Top-rated addition to existing structure builders.

Get matched with top addition to existing structure builders in Lanham, MD

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.

Find Addition to existing structure builders in Lanham

Avatar for General Remodeling Group

General Remodeling Group

4.92(
21
)
Approved Pro

General Remodeling Group

4.92(
21
)
Approved Pro
Customers say: True professional
24 years of experience
Free onsite estimate

General Construction Millworks, LLC, DBA GENERAL REMODELING GROUP, is a licensed, insured, and bonded full service remodeling contractor. The following are the main features of our PROJECT COMPLETION POLICY, cost of which are included in all of our proposals: 1) QUALITY FIRST. We have high quality standards and stress meticulous attention to details. 2) We make DRAWINGS together with our ARCHITECTS and ENGINEERS, obtain all required municipally PERMITS, comply with all rules/regulations. 3) We FORESEE HIDDEN JOBS, which are necessary to get done, in order to complete projects, to our best extent, and make Home-Owners aware of them and of their cost, so that Home-Owners could budget project completion accurately. 4) We help our Customers to DESIGN, choose, order/obtain, and deliver materials, associated with projects. 5) We regularly REMOVE DEBRIS, resulted from our work, keep job sites CLEAN to reasonable extent. 6) We provide a 3 year WARRANTY.

"I highly recommend General Remodeling Group! We hired them to update the exterior of our home, and their team did an amazing job. Dan, the project manager, really listened to my ideas and quickly designed the perfect custom frame for our door. The whole team was responsive, punctual, and easy to work with. Their attention to detail in the carpentry was impressive. We absolutely loved the final result and had a great experience working with them!"

Maria W on August 2025

General Construction Millworks, LLC, DBA GENERAL REMODELING GROUP, is a licensed, insured, and bonded full service remodeling contractor. The following are the main features of our PROJECT COMPLETION POLICY, cost of which are included in all of our proposals: 1) QUALITY FIRST. We have high quality standards and stress meticulous attention to details. 2) We make DRAWINGS together with our ARCHITECTS and ENGINEERS, obtain all required municipally PERMITS, comply with all rules/regulations. 3) We FORESEE HIDDEN JOBS, which are necessary to get done, in order to complete projects, to our best extent, and make Home-Owners aware of them and of their cost, so that Home-Owners could budget project completion accurately. 4) We help our Customers to DESIGN, choose, order/obtain, and deliver materials, associated with projects. 5) We regularly REMOVE DEBRIS, resulted from our work, keep job sites CLEAN to reasonable extent. 6) We provide a 3 year WARRANTY.

"I highly recommend General Remodeling Group! We hired them to update the exterior of our home, and their team did an amazing job. Dan, the project manager, really listened to my ideas and quickly designed the perfect custom frame for our door. The whole team was responsive, punctual, and easy to work with. Their attention to detail in the carpentry was impressive. We absolutely loved the final result and had a great experience working with them!"

Maria W on August 2025


Avatar for GaaJ

GaaJ

5.00(
2
)
Approved Pro

GaaJ

5.00(
2
)
Approved Pro
Customers say: Quick response
20 years of experience
Free onsite estimate

We're a locally owned and operated company that values honesty and integrity and treats your home as if it were our own. We offer a variety of General Contractor Home Improvement services that are customizable to each individual project. We specialize in Additions and Kitchen Remodels, but also offer a wide range of expertise for a variety of other projects. We pride ourselves on the quality of our work as well as our commitment to outstanding results. We look forward to building lasting relationships and guarantee your satisfaction!

"GAAJ’s team were truly professionals. They listened to our needs and made my grandmother’s vision of a room, a reality. They were passionate and went above and beyond with details on the construction. If you have any building needs, I highly recommend GAAJ!"

Stephanie K on August 2025

We're a locally owned and operated company that values honesty and integrity and treats your home as if it were our own. We offer a variety of General Contractor Home Improvement services that are customizable to each individual project. We specialize in Additions and Kitchen Remodels, but also offer a wide range of expertise for a variety of other projects. We pride ourselves on the quality of our work as well as our commitment to outstanding results. We look forward to building lasting relationships and guarantee your satisfaction!

