Washington Licensed Contractors
Open Directory of Qualified Licensed Contractors - No fees or personal information are required.

Home Addition Contractors

Serving Washington State

Click on contractors name for complete details & contact information



Arlie's Home Restorations

21665 SE 271st | Maple Valley WA 98038 | 206-898-2711

Additions, Decks, Drywall, Handyman, Painting, Remodeling, Roofing, Siding, Windows

General Contractor - remodeling & home improvement projects from repairs to full renovations

Serving Seattle, Bellevue, Renton, Kent, Maple Valley, Auburn, Federal Way, Gig Harbor, Port Orchard, Bremerton areas

Assisted Custom Construction

26918 204 Avenue SE | Kent WA 98042 | 253-631-6006 | Kitsap County 360-434-2486

Additions, Custom Homes, Remodeling, Kitchens & Baths, Design/ Build

General contractor and remodeler providing builder or builder assisted construction services

Serving Kent, Auburn, Covington, Federal Way, Maple Valley, Tacoma, Puyallup, Seattle, Bellevue, Gig Harbor, Port Orchard, Silverdale WA areas

Gerlach Construction

1046 3rd Avenue S | Edmonds WA 98020 | 425-745-8800

Remodeling, Additions, Kitchen & Baths

General contractor specializing in kitchens, baths, additions, & general remodeling

In Edmonds WA - also serving Lynnwood, Shoreline, Seattle and Kirkland areas

RCW Construction

31060 80th Avenue Ct NW | Gig Harbor WA 98335 | 253-405-8109

Additions, Custom Homes, Kitchens & Baths, Remodeling, Windows & Doors, Decks

General Contractor specializing in building, remodeling, repairing, and restoring homes

Serving Gig Harbor, Tacoma, Port Orchard, Pierce and Kitsap County WA areas

R & S Construction

350 South 312th Street | Federal Way WA 98003 | 253-941-3364

Remodels, Additions, Decks, Kitchens & Baths, Landscaping

Full service general contractor, specializing in renovation, remodeling & new construction

Serving Federal Way, Auburn, Puyallup, and Tacoma areas

Sweatman Young Inc

PO Box 7105 | Bonney Lake WA 98391 | 253-863-3786

Remodeling, Additions, Custom Homes, Decks & Patios, Design/Build, Garages, Kitchen & Bath, Windows & Doors

Full service general contractor, builder, & remodeler including historic renovations

Serving Bonney Lake, Pierce, South King & North Thurston County areas


Choosing a Home Addition Contractor:

Whether it's an attached home addition, a second story home addition, sunroom, detached garage or other house addition, you need to consider effects on the existing structure, your timetable, current local building codes and home owner association restrictions. Having a contractor experienced in additions, remodeling, and new construction will be invaluable in the process of adding on to your home. It's a great idea to get suggestions from various contractors; but when getting estimates make sure you know exactly what work will be done, including materials, labor, and other services such permits and plans. All contractors on this site are licensed and bonded, but should you use another contractor, be sure to verify their Washington State Contractor's License.

Quick Tip: People are often surprised by changes or limitaions of local building codes when they want to expand their home. Be prepared to be flexible or make changes in your home addition plans.



What Customers are Saying:

Wonderful work, great contractor! ~ Woodway WA

Only contractor I would use. Thorough, on time, great subs. Intend to use again. ~ Edmonds WA

Really wonderful workmanship on our kitchen, entry and exterior remodeling. ~ Edmonds WA

Excellent job of coming in on time and on budget. Great follow up, phenomenal work! ~ Seattle WA

Did an excellent job. They truly solved the problems my project had while keeping my budget in mind. ~ Seattle

Made my dreams come true. ~ Mercer Island

Fantastic job on my bathroom remodeling project. ~ Burien, WA

Maintains the standard of the true craftsman. They are real professionals. ~ Kent WA

The new addition turned out better than I anticipated. ~ Federal Way

I would highly recommend. Reliable, easy to work with, very reasonable in cost and flexibility. ~ Federal Way

Knows how to make and do things right. ~ Gig Harbor, WA

My new home is better than I had ever hoped for. Very professional, caring and sensitive. ~ Gig Harbor, WA

High quality work and great customer service. ~ Olympia, WA