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Find Addition to existing structure builders in Renton

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

Serving Renton, 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 Topaz Remodeling, Inc.
Topaz Remodeling, Inc.
5.0(
138
)
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

+53

Response time10 hrs
Response rate100%
272 neighbors recently requested a quote
Avatar for Lopez Bros Construction
Lopez Bros Construction
5.0(
10
)
Addition to Existing Structure - Build

Serving Renton, WA and surrounding areas

Approved

In business since 2013

Free estimates

Emergency services offered

"We found that the wall in our laundry closet was soft and damp. After opening the wall a bit we found massive water damage. Ray with Lopez Bros Construction responded quickly to our request for quote, came out and assessed the damage, and gave us an idea of what it would cost. He then pointed out the demo work that was needed and offered to allow us to do what we could of the work to save us money. Once the demo work we could do ourselves was done, Ray and his crew came out to complete it and then identify where the leak was. This had clearly been going on for some time as the entire floor and subfloor was completely rotten. Ray coordinated the plumber to fix the leak, remove the water heater that was in the garage on the other side of the laundry wall as it was pressing through the other side. After allowing several days for everything to dry out, Ray and his crew then began building back the floor and the walls. Work was completed within a week. Everyone was professional and careful to keep the mess to a very minimum. Ray communicated everything he found, his plan to fix, and showing progress throughout the project. He always let us decide how far to go (removing the water heater and repairing the other side of the wall was our decision) and never pressed to do any more than what we were comfortable with. The project was much bigger than expected, but the price of the work wasn't much more than what was originally discussed. SUPER happy with Lopez Bros work!"
Additional Photos
Additional Photos
Additional Photos
Additional Photos
Additional Photos

+11

Response time2 days
Response rate100%
Recommended by100%of homeowners
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, Cesar and team did a fantastic job with our deck. We had an old, cedar deck that needed re-finishing and we decided to replace the handrails of the deck with cable along with creating support on the deck for a submerged hot tub to sit on the deck. Sandra was extremely friendly and responsive from the beginning with pictures and descriptions of what they would do to meet the requirements - we went back and forth quite a bit with my questions but she worked with me through it all. The work was completed in 3 weeks - they accommodated by working on weekends since the weather in Seattle didn't play along and they weren't able to stain on some days as well. Cesar and Luis pay a lot of attention to detail while on the job. They spent a lot of time on ensuring that the support structure was built to be functional and yet, safe. Even after the work was complete, we decided that we didn't like the way a part of the job was completed and they came back out in less than a week from the time that I contacted them to get it fixed to our liking and did the work for free. I highly recommend them!!"
Living Room
Living Room 2
Hallway
Kitchen Counter
Bathroom Renovations

+18

Response time2 days
Response rate91%
3 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

"PRORAB Construction & Remodeling painted our house exterior last summer. The price was reasonable, and the work was done quickly and very neatly. Everything looked professional from start to finish. I would definitely recommend them to anyone looking for quality painting work."
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%
19 neighbors recently requested a quote
Avatar for Iconiq Construction, LLC
Iconiq Construction, LLC
4.9(
31
)
Addition to Existing Structure - Build

Serving Renton, WA and surrounding areas

Approved

Super Service Award Winner

In business since 2023

Free estimates

Warranties offered

"I hired Iconiq Construction to do my kitchen and I?m really happy how it came out. Sean and his guys were great, they told me what?s going on all the time so I never had to wonder. Everything went smooth, no waiting around, no extra money they ask for later. The kitchen looks so good now, better than I thought, and I?m glad I went with them."
kitchen remodel
Kitchen remodel
addition project
bathroom remodel
bathroom remodel

+2

Response time1 day
Response rate94%
6 neighbors recently requested a quote
Avatar for Northwest Builders & Renovation, Inc.
Northwest Builders & Renovation, Inc.
4.6(
80
)
Addition to Existing Structure - Build

Serving Renton, WA and surrounding areas

Approved

In business since 2015

Free estimates

Emergency services offered

"This company was efficient in their work and cleaned up nicely after themselves. I had a complete bathroom remodel after a water leak and they even did outside stair replacement with handrails to my front door. This company went above and beyond on their customer service. The only reason I gave them a 4.5 because I never knew their intended work schedule and was given a 3 day window with them leaving at noon without telling me if they were coming back after lunch. I didn't realize they were letting the tile set and the grout dry. I would have just liked the heads up for that, otherwise their craftmanship was spot on and their tile work was fantastic in the bathroom. Outside they had to do concrete and post work and those are level, Exceptional job well done for both crews."
House Remodel, 2025
House Remodel, 2025
House Remodel, 2025
House Remodel, 2025
House Remodel, 2025

+32

Response time3 hrs
Response rate99%
46 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

"In addition to my other 5 star ratings I would like to add a five star appreciation for the entire teams respect for the home owners comfort and wishes as well as pride in their work."
Response time3 days
9 neighbors recently requested a quote
Recommended by100%of homeowners
Excel General Contractor, LLC
4.5(
90
)
Addition to Existing Structure - Build

Serving Renton, WA and surrounding areas

Approved

In business since 1975

Free estimates

Warranties offered

"We are pleased with the quality of work provided by Excel GC. In our second story remodel, we really appreciated the experience and dedication from the foreman, Oscar, and his team. He is very skilled at his trade and runs a professional team. Excel GC has reliable connections to the best subcontractors we have ever worked with. They are friendly, professional and experienced in their trade to handle complex remodels. From building a shed to a major home remodel Excel GC is more than capable of any project and will deliver high-quality work. Additionally, their experience in the industry helped provide direction and guidance when tough decisions had to be made. Communication is clear and upfront with an effort to communicate any future considerations during the project."
Response time2 days
3 neighbors recently requested a quote
Recommended by94%of homeowners
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Showing 1-10 of 602
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.