skip to main content
Photos
Photos
Advice
Stories From Houzz
Houzz Discussions
Houzz Research
Sign In
Houzz Logo Print

House Extension Professionals in Hillsborough, CA

Expand your living space with a well-designed extension, custom built to meet your needs and preferences

Get Matched with Local Professionals
Answer a few questions and we’ll put you in touch with pros who can help.

Location (1)

Popular Locations

All Filters
Hillsborough / 25 mi
Home Builders
House Extensions
1 – 15 of 11,409 professionals
1234567816Next Page
11,409 Professionals

Featured Reviews for House Extension Professionals in Hillsborough, CA

Inspired Builders
House Extension Professionals in Hillsborough, 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!!”
Kyvos Construction
House Extension Professionals in Hillsborough, 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”
Mayer's Construction and Remodeling
House Extension Professionals in Hillsborough, 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.”
Chesler Construction, Inc.
House Extension Professionals in Hillsborough, CA
Average rating: 5 out of 5 stars5 November 2015
“I have had the pleasure of building with Chesler Construction on several wonderful homes. As an architect, having the right builder working on you project is essential! Jim & Terry (as well as their entire crew) are an amazing group to work with. Innovative, accommodating and attentive. If I could have Chesler Construction build every home I design, I would be VERY happy architect! I really cannot say enough about them! Gary J Ahern, AIA”
Valley Boutique Builders
House Extension Professionals in Hillsborough, 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.”
Only Kitchens and Baths Inc
House Extension Professionals in Hillsborough, CA
Average rating: 5 out of 5 stars20 April 2021
“I contacted several companies on my kitchen remodel and Only Kitchens & Baths gave me best price-quality ratio. Only Kitchens & Baths team was great to work with, always on time, very professional, communicative and respectful to my home. The most important, my kitchnes turned out fantastic, even better than I expected. Thanj you Only Kitchens & Baths!!”
Green Planet Remodeling, Inc.
House Extension Professionals in Hillsborough, CA
Average rating: 5 out of 5 stars11 December 2015
“Solid team that knows what they are doing. The team at Green Planet Remodeling helped me renovate 2 bathrooms - and remedied a lot of the shoddy work that was lurking behind the wall (thanks to my crappy builder for those surprises). Good guys that were efficient and professional through the whole experience. They even provided me with a 3D Design for both of the bathrooms that another company wanted to charge me for! Easy to communicate. Highly recommend!”
CA Bear Construction
House Extension Professionals in Hillsborough, CA
Average rating: 5 out of 5 stars21 July 2023
“Ca Bear is the best, for so many reasons. The first project we did with them was a complete kitchen remodel December 2020. We took down walls, opened up our entire layout and had the best experience ever. A few things that stuck out to us: The speed at which work was completed. So efficient, and that matters when you’re spending a lot of money. Everyday ended with a shop vac sweep and our home was left as clean as it could possibly be. The creative vision that Brenda had for us. I don’t have that lens so thank god for her! The communication that Brenda provided us each day, we always knew what was happening and if there were any changes. Her management was key. Our kitchen was completed 2.5 years ago now, and everyday we sit there and say, “we love our kitchen.” We just love it! After the kitchen we did a closet remodel, again, awesome. Salvador is an incredible wood worker and again, Brenda make the whole process so smooth. A year ago we did a basement and laundry room conversion into a bedroom and laundry/full bathroom. We couldn’t be happier. Everything is still looking amazing, the quality of work is superb. We are so happy. I take my referrals seriously, and I back CA Bear while heartedly. They’re good people, trustworthy and hard working. And to me that matters the most.”
California Construction Bay Area Inc.
House Extension Professionals in Hillsborough, CA
Average rating: 5 out of 5 stars16 July 2018
“We planned a big project at first, and then the budget changed, so our plans had to change. California Construction was understanding, responsive, and stayed on schedule for the revised remodel. Excellent work!”
Rhino Builders
House Extension Professionals in Hillsborough, CA
Average rating: 5 out of 5 stars5 May 2022
“Rhino was able to provide me with the most quality deck build service I felt comfortable paying for in my area. They had all of the qualifications that I was looking for and their employees were super nice and their job quality was superior.”
1234567816Next Page
List your business here for free - Learn More
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 Hillsborough.

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?
11,409Local Pros on Houzz Who Serve Hillsborough, 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 Hillsborough 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 Hillsborough 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.

United Kingdom
Tailor my experience with cookies

Houzz uses cookies and similar technologies to personalise my experience, serve me relevant content, and improve Houzz products and services. By clicking ‘Accept’ I agree to this, as further described in the Houzz Cookie Policy. I can reject non-essential cookies by clicking ‘Manage Preferences’.