AlphaBuild, Inc.

5.0 |36 Verified Ratings
Write a Review

AlphaBuild, Inc.

5.0 | 36 Verified Ratings
Write a Review


1944 O'Toole Way
San Jose, CA 95131
Your use of our services is governed by our Terms & Conditions

AlphaBuild, Inc.

We apologize, we are not servicing small repairs or projects at this time!!!

AlphaBulid, Inc., is a locally owned and operated construction company with over 10 years of experience working with homeowners in the Bay area. We offer full scale remodels and renovations, from a single bathroom to an entire interior remodel. No job is too big or too small for us to handle with precision and ease, so call us today! We specialize in larger renovation projects and kitchen/bathroom remodels. Our services are typically aligned with customers needing $10,000 or more in completed work. Our professional and highly staff is glad to discuss you project in person and offer consultation!


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Service Area

  • Palo Alto
  • Santa Clara
  • Mountain View
  • San Mateo
  • Sunnyvale
  • Redwood City
  • San Jose
  • Menlo Park
  • Campbell
  • Los Altos
  • Los Gatos
  • South San Francisco
  • Saratoga
  • Burlingame
  • Cupertino
  • Stanford
  • La Honda
  • Atherton
  • Belmont
  • Portola Valley
  • San Bruno
  • San Carlos
  • Millbrae
  • See All >

Services Offered

Additions & Remodeling
  • Bathroom Remodel
  • Kitchen Remodel
  • Custom Arbor, Pergola or Trellis
  • Deck or Porch Build or Replace
Sheds & Enclosures
  • Gazebo Install

Areas of Expertise

  • Interior Renovations & Remodels
  • Window & Siding & Stucco and any exter remodel
  • New Decks, Garages, & Patios
  • New Construction
  • Roofs

Quick Facts

Business Hours
8:00 AM to 6:00 PM
8:00 AM to 6:00 PM
8:00 AM to 6:00 PM
8:00 AM to 6:00 PM
8:00 AM to 6:00 PM
10:00 AM to 6:00 PM
(Please call to confirm)
  • Warranty Offered
  • Warranty Description: life time
  • Credit Cards Accepted
  • Bilingual


In Business Since: 2017
Memberships & Affiliations
  • business consumer alliance
State Licensing
Trade: B-General Building Contractor
License #: 1055508
Expiration: 07-31-2021
Trade: C-02 Insulation and Acoustical
License #: 1055508
Expiration: 07-31-2021
  • 5 stars yelp company
  • AA rating in Business Consumer Alliance
  • Preferred contractor for California First group
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AlphaBuild, Inc.

My Work
2 Projects
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Ratings & Reviews
AlphaBuild, Inc.

