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

"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."

"Highly recommend this company to anyone looking for trustworthy and experienced builders. Everything was done with excellence"

"I worked with Johnson Custom Builders to build a home addition from initial consultation to final walk-through. Throughout this process, Ryan was always professional, courteous, and attentive to our needs. He took the time to listen to our ideas and understand our vision, and suggested a design that blends seamlessly with our existing home. Ryan kept us informed every step of the way, providing regular updates on the project timeline, budget, and any issues that arose. His communication skills were excellent, and he was always available to answer our questions and address our concerns. In summary, our experience working with Ryan was outstanding; my wife and I feel like we were well advised throughout the entire process and we made it through lengthy construction work with little stress on our end. Based on our experience, we highly recommend Johnson Custom Builders for your construction needs."

"We are so happy to have worked with Johnson and Sons on our project. After nearly 6 months of planning and bouncing around with an unresponsive contractor, we were struggling to get our project (an 8’ x 20’ addition + master bed and bath remodel) off the ground. Once we connected with Johnson and Sons, Vic quickly spent time getting to know us, understanding our vision, and offering feedback and recommendations. We were able to start work as soon as all of the permits cleared. Throughout the process, Vic and his team were transparent, courteous, and communicative. I especially appreciated Vic’s responsiveness throughout the process. He was proactive in giving updates and provided same day responses to any questions or comments from us. Vic and his team were nothing short of professional and I would recommend them to anyone looking to have bed/bath/remodel work done in the area."

"Built an ADA compliant ramp w platforms over existing stair and entry landing. Fair price, great work, great crew, worked fast without cutting corners. Also translated my less-than precise plans 𠤣. Made good suggestions without pressure. Planning to use them again."

"Yariel and team did a terrific job remodeling my townhome. The job (paint, drywall repair, kitchen remodeling) was TOP QUALITY. Additionally, I truly appreciated the superb communication (scoping the work, fast quote, transparent scheduling and diligent updates). I will definitely be hiring them again for my next projects and highly recommend them to anyone looking for a professional remodeling team."

"They did excellent and thorough job. The quality of work was very impressive. Ray Lopez was easy to work with, very flexible and truly cares about the customer. I'm so lucky to find a company with such integrity, that's honest and hardworking. I will definitely hire them back to do more work and refer them to my family and friends.
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"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."

"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."

"Excellently, we initially explained to Vic what it was we wanted to do and he was very receptive to what we wanted Without trying to “take over” and do what was easiest for him. Vic was also very reassuring that what we wanted to do was doable. My wife and I were amazed at what Vic was able to do with rerouting some heating vents and plumbing to hook up our new appliances. Vic was also very knowledgeable in dealing with electrical contractors saving us from being overcharged and avoiding unnecessary work and products. We are very very happy that we were able to find Vic to remodel our kitchen and are very glad that he agreed to do it. We are very happy with his work and very proud to show our friends and family our new kitchen."