Find a home addition contractor in San Jose, CA

Find Home Addition Contractors in San Jose, CA

Find Home Addition Contractors in San Jose, CA

Confirm your location to see the best home addition contractors near you.
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Find Home Addition Contractors in San Jose, CA

Confirm your location to see the best home addition contractors near you.
Zip code

Top 10 home addition contractors in San Jose, CA

Homeowners agree: these San Jose home addition contractors are highly rated for knowledge, experience, communication, and more.
LeCut Construction

LeCut Construction

5.0Exceptional(9)
5+ years in business
Serves San Jose, CA
Dennis L. says, "I recently completed a bathroom renovation with LeCut Construction, and I'm very impressed with the result. I found them on Angie's List and after interviewing four different companies, I chose them. What stood out was the project manager, Yari, who was knowledgeable and easy to talk to. Their quote was fair—not the highest or the lowest, but right in the middle. Once I signed the contract, I worked with their in-house designer, TAL, who provided an excellent layout and material recommendations. The project started in early July and lasted about five weeks. The entire team, including the crew foreman Luis, was professional and highly responsive. Luis did a great job coordinating all the workers, from the plumber and electrician to the tile installer and painter. Yari was also incredibly responsive. When the hot water was accidentally turned off after a plumbing installation, I called him late at night, and he immediately got the plumber to return to my house to fix it. This level of dedication made a huge difference. My new bathroom is beautiful, and I'm confident I'll enjoy it for years to come. I highly recommend LeCut Construction to anyone in the San Jose area looking for a reliable and professional company." Read more
Step Up Construction

Step Up Construction

New on HomeGuide
Serves San Jose, CA
Step Up Construction — San Jose’s Design & Build Specialists for High-Value Renovations We specialize in ADUs, home additions, and full-scale remodeling projects across San Jose and the South Bay. Our approach is simple: deliver clear pricing, fast timelines, and high-end results without the usual contractor chaos. Unlike typical contractors, we operate with a structured design-build system, allowing homeowners and investors to move from concept to construction with predictable costs and no surprises. What we do best: • ADU Construction (Garage Conversions & Ground-Up Units) • Home Additions & Structural Expansions • Full Home Remodeling &
The Remodel Nest

The Remodel Nest

New on HomeGuide
6+ years in business
Serves San Jose, CA
Established in 2017, The Remodel Nest is a premier home remodeling and renovation service in San Jose, CA, and its surrounding areas. They are committed to excellence, upholding a standard of integrity bound by fairness, honesty, and personal responsibility. Their distinction lies in the quality of service they offer their customers, ensuring their needs and concerns form the basis of their business. Specializing in kitchen, bathroom, and full house remodels, The Remodel Nest guarantees professional-grade work, regardless of the project size.
Campbell Showroom

Campbell Showroom

New on HomeGuide
40+ years in business
Serves San Jose, CA
I have many years of experience with many clients. I love the process of mI enjoy the people, eeting and developing a unique style for each person I work with. I like both large and small projects and have a deep knowledge of the marketplace and a long list of resources. I have worked with many interesting and discerning clients. I enjoy the process, the delivery of expectations for comfort and style, and the people I get to work for and with. Each job is new and fresh and always surprises me with what can be achieved....
Mariuc Build+remodel, Inc.

Mariuc Build+remodel, Inc.

New on HomeGuide
18+ years in business
Serves San Jose, CA
Mariuc build+remodel, inc., located in Redwood City, California, is a dedicated general contractor geared towards assisting homeowners and developers in building top-notch homes at unbeatable prices. They offer a unique service where clients purchase the finishes, and their expert team efficiently installs them. Their commitment to quality and affordability makes them a trusted partner in home building and remodeling projects.
J Romero Bros Construction Inc

J Romero Bros Construction Inc

New on HomeGuide
17+ years in business
Serves San Jose, CA
Established in 2009, J. Romero Bros Construction Inc. is a reputable concrete contractor based in San Jose, CA, and servicing surrounding areas. With over a decade of experience, they specialize in both residential and commercial projects. They offer a vast array of services, including building walkways, patios, pool decks, driveways, and more. Known for their hands-on approach and exceptional quality, they also provide emergency services ensuring comprehensive customer support.
Deep Purple

Deep Purple

New on HomeGuide
Serves San Jose, CA
At Deep Purple, we specialize in transforming your living spaces through expert general contracting services in Salinas, CA. Whether you're looking to remodel your home, finish a basement, or refresh your kitchen or bathroom, our dedicated team of three skilled professionals is here to deliver exceptional results. We pride ourselves on our attention to detail and personalized approach, ensuring your remodeling project is seamless and exceeds your expectations. Experience the craftsmanship and dedication that sets us apart in the industry.
HG And MS Concrete

HG And MS Concrete

New on HomeGuide
3 hires on HomeGuide
26+ years in business
Serves San Jose, CA
Hello my name is Hugo and I do my projects pro or jobs The best, I have 18 yrs of experience in all kinds of jobs
Green Galaxy Builders, Inc.

