How much do addition contractors typically cost?
- WASHINGTON, Washington DC Average$81,330
- Typical Range$40,875 - $117,753
- Low End - High End$15,000 - $216,000

Residential Remodel, Commerical Remodel
"The owner came out very late at night on a holiday for our emergency leak and stayed very late to fix it. Would highly recommend"
Kimberly N. in December 2019
"I have used Navid's Construction for several projects at two homes we've owned. The first job required replacing front porch posts on a vintage, 1928 Sears Craftsman Bungalow. We were selling the home and needed to replace a rotting wooden structural porch post having architectural design features that I was adamant about replicating exactly as the original construction. Navid was able to completely reconstruct both posts with their added design features and do that work FLAWLESSLY!! I was incredibly pleased with the final results that he was able to accomplish within one day between him and his crew. This was all done, btw, within one week of closing with our buyer in advance of the sale of the home! A bit harrowing for me, but no problem for Navid! He also tackled reinforcing a joist and taking care of some termite damage. I engaged him again for another home of ours to reinforce a termite damaged joist and repair a 2nd floor drain. Success on all fronts. Total pro; use NAVID!!"
723CE87FB5560C8D2E0CFFAD1B198CB0526FCEF0A27B509C8E23BE14D3E0B506 3. in October 2026
interior decorator services under project only, design build company, staff has over 30 years of experience , and 1 more
"R&A Contractors Group, Inc., is a great company to work with. They are on time, efficient, and upfront with pricing."
Daren D. in November 2022
"Had some water damage and unsure of the cause. Pete Sr and his team came in, diagnosed the problem quickly, and finished in record time. Very pleased."
E2E5FD9BAA544FDF08A97645940DE04E3843A44BFDCCA387D18B00B737A609D0 E. in October 2026
"What I appreciated the most is that the services were always done on time and in a good manner . I spent weeks and got at least 4 appointments canceled with handymen to take care of bathroom issues and work needed to be done at the apartment. Fortunately I got in touch with Krea and finally got the work done. They are my company of reference from now on."
8904C61A98DBED62E64054642DFF2F3227718C6F6D27D5C435535A036CE66408 E. in December 2025

Remodeling
"I recently hired Solid Foundation Construction LLC to replace my carpet with vinyl flooring, and the results are absolutely perfect. I’m a very detail-oriented, high-maintenance client who is rarely fully satisfied — yet this project exceeded all my expectations. The quality of the work is outstanding. The crew worked incredibly hard from morning until evening, moved quickly without sacrificing precision, and delivered flawless results. My floors look stunning, and I truly couldn’t be happier. The owner is also a pleasure to work with — professional, responsive, and genuinely committed to making sure everything is done right. I would recommend Solid Foundation Construction to absolutely anyone looking to improve their home. Do not hesitate to hire them. I already can’t wait to work with them again on my next project!"
9AC35969DCE1E290D04B7BA901D0D77D00A481099C45B1D80CAEA4605F0995D1 0. in December 2025
"This was the third project Munoz Construction completed for us and we couldn’t be happier with the result. This project was mainly focused on renovating our primary bathroom along with exterior painting, deck repairs and additional electrical work. The reasons we keep hiring Munoz Construction is because they do excellent work and Jose Munoz communicates very well throughout the project so there are no misunderstandings and the customer gets exactly what they want. Jose’s teams are always respectful of our home, making sure to cover the floor with drop cloths and cleaning up thoroughly before leaving each day. Jose is meticulous about everything being done properly to achieve the best possible result. We couldn’t recommend Munoz Construction more highly. This is the only general contractor we will use as we trust them implicitly."
E909DBD16BA977BAC9FAC1731C95EF6AA7C09C146CCD53BF5BB008502E163CCC D. in June 2026
"All Renovations was hired to add a carport and a new sunroom addition to our home. They were priced reasonably, worked closely with us on all of the permitting and planning needs, assisted with multiple decisions that normally come up on a large project such as this, and were polite, friendly and very easy to work with. Overall, we are extremely happy with the finished project and we would recommend them to anyone."
C216DFE181B80DDBBBB9BA7202B161F7C231202A3DEB36B3D438C0D9C5721B3B 8. in December 2025
"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. in August 2024
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Washington Addition & Remodeling Contractors are rated 4.6 out of 5 based on 118 reviews of 118 pros.
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