A-One Construction

A-One Construction

A-One Construction
14100 Doolittle Dr, San Leandro CA, 94577 USA


About Us

This commercial contractor is a GAF Factory-Certified Contractor.GAF trains and tests thousands of the best roofers in the country and makes sure they're appropriately licensed and insured so they can offer the best guarantees and warranties.

Member Since:
Certifications & Awards

*Contractors enrolled in GAF certification programs are not employees or agents of GAF, and GAF does not control or otherwise supervise these independent businesses. Contractors may receive benefits, such as loyalty rewards points and discounts on marketing tools from GAF for participating in the program and offering GAF enhanced warranties, which require the use of a minimum amount of GAF products. Your dealings with a Contractor, and any services they provide to you, are subject to the Contractor Terms of Use.

Customer Reviews

3.6 (19)

Google Reviews

Contractor reviews from customers on Google

  • "I wanted to send a very warm note of gratitude to Lisa, John, and the rest of the A-One Construction team for taking the roof coating issue at my property in their hands, for sending a crew, and getting the repair job done. It took a bit of time, a few back-and-forth emails, and some reminders, but the whole team was very courteous and professional throughout the process. I recommend A-One Construction."

    - P.B, Jan 22, 2022

  • "Very professional work and great customer service!"

    - A.O, Feb 22, 2021

  • "Do not hire a-one. Not only do they turn out unacceptably poor quality “work”, they did not practice any lead safety and poisoned our child. Their staff constantly turns over, leaves a mess of your space and is very unprofessional. They may be the lowest bid but you get what you pay for certainly in this case. Hire nice or hire twice (we are currently still fixing their mistakes a year later) They are messy and are not properly trained."

    - S.B, Feb 18, 2021

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