"GAAJ’s team were truly professionals. They listened to our needs and made my grandmother’s vision of a room, a reality. They were passionate and went above and beyond with details on the construction. If you have any building needs, I highly recommend GAAJ!"

Stephanie K on August 2025


Sima Contracting LLC

5.00(
2
)
Approved Pro

Sima Contracting LLC

5.00(
2
)
Approved Pro
6 years of experience
Free onsite estimate

Sima Contracting is 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.

"Superior work. They are wonderful and trustworthy people who will make sure you are pleased with the process and results. They completed extensive work on both the exterior and interior of this 1700s home. We often have neighbors and friends complimenting the work that was done, and wanting to have the same work done on their homes!"

Linda B on January 2026

Sima Contracting is 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.

"Superior work. They are wonderful and trustworthy people who will make sure you are pleased with the process and results. They completed extensive work on both the exterior and interior of this 1700s home. We often have neighbors and friends complimenting the work that was done, and wanting to have the same work done on their homes!"

Linda B on January 2026


Misha's Home Improvement, Inc.

4.67(
24
)
Approved Pro

Misha's Home Improvement, Inc.

4.67(
24
)
Approved Pro
Customers say: Terrific value
Recommended by 91% of Angi customers
Recommended by 91% of HomeAdvisor customers
35 years of experience

Misha's Home Improvement, Inc., has been in business for more than 16 years and all of our employees are skilled European craftsman. Call us for your entire wood and ceramic tile flooring needs!

"Wonderful "

Catherine L on July 2025

Misha's Home Improvement, Inc., has been in business for more than 16 years and all of our employees are skilled European craftsman. Call us for your entire wood and ceramic tile flooring needs!

"Wonderful "

Catherine L on July 2025


Avatar for Home Breakthrough LLC

Home Breakthrough LLC

4.77(
160
)
Approved Pro

Home Breakthrough LLC

4.77(
160
)
Approved Pro
Super Service Award
Customers say: Quality work
Recommended by 91% of Angi customers
Recommended by 91% of HomeAdvisor customers
67 local quotes requested

Home Breakthrough is a local, family owned home remodeling business. Francisco and Honika Victoriano, combine old-word craftsmanship with contemporary building techniques to create extraordinary new living spaces. They take great pride in the home renovation work they do. The remodeling contractors at Home Breakthrough have a strong reputation for delivering high quality construction and home renovation projects, working with diligence and honesty. The Victorianos have built their remodeling business & reputation over the years by providing excellent work at highly competitive prices. 14-15 workers. Cost is determined by the job. Free design consultations. No travel charges. No service charges. May contact through email. Award winning .

"I have been using the team at home breakthrough for years. At this point they fully remodeled my basement including adding a new bathroom/wet bar. As well as a huge overhaul of my main floor bath and laundry room. The quality of their work is outstanding. I also love their quote structure. They start with a labor number and give you an idea of what materials will cost but it’s essentially a chose your own adventure on how high end you want to go on features etc and they are very helpful to guide you on the way as well as have great experts to point you to on cabinets, fixtures, tile, countertops etc to help you achieve your vision. Look forward to having them back for my next project!"

Scott A on March 2025

Home Breakthrough is a local, family owned home remodeling business. Francisco and Honika Victoriano, combine old-word craftsmanship with contemporary building techniques to create extraordinary new living spaces. They take great pride in the home renovation work they do. The remodeling contractors at Home Breakthrough have a strong reputation for delivering high quality construction and home renovation projects, working with diligence and honesty. The Victorianos have built their remodeling business & reputation over the years by providing excellent work at highly competitive prices. 14-15 workers. Cost is determined by the job. Free design consultations. No travel charges. No service charges. May contact through email. Award winning .

"I have been using the team at home breakthrough for years. At this point they fully remodeled my basement including adding a new bathroom/wet bar. As well as a huge overhaul of my main floor bath and laundry room. The quality of their work is outstanding. I also love their quote structure. They start with a labor number and give you an idea of what materials will cost but it’s essentially a chose your own adventure on how high end you want to go on features etc and they are very helpful to guide you on the way as well as have great experts to point you to on cabinets, fixtures, tile, countertops etc to help you achieve your vision. Look forward to having them back for my next project!"

