Top-rated addition to existing structure builders.

Get matched with top addition to existing structure builders in Redmond, WA

Enter your zip and get matched with up to 3 pros

Matching on HomeAdvisor

Share some details icon
Share some details about your home project.
Match with local pros icon
Within moments, match with highly-rated local pros.
Compare quotes icon
Compare quotes and choose the best pro for the job.

Find Addition to existing structure builders in Redmond

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

Serving Redmond, 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
3 neighbors recently requested a quote
Avatar for Puget Sound Builders & Renovation
Puget Sound Builders & Renovation
5.0(
1,372
)
Addition to Existing Structure - Build

Serving Redmond, WA and surrounding areas

Approved

In business since 2006

Credit card accepted

Customers say: True professional

"Puget Sound Builders & Renovation is dedicated to providing professional remodeling and renovation services with attention to quality, communication, and craftsmanship. Whether it's a kitchen, bathroom, or full-home renovation, the team focuses on delivering reliable service and helping homeowners bring their renovation ideas to life."
Bathroom Renovation
Basement Remodel
Bathroom Renovation
Basement Remodel
Kitchen Remodeling

+23

13 neighbors recently requested a quote
Avatar for Johnson and Sons Construction
Johnson and Sons Construction
4.9(
112
)
Addition to Existing Structure - Build

Serving Redmond, 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 Johnson Custom Builders
Johnson Custom Builders
4.9(
102
)
Addition to Existing Structure - Build

Serving Redmond, WA and surrounding areas

Approved

Super Service Award Winner

In business since 2011

Free estimates

Warranties offered

"I hired Ryan (and his architect partner Jay) to design a home in Kirkland -- a teardown and 5000 sq ft new home build on a steep slope on the water. I contracted the design and construction separately. When the permits were issued and it was time to select a builder, Ryan was busy with another large project and was unavailable for my construction. Relative to design, Ryan has an excellent eye for both form and function -- better IMO than most builders. He is very creative and as a builder, bridges the gaps between aesthetics, function and "build ability" extremely well. He helped a lot with many stunning design choices including a fantastic 20-ft wide sliding door to the patio."
Remodeling - General Project
Remodeling - Kitchen & Bathroom Project
Remodeling - General Project
Remodeling - Kitchen & Bathroom Project
Remodeling - Kitchen & Bathroom Project

+75

Response time11 hrs
3 neighbors recently requested a quote
Recommended by92%of homeowners
Avatar for Topaz Remodeling, Inc.
Topaz Remodeling, Inc.
5.0(
139
)
Addition to Existing Structure - Build

Serving Redmond, 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%
277 neighbors recently requested a quote
Avatar for Lopez Bros Construction
Lopez Bros Construction
5.0(
10
)
Addition to Existing Structure - Build

Serving Redmond, WA and surrounding areas

Approved

In business since 2013

Free estimates

Emergency services offered

"Highly recommend Lopez Bros Construction for any remodeling and major home repairs. We completed major home repair and remodeling, including bathroom shower repair and remodeling, Kitchen and Living Room ceiling/internal skylight enhancements, Interior and Deck Painting, and Basement Remodeling. Ray has been always going above and beyond in delivering the results. He will make sure the details and end results are perfect. His team's integrity is unquestionable, responsiveness and quality are top notch. Given the multiple projects he's dealing with, his crew still manage to get the repairs and remodeling done on time, as promised. I would hire Lopez Bros Construction again for my next project."
Additional Photos
Additional Photos
Additional Photos
Additional Photos
Additional Photos

+11

Response time2 days
Response rate100%
Recommended by100%of homeowners
Avatar for Treiber Building, LLC
Treiber Building, LLC
4.9(
12
)
Addition to Existing Structure - Build

Serving Redmond, WA and surrounding areas

Approved

In business since 2016

Free estimates

Offers commercial services

"I interviewed several contractors for my addition and addition and I chose Andrew because I felt like he was straightforward with the project and the risks that come with a remodel of an 80 year old house along with the primary suite addition. Through the design phase, we never felt pressured to make decisions, but were kept informed of the timing of the project and when we needed to make decisions in order to schedule the project in a way that minimized the impact to our family. Andrew walked us through each item in the contract and worked with us to make changes to fit our budget and kept us informed on what we could expect for changes for a project like ours. Once we were out on contract, Andrew helped push permits through county and kept us informed on what we could expect for duration and timing of the project. Once the work began, Andrew and his right hand man Rod worked efficiently and coordinated the project beautifully to minimize the amount of time that we were displaced from our home. Thoughtful suggestions were made to deal with the numerous issues that come with renovating an 80 year old house and Andrew supported my questions on cost impact and the criticality of each change to keep me informed so that we could make decisions that we felt comfortable with. Andrew and his team of subcontractors were all very friendly and respectful of our family, never making myself, my wife, or 3 kids feel unsafe at any time. Even with the changes to the scope of work, Andrew and his team made good on the timeline of the project, completing everything in 3-4 months as promised when we started. The layout and design of the remodel and addition have surpassed our expectations, everything that we did has really made our home both more beautiful and more functional. I would highly recommend Treiber Building and have done so to several family members and colleagues at work. The experience was as positive as I couldâ ve hoped and the results are outstanding."
Kitchen
Living Room
Kitchen
Living Room
Deck Progress Pic

+1

Response time2 days
5 neighbors recently requested a quote
Recommended by87%of homeowners
Avatar for Classic Remodeling NW Inc
Classic Remodeling NW Inc
4.5(
45
)
Addition to Existing Structure - Build

Serving Redmond, WA and surrounding areas

Approved

In business since 2009

Free estimates

Emergency services offered

"I am a repeat customer, so I knew the carpenter, Joe, coming in. I started by using their design contractor. I gave her the colors and ideas (beach theme, ceramic wood-look floor tiles), and she pulled the rest together. Invaluable because I can't trust my own taste. They removed a square shower in the corner and a set of shelves next to it, and glassed in that end of the room for a full shower. We put tile down along the whole room, with a recessed shower pan, and a linear drain against the wall. Joe built-in medicine cabinets, and trim all around the room, per my design pictures. The subs included a glass door guy, the plumber, the tiler, painter, and the countertop slab tiler. We also had some work done in our hallway. They removed the single boob light from the middle, and installed two recessed lights on either end, along with putting two switch boxes on either end of the hallway. Joe built a floor to ceiling cabinet in a 13” dead space at the end of the hallway, which included a laundry hamper on tracks, cubbies, and shelves. And then on a whim, I asked to have our old hallway linen cupboard doors replaced to match the new ones. We had two leaks during and after, but one reason I would use them again, is how they handled both times. One was a leak from the plug on the toilet supply. We found it on a Saturday morning, and I ended up waking up our carpenter with my text. He came out and figured it out and fixed it by 1. The other one was after everything was done and cleaned up, and we had paid for everything. The basement bathroom ceiling, fan, and wall below the master was wet one day, and we realized a joint in the pipe from the master toilet to the stack was slowly dripping between the two rooms. I texted Joe again, and he referred me to our GC, who came out with a plumber and fixed it. They had to make a hole in the downstairs drywall, so he has been coming back regularly to put three layers of mud on the new drywall. I was so sure that they would regretfully find that it wasn't their fault and we would have to deal with the cost and bother of finding a plumber and carpenter. Start to finish, it took about four months, but three weeks of that was the initial tile order, and another three for an incorrect tile order."
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%
3 neighbors recently requested a quote
Recommended by88%of homeowners
...
Showing 1-10 of 700
FAQs for addition to existing structure building service projects in Redmond, 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 Redmond, 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.