Bathroom Remodeling in the Bay Area
A bathroom remodel delivers some of the highest returns on investment for Bay Area homeowners—and even more importantly, it transforms how you start and end every day. 4Sigma designs and builds bathrooms throughout San Francisco, the Peninsula, East Bay, and South Bay. Whether you’re dreaming of a spa-style primary suite or a fresh, functional guest bath, we handle every detail from design to tile to fixtures.
Bathroom Services
Primary Bathroom Remodels
Your personal sanctuary. Expansive walk-in showers with frameless glass, freestanding or built-in soaking tubs, dual vanities, heated tile floors, and custom lighting—crafted around how you want to use your space.
Guest & Hall Bathrooms
Smaller space, bigger impact. We update dated guest baths with new tile, vanities, fixtures, and lighting to create a polished, cohesive feel throughout your home.
Shower Conversions
Replace a tub/shower combo with a full walk-in shower. We handle custom tile work, built-in niches, shower benches, frameless glass installation, and all plumbing work.
Accessibility Remodels
Barrier-free design for aging-in-place or ADA-compliant modifications: walk-in shower with no threshold, grab bars, comfort-height toilets, and wider doorways.
Our Signature Features
- Custom Tile Work — Floor-to-ceiling tile designs in marble, porcelain, cement tile, and specialty mosaics
- Waterproofing — Proper waterproofing behind every tile installation—done right the first time
- Heated Floors — Radiant floor heating systems for cold Bay Area mornings
- Frameless Glass — Custom-cut frameless glass enclosures for walk-in showers
- Premium Fixtures — Kohler, Moen, Delta, Hansgrohe, and other top-tier brands
How Much Does a Bathroom Remodel Cost in the Bay Area?
| Project Type | Typical Range |
|---|---|
| Guest bathroom refresh | $5,000 – $16,000 |
| Mid-range bathroom remodel | $17,000 – $29,000 |
| Luxury primary bathroom | $30,000 – $50,000+ |
Frequently Asked Questions
How long does a Bay Area bathroom remodel take?
Typical bathroom remodels take 2–8 weeks from demolition to completion. Primary suites with custom tile and specialty fixtures may take longer depending on material lead times.
Do I need a permit to remodel a bathroom in San Francisco bay area?
Permit requirements depend on scope. Moving plumbing or electrical typically requires permits from the San Francisco DBI or local equivalent. We manage the entire permitting process for you.
Can you remodel a small bathroom with limited space?
Yes—we can remodel compact bathrooms. Smart layout choices, large-format tile, and well-placed mirrors can make a small bathroom feel luxurious.
Let’s Design Your Perfect Bathroom
Book a free consultation and let’s talk through your vision, timeline, and budget.