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Find Addition to existing structure builders in Seattle

Avatar for Topline Builders and Renovation, LLC
Topline Builders and Renovation, LLC
5.0(
115
)
Addition to Existing Structure - Build

Serving Seattle, WA and surrounding areas

Approved

In business since 2020

Free estimates

Credit card accepted

"We hired Topline Builders and Renovations for a full home addition, adding nearly 600 square feet to our main floor. From the very first consultation, Ben walked us through the architectural plans, structural requirements, and permitting process with the city. We were nervous about taking on such a large construction project, but they made it feel organized and manageable. The framing crew worked efficiently, inspections passed without delays, and the final finishes blended seamlessly with the existing structure. You honestly can?t tell where the old house ends and the addition begins. Communication was consistent throughout the entire process. This wasn?t just a contractor showing up ? this felt like a professional construction team managing every detail properly."
Topline Builders
Bathroom Remodel Renton
4 neighbors recently requested a quote
Avatar for Johnson and Sons Construction
Johnson and Sons Construction
4.9(
112
)
Addition to Existing Structure - Build

Serving Seattle, WA and surrounding areas

Approved

Super Service Award Winner

In business since 2008

Free estimates

Warranties offered

"I called Johnson & Sons for a quote on our project to build a new attached garage. Vic answered the phone himself, and while he convinced me that we are too far outside of their normal area of business to be practical, he did spend over 30 minutes answering my questions, and offering some very generous advice and references on how to approach my project. I have to say, I did not expect someone to be as forthright and open with their knowledge and ideas, especially to someone they would not be doing business with. But after reading his other reviews, I can see that this is exactly the kind of expertise and service once can depend on receiving from this highly rated company. Thank you Vic!"
Response time2 days
Response rate100%
3 neighbors recently requested a quote
Avatar for JJ Construction & Home Solutions, LLC
JJ Construction & Home Solutions, LLC
4.7(
45
)
Addition to Existing Structure - Build

Serving Seattle, WA and surrounding areas

Approved

In business since 2014

Free estimates

Warranties offered

"J J Construction owner Khoa Ha completely replaced my upper and lower decks with composite. He solved many problems we were facing with the decks and designed a system to deflect rain water away from the house. The upper deck was 48'x12' and the lower deck 14'x21', also replaced existing stairs, added bench seating. and lights. In addition he also repaired/reflashed metal roof on the lower back of the house and address foundation concerns. His team were great to work with, hard working, professional and courteous. We could not be happier with the results of this 4 week project. I highly recommend J J Construction for any project. We will be using him on future projects as well such as house painting, and some interior remodeling in the coming year."
Ernie
Ernie
Ernie
Ernie
Ernie

+144

Response time5 days
Recommended by94%of homeowners
Avatar for Johnson Custom Builders
Johnson Custom Builders
4.9(
102
)
Addition to Existing Structure - Build

Serving Seattle, WA and surrounding areas

Approved

Super Service Award Winner

In business since 2011

Free estimates

Warranties offered

"Scheduled a meeting with Ryan very shortly after my inquiry. He arrived promptly and we discussed various options for a remodel/addition. The ideas he threw out were very intriguing and I liked his vision. Ultimately did not decide to do this addition but still appreciated meeting Ryan. And he wore a mask!"
Remodeling - General Project
Remodeling - Kitchen & Bathroom Project
Remodeling - General Project
Remodeling - Kitchen & Bathroom Project
Remodeling - Kitchen & Bathroom Project

+75

Response time11 hrs
4 neighbors recently requested a quote
Recommended by92%of homeowners
Avatar for Topaz Remodeling, Inc.
Topaz Remodeling, Inc.
5.0(
137
)
Addition to Existing Structure - Build

Serving Seattle, WA and surrounding areas

Approved

Super Service Award Winner

In business since 2014

Free estimates

Emergency services offered

"We hired Topaz Remodeling and Yoni for a home addition to create a bigger living room and extra bedroom. The project involved framing, roofing, and major structural work - and Yoni handled it like a pro. He stayed on top of scheduling, inspections, und kept us updated every step of the way. The new space blends seamlessly with our original house. We are beyond happy with the results!"
Kitchen Remodel
Bathroom Remodel
Kitchen Remodel
Bathroom Remodel
Kitchen Remodel