Scott A on March 2025


Avatar for Elevate Design Build, LLC

Elevate Design Build, LLC

4.80(
25
)
Approved Pro

Elevate Design Build, LLC

4.80(
25
)
Approved Pro
Customers say: Quality work
Recommended by 96% of Angi customers
Recommended by 96% of HomeAdvisor customers
35 local quotes requested

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!

"All the people at Elevate Design and Build were amazing and a pleasure to work with. We doubled the size of our house including tripling the size of the kitchen, knocking out walls to create an open floor plan and added a three car garage with home office over the garage. They even recommended modifications to our original blueprints which were excellent. All their workers friendly and did a first class job. Went totally above and beyond our expectations. One year later we have not had one single problem with any of the work. Total integrity. If any issue came up, the company absorbed the cost - not the customer. Everything they did was done perfectly. We didn't have a single issue or complaint during the entire process. I give them my highest personal recommendation. I would never use anyone else."

Stephen M on August 2024

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!

"All the people at Elevate Design and Build were amazing and a pleasure to work with. We doubled the size of our house including tripling the size of the kitchen, knocking out walls to create an open floor plan and added a three car garage with home office over the garage. They even recommended modifications to our original blueprints which were excellent. All their workers friendly and did a first class job. Went totally above and beyond our expectations. One year later we have not had one single problem with any of the work. Total integrity. If any issue came up, the company absorbed the cost - not the customer. Everything they did was done perfectly. We didn't have a single issue or complaint during the entire process. I give them my highest personal recommendation. I would never use anyone else."

Stephen M on August 2024


Avatar for Elite Home Remodeling Group

Elite Home Remodeling Group

5.00(
27
)
Approved Pro

Elite Home Remodeling Group

5.00(
27
)
Approved Pro
Super Service Award
Customers say: Quick response
17 local quotes requested
18 years of experience

At Elite Home Remodeling Group, LLC, we specialize in Kitchen and Bath Remodeling--is your premier remodeling company for all your home improvement needs. With over 14 years in the industry, we are dedicated to success and looking forward to doing business with you.

"Elite remodeling did an amazing job on my mother's DC home. They performed a complete interior and exterior remodel - all bedrooms, bathroom, kitchen, living and dining room, hardwood floors, front and back porch remodel. In addition, they installed all the appliances - kitchen and laundry appliances. They worked efficiently, professionally, and resolved any issues that were unknown to me. I would highly recommend them for any job- in particular in the DMV area. They are One stop shop - capable of resolving Plumbing, electrical, and carpentry and construction issues. They are professional and trustworthy. Once again, I highly, highly recommend them. Diane M. Benjamin (DC Home Owner)"

Diane B on November 2025

At Elite Home Remodeling Group, LLC, we specialize in Kitchen and Bath Remodeling--is your premier remodeling company for all your home improvement needs. With over 14 years in the industry, we are dedicated to success and looking forward to doing business with you.

"Elite remodeling did an amazing job on my mother's DC home. They performed a complete interior and exterior remodel - all bedrooms, bathroom, kitchen, living and dining room, hardwood floors, front and back porch remodel. In addition, they installed all the appliances - kitchen and laundry appliances. They worked efficiently, professionally, and resolved any issues that were unknown to me. I would highly recommend them for any job- in particular in the DMV area. They are One stop shop - capable of resolving Plumbing, electrical, and carpentry and construction issues. They are professional and trustworthy. Once again, I highly, highly recommend them. Diane M. Benjamin (DC Home Owner)"

Diane B on November 2025


Avatar for Willis Builders Inc

Willis Builders Inc

4.64(
322
)
Approved Pro

Willis Builders Inc

4.64(
322
)
Approved Pro
Customers say: Super punctual
57 local quotes requested
22 years of experience

General contractor servicing Montgomery County and parts of Washington DC. Willis Builders is a family owned and operated company, that specializes in additions, kitchen, bathroom and basement remodeling. Our team is skilled in all aspects of residential construction. Willis Builders has built a business on honesty, dedication and hard work. Our goal is to make your renovation dream come true! Contact us today to schedule a free estimate.

