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Addition Contractors in Renton, WA

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Service Pros

    Vasa Construction, LLC Logo

    Painting- Exterior/Interior, Remodels- Bathroom/Kitchen/Basement, Drywall- Repair/Install

    "Had a great experience with Vasa Construction, LLC. Quickly came out, did a thorough inspection and made a very fair quote. Quickly scheduled the job, arrived timely as promised, did a great installation. My new roof and siding looks excellent. I highly recommend this company!"

    Ella L. in November 2023

    Modern Outdoor Builders LLC Logo
    Seattle, WA·

    Patios, Decks, Fences

    "We were in desperate need of a new front porch. Looking at our house from the street, you wouldn't have even wanted to come up the steps and knock on our door for fear of it collapsing. Tanner came out initially and he figured out a way to not only update and fix it, but to keep some of the beams and framing material from the original. This saved my wife and I a lot of money. The project took only three days, and what we ended up with is a beautiful front porch with the added curb appeal that went beyond our expectations. Would I recommend Tanner, Brad and the rest of the crew to anyone; absolutely. These guys are legit."

    Trevor L. in May 2023

    Cruver's Contracting, LLC Logo
    Snohomish, WA·

    Cabinets, Flooring, Painting

    "Amazing service As promised completed on time on budget cleaned all the way throughout project"

    Mariam Z. in July 2022

    UB

    "Fast and professional ."

    Daniel G. in September 2024

    R&R Contractors NW, LLC Logo
    Maple Valley, WA·

    Concrete & Masonry

    "The work was excellent and the final product looks great. The day of the poor it started pouring down rain and yet they worked round it and made it come out well. I highly recommend their work."

    Jeffrey T. in December 2017

    Keystone Remodeling, Inc. Logo
    Bellevue, WA·

    Kitchen Remodel, Bathroom Remodel, Deck , and 2 more

    "I recently had the pleasure of working with Keystone Remodeling on a major full house remodel in Bellevue, and I could not be happier with the results. From the very beginning, their team demonstrated a high level of professionalism, attention to detail, and dedication to quality that exceeded my expectations. The project involved a complete overhaul of my home, including updating the kitchen, bathrooms, living spaces, and exterior. Keystone Remodelings team was incredibly communicative throughout the entire process, keeping me informed of progress and any necessary adjustments. They were always responsive to my concerns and worked diligently to ensure that every detail was executed to perfection. The craftsmanship and quality of work were exceptional. Each aspect of the remodel, from the cabinetry and flooring to the fixtures and finishes, was completed with precision and care. The crew was respectful of my home, always keeping the work area clean and minimizing disruption to my daily life. What impressed me the most was their commitment to sticking to the timeline and budget we initially agreed upon. Despite the challenges that often come with a full house remodel, Keystone Remodeling managed to stay on track, delivering a beautiful and functional living space that truly feels like a new home. I highly recommend Keystone Remodeling to anyone in need of high-quality renovation work. Their professionalism, expertise, and dedication to customer satisfaction make them a top choice for any home improvement project. I am thrilled with my newly remodeled home and grateful for the outstanding job they did."

    James B. in September 2024

    Design Build NW, LLC Logo
    Puyallup, WA·

    "We built a 500 sq ft addition to our small home.  They were meticulous about our project schedule and made sure we got exactly what we wanted.  They also made sure workers did quality work.  Recommended!"

    Sienna H. in October 2020

    Iconiq Construction, LLC Logo
    Seattle, WA·

    Home Repairs, kitchen remodeling, Room Addition , and 2 more

    "Great company, always on time did for me amazing job"

    alex G. in November 2024

    WK
    Fall City, WA·

    Decks, Fencing, Remodels

    "Zach had his son Carter, come to our rescue to replace a section of sub flooring in our guest bathroom. We appreciated Carter coming on such short notice and inspite of inclement weather. Carter did an excellent job and we highly recommend his home repair services."

    Carlo S. in January 2024

Showing 1-9 of 26 results

How much do addition contractors typically cost?

  • Renton, Washington Average
    $54,207
  • Typical Range
    $32,000 - $54,207
  • Low End - High End
    $3,586 - $150,000

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 Renton, WA

HomeAdvisor Community Rating

Overall Rating:

Renton Addition & Remodeling Contractors are rated 4.9 out of 5 based on 112 reviews of 112 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 Renton, WA

    • Project Location: Renton, WA
      Date: 02/03/24
      Type of Addition: Second story addition
      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: Need to add square footage to 1000 sf home. Like to add a bedroom (two if possible), one bathroom. Trying to narrow down what options are and what the cost would be.
    • Project Location: Renton, WA
      Date: 01/26/24
      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: Renton, WA
      Date: 01/23/24
      Type of Addition: Second story addition
      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: Add 1000 square feet plus garage
    • Project Location: Renton, WA
      Date: 01/15/24
      Type of Addition: Ground level addition
      Project Description: Design and build
      What types of rooms/spaces are you interested in adding to your home?: Bedroom(s)
      Comment: A modest size bedroom addition in the back area of our ranch home. The bedroom addition would also entail reconfiguring a laundry room and bathroom to create a private bathroom.
    • Project Location: Renton, WA
      Date: 01/14/24
      Reason for Cable: 1
      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?: Living/family room
      Comment: Customer did not provide additional comments. Please contact the customer to discuss the details of this project.
    • Project Location: Renton, WA
      Date: 01/09/24
      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)
      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
      What types of rooms/spaces are you interested in adding to your home?: Bedroom(s)
      Comment: Want to build townhouse.

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