How much do addition contractors typically cost?
- Portland, Oregon Average$45,761
- Typical Range$19,241 - $69,327
- Low End - High End$4,500 - $100,000
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Service Pros
Vancouver, WA·
Kitchen remodel, Basement conversions, Construction Consultation , and 11 more
"They were great! Finished my project in a timely manner and were upfront about costs so there were no surprises."
Lilith S. in May 2024
Sandy, OR·
Addition to Existing Structure - Build, Major Renovation - Multiple Rooms, Find a Custom Home Builder , and 1 more
"We hired Josh Rutledge after having an awful experience with a different contractor. When we hired Josh, we were apprehensive after our previous experience with the other company. Through the course of our job, Josh completely restored our faith in his profession. He is beyond competent, and he takes great pride in the quality and consistency of his work. He totally blew our minds, and our house looks beautiful! He fixed all of the mistakes that were left by the previous contractor, and when he found mistakes that we didn't even know about he fixed those too! He's an all around nice guy, and pleasant to be around as he's got a very calm and friendly demeanor. We have already recommended Josh to friends and neighbors, and we will definitely use him for future projects! I only hope that we can book him, the quality of his work and his professionalism are surely going to keep him busy with all of the referrals he is going to be getting! We can't say enough about Josh and his work- if you hire him, you will have ZERO regrets!"
B C. in November 2017
Portland, OR·
Builds, Addition, Remodeling , and 5 more
"This is how contracting should be done! I will definitely be recommending Continuum to my friends and family. First, they treated me like a human with a brain. I wish that wasn't so unusual, but we all know it is. They responded to my questions with real answers and provided considered pros and cons so I could make informed decisions and didn't just tell me what they wanted to do. Second, the quality of the work was fantastic. All the lines are crisp. All the surfaces are perfect. I, of course, picked a fancy sink that had an unusual drain situation but the Continuum guys rolled with it and came up with a really cool solution that hides all the plumbing. Third, they are so neat and tidy! No dust tracked through the house, no junk stacked up on my porch. And they were super sweet to my dogs who seemed to always be underfoot. Their prices were in the mid-range of the estimates I got, but I picked Continuum because they bring both the engineering and the art, and if I'm paying for custom, I'd like it to look fantastic and know that it was well done. And they're really nice people. :) All around great experience. Thanks Geoff and Nate!"
Lily C. in December 2024
Beaverton, OR·
Home Improvement, Home Renovation, Siding , and 4 more
"During a very busy time for them due a recent wind storm, they were the first to provide a quote. This helped to get something to my insurance company and get the ball rolling. Other contractors either did not return my calls, phones were turned off, or were a lot further out to even give me a quote. The quote was reasonable and the work was excellent. They even helped me pull out a tree stump that was not part of the estimate. The extra hand was a huge help. They got the job done fast and did a good job of cleaning up. I will hire them again."
Sam L. in May 2017
Beaverton, OR·
Framing, Patio Covers/Decks, Remodeling
"Outstanding work. Called the same day we put in the request. Can out to look at the project same day. Friendly and knows his work. Did the job wonderfully. He is now our go to person."
Michael H. in June 2018
FC
Portland, OR·
Residential & Commercial Water Damage Restoration, Mold Removal & Remediation, All General Remodeling Services , and 2 more
"First Call Restoration did a wonderful and timely job fixing our kitchen ceiling. I would highly recommend this company to anyone looking for a contractor offering these services! Highly impressed by their communication and quality of work. First Call Restoration will always be my first call."
Taylor N. in March 2024
KC
Milwaukie, OR·
Kitchen Remodel
"Itâ s hard to find a construction company you can trust not to cut corners, but KOLT is one of those rare few. Even my home inspector was impressed. Great communication, great service, and great people."
Myles B. in February 2024
CC
Portland, OR·
DECKS, REMODELS (WHOLE HOMES SINGLE ROOM), Water Restoration , and 4 more
"Noah and his crew worked fast and built exactly what I asked for! We wanted a covered space on our deck to enclose it for a catio, and they understood my vision perfectly. They even framed out a door with a secure latch so our cats cannot escape. We are DIYing the rest of the catio build, but if I need any more help on this or future projects, I wouldn't hesitate to hire Noah!"
F57CA4B09E0EBC16E50312308A11EDD8D752ED02D54ACE927829FBC8D9C5C770 5. in March 2025
Salem, OR·
Interior and Exterior Residential and Commercial Door Install, Wood or Fiber - Cement Siding Install or Completely Replace, New Window Install for Home and Business , and 1 more
"Paul replaced all of the interior doors in our home. He does quality work and is a pleasure to have in our home."
