01
Home Additions & Second-Story Expansions
Second-story and first-floor additions, including the permitting, inspections, and city certification that come with them.
Learn more →Additions, remodels, and renovations, done right
Full-Scope Renovations, Permit to Move-In
GMBC Construction handles additions, remodels, and full renovations across the Bay Area, from permits and inspections to the final coat of paint.
4.7★
Google Rating
50
Reviews
Services
Everything we take on.
02
Kitchen Remodeling
Kitchen remodels with material samples and straight talk on price versus durability, scoped to fit your budget.
03
Bathroom Remodeling
Bathroom remodels from layout and budget planning through final tile and fixtures.
04
Interior Renovations & Room Conversions
Framing, drywall, trim, and paint to convert an existing room, like turning a den into a bedroom, into finished living space.
05
Condo & Full Home Renovations
Whole-condo and whole-home renovations covering framing, systems, and finishes, coordinated from move-out to move-back-in.
Photos
A look around.
Additions and renovations, handled start to finish, permits included
Our story
A Full-Service Contractor for Additions & Renovations
We take on the projects other contractors shy away from: second-story additions, whole-condo renovations, and remodels that touch every trade from framing to tile. Whether it's a kitchen, a bathroom, or a full expansion that needs new skylights, radiant-heated concrete, and city permits, we run it start to finish.
We keep a dedicated foreman on-site every day, starting on time and documenting every change order with signatures so there's never a question about scope or cost. When homeowners want to add something mid-project, like a garage drain, a stamped concrete patio, or a backyard shed, we work it into the plan instead of turning it away.
Our clients trust us with additions that take a year or more of permits, inspections, and city certification, and with remodels that need to be finished around a family still living in the home. Either way, we aim to make the process as accommodating as the finished result.
- Permits & inspections handled start to finish
- Same foreman on-site through the whole job
- Detailed documentation for every change order
What customers say
“GMBC deserves a 5+ star rating for our major construction project! We chose Moshe and his crew because of not only their expertise and their record of high-quality work but also their open communication and overcommunication approach. Construction in San Francisco, getting all the permissions, going through all the inspections, and getting the certification at the end from the city is not an easy task... GMBC and the staff are trustworthy, responsible, skilled, hardworking, and do premium work.”
“GMBC did a light renovation of an office/den area that we wanted to close in and convert to a bedroom. They did an excellent job of the rough and door framing, drywall, door moulding and painting. It looks as though the house was built with this improvement when they were done. They sent a crew of 2-3 people daily to complete the job and it was completed in 1 week. Very happy with the result.”
“Moses was an absolute Pro! I had an idea in mind for a bathroom remodel but got really frustrated figuring out the budget and layout. Moses made my dream a reality at an affordable price and I could not be happier! Thank You GMBC C!”
Get it booked.
Serving Hayward, CA, San Francisco, CA.
(650) 417-4489
Get directions →109 Jackson St, Hayward, CA 94544, USA
Hours
Closed now- Monday
- 8:00 AM – 6:00 PM
- Tuesday
- 8:00 AM – 6:00 PM
- Wednesday
- 8:00 AM – 6:00 PM
- Thursday
- 8:00 AM – 6:00 PM
- Friday
- 8:00 AM – 6:00 PM
- Saturday
- 8:00 AM – 6:00 PM
- Sunday
- 8:00 AM – 6:00 PM
109 Jackson St, Hayward, CA 94544, USA
Get directions →