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Addition Contractors in Washington, DC

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  2. Within seconds, get matched with top-rated local pros.
  3. Compare quotes and choose the best pro for the job.

Service Pros

    Top Remodeling, LLC Logo
    Rockville, MD·

    "I can not recommend Top Remodeling enough for basement remodeling. The team dedication to quality is unmatched. Thanks, Dan, for making our basement a new favorite space!"

    Cesar C. in October 2024

    TB
    Brentwood, MD·

    Additions, Custom Designs, Bathrooms & Kitchens , and 6 more

    "I had a portion of my deck that seemed rotted and needed to be replaced, so hired them to come and fix that part, but it was pretty obvious that all of the boards were in bad shape and it was much more cost-effective to just redo the whole thing. So they were able to quickly adjust the project, get the needed materials, replace all the boards, as well as strengthen the railing, and paint and stain it, and now I have a very comfortable deck to enjoy!"

    Dave C. in August 2024

    RA
    Washington, DC·

    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

    Wright Construction Logo
    Washington, DC·

    Remodels, Drywall, Roofing , and 3 more

    "Willie is a great Communication, Very professional, and does quality work they had my hardwood floors looking like new floors. I will be referring them to my family and friends."

    Kieth L. in October 2024

    WG

    In business since 2012

    About us: "Established in 2012, We proudly offers premium construction services to residential, commercial, and governmental clients across DC, VA, MD, NC, and FL. We're in pursuit of setting the benchmark for excellence in construction, underpinned by our unwavering commitment to cutting-edge technology and valued human resources. The industry's challenge of securing reliable and top-tier construction managers and contractors is real, given the increasing demand and the notable dearth of such professionals. This often results in projects missing their mark on timeliness, budget, and scope. We have harnessed technology and our human capital to bridge this gap and deliver superior results."

    DL

    "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

    ACS Construction Logo
    Columbia, MD·

    Additions, Remodeling, Renovations and Decks, Pre-Construction Planning, Permit Acquisition , and 7 more

    "I hired German to renovate our basement (utility room, laundry room, storage...), including a complete overhaul of plumbing and wiring. I was extremely pleased with the quality of work, the organization of various activities, the price asked and the follow-up. By employing skilled and efficient workers licensed for plumbing (water and gas), electrical and carpentry/drywall the coordination of the various trades was limited to the strict minimum. I would not hesitate to recommend German for similar renovation/extension projects."

    Alain L. in October 2023

    PS

    "Professional. Punctual. Clean. Communication. Consult. This is a recipe for a great product and satisfied customer."

    Sydney R. in September 2024

Showing 1-8 of 8 results

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

Frequently asked questions

  • It’s important that you verify their license is still in good standing. Also keep in mind that certain states or provinces don’t require licensing if the job is under a certain dollar amount.
  • You can find a list of your state’s licensing requirements on the HomeAdvisor website. Before you get to work with the pro, make sure their qualifications are current and acceptable to you.
  • It is always a good idea to get a copy of the pro’s insurance certificate for future records, and in case anything happens. This is a good way to feel more secure in your home project, and to weed out potential scammers.

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:

  • Have you completed a job like this before?
  • Do you have a list of references I can contact?
  • When are you able to start the job?

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. 

  • How many years of experience do you have?
  • What’s your permanent business address?
  • Are you licensed to work in my area?
  • When did you earn your business license?
  • How do you handle warranty service complaints?
  • Do you have worker’s compensation, property damage and personal liability insurance?

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.  

Related Projects in Washington, DC

HomeAdvisor Community Rating

Overall Rating:

Washington Addition & Remodeling Contractors are rated 4.9 out of 5 based on 68 reviews of 68 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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      Recent Job Requests for Addition & Remodeling Contractors in Washington, DC

      • Project Location: Washington, DC
        Date: 02/04/24
        Type of Addition: Ground level addition
        Project Description: Design and build
        Comment: Customer did not provide additional comments. Please contact the customer to discuss the details of this project.
      • Project Location: Washington, DC
        Date: 02/03/24
        Project Description: Design and build
        Type of Addition: Convert or finish existing space
        What types of rooms/spaces are you interested in adding to your home?: Other
        Comment: Customer did not provide additional comments. Please contact the customer to discuss the details of this project.
      • Project Location: Washington, DC
        Date: 02/03/24
        Type of Addition: Ground level addition
        Project Description: Build - use existing architectural drawings
        What types of rooms/spaces are you interested in adding to your home?: Bathroom(s)
        Comment: Install half bath first level currently a cliset
      • Project Location: Washington, DC
        Date: 01/26/24
        Type of Addition: Convert or finish existing space
        Project Description: Design and build
        What types of rooms/spaces are you interested in adding to your home?: Bathroom(s)
        Comment: Customer did not provide additional comments. Please contact the customer to discuss the details of this project.
      • Project Location: Washington, DC
        Date: 01/26/24
        Desired Completion Date: More than 2 months
        Request Stage: Planning & Budgeting
        Project Description: Design and build
        Comment: Customer did not provide additional comments. Please contact the customer to discuss the details of this project.
      • Project Location: Washington, DC
        Date: 01/25/24
        Type of Addition: Convert or finish existing space
        Project Description: Design and build
        What types of rooms/spaces are you interested in adding to your home?: Bathroom(s)
        What types of rooms/spaces are you interested in adding to your home?: Bedroom(s)
        Comment: Frame a wall to convert a living room on 1st floor into a bedroom and also converting a half bath room on the 1st floor into a full bath with shower
      • Project Location: Washington, DC
        Date: 01/24/24
        Type of Addition: Ground level addition
        Project Description: Design and build
        What types of rooms/spaces are you interested in adding to your home?: Bathroom(s)
        Comment: Need to add a bathroom in a bedroom.
      • Project Location: Washington, DC
        Date: 01/24/24
        Type of Addition: Second story addition
        Project Description: Build - use existing architectural drawings
        What types of rooms/spaces are you interested in adding to your home?: Other
        Comment: Customer did not provide additional comments. Please contact the customer to discuss the details of this project.
      • Project Location: Washington, DC
        Date: 01/19/24
        Project Description: Design and build
        Type of Addition: Convert or finish existing space
        What types of rooms/spaces are you interested in adding to your home?: Bathroom(s)
        Comment: Customer did not provide additional comments. Please contact the customer to discuss the details of this project.
      • Project Location: Washington, DC
        Date: 01/17/24
        Type of Addition: Detached addition
        Project Description: Build - use existing architectural drawings
        What types of rooms/spaces are you interested in adding to your home?: Kitchen
        What types of rooms/spaces are you interested in adding to your home?: Living/family room
        Comment: Customer did not provide additional comments. Please contact the customer to discuss the details of this project.
      • Project Location: Washington, DC
        Date: 01/16/24
        Type of Addition: Second story addition
        What types of rooms/spaces are you interested in adding to your home?: Bedroom(s)
        Project Description: Design and build
        Comment: I would like to get an estimate for build a bedrooms in a second floor.
      • Project Location: Washington, DC
        Date: 01/14/24
        Type of Addition: Ground level addition
        Project Description: Design and build
        Comment: Customer did not provide additional comments. Please contact the customer to discuss the details of this project.

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