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
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Service Pros
PG
Lynnwood, WA·
x
"Look in pictures for my review"
F88585294136A4F3A087AEBC947A6C7F176B9F5CB663617117059A61664EF8D6 5. in August 2025
GA
Gold Bar, WA·
General Construction
"I have been using their services for 10 years, and I greatly appreciate their integrity, trust, dedication, and the quality of their work. I would highly recommend them!"
Glenn B. in January 2021
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
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
KA
In business since 2017
Bonney Lake, WA·
Kitchen and Bath Remodels, Whole Home Renovations
About us: "With over 15 years of experence K A M Construction, Inc. takes great pride in our experience, expertise, quality and customer service that we provide to meet your needs. It is our mission to provide excellent workmanship and complete customer satisfaction from start to completion of a project. In order to understand the needs and expectations of our customers, we take great care to work and communicate with every customer in a professional manner. Our reputation is based on service, safety and quality, regardless of how large or small the job."
RH
Redmond, WA·
Kitchen and Bathroom Remodeling, Home Remodeling, Custom Home Renovations
"would definitely have them work on our home flooring again"
Syed Toaha A. in December 2012
RENTON, WA·
Remodeling
"We hired A to Z home remodeling replace our 60 year old bathtub with a shower. Shay was our Manager, explained the process thoroughly and answered all our questions. Eric extremely knowledgeable and up to the task of dealing with our old home and all its quirks. I would recommend A to Z for anyone looking for a professional remodel that will last for many years."
kate K. in December 2024
Bellevue, WA·
Roofing, Remodels, Siding , and 5 more
"I had my deck and roof done, Great experience working with Revive Remodels!! I was worried because in the past I had bad experiences with other companies and I will say that moving forward I will be using Revive Remodels on every project! Great staff and great work that was completed on time!"
Dustin B. in January 2023
NB
In business since 2023
Seattle, WA·
Additions, Decks, Remodeling
About us: "NIRVANA BUILDERS LLC is committed to excellence in every aspect of our business. We uphold a standard of integrity bound by fairness, honesty, and personal responsibility. Our distinction is the quality of service we bring to our customers. Accurate knowledge of our trade combined with ability is what makes us true professionals"
Showing 1-9 of 17 results
Costs for related projects in Renton, WA
- Build an Addition$32,000 - $54,207
- Demo an Interior$600 - $4,081
- Perform Home Renovations and Repairs$6,000 - $27,000
- Remodel or Renovate a House$18,333 - $56,166
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 5.0 out of 5 based on 242 reviews of 242 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: 02/03/24Type of Addition: Second story additionProject Description: Design and buildWhat 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: 01/26/24Type of Addition: Ground level additionProject Description: Design and buildComment: Customer did not provide additional comments. Please contact the customer to discuss the details of this project.Project Location: Renton, WA Date: 01/23/24Type of Addition: Second story additionProject Description: Design and buildWhat 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 garageProject Location: Renton, WA Date: 01/15/24Type of Addition: Ground level additionProject Description: Design and buildWhat 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: 01/14/24Reason for Cable: 1Type of Addition: Detached additionProject Description: Build - use existing architectural drawingsWhat types of rooms/spaces are you interested in adding to your home?: Living/family roomComment: Customer did not provide additional comments. Please contact the customer to discuss the details of this project.Project Location: Renton, WA Date: 01/09/24Type of Addition: Ground level additionProject Description: Build - use existing architectural drawingsWhat 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?: KitchenWhat types of rooms/spaces are you interested in adding to your home?: Living/family roomWhat types of rooms/spaces are you interested in adding to your home?: Bedroom(s)Comment: Want to build townhouse.
