is extremely knowledgeable and was able to resolve issues we have had that other contractors were unable to fix. I would recommend Reston Restoration for any project in the home. Thank you to the Reston Restoration's team"

Steve K on October 2025

At Reston Restoration, we bring nearly 15 years of experience serving Washington, D.C. and the surrounding region. Fully licensed and insured (up to $1,000,000), our team is dedicated to reliable, detail-oriented workmanship on every project. We specialize in roofing (asphalt, TPO, and specialty systems), flooring installation and refinishing, exterior and interior painting, custom carpentry, and full-scale home restoration. From estimate to final walkthrough, we combine skilled craftsmanship with clear communication so clients feel confident every step of the way. Whether replacing a roof, refinishing floors, restoring storm damage, or completing a major remodel, we treat every home as if it were our own. We pride ourselves on punctuality, cleanliness, and transparency—with clear estimates, documented change orders, and no surprise charges.

"I wish I could give Maarten and his team of contractors 10 stars. He far exceeded our expectations. His contractors/workers were always working, doing things that went beyond the scope of the project. Our house/yard was in better shape than when it started. He is one of the only, if not only, contractor I would have do worker prior to getting an estimate. While he was installing the new roof (with an estimate) we had his team working on eight other projects with just a verbal ballpark estimate and he came in below what was expected. Maarten is extremely knowledgeable and was able to resolve issues we have had that other contractors were unable to fix. I would recommend Reston Restoration for any project in the home. Thank you to the Reston Restoration's team"

Steve K on October 2025


Avatar for Kozan Construction, LLC

Kozan Construction, LLC

4.75(
28
)
Approved Pro

Kozan Construction, LLC

4.75(
28
)
Approved Pro
Customers say: True professional
41 years of experience
Free onsite estimate

We have over 10 years of experience in the business. Here at Kozan Construction, LLC, we pride our company on reliability, great communication, integrity and quality work. We are experts in our trade and will do our best to keep you as educated as we can on your particular task or project. We look forward to earning your business!

"OK, so Mr. Frank was very professional. All his team was very professional, very polite. They were on time and they went far and beyond of what they were supposed to do and did not charge me more than what they said, so I am very very very satisfied with the work that Frank did, and I wanted to thank him team for being so wonderful and such a great People, we don’t get that anymore in America, but he definitely gave me that. And I’m so happy that I hired him. I had five different people that I got proposals from, and I called all of them multiple times to check on things. And definitely Frank. He definitely made this right. So if anybody needs a Plumber, that’s the guy needs to be hired once again. Thank you very much for all your services. And I recommend Frank to anyone that needs plumbing work done Thank You,"

eddie j on December 2025

We have over 10 years of experience in the business. Here at Kozan Construction, LLC, we pride our company on reliability, great communication, integrity and quality work. We are experts in our trade and will do our best to keep you as educated as we can on your particular task or project. We look forward to earning your business!

"OK, so Mr. Frank was very professional. All his team was very professional, very polite. They were on time and they went far and beyond of what they were supposed to do and did not charge me more than what they said, so I am very very very satisfied with the work that Frank did, and I wanted to thank him team for being so wonderful and such a great People, we don’t get that anymore in America, but he definitely gave me that. And I’m so happy that I hired him. I had five different people that I got proposals from, and I called all of them multiple times to check on things. And definitely Frank. He definitely made this right. So if anybody needs a Plumber, that’s the guy needs to be hired once again. Thank you very much for all your services. And I recommend Frank to anyone that needs plumbing work done Thank You,"

eddie j on December 2025


Avatar for City Renovations & Remodeling LLC

City Renovations & Remodeling LLC

4.61(
212
)
Approved Pro

City Renovations & Remodeling LLC

4.61(
212
)
Approved Pro
Customers say: True professional
39 years of experience

City Renovations & Remodeling, LLC, a Professional Design Build company, with one simple concept in mind, “We Create Your Thoughts”. Michael Wiggs, founder and CEO, believes in providing customers with a one of a kind design and remodeling experience. This approach gives our customers the opportunity to custom design their own masterpiece and watch as CITY makes their dreams a reality. City Renovations & Remodeling, LLC is a licensed, bonded, and insured company serving the DC metropolitan area for over 18 years. We offer kitchen renovations and remodeling, bathroom renovations and remodeling, additions, decks, finished basements, driveways and much more. CITY offers quality home improvement projects using quality materials backed by a five-year warranty in most cases. Call us today at 1-888-630-CITY (2489) to see what we can do for you. Or Email us at city@cityrenovations.net

