Top-rated addition to existing structure builders.

Get matched with top addition to existing structure builders in your area

Enter your zip and get matched with up to 3 pros

Matching on HomeAdvisor

Share some details icon
Share some details about your home project.
Match with local pros icon
Within moments, match with highly-rated local pros.
Compare quotes icon
Compare quotes and choose the best pro for the job.

Addition to existing structure builders in Triangle

Moses Housing LLC
2753 Sutton Rd
4.94(
8
)
Approved Pro
Moses Housing LLC
2753 Sutton Rd
4.94(
8
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
5 years of experience

We are committed to excellence in every aspect of our business. We uphold a standard of integrity bound by fairness, honesty, and personal responsibility. Our distinction is the quality of service we bring to our customers. Accurate knowledge of our trade combined with ability is what makes us true professionals. Above all, we are watchful of our customers' interests and make their concerns the basis of our business.

"They replaced my beaten wooden deck with a new composite one. The price was more than fair after shopping around. What I liked from the experience was the cleanliness and speed. Everything we agreed on they did in timely manner."

Charlie H on October 2023

We are committed to excellence in every aspect of our business. We uphold a standard of integrity bound by fairness, honesty, and personal responsibility. Our distinction is the quality of service we bring to our customers. Accurate knowledge of our trade combined with ability is what makes us true professionals. Above all, we are watchful of our customers' interests and make their concerns the basis of our business.

"They replaced my beaten wooden deck with a new composite one. The price was more than fair after shopping around. What I liked from the experience was the cleanliness and speed. Everything we agreed on they did in timely manner."

Charlie H on October 2023


HW Mechanical and Remodeling
65 Richland Rd
New on HomeAdvisorNew on Angi
Approved Pro
HW Mechanical and Remodeling
65 Richland Rd
New on AngiNew on HomeAdvisor
Approved Pro
15 years of experience
Free onsite estimate

We take great pride in our experience, expertise, quality, and customer service that we provide to meet the consumers' needs. It is our mission to provide excellent workmanship and complete customer satisfaction from start to completion of a project. To understand the needs and expectations of our customers, we take great care to work and communicate with every customer in a professional manner. Our reputation is based on service, safety, and quality, regardless of how large or small the job.

We take great pride in our experience, expertise, quality, and customer service that we provide to meet the consumers' needs. It is our mission to provide excellent workmanship and complete customer satisfaction from start to completion of a project. To understand the needs and expectations of our customers, we take great care to work and communicate with every customer in a professional manner. Our reputation is based on service, safety, and quality, regardless of how large or small the job.


Avatar for Best Homes
Best Homes
233 Morrisons Road
4.64(
176
)
Approved Pro
Best Homes
233 Morrisons Road
4.64(
176
)
Approved Pro
Customers say: True professional
Recommended by 92% of Angi customers
Recommended by 92% of HomeAdvisor customers
59 local quotes requested

Here at Best Homes, our company is based on the belief that our customers' needs are of the utmost importance. Our team is committed to meeting those needs. We welcome the opportunity to earn your trust and deliver you the best service. Please call today for a quote and thank you for doing so.

"We had an exceptional experience with Johnathan, Jeffry, and their team. Their professionalism, friendliness, and expertise stood out from the start to the finish of our basement project. The process was smooth, transparent, and free of surprises, with clear cost and material outlines. We appreciated their flexibility in allowing us to choose different materials and only charging the price difference. When we added more work mid-project, they were accommodating and maintained high-quality workmanship. They provided a wide selection of cabinets, flooring, tiles, mirrors, and bathroom faucets. The project was completed on time and within budget. We are thrilled with the results and plan to work with them again. Everyone who has seen our basement loves it! Overall, we highly recommend their services."

Sammaad S on February 2025

Here at Best Homes, our company is based on the belief that our customers' needs are of the utmost importance. Our team is committed to meeting those needs. We welcome the opportunity to earn your trust and deliver you the best service. Please call today for a quote and thank you for doing so.

"We had an exceptional experience with Johnathan, Jeffry, and their team. Their professionalism, friendliness, and expertise stood out from the start to the finish of our basement project. The process was smooth, transparent, and free of surprises, with clear cost and material outlines. We appreciated their flexibility in allowing us to choose different materials and only charging the price difference. When we added more work mid-project, they were accommodating and maintained high-quality workmanship. They provided a wide selection of cabinets, flooring, tiles, mirrors, and bathroom faucets. The project was completed on time and within budget. We are thrilled with the results and plan to work with them again. Everyone who has seen our basement loves it! Overall, we highly recommend their services."