+53

Response time10 hrs
Response rate100%
256 neighbors recently requested a quote
Avatar for Bello Home Solutions LLC
Bello Home Solutions LLC
5.0(
19
)
Addition to Existing Structure - Build

Serving Seattle, WA and surrounding areas

Approved

In business since 2022

Free estimates

Warranties offered

"We had a leak above our shower and, after taking out the affected ceiling sheet rock, Yariel determined it was from a leaking plumbing vent pipe. While fixing the leak Yariel also discovered that the roof sheathing was wet. After investigating he found that ventilation fan in the bathroom was exhausting straight into the attic. We gave him the green light to put a vent through our gable. So not only was our current issue resolved, but our future hidden problem was also taken care of."
General Remodeling Project
Kitchen and Bath Remodeling Project
Kitchen and Bath Remodeling Project
Additional Photos
Additional Photos

+19

Response time9 hrs
1 neighbors recently requested a quote
Recommended by84%of homeowners
Avatar for Classic Remodeling NW Inc
Classic Remodeling NW Inc
4.5(
45
)
Addition to Existing Structure - Build

Serving Seattle, WA and surrounding areas

Approved

In business since 2009

Free estimates

Emergency services offered

"We were really impressed with Classic Remodeling. They did full updates on our bathroom and kitchen and we’re thrilled with the results. Their main contractor Russell is super responsive and was respectful of our budget - we never felt like they were trying to up-sell us. Both projects finished on schedule and look fantastic. We would recommend and use them again."
Granite countertop with polished finish
Walk-in shower big enough to escape in
Long view shot of kitchen to back door
Kitchen Storage and Refrigerator
Long view shot of kitchen from back door

+20

Response rate100%
4 neighbors recently requested a quote
Recommended by88%of homeowners
Near Me Roofing Company
5.0(
74
)
Addition to Existing Structure - Build

Serving Seattle, WA and surrounding areas

Approved

In business since 2012

Free estimates

Credit card accepted

"From the initial estimate to final payment, we had a great experience with My Near Me Roofing Company. Ari and Elijah runs an awesome team. The crew that replaced the roof was extremely professional and did an amazing job. very attentive and ensured we were informed along every step. I would highly recommend using this company."
Response time4 days
Recommended by80%of homeowners
Avatar for Prorab Construction & Remodeling
Prorab Construction & Remodeling
5.0(
24
)
Addition to Existing Structure - Build

Serving Seattle, WA and surrounding areas

Approved

In business since 2018

Free estimates

Emergency services offered

"Prorab Construction was great! We had 8 doors with frames replaced. They had it done in 2 days after we found out that the frames were 1" too wide and they had to shave each door. All workers were polite and respectful. They did a great job!! Will hire them for anything we need done at the house."
New roof and fixed deck
New roof and fixed deck
New roof and fixed deck
New roof and fixed deck
New roof and fixed deck

+222

Response time7 hrs
Response rate100%
18 neighbors recently requested a quote
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FAQs for addition to existing structure building service projects in Seattle, WA

You can typically raise your roof by four to eight feet, depending on your home's structure and roof design. The exact amount depends on factors like roof slope and framing support. Raising the roof creates additional interior space, enhances natural light, and increases your home's value. Consult a professional to determine the feasible height increase for your home.

Yes, you need a building permit to raise your roof. Obtaining a building permit ensures your project complies with local building codes and safety regulations. A professional contractor can assist with the permit and inspection process and ensure all legal and safety requirements are met. Your contractor will be familiar with building codes in your area, which can differ between cities or states.

While it's possible to raise a flat roof, it requires extensive structural modifications. Flat roofs lack the attic space and support structures of pitched roofs, so raising them involves significant engineering to ensure safety and durability. This process can be complex and costly, so professional assessment is essential before undertaking a project of this magnitude.

The Seattle, WA homeowners’ guide to addition to existing structure building services

From average costs to expert advice, get all the answers you need to get your job done.