John S. in November 2017
Showing 1-9 of 29 results
Costs for related projects in Portland, OR
- Build a Barn, Shed or Playhouse$1,350 - $5,000
- Build an Addition$19,241 - $69,327
- Demo an Interior$2,407 - $8,433
- Perform Home Renovations and Repairs$3,536 - $20,850
- Remodel or Renovate a House$17,732 - $82,222
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 Portland, OR
HomeAdvisor Community Rating
Overall Rating:
Portland Addition & Remodeling Contractors are rated 4.8 out of 5 based on 233 reviews of 233 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 Portland, OR
Project Location: Portland, OR Date: 02/04/24Type 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?: KitchenWhat types of rooms/spaces are you interested in adding to your home?: Bedroom(s)Comment: looking for roughly 800 square foot addition , be bathroom upstairs and master bedroom and new kitchen dining area and bathroom down stairs .Project Location: Portland, OR Date: 02/02/24What types of rooms/spaces are you interested in adding to your home?: Bathroom(s)Type of Addition: Second story additionWhat types of rooms/spaces are you interested in adding to your home?: Bedroom(s)Project Description: Design and buildComment: Customer did not provide additional comments. Please contact the customer to discuss the details of this project.Project Location: Portland, OR Date: 01/31/24Type of Addition: Ground level additionWhat types of rooms/spaces are you interested in adding to your home?: Bathroom(s)Project Description: Build - use existing architectural drawingsWhat types of rooms/spaces are you interested in adding to your home?: Bedroom(s)Comment: Customer did not provide additional comments. Please contact the customer to discuss the details of this project.Project Location: Portland, OR Date: 01/30/24Type of Addition: Ground level 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: Customer did not provide additional comments. Please contact the customer to discuss the details of this project.Project Location: Portland, OR Date: 01/29/24Type of Addition: Second story additionWhat types of rooms/spaces are you interested in adding to your home?: Bathroom(s)Project Description: Design and buildWhat types of rooms/spaces are you interested in adding to your home?: Bedroom(s)Comment: Customer did not provide additional comments. Please contact the customer to discuss the details of this project.Project Location: Portland, OR Date: 01/28/24Type of Addition: Ground level additionProject Description: Design and buildWhat types of rooms/spaces are you interested in adding to your home?: Bedroom(s)Project Location: Portland, OR Date: 01/27/24Type of Addition: Detached additionProject Description: Design and buildWhat types of rooms/spaces are you interested in adding to your home?: OtherComment: Looking to have 2 car detached garage built, possibly with apartment above.Project Location: Portland, OR Date: 01/27/24Reason for Cable: 1Type of Addition: Ground level additionProject Description: Design and buildWhat types of rooms/spaces are you interested in adding to your home?: KitchenComment: Customer did not provide additional comments. Please contact the customer to discuss the details of this project.Project Location: Portland, OR Date: 01/25/24Type of Addition: Ground level additionProject Description: Design and buildWhat types of rooms/spaces are you interested in adding to your home?: OtherComment: Tree damage to a 20’x 20’x10’ room extension off detached GarageProject Location: Portland, OR Date: 01/23/24Desired Completion Date: Timing is flexibleRequest Stage: Ready to HireRequires Work on Historical Structure: NoRequest for Commercial Location: NoProject Description: Build - Use existing architectural drawingsRooms Included:: Living/Family roomRooms Included:: BathroomWhat type of guest house/casita addition will this be?: Remodel existing spaceComment: Converting detached garage to bathroom/living areaProject Location: Portland, OR Date: 01/23/24Project Description: Design and buildType of Addition: Ground level additionWhat types of rooms/spaces are you interested in adding to your home?: OtherComment: Customer did not provide additional comments. Please contact the customer to discuss the details of this project.Project Location: Portland, OR Date: 01/22/24Type of Addition: Detached additionProject Description: Build - use existing architectural drawingsWhat types of rooms/spaces are you interested in adding to your home?: OtherComment: Would like to turn a garage into an adu. New roof needed as well as one new wall.Project Location: Portland, OR Date: 01/22/24Type of Addition: Convert or finish existing spaceProject 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?: 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: I have a larger exterior building on my property. Was considering converting it into an aduProject Location: Portland, OR Date: 01/21/24Type of Addition: Convert or finish existing spaceProject Description: Design and buildWhat 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: Portland, OR Date: 01/20/24Type of Addition: Second story 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)What types of rooms/spaces are you interested in adding to your home?: OtherComment: Add a second edition and main floor addition of about 1400 sqft. And reconfiguring existing rooms in existing floor plan To add a master suite.Project Location: Portland, OR Date: 01/19/24Type of Addition: Ground level additionProject Description: Design and buildWhat types of rooms/spaces are you interested in adding to your home?: Bedroom(s)Comment: Would like to build a room off the back of our garage. Would be approx. 16'x22' with a large closet and one window.Project Location: Portland, OR Date: 01/16/24Project Description: Design and buildType of Addition: Ground level additionWhat types of rooms/spaces are you interested in adding to your home?: Bedroom(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?: Bathroom(s)What 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.
