Get matched with top addition to existing structure builders in Altadena, CA

"After several long years of designing and permitting our home remodel during the pandemic, we were searching for a good contractor to build out our remodel and second story addition. Avi and David were wonderful; very thorough in explaining the process, answering all of our questions, and settling on a price that was reasonable and within our budget. During the building process, David was very responsive, available, and receptive to changes and last minute decisions made along the way. The project took longer than anticipated and there were some unexpected setbacks, but David and Avi worked quickly to fix issues and keep the project moving forward. At the end of the project they were very responsible about making sure we were satisfied with every last detail before completing the project. Our new home is beautiful and we're very happy with how it turned out, thanks to David and all the crews at So Cal Builders."

"The KN Remodeling team did an excellent job at our home completely remodeling 3 bathrooms, painting our entire home and rebuilding a huge planter outside. We trusted them in our home while we are out of town almost the entire time. We hired them back to do additional work in our home that they did quickly and expertly. The team was professional, very friendly, worked quickly, quietly, cleanly, and I would highly recommend them."

"We’ve been renovating for a few years now and have hired various contractors through phases of our home. Our recent particular project was a difficult one, I knew it would be costly, we would find more issues my house is 100 years old and on top of that the ADU was not permitted), and it was important to do it once and do it correctly. I had many quotes to repair and waterproof our ADU and I am so glad we chose Creative Home Remodeling to finish our project. Ben led the project so I could focus on my day job, kept me informed daily, reviewed all changes and findings as we went, and kept things on schedule. We decided on solutions together and it’s been a few months now with peace of mind that it was done right. I also liked that they are familiar with small and large projects, mine wasn’t large but was challenging with essentially a re-build of one side of the ADU, the concrete behind it, putting in french doors and stucco/paint. We would definitely recommend and use again."

"Axe Construction is the real deal. From start to finish, they handled everything—helping us find the right property, managing the full demo, collaborating on the design of a brand-new home, and executing the entire build. What’s impressive is that they delivered all of this within a 13-month timeframe, which is almost unheard of for a ground-up custom build. Communication was clear, decisions were practical, and the team stayed solution-oriented the entire time. No endless excuses, no finger-pointing—just progress. They understand design, construction, budgets, and timelines, and they know how to keep a project moving without sacrificing quality. The final result exceeded our expectations. The house is beautifully built, thoughtfully designed, and feels solid in every detail. If you’re looking for a contractor who can truly handle a project end-to-end—and actually deliver—Axe Construction is the team you want. Highly recommend."

"I hired Golan and H&A My Design to build an ADU and they did excellent job and exceed my high expectations. The project went smooth, there were no issues and was finished ahead of schedule. It was a true pleasure to work with Golan and his team and final product is a top notch. Also this company have a one stop shop showroom for all finishes, 5000 square-foot. I highly recommend H&A My Design!"

"The adage “You get what you pay for” rings true with MF Construction. When we were in the market for a general contractor to build our two-bedroom/two-bath ADU in San Marino, we interviewed several general contractors. Mike Maman of MF Construction was one of them. Mike showed us several of his projects as well as his own custom home. We were extremely impressed with the end results. After reviewing several competitive bids, we selected Mike because of his 40+ years of experience in building high-quality homes. During the construction of our ADU, Mike was just a text or phone call away. He kept us informed of upcoming events and visited our job site almost daily, sometimes more than once a day. He was present at all 12 of the City inspections. Every step along the way, we noted the high quality of materials Mike uses from the Ganahl lumber to the thick insulation and roofing paper to the copper pipes and shower hot mop, and mold-resistant drywall. Mike uses materials which meets or exceeds code requirements. Everyone on Mike’s team is extremely skilled in his/her craft, many having worked with him for decades. Mike is old school and does not take any shortcuts. Along with high quality construction and materials, Mike is extremely efficient. Our ADU was completed in four months, as promised. Progress was made every day. From the rough work to the finishes, Mike scheduled his team members just in time which resulted in an extremely efficient and smooth workflow. Mike builds with his heart. His passion is infectious which inspires his team members to do their best work. The results are evident in the finished product. Our neighbors and friends are extremely impressed with the quality and build of our ADU. If you value a well-built home and appreciate attention to detail, you will not be disappointed with Mike Maman. You WILL get what you pay for with MF Construction."

"I came to know about Platinum Home Builders from a friend. We were having our first child and wanted to have a specially prepared room for her. I was very impressed with their approach. I should say that I am very satisfied with their work."

"We hired Trig Builders to tear out our bathtub, shower and shower walls and to build a tub deck with a drop in tub; install marble tiles on the shower floor & walls and vanity backsplash, remove and relocate the old recessed lights and vent fan and install the shower/bath all plumbing fixtures. Like most other people, we also had many other bids before deciding who to hire for that work and at the end of this hard process, we decided to go ahead with Trig Builders. Our decision to hire and work with them was based on their positive online opinions from other clients and the excellent reputation that they have. At first, we worked only with Michelle about the design and the selection of materials of the project. It was a pretty easy and not complicated to work with her. At the end of that process, we were extremely happy with the overall design and the flow of the space. After that stage, Yossi was assigned to our project and he took over with the designs and flow. During the work, we had close to 6 workers that worked daily on the entire project starting with demolition, framing, and construction, paint and finishes installation. By having all this people working at the same time, we felt and noticed that the work is running super-fast and we loved it! Yossi made sure that each stage will be approved by him and this was the main reason why he visited our house on a daily basis (sometimes even more than once a day). The work was completed after 3 weeks from the day that Michelle met with us and we approved the design and the flow. At the end of the work, Yossi and Michelle came over to the final meeting where we inspected all the work and the final project. During that meeting, we informed them about few issues and Yossi was able to take care of them the following day making sure that they all will be resolved and approved by us. This is the greatest service we could think of. Trig Builders did a great work and we do recommend them for any construction work."

"I needed to build an addition and my friend recommended me this company because he worked with them and had great experience with them. I contacted them and we set up a meeting. They gave me estimate, I was satisfied and I hired them. The project went great, no issues, no hidden costs, very honest contractor. I am fully satisfied with result and will strongly recommend this contractor."

"I did not fully know this about me, but I am the client from H***. However, Mr Gino and everyone at imperial remodeling went above and beyond any expectations I could have had. And I am a perfectionist; which does not exist, but no one could have gotten closer than these guys. We did a complete remodel of three bathrooms floors, walls paint etc. I’ve had custom glass installed. And they built out a whole new bathroom for me without destroying the design and functionality of my beautiful mid-century modern home. I am definitely going to work with them again. I hope they work with me( Please read first sentence again). You will not find better quality and affordability in the same place as I did. Thank you imperial remodeling for treating my home as it was your own and for caring about us and exceeding all our expectations. You are the best at home remodel and I am glad we met!"