Sammaad S on February 2025


Avatar for District Renovations LLC
District Renovations LLC
1336 Spring Hill Rd
4.88(
13
)
Approved Pro
District Renovations LLC
1336 Spring Hill Rd
4.88(
13
)
Approved Pro
Customers say: Terrific value
Recommended by 92% of Angi customers
Recommended by 92% of HomeAdvisor customers
55 local quotes requested

Here at District Renovations LLC, we pride our company on reliability, great communication, integrity, and quality work. We strongly believe in giving our absolute best in all of our projects no matter how big or small. We are experts in our trade and will always keep you educated on your particular task or project. We look forward to earning your business!

"I'm so happy with the work Alex, Kevin and the team did! Alex provided quotes, and high quality work in a very timely manner. The details are really beautiful, and I am especially pleased with the quality of cabinetry, painting, and most of all the beveling on the quartz counters! I had three bathrooms done and the painting jobs were crisp and the cabinetry is elegant. Alex gives very honest opinions on options and details."

Adriana M on March 2025

Here at District Renovations LLC, we pride our company on reliability, great communication, integrity, and quality work. We strongly believe in giving our absolute best in all of our projects no matter how big or small. We are experts in our trade and will always keep you educated on your particular task or project. We look forward to earning your business!

"I'm so happy with the work Alex, Kevin and the team did! Alex provided quotes, and high quality work in a very timely manner. The details are really beautiful, and I am especially pleased with the quality of cabinetry, painting, and most of all the beveling on the quartz counters! I had three bathrooms done and the painting jobs were crisp and the cabinetry is elegant. Alex gives very honest opinions on options and details."

Adriana M on March 2025


Avatar for RLD Builders, Inc.
RLD Builders, Inc.
7800 Cerro Gordo Road
4.96(
28
)
Approved Pro
RLD Builders, Inc.
7800 Cerro Gordo Road
4.96(
28
)
Approved Pro
Customers say: Quick response
15 local quotes requested
37 years of experience

RLD Builders, Inc., has been locally-owned and -operated for more than 20 years. We pride ourselves on quality work and excellent customer service. Call us today for your free estimate.

"null"

Charles W on November 2018

RLD Builders, Inc., has been locally-owned and -operated for more than 20 years. We pride ourselves on quality work and excellent customer service. Call us today for your free estimate.

"null"

Charles W on November 2018


Avatar for Eco Power Works
Eco Power Works
12012 English Maple Ln
5.00(
4
)
Approved Pro
Eco Power Works
12012 English Maple Ln
5.00(
4
)
Approved Pro
19 years of experience
Free onsite estimate

A leading construction company in Northern VA focuses on providing optimum quality in various construction services. We take great pride in our work as we have during our 20+ years in business. Thus, you can rest assured, that no matter what construction project we handle, we will be giving nothing but highly professional and expert works. Our galleries collections of photos from previous construction projects can attest to the amount of time, thought, and effort that we put into the services we provide.

"Eco Power Works did a great job on my kitchen and bathroom renovation ! Daryl and John were very patient listening to my ideas. They brought in an architect who was reasonably priced and made suggestions to overall designs which I am so glad they did ! The project from Start to finish was on schedule which O was pleasantly surprised - these guys kept their words and their workers were always on time respectful of my property and time. I like that they always checked with me when they took major steps to double check that everyone was on the same page - they communicated every step of the way and were very careful to to do the job right. I really love the beautiful cabinets and marble countertops which were my dreams. I am so glad I hired these guys - they really did a great job overall - will definitely recommend them to my friends and neighbors !"

Jane _ on April 2025

A leading construction company in Northern VA focuses on providing optimum quality in various construction services. We take great pride in our work as we have during our 20+ years in business. Thus, you can rest assured, that no matter what construction project we handle, we will be giving nothing but highly professional and expert works. Our galleries collections of photos from previous construction projects can attest to the amount of time, thought, and effort that we put into the services we provide.

"Eco Power Works did a great job on my kitchen and bathroom renovation ! Daryl and John were very patient listening to my ideas. They brought in an architect who was reasonably priced and made suggestions to overall designs which I am so glad they did ! The project from Start to finish was on schedule which O was pleasantly surprised - these guys kept their words and their workers were always on time respectful of my property and time. I like that they always checked with me when they took major steps to double check that everyone was on the same page - they communicated every step of the way and were very careful to to do the job right. I really love the beautiful cabinets and marble countertops which were my dreams. I am so glad I hired these guys - they really did a great job overall - will definitely recommend them to my friends and neighbors !"

Jane _ on April 2025


Arkco, LLC
2113 North Lincoln
4.50(
9
)
Approved Pro
Arkco, LLC
2113 North Lincoln
4.50(
9
)
Approved Pro
Customers say: Quick response
10 local quotes requested
3 years of experience

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 project or task. We look forward to earning your business!

