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Top-Rated Addition to existing structure builders in Renton - Updated Nov 2026

Avatar for Puget Sound Builders & Renovation
Puget Sound Builders & Renovation
5.0(
1,372
)
Addition to Existing Structure - Build

Serving Renton, WA and surrounding areas

Approved

In business since 2006

Credit card accepted

Customers say: True professional

"Puget Sound Builders & Renovation did a fantastic job from start to finish. The team was professional, hardworking, and paid close attention to every detail. I?m very happy with the final results and truly appreciate their dedication. Highly recommended!"
Bathroom Renovation
Basement Remodel
Bathroom Renovation
Basement Remodel
Kitchen Remodeling

+23

10 neighbors recently requested a quote
Avatar for Topaz Remodeling, Inc.
Topaz Remodeling, Inc.
5.0(
141
)
Addition to Existing Structure - Build

Serving Renton, 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

+63

Response time10 hrs
Response rate100%
290 neighbors recently requested a quote
Near Me Roofing Company
5.0(
74
)
Addition to Existing Structure - Build

Serving Renton, WA and surrounding areas

Approved

In business since 2012

Free estimates

Credit card accepted

"Their roof repair services go beyond any industry standards. Having to deal with many contractors, we as property management company have found peace of mind when it comes to such services. Ari and Elijah is exceptional and efficient. They have helped several times to fix many of roof leaks in the building we manage. We always thank their hard work."
Response time4 days
Recommended by80%of homeowners
Avatar for Orion Home Renovations
Orion Home Renovations
4.9(
31
)
Addition to Existing Structure - Build

Serving Renton, WA and surrounding areas

Approved

In business since 2012

Free estimates

Emergency services offered

"Sandra and Cesar are excellent to work for and they did a great job remodeling are basement. They converted a garage into two bedrooms, put a new kitchen and bathroom in at a good price and quality. They stick to what they say they're going to do and they are honest. I also like that they have relationships with solid subcontractors and can get some design work done too. I highly recommend them for any of your projects and I will be using them again for our upstairs remodel."
Living Room
Living Room 2
Hallway
Kitchen Counter
Bathroom Renovations

+18

Response time2 days
Response rate91%
2 neighbors recently requested a quote
Avatar for Prorab Construction & Remodeling
Prorab Construction & Remodeling
5.0(
25
)
Addition to Existing Structure - Build

Serving Renton, WA and surrounding areas

Approved

In business since 2018

Free estimates

Emergency services offered

"We hired ProRab Construction & Remodeling to paint several rooms, and everything turned out clean and even. They showed up on time every day and finished faster than expected. Really solid work. Recommend!"
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%
4 neighbors recently requested a quote
Avatar for Northwest Builders & Renovation, Inc.
Northwest Builders & Renovation, Inc.
4.5(
82
)
Addition to Existing Structure - Build

Serving Renton, WA and surrounding areas

Approved

In business since 2015

Free estimates

Emergency services offered

"recently hired Northwest Builders & Renovation to build my garage, and I couldn?t be happier with the results. From start to finish, their team was professional, responsive, and detail-oriented. The communication was clear every step of the way, and they delivered exactly what they promised ? on time and within budget. The quality of the framing, concrete, and finish work exceeded my expectations. They took care of everything efficiently, handled permits smoothly, and left the site clean every day. It?s rare to find contractors this reliable and dedicated to doing the job right. I highly recommend Northwest Builders & Renovation to anyone looking for skilled, honest professionals who truly care about their work."
House Remodel, 2025
House Remodel, 2025
House Remodel, 2025
House Remodel, 2025
House Remodel, 2025

+32

Response time3 hrs
Response rate99%
16 neighbors recently requested a quote
Avatar for Rosell Home, LLC
Rosell Home, LLC
4.6(
35
)
Addition to Existing Structure - Build

Serving Renton, WA and surrounding areas

Approved

In business since 2004

Free estimates

Credit card accepted

"Rosell Homes did a spectacular remodel of our home and new garage/office. Not only did they come in on time and on budget, but they worked directly with the architect and city planners to keep the project moving without lag. I highly recommend them to absolutely anyone. They were a pleasure to work with."
Response time3 days
19 neighbors recently requested a quote
Recommended by100%of homeowners
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FAQs for addition to existing structure building service projects in Renton, 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 Renton, 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.