Real feedback from real homeowners.
Learn more about this pro by reading the ratings and reviews below.
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Showing 1-10 of 36
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5.0   |  
Review by in San Jose, CA
We contracted AlphaBuild to remodel our bathroom. Let me tell you that David and his team are absolutely awesome! Quite seriously, this is the first time weâ ve had work done (and weâ ve done a lot of remodeling) where I didnâ t have to worry about a SINGLE thing. AlphaBuild took care of everything down to the last detail and it was top quality work. Our main contractor for the job, Ubaldo Juarez, was phenomenal. He is a brilliant contractor and a super nice guy. Always very communicative, he would keep us updated on progress and timelines. When he had a question, he would ask, and he had a lot of questions, because he wanted to make sure he was doing things exactly the way we wanted. And, really surprising, he wouldnâ t hesitate to make recommendations, and all of them were great. How many contractors actually take the time to do that anymore? Really thoughtful and it turned out he was 100% right on all the changes he recommended. Amazing! David is great! Super friendly, wonderful to deal with, an all around good guy. He is honest and up front with the costs. Not a single hidden cost or complicated change request process. AlphaBuild was the only company that gave us a realistic estimate of time from the get-go, whereas others were quoting us a week to a week and a half (we knew that was not possible). And they delivered in the timeframe they said they would. Whenever a change was needed, David communicated the cost to us and made sure we knew before the changes were made. He came by frequently to check up on progress and to make sure we were happy. He was also really helpful in guiding us on the selection of materials and configuration of the new bathroom, which was a real help! Seriously, weâ re so glad we found David and AlphaBuild. Will we use them again for future projects? Absolutely! We highly recommend AlphaBuild for any of your projects, small or large. They are absolutely fantastic!
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5.0   |  
Review by in San Jose, CA
Phenomenal! Couldn t ask for a better company to remodel my dream home. Thank you Jonathan and David for your hard work, for your integrity, for you honesty, and for your diligence. Thank you
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5.0   |  
Review by in San Jose, CA
Amazing job, Amazing crew, Amazing human relations, Amazing experience! AlphaBuild Will be always our number one contractor. Jonathan and David are the best ! They Our family business which made us feel more confident in them and in their responsibility, and I really care about your satisfaction more than they care about charging you extra dollar for any additional work, They remodeled our kitchen, two bathrooms, living room and bedrooms, A complete remodel, and we couldn t be happier! They were always in control, always on time, always worked hard and finished before the timeline we were given! Thanks again Johnathan David and thanks alpha build.
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5.0   |  
Review by in San Jose, CA
Alpha Build exceeded our expectations in every way possible! We remodeled our kitchen and bathroom and are so impressed with the work that was done. The kitchen project involved removing a load bearing wall and removing and moving the door from the kitchen to the garage to a new location. The bathroom was totally redone. The way David listened to our needs then captured our vision for the new kitchen was exciting. Then he deftly navigated the plans and city inspections to make things stress free and easy for us. We would recommend them just for the fantastic communications! Once the work began, we had the best construction team ever. Led by Ubaldo, we were amazed at the level of attention that was paid to every detail. He went out of his way to make sure that everything was done perfectly. He always discussed any choices we had and lent his wisdom so that the project would turn out exactly the way we had hoped. We added the bathroom remodel on to the project as the kitchen was finishing. We were so impressed with the kitchen, that we really wanted them to work their magic on the bathroom. I have never had as much confidence in the integrity and quality of a contractor as we have in Alpha Build!
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5.0   |  
Review by in San Jose, CA
We are extremely satisfied with our new Dwelling unit! David and Jonathan did an amazing job designing and building our back in-law unit. They always arrived on time, they were dedicated to the project from start to finish, never left for another project like most of.the contractors out there! Our overall experience was great. Highly recommend !!
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5.0   |  
Review by in San Jose, CA
Jonathan and David were the best! They helped us from the very beginning of the engineering part all through to city approval and the construction part. They made sure every single one of my concerns were answered. My husband and I felt comfortable with the work and the workers. I would hire them again! These guys are the best pick! You cannot go wrong, they really do care and that is rare these days!
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5.0   |  
Review by in San Jose, CA
He is very patient and he made sure he met my exceptions!! I would highly recommend him!!
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5.0   |  
Review by in San Jose, CA
This crew was very efficient and remodeled our master bathroom in a little over 2.5 weeks. I love my new bathroom!
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5.0   |  
Review by in Los Altos, CA
We were extremely satisfied with Jonathan and his team doing our kitchen and bathroom remodel. We had a tight schedule with relatives coming in a few weeks. Jonathan had his worker come in Saturdays to help get it done on time. Jonathan's workers, Jose and his son and the others, were very skilled, caring, understanding and patient with us. We would highly recommend Jonathan and his team for your remodeling projects. Tom and Patti
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5.0   |  
Review by in San Jose, CA
Jonathan and those who work with him are professional, timely, courteous and competent. They also kept the rest our house clean. We were comfortable with them working in our home and would not hesitate to use them again or recommend them to friends. We are pleased with our two remodeled bathrooms and are enjoying them.
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Showing 1-10 of 36
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