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House Extension Professionals in Los Altos, CA

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Los Altos / 25 mi
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House Extensions
1 – 15 of 11,331 professionals
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11,331 Professionals

Featured Reviews for House Extension Professionals in Los Altos, CA

Mayer's Construction and Remodeling
House Extension Professionals in Los Altos, CA
Average rating: 5 out of 5 stars4 December 2022
“Great experience, high value, very reliable and best crew we ever worked with. Mayer’s construction did a home remodeling for us during the last 6 months. It has been a big home remodel for us that took design and build as well. After months spending finding the right company for us, we have choose to work with Mike & Nathan Mayer from Mayer’s construction. A week after finalizing contract we started working with Su & Luis both company’s architect and engineer. We worked on the new plans we agreed and wanted at first and started to have architect drawings ready, when we got into engineering process, both Mayer’s construction and us didn’t know we were suppose to redone so much of the existing footings and reinforce of additional walls as 20 years ago we did a 2nd story addition that was probably made poorly and unprofessional. They were extremely kind and helpful and kept the price as we agreed on and didn’t changed a thing. The plan process and measurements took about a month or so, and finally we were able to submit the plans to the city of San Jose. After getting the permits done and job card set ( overall 5 months of waiting / SJ is a pretty busy city) we got into work schedule and been ready to move out as the entire home going to be demolished. Mike was very organized both managing and scheduling the team, rough materials arrivals, and to us to be fully briefed with details and what we need and when. The process of work was great and on timeline , city did changed a lot during this time period with their inspection delays but it didn’t interrupt with our schedule or timeline due to great management ahead. We just finished our work and we absolutely in love with our new home! New flooring throughout, new kitchen, new bathrooms, complete open floor plan, new stair case, new rooms reconfigured, new paint, new texture, new windows and sliding doors throughout, all new plumbing and electrical. A brand new and beautiful home we got thanks to Mayer’s construction and the team, Mike, Nathan, Raul, Jose and many more who had a added value and did this work absolute best.”
Oro Coast Builders
House Extension Professionals in Los Altos, CA
Average rating: 5 out of 5 stars2 February 2021
“We have worked with Oro Coast on a variety of renovation projects and each came in on budget and the work was excellent. We really enjoyed working with Ben and his team!”
Kyvos Construction
House Extension Professionals in Los Altos, CA
Average rating: 5 out of 5 stars20 June 2019
“Very good experience He help us out a lot with our kitchen project remodeling and Answering all our questions that we have”
Inspired Builders
House Extension Professionals in Los Altos, CA
Average rating: 5 out of 5 stars13 June 2022
“I worked with Inspired builders on my master bathroom remodeling back in 2021. I met David the project manager at the first meeting and he was very professional and honest. The estimate was very reasonable and fair, so after interviewing several companies I hired David and Inspired builders. We started with design, the designer was very thorough helping me choose my tiles and fixtures and took care of the permitting. David was often in my house running the project along with Antony the foreman and the crew. They were very professional and clean making sure my bed cloths are covered and protected. The project turned out exactly as I imagined and I am enjoying my new bathroom every day. I am planning to remodel my second bath next year and I will definitely call David again. Highly recommended!!”
Primework Construction
House Extension Professionals in Los Altos, CA
Average rating: 5 out of 5 stars18 August 2023
“I couldn't be happier with my master bathroom renovation. The transformation is absolutely stunning, every detail was meticulously crafted. Primework construction team professionalism and Ben’s attention to our preferences made the entire process smooth. My dream bathroom has become a reality, and I’m grateful for the skill and dedication that went into making it happen. Highly recommend Primework for anyone seeking on doing a renovation.”
Mr. & Mrs. Construction & Remodeling
House Extension Professionals in Los Altos, CA
Average rating: 5 out of 5 stars8 October 2020
“After doing extensive research and talking to multiple contractors I settles on Mr & Mrs. Construction for my bathroom renovation project. From initial consultion to design to picking of tiles and materials they were always there to guide us when we needed it. Lital was the project manager for us and she was a pleasure to deal with. Quality of work performed was great and the end result came out amazing. I would definitely recommend Mr & Mrs. Construction to anyone looking to get their bathroom redone in an affordable budget.”
Valley Boutique Builders
House Extension Professionals in Los Altos, CA
Average rating: 5 out of 5 stars14 July 2023
“Working with Ofir and her crew was a great pleasure for us. They were very sincere and discovered a different technique to do the task, which allowed them to stay under budget. Their work was of a high caliber and was done neatly. The lines of communication were open, constant, and transparent. Professionalism was evident throughout, and agreements and reporting were crystal clear. Communication was constant. The crew did a good job of cleaning the house before leaving and showed respect for our residence and daily routine.”
Baron Construction and Remodeling
House Extension Professionals in Los Altos, CA
Average rating: 5 out of 5 stars28 July 2014
“First they came and give us an estimate that we really liked, we signed the contract to do the kitchen floors. Before they started the job I ask them to give me a price for the complete kitchen remodeling. again we liked the price and we signed the contract (BTW they helped us with financing the job). during the process we found out the electrical wiring needs to be replaced mike gave us very good price on that so we let them do it. they also gave us 3D design rendering that was great, we actually could see how the kitchen will look like.. Roy Mike and the team where very helpful they answered all of our concerns and even when we change things around they where very understanding and helped us to make our dream come true. we where very impressed when all city inspection pass at the first time. we love how our kitchen came out, it looks amazing like it came out of a catalog, its like living in a mention. we will use Baron construction again to do our roof in the in the near future. they did exactly what they promise and above. we are extremely happy that we choose Baron construction and remodeling to do our kitchen.”
NuHome Remodeling
House Extension Professionals in Los Altos, CA
Average rating: 5 out of 5 stars23 November 2020
“Tony and his team did an excellent job . They expanded my master bedroom including the bathroom and a walk in closet. I am not the easiest customer. I had so many questions, and Tony was patient with me every step of the way. They were very thorough and competitive. They were constantly updating me and going over the process . The entire experience was great!! Always on time with a great attitude. I want to say that I worked with a few general contractors over the years and it is difficult to find a good one that actually keeps you updated. If you are looking for a good contractor, look no further! I am very satisfied!!! Thank you Tony and Nuhome! -Clement”
W and W Builders Group Inc.
House Extension Professionals in Los Altos, CA
Average rating: 5 out of 5 stars9 October 2018
“My husband and I recently purchased a house , it was old , but we loved it! Our goal was to make it comfortable , most important I wanted it to be warm . My husband is at work most off the day , therefore the task of finding the right company was on me. I asked for several contractors to come and give me a price for the project, W and W Builders Group was the 4 th company who came over, I met Magen and Gil, siblings, work as a team. The price they gave me wasn’t the cheapest from all, but something in their attitude was so welcoming it made me feel safe. They delivered everything they promised! The job was done neatly, from beginning to the very end, all crewmen were professionals, really considered and polite. Magen helped me with the design, and had some amazing ideas. I will definitely recommend these guys, true professional.”
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Builder FAQs
A house extension is a construction process that involves expanding the footprint of your existing home. This could be extending outwards, either to the side or rear of the house, or upwards by adding another storey. House extensions provide extra living space and can significantly increase the value of your property.

