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House Extension Professionals in Cupertino, CA

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

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11,261 Professionals

Featured Reviews for House Extension Professionals in Cupertino, CA

1st Choice Builders
House Extension Professionals in Cupertino, CA
Average rating: 5 out of 5 stars3 January 2021
“Once again the experience was phenomenal! We have used 1st Choice Builders before for our current home and because of the excellent experience hired them again for 2 rental units that needed some renovations. Not only do they come in with the knowledge of the tactical elements to complete the job, but with 1st Choice Builders you receive so much more. As with any home project, there are always situations that arise that need some strategic solutions. 1st Choice Builders's master carpentry team are amazing! They can easily resolve any issue that appears to be complicated and to you the customer, makes it appear a)so minor and b)totally reduces any anxiety you may have. The other benefit to 1st choice builders is their extensive list of building suppliers for items needed. In addition, their master plumbers, electricians and HVAC to name a few are top notch. I see how this company has been in business for over 10 years based on their attentiveness to the customer - always responding quickly! As well their staff retention is high which speaks volumes to a business. We have referred them to a half dozen friends and neighbors - all who have been happy as well! 1st choice builders is like working with a friend!”
Golden View Renovation
House Extension Professionals in Cupertino, CA
Average rating: 5 out of 5 stars15 May 2021
“Hi :) my name is Annabelle and we are from Sunnyvale California, I just finished a new renovation, and I would like to share with you guys my wonderful experience, we started the process with a lot of fears because of previous experience that we had with another contractor two years ago, from the first meeting with Asi, me and my husband felt the honesty and integrity right away, we describe to her what we would like to achieve in our kitchen remodeling project and together with ideas that came from her designer we decided on the final layout, We needed a new kitchen renovation for our home ASAP, we are all working from home, my husband and I and our older daughter, and the kitchen became much more important, it was very surprising but we succeeded to pass all the inspections on time, The communication part was great, personally I preferred to communicate with Asi directly but they are working with a personal online portal that some people will find useful, we needed a few times that Asi will come to us to discuss on a few changes and we always felt comfortable to share with her our concerns and ideas, and eventually we are very satisfied from the end result!”
Westhill Construction Company
House Extension Professionals in Cupertino, CA
Average rating: 5 out of 5 stars9 March 2016
“We recently completed a major remodel of our 1970's vintage home engaging Chris Flores of Westhill Construction as our contractor. From our first meeting, where we asked scores of questions about the process, the costs, the design, and the timeline, Chris really listened to our vision for the project, offered many great ideas, and encouraged us to collaborate with him on all phases of the design and construction. Chris also provided us with a detailed bid which included options and relative costs of various design elements, quality of fixtures and finishes, etc. He gave us an extensive list of references who we contacted, and who were uniformly thrilled with Westhill's quality, service, and price. I should also make it clear that we interviewed four other well-respected construction companies before we decided on Westhill. While I'm sure that they are all good and capable contractors, not one of them was willing to provide the kind of detailed design and budget proposal that Chris offered us without first signing a contract and providing a hefty deposit. Throughout the remodel of our kitchen, dining room, entry hall, skylights, windows, doors, master bedroom, and three bathrooms, from demolition to the final cleaning, Chris and his team were always professional, courteous, and respectful of our home and grounds. Every afternoon, as the work day would come to a close, there was a general cleanup (never any trash left behind - not even sawdust), a report on what had been accomplished, and a preview of "next steps". As we moved through the timeline, Chris would meet with us and supply us with a checklist of our "next steps" in choosing appliances, hardware, tile, bathroom fixtures, etc. This really kept us focused and on track. There were no "surprises" in the process. Chris also stayed on budget. If we decided to make changes or up-grades along the way, he'd provide us with a price, as well as with alternatives, so that we could decide if the change was actually worth making. About a year after the completion of this remodel, we invited Chris back to help us with another project - transforming wasted space under our deck into a wine making and storage area. Once again, he took our ideas and made them a reality. This was not a straightforward design, but Chris was able to work within the space and now we have a place to make and store wine from our small cabernet vineyard. We know, first hand, how stressful and expensive a major remodel can be, but when you put your trust in Westhill Construction, you will not be disappointed. If we had to do it all over again, Chris would be the first person we'd call! He receives our highest recommendation! Thanks Chris!!”
California Construction Bay Area Inc.
House Extension Professionals in Cupertino, 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!”
