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Addition to existing structure builders in Chevy Chase

Avatar for East Coast Concrete LLC
East Coast Concrete LLC
7643 Paradise Beach Road
4.08(
18
)
Approved Pro
East Coast Concrete LLC
7643 Paradise Beach Road
4.08(
18
)
Approved Pro
1 years of experience
Free onsite estimate

East Coast Concrete LLC, proudly servicing Pasadena, MD and the surrounding areas. Our goal is to complete your project to perfection. We look forward to building long lasting relationships with the customers that we serve. We look forward to serving you. Call us today! You will not be disappointed.

"I needed the concrete stoop in front of my house re-poured and re-shaped. The job is coming along beautifully. Luke is a pleasure to work with and is managing my project very efficiently. He is friendly and knowledgeable and has answered all my concerns promptly. I look forward to seeing the job completed very soon."

Sharon G on February 2025

East Coast Concrete LLC, proudly servicing Pasadena, MD and the surrounding areas. Our goal is to complete your project to perfection. We look forward to building long lasting relationships with the customers that we serve. We look forward to serving you. Call us today! You will not be disappointed.

"I needed the concrete stoop in front of my house re-poured and re-shaped. The job is coming along beautifully. Luke is a pleasure to work with and is managing my project very efficiently. He is friendly and knowledgeable and has answered all my concerns promptly. I look forward to seeing the job completed very soon."

Sharon G on February 2025


Avatar for NC Repair and Remodeling
NC Repair and Remodeling
14117 Bauer Drive
5.00(
2
)
Approved Pro
NC Repair and Remodeling
14117 Bauer Drive
5.00(
2
)
Approved Pro
Customers say: Quick response
4 years of experience
Free onsite estimate

NC Repair and Remodeling is your trusted partner in transforming spaces. With our expertise spanning from residential repairs and renovations to commercial build-outs and service contracts. We're here to make your dreams a reality. Let us help you create the home or business you've always envisioned, where comfort, design and functionality intertwine. Together, let's make your space truly exceptional and tailored to your unique needs.

"NC Repair were amazing!!! Their attention to detail is the best. The team was very clean and courteous. They made the experience very easy. We love the outcome of the remodeling.Definitely calling them again."

Oscar J on October 2021

NC Repair and Remodeling is your trusted partner in transforming spaces. With our expertise spanning from residential repairs and renovations to commercial build-outs and service contracts. We're here to make your dreams a reality. Let us help you create the home or business you've always envisioned, where comfort, design and functionality intertwine. Together, let's make your space truly exceptional and tailored to your unique needs.

"NC Repair were amazing!!! Their attention to detail is the best. The team was very clean and courteous. They made the experience very easy. We love the outcome of the remodeling.Definitely calling them again."

Oscar J on October 2021


Avatar for GaaJ
GaaJ
11711 Ash Rd
5.00(
1
)
Approved Pro
GaaJ
11711 Ash Rd
5.00(
1
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
19 years of experience

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!

""

Debra J on May 2023

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!

""

Debra J on May 2023


Avatar for B Burns Company, LLC
B Burns Company, LLC
5019 Rodman Road
4.58(
13
)
Approved Pro
B Burns Company, LLC
5019 Rodman Road
4.58(
13
)
Approved Pro
Customers say: Quick response
Recommended by 92% of Angi customers
Recommended by 92% of HomeAdvisor customers
18 years of experience

B. Burns Company, LLC, is the only solution you need for all your remodel projects! We take pride in our quality and craftsmanship, and you will see this in the end product! Call today!

"Brian and his team were very responsive and did a great job and within budget. Brian was easy to work with and well organized."

Martin M on December 2019

B. Burns Company, LLC, is the only solution you need for all your remodel projects! We take pride in our quality and craftsmanship, and you will see this in the end product! Call today!

"Brian and his team were very responsive and did a great job and within budget. Brian was easy to work with and well organized."

Martin M on December 2019


Avatar for Expertiers Design & Build, LLC
Expertiers Design & Build, LLC
451 Hungerford Drive, Suite 119-363
4.92(
12
)
Approved Pro
Expertiers Design & Build, LLC
451 Hungerford Drive, Suite 119-363
4.92(
12
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
8 years of experience

Expertiers Design & Build, LLC, is a locally owned and operated company that values honesty, integrity, and treats your home as if it were our own. We offer a variety of home improvement services that are customizable to each individual project. We specialize in additions, bathroom remodels, 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!

"Burak and his team did essentially a full gut renovation or our new house in DC. Burak was very attentive to our preferences and offered good insight throughout the project. The quality of the work was very good and Burak did a great job communicating with us throughout the project. The project was complete relatively on time as scheduled and we are very happy with our house."

Tyler M on September 2022

Expertiers Design & Build, LLC, is a locally owned and operated company that values honesty, integrity, and treats your home as if it were our own. We offer a variety of home improvement services that are customizable to each individual project. We specialize in additions, bathroom remodels, 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!

"Burak and his team did essentially a full gut renovation or our new house in DC. Burak was very attentive to our preferences and offered good insight throughout the project. The quality of the work was very good and Burak did a great job communicating with us throughout the project. The project was complete relatively on time as scheduled and we are very happy with our house."