"I highly recommend City Renovations and Remodeling to new and experienced homeowners and investors. In fact, Mike Wiggs, owner of the company, was highly recommended to me from a trusted source. Mike has been my designer, general contractor and project manager for over three years. He and his team of subcontractors for all the trades and handymen have successfully completed numerous projects for me. The internal big jobs included Mike and his team remodeling my basement into a permitted apartment with an egress window, injection well system, and recessed lighting; remodeling my kitchen into a larger space, better layout and upgraded appliances, cabinets, backsplashes (e.g., switching from an electric cooktop island to a slide-in gas range and installing a peninsula); changing the location of the sliding door and a set of windows in my sunroom for better flow and sightline from the front door entry to the patio door leading to my wooded backyard; replacing the damaged one of the two HVAC systems (i.e., one for the first floor and basement and the other for the second floor); and whole house interior painting and decorative touches (accent walls, trim, etc.) The external big jobs included Mike and his team resolving the sources of severe water damage to my two-story front door entry area and installing a new door, side lites and stoop. He resolved other water problems at my house by installing upgraded, larger gutters connecting to a new underground drainage system, and re-grading a section of the backyard next to my house in order to better collect water coming onto the house and move it away from the house. The other jobs Mike and his team completed include installing decorative lighting in the front of my house and security lighting at the sides and back; installing and repairing wooden privacy fencing in my backyard; washing away years of mold, mildew and stains from the siding of my house; and installing shelving for two closets and the laundry room to increase my storage space. After years of City Renovations and Remodeling successfully improving or repairing my home, I hired the company to help me with an investment rental property. Mike completed a walk-thru assessment and report to supplement the information from the home inspector and appraiser. Through my pre-purchase consultation with Mike, I got a good idea of what it would take improve the property given my goals and budget. I look forward to working with Mike and his team to renovate the property."

Gina B on January 2019

City Renovations & Remodeling, LLC, a Professional Design Build company, with one simple concept in mind, “We Create Your Thoughts”. Michael Wiggs, founder and CEO, believes in providing customers with a one of a kind design and remodeling experience. This approach gives our customers the opportunity to custom design their own masterpiece and watch as CITY makes their dreams a reality. City Renovations & Remodeling, LLC is a licensed, bonded, and insured company serving the DC metropolitan area for over 18 years. We offer kitchen renovations and remodeling, bathroom renovations and remodeling, additions, decks, finished basements, driveways and much more. CITY offers quality home improvement projects using quality materials backed by a five-year warranty in most cases. Call us today at 1-888-630-CITY (2489) to see what we can do for you. Or Email us at city@cityrenovations.net

"I highly recommend City Renovations and Remodeling to new and experienced homeowners and investors. In fact, Mike Wiggs, owner of the company, was highly recommended to me from a trusted source. Mike has been my designer, general contractor and project manager for over three years. He and his team of subcontractors for all the trades and handymen have successfully completed numerous projects for me. The internal big jobs included Mike and his team remodeling my basement into a permitted apartment with an egress window, injection well system, and recessed lighting; remodeling my kitchen into a larger space, better layout and upgraded appliances, cabinets, backsplashes (e.g., switching from an electric cooktop island to a slide-in gas range and installing a peninsula); changing the location of the sliding door and a set of windows in my sunroom for better flow and sightline from the front door entry to the patio door leading to my wooded backyard; replacing the damaged one of the two HVAC systems (i.e., one for the first floor and basement and the other for the second floor); and whole house interior painting and decorative touches (accent walls, trim, etc.) The external big jobs included Mike and his team resolving the sources of severe water damage to my two-story front door entry area and installing a new door, side lites and stoop. He resolved other water problems at my house by installing upgraded, larger gutters connecting to a new underground drainage system, and re-grading a section of the backyard next to my house in order to better collect water coming onto the house and move it away from the house. The other jobs Mike and his team completed include installing decorative lighting in the front of my house and security lighting at the sides and back; installing and repairing wooden privacy fencing in my backyard; washing away years of mold, mildew and stains from the siding of my house; and installing shelving for two closets and the laundry room to increase my storage space. After years of City Renovations and Remodeling successfully improving or repairing my home, I hired the company to help me with an investment rental property. Mike completed a walk-thru assessment and report to supplement the information from the home inspector and appraiser. Through my pre-purchase consultation with Mike, I got a good idea of what it would take improve the property given my goals and budget. I look forward to working with Mike and his team to renovate the property."

