Built Right. Built to Last.
Sacramento's trusted general contractor delivering quality remodeling, additions, and new construction — backed by 11 years of experience and an unwavering commitment to building code compliance.
Expert Remodeling & Construction
Kitchen Remodel
Transform your kitchen with custom cabinets, quartz countertops, modern islands, and expert electrical and plumbing work.
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Bathroom Remodel
Modern bathrooms with walk-in showers, double vanities, custom tile work, and expert plumbing and electrical.
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Whole Home Remodel
Complete home transformations — kitchen, bathrooms, living spaces, structural changes, and everything in between.
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ADUs
Accessory Dwelling Units — attached and detached. Navigate permits, maximize your property, and add rental income.
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Room Additions
Expand your living space with seamlessly integrated room additions — bedrooms, family rooms, offices, and more.
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New Construction
Custom home building from the ground up — foundations to finishing touches, built right the first time.
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Garage Conversions
Convert your garage into a functional living space, ADU, home office, or guest suite with full permits and code compliance.
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Outdoor Living
Custom decks, patios, pergolas, outdoor kitchens, and living spaces designed for Sacramento's year-round outdoor lifestyle.
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Electrical Services
Expert electrical work by a licensed electrician — panel upgrades, rewiring, lighting, outlets, and EV charger installation.
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Second Story Additions
Add an entire second floor to your home — double your living space without expanding your footprint.
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Interior and exterior painting with meticulous prep work, clean lines, and lasting finishes that transform your home.
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Roofing
Complete roofing services — new roofs, replacements, repairs, and inspections by a licensed general contractor.
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Hardwood, tile, LVP, and laminate flooring installation with expert subfloor prep and seamless room-to-room transitions.
Learn MoreQuality You Can See
Every project reflects our commitment to craftsmanship, code compliance, and results that last for generations.
Complete Home Build — Hemenway St
Winters, CA
Modern Kitchen Remodel
Sacramento, CA
Blue Island Kitchen
Sacramento, CA
Open Floor Plan Kitchen
Sacramento, CA
Kitchen Counter & Sink
Sacramento, CA
Staged Kitchen Island
Sacramento, CA
No Shortcuts. No Excuses.
““We don't take shortcuts no matter the cost, right way and quality comes first always and the most important, I never hide when problems show up.”
— Gerardo Diaz, CEO / President
With 11 years of hands-on construction experience and a background as a licensed electrician, Gerardo Diaz founded Keystone Building Services on a simple principle: build it right the first time. Every project is personally overseen to ensure quality craftsmanship, strict code compliance, and a finished product you can proudly show off.
Learn Our StoryWhat Our Clients Say
“Gerardo and his team did an amazing job on our kitchen remodel. The attention to detail was incredible, and he kept us informed every step of the way. The finished product exceeded our expectations.
“We hired Keystone for our bathroom remodel and couldn't be happier. Gerardo's electrical expertise meant we didn't need to hire a separate electrician. Everything was done right the first time.
“From start to finish, this was the best construction experience we've had. No surprises, no hidden costs, and the quality of work speaks for itself. Our whole home remodel turned out beautifully.
Proudly Serving Sacramento & Surrounding Areas
From downtown Sacramento to the surrounding suburbs, Keystone Building Services brings expert remodeling and construction to homeowners across the greater Sacramento region.
Ready to Transform Your Home?
Get a free, no-obligation estimate for your project. Call us today or fill out our quick online form.