"I signed a contract for work to be completed in 4 weeks. 4 Months later, work was finally (mostly) done - but only with extreme nagging on my part and excessive excuses and push back. The contractor only came to the project site if his sub-contractors created an issue (which was often). They dropped my A/C unit down a 10 foot hole, they didn't finish half the projects they said they would and completed the other half incorrectly based on hand drawings and gestures because neither the contractor or I could speak the same language as the sub-contractors, they made promises to show up and never did. Worst of all, they used design plans from a previous contractor that were approved by the city - but didn't use those plans and never updated the plans. The city inspector came and did not pass the project due to this discrepancy, but Vladimir told me it had passed. The city told me the permit expired. So - now Vladimir won't answer my emails and I have to pay someone else to fix it all."

rebecca d on March 2025

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 project or task. We look forward to earning your business!

"I signed a contract for work to be completed in 4 weeks. 4 Months later, work was finally (mostly) done - but only with extreme nagging on my part and excessive excuses and push back. The contractor only came to the project site if his sub-contractors created an issue (which was often). They dropped my A/C unit down a 10 foot hole, they didn't finish half the projects they said they would and completed the other half incorrectly based on hand drawings and gestures because neither the contractor or I could speak the same language as the sub-contractors, they made promises to show up and never did. Worst of all, they used design plans from a previous contractor that were approved by the city - but didn't use those plans and never updated the plans. The city inspector came and did not pass the project due to this discrepancy, but Vladimir told me it had passed. The city told me the permit expired. So - now Vladimir won't answer my emails and I have to pay someone else to fix it all."

rebecca d on March 2025


Avatar for HIVEX Basement Finishing Co.
HIVEX Basement Finishing Co.
6324 Old Plank Rd
4.89(
218
)
Approved Pro
HIVEX Basement Finishing Co.
6324 Old Plank Rd
4.89(
218
)
Approved Pro
Customers say: Quality work
Recommended by 95% of Angi customers
Recommended by 95% of HomeAdvisor customers
61 local quotes requested

HIVEX Basement Finishing Co. specializes in complete basement finishing for single family homeowners. Finishing your basement is an excellent way to dramatically expand your living space as well as increase the value of your home. HIVEX specializes in transforming your home into its full potential and at a great value. In recognition of our quality craftsmanship and attention to detail, we have received numerous prestigious awards and honors. Our team of professionals is dedicated to uphold our reputation of professional workmanship, honesty, and integrity. Our basement finishing specialists take pride in transforming homeowners needs and dreams into reality!

"From initial interview to final walkthrough, the folks at HIVEX were professional, courteous, and communicative, to the highest degree. And while the overall job was not very complex, the quality and attention to detail were outstanding. We would definitely recommend Jess, Bob, and the rest of the HIVEX crew to anyone looking to have their basement finished. The only fault we could find is that they /only/ do basements, or we would hire them for other remodeling work."

Matt A on March 2025

HIVEX Basement Finishing Co. specializes in complete basement finishing for single family homeowners. Finishing your basement is an excellent way to dramatically expand your living space as well as increase the value of your home. HIVEX specializes in transforming your home into its full potential and at a great value. In recognition of our quality craftsmanship and attention to detail, we have received numerous prestigious awards and honors. Our team of professionals is dedicated to uphold our reputation of professional workmanship, honesty, and integrity. Our basement finishing specialists take pride in transforming homeowners needs and dreams into reality!

"From initial interview to final walkthrough, the folks at HIVEX were professional, courteous, and communicative, to the highest degree. And while the overall job was not very complex, the quality and attention to detail were outstanding. We would definitely recommend Jess, Bob, and the rest of the HIVEX crew to anyone looking to have their basement finished. The only fault we could find is that they /only/ do basements, or we would hire them for other remodeling work."

Matt A on March 2025


Avatar for Thomas Custom Builders Inc
Thomas Custom Builders Inc
9058 Euclid Ave
4.76(
89
)
Approved Pro
Thomas Custom Builders Inc
9058 Euclid Ave
4.76(
89
)
Approved Pro
Customers say: Quality work
245 local quotes requested
21 years of experience

Whether you want to remodel your existing home or build a brand new one, Thomas Custom Builders can help. Our 70+ years of combined experience as Northern Virginia general contractors and our commitment to quality ensures your custom construction or design-build project will be a success. Be it a master suite, custom kitchen or home addition, we dig deep to learn what’s making you spend your time and resources on this particular project. We honestly discuss the costs associated with your goals, then we deliver what we do best: excellence in custom remodeling. The only thing that counts is finishing your job exactly the way you want it. No compromise.