Gina B on January 2019


Avatar for Living Color Painting & Restoration

Living Color Painting & Restoration

5.00(
50
)
Approved Pro

Living Color Painting & Restoration

5.00(
50
)
Approved Pro
Customers say: Super punctual
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
33 years of experience

Work with you to bring your visions to life. Living Colors Kitchen&Bath is a family owned and operated business specializing in Kitchen and Bath Remodeling. With more than 25 years of experience, we are serving Northern Virginia, Maryland and Washington DC. We are a licensed, insured, and bonded company that goes the distance to provide quality workmanship you can count on.

"I recently had an outstanding experience with Living Color for some work at my home. Matt is incredibly professional, and immediately made me feel at ease with his knowledge and approachability. What really set him apart is honesty. He explained everything clearly, ensuring I understood what needed to be done without pushing unnecessary services. The work was completed efficiently, with exceptional attention to detail, and at a very fair price. It's refreshing to find someone so reliable and trustworthy in this field. Matt's friendly and professional demeanor, combined with his evident skill and honesty, has made me a loyal customer. I will definitely be calling him again for any future needs. Highly recommend if you're looking for quality service you can trust."

Shlomo A on September 2024

Work with you to bring your visions to life. Living Colors Kitchen&Bath is a family owned and operated business specializing in Kitchen and Bath Remodeling. With more than 25 years of experience, we are serving Northern Virginia, Maryland and Washington DC. We are a licensed, insured, and bonded company that goes the distance to provide quality workmanship you can count on.

"I recently had an outstanding experience with Living Color for some work at my home. Matt is incredibly professional, and immediately made me feel at ease with his knowledge and approachability. What really set him apart is honesty. He explained everything clearly, ensuring I understood what needed to be done without pushing unnecessary services. The work was completed efficiently, with exceptional attention to detail, and at a very fair price. It's refreshing to find someone so reliable and trustworthy in this field. Matt's friendly and professional demeanor, combined with his evident skill and honesty, has made me a loyal customer. I will definitely be calling him again for any future needs. Highly recommend if you're looking for quality service you can trust."

Shlomo A on September 2024


Avatar for Manex Remodeling

Manex Remodeling

5.00(
10
)
Approved Pro

Manex Remodeling

5.00(
10
)
Approved Pro
Customers say: Quick response
36 years of experience
Free onsite estimate

Our commitment to open and frequent communication with our clients is essential to our success. We keep our clients updated every step of the way to ensure they are kept in the loop at all times. And when our clients have questions or suggestions about their projects, we welcome their input and feedback as valuable sources of inspiration for innovative new ideas. So if you’re looking for personal service and a streamlined remodeling experience from start to finish, look no further than Manex Remodeling!

"I am thrilled with the complete master bath remodel and kitchen that Tony & his incredible crew from Manex recently completed in my home. It was a great experience from start to finish. This company truly works as a team, communication channels are all open. Even when a hiccup occurred…they addressed it immediately & moved forward. The crew was professional & positive…really a pleasure to have them in my home. Tony went above & beyond in every aspect including making sure I was not simply satisfied with the work but truly happy. I also want to thank his crew member Jimmy . He did an exceptional job & really kept the work site clean every day. I will absolutely use Manex remodeling again for future projects."

. A on November 2023

Our commitment to open and frequent communication with our clients is essential to our success. We keep our clients updated every step of the way to ensure they are kept in the loop at all times. And when our clients have questions or suggestions about their projects, we welcome their input and feedback as valuable sources of inspiration for innovative new ideas. So if you’re looking for personal service and a streamlined remodeling experience from start to finish, look no further than Manex Remodeling!

"I am thrilled with the complete master bath remodel and kitchen that Tony & his incredible crew from Manex recently completed in my home. It was a great experience from start to finish. This company truly works as a team, communication channels are all open. Even when a hiccup occurred…they addressed it immediately & moved forward. The crew was professional & positive…really a pleasure to have them in my home. Tony went above & beyond in every aspect including making sure I was not simply satisfied with the work but truly happy. I also want to thank his crew member Jimmy . He did an exceptional job & really kept the work site clean every day. I will absolutely use Manex remodeling again for future projects."

. A on November 2023


Avatar for American Contractor Near Me!

American Contractor Near Me!

4.80(
5
)
Approved Pro

American Contractor Near Me!