"When we moved into our newly purchased townhouse in Germantown, Md, we quickly realized that our kitchen is very old and outdated. We spend a lot of quality time in our kitchen and it had to be remodeled. When we met Willis Builders and their amazing project manager, Willie Acosta, we got our own designers and best advisors too. Everyone on their team was professional, courteous, kind, polite and knowledgeable. We are happy with our new countertops, beautiful backslash and kitchen floors. They also helped us fix our deck and bring it back to code and best condition. Thank you guys for everything ❤️ "

Natasha P on January 2026

General contractor servicing Montgomery County and parts of Washington DC. Willis Builders is a family owned and operated company, that specializes in additions, kitchen, bathroom and basement remodeling. Our team is skilled in all aspects of residential construction. Willis Builders has built a business on honesty, dedication and hard work. Our goal is to make your renovation dream come true! Contact us today to schedule a free estimate.

"When we moved into our newly purchased townhouse in Germantown, Md, we quickly realized that our kitchen is very old and outdated. We spend a lot of quality time in our kitchen and it had to be remodeled. When we met Willis Builders and their amazing project manager, Willie Acosta, we got our own designers and best advisors too. Everyone on their team was professional, courteous, kind, polite and knowledgeable. We are happy with our new countertops, beautiful backslash and kitchen floors. They also helped us fix our deck and bring it back to code and best condition. Thank you guys for everything ❤️ "

Natasha P on January 2026


"We have used The North Star Companies for several jobs in the past, with the most recent being the largest. We hired them do a complete renovation of our home in Severn. The job grew larger as demo began and turned into a job requiring the rebuild of exterior walls, demo of concrete slabs - basically the house had to be rebuilt from the ground up. All new plumbing, electric, framing, windows, siding, roof, etc. I have known Chris for 20+ years and was confident that our forever home would be solid and done right. We had a few hiccups throughout the process - as this was done during Covid, so there were supply issues, delays and so forth, but Chris and his guys did an amazing job. We couldn't be happier and are continuously getting compliments on our beautiful home. Chris has been and will continue to be our go-to for any construction needs for us and our family and friends."

toni l on December 2023

The North Star Companies, LLC, is the premier contracting company in MD. We pride ourselves on delivering a quality service, at an affordable price, with the customer's best interests at heart.

"We have used The North Star Companies for several jobs in the past, with the most recent being the largest. We hired them do a complete renovation of our home in Severn. The job grew larger as demo began and turned into a job requiring the rebuild of exterior walls, demo of concrete slabs - basically the house had to be rebuilt from the ground up. All new plumbing, electric, framing, windows, siding, roof, etc. I have known Chris for 20+ years and was confident that our forever home would be solid and done right. We had a few hiccups throughout the process - as this was done during Covid, so there were supply issues, delays and so forth, but Chris and his guys did an amazing job. We couldn't be happier and are continuously getting compliments on our beautiful home. Chris has been and will continue to be our go-to for any construction needs for us and our family and friends."

toni l on December 2023


Avatar for D & H Demolition, LLC

D & H Demolition, LLC

5.00(
11
)
Approved Pro

D & H Demolition, LLC

5.00(
11
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
263 local quotes requested

Leading the industry by providing a comprehensive service to residential & commercial clients in need of selective & structural demolition , hazardous material abatement and disposal , as well as mold remediation services. Call or click for your FREE estimate today!

"Excellent job excellent people"

Denise W on June 2025

Leading the industry by providing a comprehensive service to residential & commercial clients in need of selective & structural demolition , hazardous material abatement and disposal , as well as mold remediation services. Call or click for your FREE estimate today!

"Excellent job excellent people"

Denise W on June 2025

...
Showing 1-10 of 1048
FAQs for addition to existing structure building service projects in Lanham, MD

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 Lanham, MD 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.