Bathroom Remodeling in the Peninsula & South Bay

Ready to completely update your bathroom? QualiBuild is a family-owned construction company and licensed California general contractor based in Sunnyvale. We remodel bathrooms across the Peninsula and South Bay, from Burlingame to Los Gatos.

A bathroom remodel is a lot of details that need to be thought through before the work starts. We keep the process clear and predictable: scope and cost agreed upfront, a real schedule, and easy communication throughout.

We pay special attention to what you won’t see once the remodel is done: proper waterproofing, plumbing, ventilation, and surface prep. And to what you will see every day: smooth walls, clean tile, straight lines, and quality finishes.

If you decide to change or add something mid-project, we discuss the cost and timeline first and put it in a written change order. No surprises on the bill.

If demolition uncovers hidden problems, like water damage, mold, rot, or structural issues, we show you what we found, explain your options, and agree on the next steps before any extra work begins. We don’t cover problems like that with new finishes, and we don’t leave them for later.

What We Do

  • Full bathroom remodels, from demolition to final walkthrough

  • Walk-in showers and tub-to-shower conversions

  • Tub installation, including freestanding tubs

  • Vanities, mirrors, lighting, and accessories

  • Shower and floor waterproofing

  • Plumbing, electrical, and ventilation

  • Tile and other finishes

  • Wall and ceiling leveling

  • Permit paperwork and inspection support

How It Works

Fast, free on-site visit. Tell us about your project and we’ll come out for measurements, usually within a day or two. We look at the space, listen to what you want, and tell you what we’d do.

A clear estimate. You see what the major decisions cost: tile, shower glass, vanity, layout changes. We price the options, and you decide with real numbers, not guesses.

Construction. A clean job site, a schedule you can count on, and regular updates on progress.

Final walkthrough. We’re done when you’re happy with every detail.

Prefer an online estimate? Send us a short video of your space and rough measurements, and we’ll send you a real number without the wait. We confirm everything on site before work starts, and if the scope matches what you showed us, the price holds.

Why Homeowners Choose QualiBuild

  • You deal with the owners. QualiBuild is run by Mikhail and Anna-Mariia. Anna-Mariia answers your call and keeps every project organized; Mikhail is on site, checking the work at every key stage. No call centers, no sales managers.

  • Licensed, bonded, and insured California General Contractor (CSLB Lic. #1142411).

  • Scope and estimate agreed upfront. Any changes or extra work are discussed with you and approved before they happen. No surprise lines on the final bill.

  • We prepare permits and handle city inspections for you.

  • Clean job sites and easy communication, the things our clients mention most in their reviews.

FAQ

How long does a bathroom remodel take?

Most bathrooms take about 2 weeks of construction, up to 3 for bigger changes. If a permit is required, the extra time before construction depends on your city.

What’s included in the price?

We prepare a detailed estimate for the agreed scope of construction work upfront. Materials are usually paid separately, because tile, fixtures, vanities, glass, and lighting can differ in price several times over depending on what you choose. You pick the materials that fit your design and budget, and the cost of our work is clear from the start.

Do I need a permit?

It depends on your city and the scope of the remodel. When plumbing, electrical, ventilation, or layout changes are involved, a permit is often required. If it is, we handle the process: plans, paperwork, submission to the city, and the inspections. Our permit work is included in the estimate. The permit fees set by the city or county are paid by the client at cost.

Do you help with design and materials?

Yes. We help with layout, materials, and technical decisions, and explain which options actually make sense for quality, durability, and budget. If you want a full design package first, we can recommend designers whose work we know. Then we build the construction plan and estimate, and deliver the remodel to match.

Can a small bathroom feel bigger?

Yes. Even without adding square footage, the right layout, shower size, vanity, mirror, lighting, and tile can noticeably change how the space feels. We’ll help you pick what works for your bathroom, not just what looks good in a photo.

Where We Work

We remodel bathrooms in San Mateo, Burlingame, Hillsborough, Foster City, Belmont, San Carlos, Redwood City, Atherton, Menlo Park, Woodside, Portola Valley, East Palo Alto, Palo Alto, Los Altos, Los Altos Hills, Mountain View, Sunnyvale, Cupertino, Santa Clara, Saratoga, Monte Sereno, Campbell, and Los Gatos.

Ready to update your bathroom? Tell us about your project - we’ll come out to measure within a day or two, or price it from a short video.