Custom Home Building
Ground-up homes built from your plans or ours, with design collaboration, permit coordination and full project management from the first survey to move-in day.

Turnil Construction, Inc. is a licensed San Mateo County general contractor handling custom homes, remodels, concrete, landscaping and everything structural in between, with our own crews.
At Turnil Construction, Inc. we build and renovate residential and commercial property across San Mateo County and the San Francisco Bay Area, from a kitchen remodel to a ground-up custom home.
Most jobs go sideways in the gaps between trades. We closed those gaps by keeping framing, concrete, roofing, landscaping and finish work in house, under one licensed contractor, with one schedule and one person you call. That is why clients keep bringing us the next project instead of starting over with somebody new.
“Gerson applies his knowledge and varied experience and together with his team performs excellent work.”Terry K. · Turnil client



Remodeling, room additions, decking, patios, landscaping and concrete work, each project built to your vision and to the highest safety and code standards.
Ground-up homes built from your plans or ours, with design collaboration, permit coordination and full project management from the first survey to move-in day.
Kitchens, bathrooms, room additions, attic and basement conversions and full home renovations, all built to California building and electrical code.
Foundations, slabs, driveways, walkways, steps and retaining walls, formed and poured by our own crews rather than handed off to a sub we have never met.
Outdoor spaces designed to be used: composite and wood decking, paver patios, planting beds, hardscape walls and drainage that actually works through a Bay Area winter.
Structural framing, shear walls, beams, stair framing and finish carpentry, including built-ins and custom millwork on the same job by the same crew.
Re-roofs, tear-offs, underlayment and flashing detail, plus siding and stucco repair, dry rot replacement and exterior painting.
We build with insulated concrete forms, a reinforced concrete core inside rigid insulation, producing structures that are exceptionally strong and highly resistant to fire.

Kitchens and baths, custom homes, concrete and outdoor spaces. Every photo here is our own work.





We come out, look at the property and listen to what you actually want. No charge, no pressure, and an honest read on what is realistic.
Design collaboration, scope and a written estimate, then we handle drawings, engineering and the permit process with the city or county.
Our own crews on site with one point of contact, a schedule you can see, and the trades sequenced so the job keeps moving.
Final inspections, a punch list we actually finish, and a walkthrough before we call it done.
Reviews from Turnil clients across San Mateo County. Full reviews are on our Google, Yelp and Thumbtack profiles.
“Overall, I was pleased with the job and had a very quick turn around time which is really hard to get these days. I will definitely use them again.”
“Gerson applies his knowledge and varied experience and together with his team performs excellent work. Turnil Construction has built out an attic, poured concrete, landscaped my yard, installed an electrical tie-in for a pump and outdoor lights, tile work, and fence installation. I have been very pleased with the results.”
“Turnil Construction is not only the best group of guys I've ever worked with, but their work ethic and attention to detail is amazing. And talk about value, they can't be beat!”
Based in San Mateo County and working up and down the Peninsula and into San Francisco.
Send us the basics and we will schedule a walkthrough of your property. You get a detailed written estimate after we see the site, not a number over the phone.