Green California Builders Inc.
House Extension Professionals in Cupertino, CA
Average rating: 5 out of 5 stars20 February 2019
“I can't say many wonderful things about Green California Builders. I wanted to built a new home and had no idea where to start in regards to design and construction permits. I heard about these guys because of my friend. I met EZ (the main project manager) after scheduling the appointment. He guided us through the entire process with ideas, advises and material selection. I liked his vision and we agree on the budget. Few days later the project started. After few months, we now have a wonderful new house. I'm so grateful to choose these guys and I recommended them 100%!!!”
SOD Home Group
House Extension Professionals in Cupertino, CA
Average rating: 5 out of 5 stars4 July 2012
“SOD Builders did a complete home renovation for us (new kitchen, new laundry room, new floors and carpets, interior & exterior paint, electrical re-wire, plumbing, new doors, the works). The end product is beautiful, well-constructed, and they were a pleasure to work with. Very professional, very responsive and trustworthy. We look forward to working with them in the future!”
Bluejay Nest Construction Inc.
House Extension Professionals in Cupertino, CA
Average rating: 5 out of 5 stars19 March 2021
“We hired Bluejay Nest to finish a detached studio on our property. The main contractor, Gerardo, first came out to view the studio to provide us an accurate estimate for the job, Afterwards, they followed up via email with a detailed estimate. Vanessa and Gerardo are professional, quick to respond and knowledgable about the remodeling business. Gerardo's crew was available to complete the project around the new years holiday. They installed sheetrock and trim before painting the studio. In addition, they installed engineered hardwood flooring. The team cleaned up the work site meticulously as well. We are very happy with Bluejay nest and would highly recommend them. We are currently in the early stages of planning a remodel with them as well!”
Clever Design & Remodeling
House Extension Professionals in Cupertino, CA
Average rating: 5 out of 5 stars10 April 2020
“We hired Clever Design and Remodeling to remodel our kitchen in our condo. We had met with two other contracting companies and we were given a similar quote as Clever but to be honest, meeting with Gilli gave me a totally different level of confidence than meeting with the others. We replaced most of the carpeting in our home with European Oak wood flooring which is beautiful. We also had the kitchen cabinets refinished and a new stainless steel over the range microwave installed as well as coordinating new sink fixtures and all new cabinet hardware. Recessed lighting was installed in the living room, kitchen, and master bath with necessary patching and all ceilings painted. Roy was very knowledgeable of all aspects of the project -plumbing, electrical, carpentry- displaying true craftsmanship in his work. Gilli was great to work with, she is very detail oriented and he and his team always left our house and the common areas in the condo building extremely clean (cleaner than it was originally, honestly). The Clever Design and Remodeling team really went above and beyond in making sure we were comfortable and happy with the work. Strongly recommended!!!!”
Level Up Home Remodeling Inc
House Extension Professionals in Cupertino, CA
Average rating: 5 out of 5 stars19 April 2017
“Our recent home project included the complete remodeling of the kitchen, 3 bathrooms and wet bar. My husband and I decided on Level up home remodeling following our due diligence process (having interviewed multiple contractor candidates) given the prior reviews, competitive proposal, and positive impressions following our discussions with Issac. Issac estimated 3 months to complete the project beginning in August 2016, and although there were the unknown but expected bumps in the road along the way during the project, was able to complete the job on a timely basis. Both quality of workmanship and timely completion of the job was important to us, and Issac and his team delivered on both counts. Those working on our project were hard working competent individuals, punctual, courteous and easy to engage in conversation. Issac was at our site on a daily basis both overseeing the project and hands on with regards to any task. He and his team provided professional, thoughtful and viable options and resolutions to each situation/issue as they arose. We have used other contractors in the past, but Level up home remodeling outperformed all the predecessors. We are pleased with the results and would not hesitate in bringing back Issac team for other construction projects going forward.”
Decor Builders
House Extension Professionals in Cupertino, CA
Average rating: 5 out of 5 stars5 May 2020
“5 stars to Decor Builders! Thank you so much to Guy and Decor Builders for remodeling my bathroom, I was thinking to do my bathroom for a very long time but I was really nervous about the process and didn’t know any contractor I could trust. Guy made it all look very easy as he explained me every step and was very detailed and patience with me, He helped me choose all the materials and also help me with his contractor discounted prices. I love my new bathroom, if you looking to renovate your home Decor Builders is the right choice.”
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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 Cupertino.

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?
11,261Local Pros on Houzz Who Serve Cupertino, 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 Cupertino 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 Cupertino 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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