4.80(
5
)
Approved Pro
Super Service Award
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
31 local quotes requested

American Contractor Near Me specializes in expert home remodeling and renovation. We deliver high-quality kitchen and bathroom renovations, basement finishing, and home additions. We prioritize customer satisfaction and budget-friendly solutions. Our Services: Kitchen Remodeling Bathroom Renovations Basement Finishing Home Additions Deck Construction Custom Patios Why Choose Us? Experienced remodeling contractors Quality workmanship Customer satisfaction guaranteed Free consultations Contact us for your dream home renovation today! 800-876-8393

"I had a great experience with the American Contractor Near Me. They remodeled our cafe's kitchen and the new look is amazing. It was an absolute pleasure to work with this company. The crew members were incredibly patient, taking the time to thoroughly explain all of our options and patiently answering every question we had. I will hire them again for all my remodeling needs in the future"

Tina O on June 2025

American Contractor Near Me specializes in expert home remodeling and renovation. We deliver high-quality kitchen and bathroom renovations, basement finishing, and home additions. We prioritize customer satisfaction and budget-friendly solutions. Our Services: Kitchen Remodeling Bathroom Renovations Basement Finishing Home Additions Deck Construction Custom Patios Why Choose Us? Experienced remodeling contractors Quality workmanship Customer satisfaction guaranteed Free consultations Contact us for your dream home renovation today! 800-876-8393

"I had a great experience with the American Contractor Near Me. They remodeled our cafe's kitchen and the new look is amazing. It was an absolute pleasure to work with this company. The crew members were incredibly patient, taking the time to thoroughly explain all of our options and patiently answering every question we had. I will hire them again for all my remodeling needs in the future"

Tina O on June 2025


Avatar for Millennium home renovations Inc

Millennium home renovations Inc

5.00(
5
)
Approved Pro

Millennium home renovations Inc

5.00(
5
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
26 years of experience

With over 14 years of experience, we have the skills, knowledge, and expertise necessary to handle any commercial or residential project, no matter the size. Our expertise also includes electricity, plumbing, and carpentry. We provide the most affordable services to ensure that we can work within your budget to provide you with the highest quality remodeling and construction services. Our work is not complete until you are 100% satisfied. If you are not completely satisfied, we will continue to work at no additional cost to you. We will not collect the remaining balance due until you are completely satisfied. We will check all work, as well, to ensure that all of our quality standards have been met. We are committed to providing quality work that you will be satisfied with for years to come.

"We have worked with Millennium on several projects for our older home. Refinishing a basement that was flooded, replacing cabinetry that had water damage, tiling a large kitchen backsplash, replacing doors, bathroom fans, sinks and building an elevated deck in our backyard. The crew has always been timely, clean and efficient. Dan has always worked with me to make good choices on materials with careful considerations of cost and quality. Their work is great, prices are reasonable and they have been willing to tackle some complicated projects in a non-standard home. I highly recommend them."

Signy W on September 2023

With over 14 years of experience, we have the skills, knowledge, and expertise necessary to handle any commercial or residential project, no matter the size. Our expertise also includes electricity, plumbing, and carpentry. We provide the most affordable services to ensure that we can work within your budget to provide you with the highest quality remodeling and construction services. Our work is not complete until you are 100% satisfied. If you are not completely satisfied, we will continue to work at no additional cost to you. We will not collect the remaining balance due until you are completely satisfied. We will check all work, as well, to ensure that all of our quality standards have been met. We are committed to providing quality work that you will be satisfied with for years to come.

"We have worked with Millennium on several projects for our older home. Refinishing a basement that was flooded, replacing cabinetry that had water damage, tiling a large kitchen backsplash, replacing doors, bathroom fans, sinks and building an elevated deck in our backyard. The crew has always been timely, clean and efficient. Dan has always worked with me to make good choices on materials with careful considerations of cost and quality. Their work is great, prices are reasonable and they have been willing to tackle some complicated projects in a non-standard home. I highly recommend them."

Signy W on September 2023

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FAQs for addition to existing structure building service projects in Washington DC, DC

You can typically raise your roof by four to eight feet, depending on your home's structure and roof design. The exact amount depends on factors like roof slope and framing support. Raising the roof creates additional interior space, enhances natural light, and increases your home's value. Consult a professional to determine the feasible height increase for your home.

Yes, you need a building permit to raise your roof. Obtaining a building permit ensures your project complies with local building codes and safety regulations. A professional contractor can assist with the permit and inspection process and ensure all legal and safety requirements are met. Your contractor will be familiar with building codes in your area, which can differ between cities or states.

While it's possible to raise a flat roof, it requires extensive structural modifications. Flat roofs lack the attic space and support structures of pitched roofs, so raising them involves significant engineering to ensure safety and durability. This process can be complex and costly, so professional assessment is essential before undertaking a project of this magnitude.

The Washington DC, DC homeowners’ guide to addition to existing structure building services

From average costs to expert advice, get all the answers you need to get your job done.