How much do addition contractors typically cost?
- Gaithersburg, Maryland Average$81,330
- Typical Range$43,250 - $127,416
- Low End - High End$15,000 - $216,000

"Our kitchen remodel with Top Remodeling was a breeze! Ben's attention to detail made all the difference. We couldn't be happier with our beautiful new kitchen."
Randy A. in October 2023

Carpentry, Home Remodeling, Interior Trim , and 2 more
"Noel and his team did a speedy and fantastic job installing the fence. Would recommend, and I plan on calling him again when it’s time to re-do my deck."
Bradley R. in November 2021

Remodeling
"My kitchen remodeled on time with good job andvreasonable price."
F00F6F0EF46C8C2832B5A2CA3B48235075D14B9EB3392667BFC7A0821EC3D6B7 D. in February 2025

New Kitchens, We Specialize in Basements, First and Second-Floor Additions are Our Specialty , and 2 more
"Metropolitan Energy Savers Company was a great company to work with. They were very professional and completed the project in a very fast time period. There were some unknow surprises that came up during the course of the project and these were dealt with and did not slow down the progress of the addition. Any deviations from the original contract were communicated to me with additional costs before any work was completed. I am extremely satisified with the addition that they built for me."
George B. in October 2008

New construction. Additions, basements, Kitchens and baths, Structural repairs, New construction. Additions, basements, Kitchens and baths , and 7 more
"Renovec went above and beyond for our bathroom demo and remodel, a number of upgrades to a second bathroom, installing a new upstairs laundry room, the repair and replacement of overhead light fixtures in two other rooms, and the replacement of rotted deck planks in my family home. When unexpected scenarios came up (as may happen with multi-faceted jobs, especially with an older home), Renovec did not create change orders but rather came up with innovative, responsible, and aesthetically pleasing solutions that the company implemented at cost. The PM always picked up the phone when I called or called me back within a few minutes in response to any question or concern I had, and the owner was also responsive, even though it was clear that the company was not making top dollar on this job. They were just honorable in addition to being skilled. From my experience, Renovec is a company that takes pride in what they do and cares about the people they are doing it for."
886C69CA4881E8D3AE8EEC6195A1938D60EC7571AFC68E319CC83CC674F28A92 F. in January 2026
HomeAdvisor makes it easy to connect with pros near you. You can read reviews, get quotes and book appointments all in one place.
Depending on the type of project, you may find subtle differences in the hiring process. Here’s a look at task-specific advice.
You can use HomeAdvisor to help evaluate a contractor’s qualifications. We put pros through a screening process, and award badges to high-performing contractors. You can find these badges on a pro’s HomeAdvisor profile, and sometimes, his or her website.
Your research doesn’t stop here. Once you’ve found a few prospective companies, make an call to ask a few questions about work history, licensure and more:
In most cases, the responses you get to these three questions will give you a very good idea of the right pro for your project. If you have more than one front-runner, these additional questions can help you narrow it down.
Any good contractor will answer these questions, and most will appreciate dealing with a client that takes such an active interest in finding good service. On the other hand, if a contractor gives you a hard time with these questions, you probably want to find someone else.
Gaithersburg Addition & Remodeling Contractors are rated 4.7 out of 5 based on 74 reviews of 74 pros.
The HomeAdvisor Community Rating is an overall rating based on verified reviews and feedback from our community of homeowners that have been connected with service professionals. See individual business pages for full, detailed reviews.
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