Tyler M on September 2022


Avatar for Green State Pro, LLC
Green State Pro, LLC
3 Alderleaf Court
New on HomeAdvisorNew on Angi
Approved Pro
Green State Pro, LLC
3 Alderleaf Court
New on AngiNew on HomeAdvisor
Approved Pro
5 years of experience
Free onsite estimate

Green State Pro LLC invites you to experience a tradition of customer satisfaction that will exceed your greatest expectations. Our professionalism and quality workmanship will accurately reflect your taste and lifestyle. From conception to completion, we work with you to ensure you have a luxurious space that feels like home. Please call today to set up a free consultation, and see our work at GreenStatePro.com

Green State Pro LLC invites you to experience a tradition of customer satisfaction that will exceed your greatest expectations. Our professionalism and quality workmanship will accurately reflect your taste and lifestyle. From conception to completion, we work with you to ensure you have a luxurious space that feels like home. Please call today to set up a free consultation, and see our work at GreenStatePro.com


Cliffbrook Construction, LLC
4003 92nd Avenue
5.00(
7
)
Approved Pro
Cliffbrook Construction, LLC
4003 92nd Avenue
5.00(
7
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
17 years of experience

Cliffbrook Construction LLC is the premier home improvement company serving Prince Georges and surrounding areas since 2008. Our #1 goal as a company is having complete customer satisfaction and there is no job that is too big or too small. We offer both residential and commercial - if you want the job done right, call Noe today!

"Contractor started and ended the project as scheduled, on time, and within budget."

Martin S on June 2023

Cliffbrook Construction LLC is the premier home improvement company serving Prince Georges and surrounding areas since 2008. Our #1 goal as a company is having complete customer satisfaction and there is no job that is too big or too small. We offer both residential and commercial - if you want the job done right, call Noe today!

"Contractor started and ended the project as scheduled, on time, and within budget."

Martin S on June 2023


Avatar for Bent Palm Construction
Bent Palm Construction
P.O. Box 1830
4.74(
21
)
Approved Pro
Bent Palm Construction
P.O. Box 1830
4.74(
21
)
Approved Pro
Customers say: Quality work
41 local quotes requested
40 years of experience

Bent Palm is a complete residential design build company specializing in decks, porches, patios, fire-pits, outdoor kitchens, and more. We have a professional team of specialists that are ready to create a custom plan for your individual needs. Our innovative 3D designs are created to complement the aesthetic of your home and natural surroundings of your property. At Bent Palm, we love what we do and are confident that you will appreciate working with a professional design build company giving each customer the individual attention from the first design consultation to project completion.

"Bent Palm gave me a great quote and completed the project on time. From my perspective, the other key component is that he was able to get approval of all of the various inspections by Montgomery County Maryland on time. Obviously Bent Palm has an ongoing relationship with the county building inspectors and the project was constructed properly and on time. Another reason that I’m giving Ben Palm a five star evaluation is because a previous contractor informed me that the only way I could put a screened in porch on the back of my house is to file for a variance. Bent Palm built my screened in porch with no variance and approved by the county. Further the quality of the work was outstanding. Not only did he have contractors to do carpentry work, but he had a great electrician and an even better painter. At the end of the day, the project turned out fantastic."

Roger M on April 2025

Bent Palm is a complete residential design build company specializing in decks, porches, patios, fire-pits, outdoor kitchens, and more. We have a professional team of specialists that are ready to create a custom plan for your individual needs. Our innovative 3D designs are created to complement the aesthetic of your home and natural surroundings of your property. At Bent Palm, we love what we do and are confident that you will appreciate working with a professional design build company giving each customer the individual attention from the first design consultation to project completion.

"Bent Palm gave me a great quote and completed the project on time. From my perspective, the other key component is that he was able to get approval of all of the various inspections by Montgomery County Maryland on time. Obviously Bent Palm has an ongoing relationship with the county building inspectors and the project was constructed properly and on time. Another reason that I’m giving Ben Palm a five star evaluation is because a previous contractor informed me that the only way I could put a screened in porch on the back of my house is to file for a variance. Bent Palm built my screened in porch with no variance and approved by the county. Further the quality of the work was outstanding. Not only did he have contractors to do carpentry work, but he had a great electrician and an even better painter. At the end of the day, the project turned out fantastic."

Roger M on April 2025


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
57 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 Solid Foundation Construction LLC
Solid Foundation Construction LLC
9514 Shelly Krasnow Lane
5.00(
3
)
Approved Pro
Solid Foundation Construction LLC
9514 Shelly Krasnow Lane
5.00(
3
)
Approved Pro
67 local quotes requested
31 years of experience

Solid Foundation Construction is dedicated to providing our customers with the best quality and craftsmanship. We are here to build relationships with our customers and communities and to provide our employees with a great place to work. We look forward to working with you.

"Great customer service. Transparency and time management was the key, and he delivered it. He advised me on using quality products which I appreciate. Will definitely recommend "

Ham A on February 2025

Solid Foundation Construction is dedicated to providing our customers with the best quality and craftsmanship. We are here to build relationships with our customers and communities and to provide our employees with a great place to work. We look forward to working with you.

"Great customer service. Transparency and time management was the key, and he delivered it. He advised me on using quality products which I appreciate. Will definitely recommend "

Ham A on February 2025

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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.
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