Green Galaxy Builders, Inc.

5.0(1)
11+ years in business
Serves San Jose, CA & Online
Gregory K. says, "Professionalism, Knowledge of Construction, Following Through, Understanding of best practices and building products such as SIPs that reduced cost, time, and increases performance and efficiency." Read more
Stage One  Construction,        Remodel Specialists

Stage One Construction, Remodel Specialists

5.0(1)
16+ years in business
Serves San Jose, CA
Pat D. says, "It was very easy to work with this company they listened to what my husband and I wanted both separately and collectively. Their knowledge and experience saved us time and money, we were so impressed by their craftsmanship we had them remodel a bathroom and paint the entire enterior of our rental property, even or kids were impressed by their kindness and patience!" Read more

Your Home Addition questions, answered

Answers to commonly asked questions from the experts on HomeGuide.

What is a home addition?

A home addition is a new structure added to an existing home. Home additions create more living space, accommodate a growing family, and improve the home’s overall value.

A home addition can be completed by making a single room bigger or adding an entirely new room or second story to the home. A more affordable home addition option is to convert an existing garage, basement, or attic into a more functional and comfortable living space.

Does a home addition increase property value?

A well-built home addition can increase property value. The increase in square footage adds value, especially if the addition includes functional and well-designed living spaces. An addition that adds an extra bedroom, bathroom, or larger kitchen can make the home more appealing to potential buyers.

How can I finance a home addition?

You have various financing options for a home addition, such as:

  • Home equity loans – These bank loans allow you to borrow a lump sum by using your home equity as collateral.
  • Home equity line of credit (HELOC) – Unlike a lump sum, this revolving credit line enables you to borrow against your home equity as needed.
  • Cash-out refinances – By refinancing your mortgage for an amount exceeding your current balance, the lender provides the surplus in cash, which can be used for home improvements.
  • Personal loans – Unsecured and without collateral, personal loans have higher interest rates, determined by your creditworthiness and loan approval.
  • Credit cards – Consider using a low-interest-rate credit card for smaller home additions, ensuring prompt repayment.

How can I save on a home addition?

Consider the following recommendations to reduce the expenses associated with a home addition:

  • Opt for a straightforward design with minimal features to keep costs down.
  • Construct the smallest addition that satisfies your requirements and complies with local regulations.
  • Explore the option of repurposing existing spaces, such as basements, garages, or attics, which is generally more affordable than building a new structure.
  • Do basic tasks like painting and interior finishing on your own to cut down on professional labor expenses.
  • Select budget-friendly building materials and finishes in more spaces, and splurge on a few items with the most impact.

How do I choose a home addition builder?

Follow these suggestions to get the best home addition contractor near you.

  • Seek estimates from several contractors for the same addition size and features, allowing for informed comparisons.
  • Evaluate the builder's reputation by checking recent reviews on HomeGuide and Google to assess their performance.
  • Request a site visit to see the contractor's construction methods and gauge their workmanship firsthand.
  • Choose a contractor with proven experience in the specific type of home addition you desire.
  • Protect yourself by requesting an itemized written contract that outlines the scope of work, specifications, and payment terms to prevent any misunderstandings.
  • Inquire about the contractor's preferred lenders to streamline the financing process and potentially secure better terms.
  • Exercise caution and avoid making large upfront payments. Never pay in full or in cash, as this could leave you vulnerable to potential issues.

What questions should I ask a home addition contractor?

Here are some helpful questions to ask a home addition contractor:

  • How many years have you been specializing in home addition projects?
  • How many home additions have you successfully completed within the past year?
  • Do you provide design services to help create a floor plan for the home addition?
  • Can you provide me with a list of references from previous clients, along with their contact information, so I can gather feedback on your work?
  • Do you have a portfolio showcasing your past home addition projects that I can review?
  • Are there any recent home addition projects I can visit to see the quality of your workmanship firsthand?
  • Are you fully licensed, insured, and bonded to protect me from any potential liabilities?
  • Can you advise me on the most suitable locations for building an addition to my home?
  • Can you provide me with a detailed cost estimate for the home addition project?
  • Are there any cost-effective strategies we can consider to reduce the overall expense of the project?
  • Can you provide a realistic timeline for completing the home addition project?
  • Who will be my designated project coordinator responsible for overseeing the project's progress?
  • Do you employ your own experienced crew, or do you subcontract the work to other contractors?

Reviews for San Jose home addition contractors

Recent success stories from people in the San Jose area.
Harold J.
I can not be happier with the results of our condo remodel. Yari and his team at LeCut Construction were great to work with. Yari kept us informed and updated throughout the construction process, and if we needed to make changes to the design or add additional work, he and his team were able to accommodate us. I would highly recommend Yari and LeCut Construction! We are looking forward to enjoying our renovated condo and spending more time in Aptos!
LeCut Construction
Moe A.
Highly, highly recommend Kevin and Tim. I had a great experience from start to finish. Thanks Cal Coast!!!
Cal Coast Window & Door
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