House extensions can be categorised based on direction, structure and function. The main types include rear extensions, side return extensions, wrap-around extensions, and double or single-storey extensions. More specific ones could be kitchen extensions, loft conversions, basement conversions, garage conversions or conservatories. Select the type that best suits your property and meets your space needs, if you are unsure, speaking with a local home extension builder in Los Altos.

Generally, house extensions are worth the investment. They provide additional living space and can dramatically increase the resale value of your home, often covering the initial investment cost. However, plan carefully and choose a reputable house extension builder to ensure a high-quality build that will add value to your property.

The cost of a house extension can vary significantly based on several factors, such as the size, complexity of the design, quality of materials used, and geographical location. However, as a rough estimate, a single-storey extension can range from £1,000 to £2,000 per square metre, whereas a two-storey extension can start at around £1,500 per square metre.

Planning a house extension involves several stages, including idea generation, design, planning permission, and construction. Consult with a house extension architect to create a design based on your needs and budget. Ensure to check with your local council about planning permissions. Finally, choose a reputable house extension builder to bring your vision to life.
Why Hire Home Builders on Houzz?
11,331Local Pros on Houzz Who Serve Los Altos, CA
95,000+Total Number of Reviews Left by Homeowners
Are you considering a house extension? On Houzz, you can find an extensive selection of Los Altos house extension professionals near you, eager to turn your vision into a reality. Whether you're planning an extra bedroom, expanding your kitchen or designing a brand-new workspace, these professionals have the skills and expertise to make your project successful. House extension professionals include architects who can draw up detailed plans and builders who will execute them to the finest standards.

Choosing a house extension professional on Houzz ensures peace of mind, knowing that you’re in safe hands. They come highly recommended with a strong track record of creating bespoke, high-quality extensions in Los Altos in a wide range of styles and budgets. Whether planning a new kitchen extension, adding a new storey, or just wanting more living space, find your house extension solution with us.

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