"From initial design meeting to project completion Thomas Custom Builders kept promises, delivered outstanding work on time and on budget and exceeded our expectations in every way. Their on site team did everything they could to keep the work place clean and tidy so as disrupt our home life as little as possible. Team leadership kept us informed and made sure our questions were answered promptly. They are excellent tradesmen with exceptional skills. I’d give them 10 stars if I could."

Calvin S on March 2025

Whether you want to remodel your existing home or build a brand new one, Thomas Custom Builders can help. Our 70+ years of combined experience as Northern Virginia general contractors and our commitment to quality ensures your custom construction or design-build project will be a success. Be it a master suite, custom kitchen or home addition, we dig deep to learn what’s making you spend your time and resources on this particular project. We honestly discuss the costs associated with your goals, then we deliver what we do best: excellence in custom remodeling. The only thing that counts is finishing your job exactly the way you want it. No compromise.

"From initial design meeting to project completion Thomas Custom Builders kept promises, delivered outstanding work on time and on budget and exceeded our expectations in every way. Their on site team did everything they could to keep the work place clean and tidy so as disrupt our home life as little as possible. Team leadership kept us informed and made sure our questions were answered promptly. They are excellent tradesmen with exceptional skills. I’d give them 10 stars if I could."

Calvin S on March 2025


Avatar for BasementRemodeling.com
BasementRemodeling.com
1680 E Gude Dr
4.74(
253
)
Approved Pro
BasementRemodeling.com
1680 E Gude Dr
4.74(
253
)
Approved Pro
Customers say: Quality work
Recommended by 92% of Angi customers
Recommended by 92% of HomeAdvisor customers
334 local quotes requested

BasementRemodeling.com / Basement Masters - licensed and insured, award winning Basement Remodeling and Finishing company. Highest rated basement renovation contractor in Maryland. Finished Basements are our specialty. We specialize in custom basement remodeling and finishing and other large-scale remodels. We offer free in home and over-the-phone estimate and consultation. Here at BasementRemodeling.com we believe that QUALITY AND EXCEPTIONAL CRAFTSMANSHIP must always come along with AFFORDABILITY. keywords: finished basement basements remodeling.

"Job was performed in a timely manner. Great communication throughout project. Site kept clean during construction."

Erin K on October 2024

BasementRemodeling.com / Basement Masters - licensed and insured, award winning Basement Remodeling and Finishing company. Highest rated basement renovation contractor in Maryland. Finished Basements are our specialty. We specialize in custom basement remodeling and finishing and other large-scale remodels. We offer free in home and over-the-phone estimate and consultation. Here at BasementRemodeling.com we believe that QUALITY AND EXCEPTIONAL CRAFTSMANSHIP must always come along with AFFORDABILITY. keywords: finished basement basements remodeling.

"Job was performed in a timely manner. Great communication throughout project. Site kept clean during construction."

Erin K on October 2024

...
Showing 1-10 of 929

Addition to existing structure building services FAQs

How far you can push a room depends on the structure you choose. A cantilevered bump-out can extend 24 inches before building codes require its own footing or foundation. Anything longer needs engineered support and a permit. Check local codes or consult with a structural professional before finalizing plans to ensure your design remains safe and compliant.

Most bump-outs are completed within one to four weeks, even with minimal electrical, plumbing, or HVAC work. Their compact size means less demolition, simpler inspections, and fewer weather-related delays compared to a full-scale addition. Your contractor can provide a more precise timeline once they have determined the scope, materials, and permit schedule, but plan on having the extra square footage ready in approximately a month.

The 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.
built-in outdoor kitchen with grill and sink
Apr 30, 2025
Apr 30, 2025
Budget for outdoor kitchen costs based on factors such as appliances, materials, permits, labor, amenities, kitchen size, customizations, and more.
BLUE TWO STORY HOME
Apr 30, 2025
Apr 30, 2025
Budget for the cost to add a second story based on factors such as size, foundation work, materials, labor, permits, post-construction cleaning, and more.
small bathroom that has been updated in a remodel
Apr 29, 2025
Apr 29, 2025
Budget for the cost to remodel a small bathroom based on factors such as required fixtures, bathroom size, labor, remodel type, site prep, and more.
guest house in the backyard
Apr 27, 2025
Apr 27, 2025
Need to build a guest house? Here’s how much it costs, what factors affect cost, and what to expect.
Kitchen view leading into dining area
Apr 28, 2025
Apr 28, 2025
Use this guide to budget for bump-out addition costs based on factors such as room size, room type, labor, finishes, permits, and more.
House roof with nice window
Apr 28, 2025
Apr 28, 2025
Budget for dormer addition costs based on factors such as roof type, framing, customizations, reinforcement, cladding, labor, and more.
Share project details to get started.