Bathroom Remodeling in Sunnyvale - Fixed Price, Set Finish Date

Trusted Bathroom Remodeling for Sunnyvale Homeowners

A full bathroom remodel in Sunnyvale typically runs $9,000-$28,000, with most projects quoted in writing within 48 hours of our first visit. Rowan Construction Group has delivered 4,000-plus projects since 2007, every one with a written price before work started and a documented photo record when the crew left. We’re led by Grant Rowan and operate under The Haven Standard, which means Clause 1 applies here too: the price is written before anyone picks up a tool.

Call (650) 405-3637

Sunnyvale’s housing stock runs the gamut, from 1950s Eichler originals near Fair Oaks to the newer townhomes sprouting up around Lawrence Station. What we see most often isn’t catastrophic failure, it’s accumulated compromise: a vanity cabinet swelling at the seams from years of steam exposure, a shower pan that’s been leaking slowly into the subfloor since the previous owner “fixed” it, tile set directly on greenboard in a Murphy Park condo built during the last boom. These problems don’t announce themselves. They show up as a musty smell, a soft spot near the toilet, or grout that won’t stay clean no matter what you scrub it with.

We serve Sunnyvale homeowners with background-checked, uniformed crews and a live person answering calls at (650) 405-3637. Every visit includes a documented photo record, included as standard, not an upgrade. Our home page outlines the full scope of our seven trades.

What Our Bathroom Remodeling Service Includes

Full Bathroom Remodeling

A full bathroom remodel strips the room to the studs, replaces or relocates plumbing rough-ins, and rebuilds with new materials selected from our vetted catalog of fifty-plus brands. In Sunnyvale, we most often perform these on bathrooms last updated in the 1980s or 1990s, when polybutylene supply lines and galvanized drains were still common in neighborhoods like Ponderosa and Birdland. We remove everything, inspect the substrate for moisture damage, replace the drain-waste-vent system if it’s deteriorated, and rebuild with a written scope that doesn’t change unless you sign a change order.

Walk-In Showers & Shower Remodeling

Walk-in shower remodeling replaces a contained shower enclosure, tub-shower combo, or outdated stall with a curbless or low-threshold entry designed for accessibility and ease of cleaning. Sunnyvale’s aging-in-place market has grown steadily, particularly in the Heritage District and along El Camino Real corridor condos where owners plan to stay put. We specify Schluter or Wedi waterproofing membranes, explain the difference in a single clause (Schluter uses a bonded polyethylene sheet, Wedi a foam-core board with integrated sealing), and show you the photo record of every layer before tile goes up.

Tub-to-Shower Conversion

A tub-to-shower conversion removes the bathtub, reconfigures the drain from a 1.5-inch tub outlet to a 2-inch shower drain (required by California Plumbing Code for proper evacuation), and builds a shower pan with integrated waterproofing. In Sunnyvale, this is our most requested bathroom project in homes under 1,400 square feet, where the sole bathroom must work harder. The typical conversion runs $3,500-$10,000 depending on whether we’re moving the valve location or working within the existing wet wall.

Vanities

Vanity installation or replacement addresses the cabinet, countertop, sink, faucet, and mirror as a system, not a collection of parts. We source KraftMaid and Wellborn cabinets with plywood box construction (not particleboard, which swells at the first persistent leak), pair them with Cambria or Caesarstone countertops cut to your measurements, and install Kohler or Toto fixtures with supply stops accessible for future service. In Sunnyvale’s competitive resale market, a well-specified vanity is often the detail that distinguishes a remodeled bath from a refreshed one.

Tile & Fixtures

Tile and fixture work covers the visible surfaces: floor tile, wall tile, accent strips, grout specification, and the mechanical fixtures that thread through them. We set tile on cementitious backer board or foam-core waterproofing panels, never directly on drywall, and we specify grout width and sealant based on tile dimension and location (wider grout joints with sanded grout for floors, narrower with unsanded for walls). Our fixture catalog includes Kohler, Toto, and specialty lines; we explain the water efficiency ratings and valve compatibility in the written quote, not after installation.

Small Bathroom Remodels

Small bathroom remodeling, typically under 40 square feet, demands precise spatial planning because there’s no margin for error in layout. We’ve remodeled powder rooms in Sunnyvale’s Lakewood and Ortega neighborhoods where the existing footprint was 5 by 6 feet and the owner wanted a wall-hung toilet to reclaim floor space for storage. We bring the same precision to Bathroom Remodeling in Cupertino. These projects run $5,000-$12,000 and require the same permitting and inspection sequence as larger baths, which we handle from application to final sign-off.

Walk-In Shower Installation

Walk-in shower installation builds a new shower where none existed, most commonly in a bathroom previously equipped with only a tub, or as part of a master suite expansion in a Bathroom Remodeling in Sunnyvale addition project. We frame the curb or curbless entry, install the pan liner or bonded waterproofing system, rough in the mixing valve at code height (48 inches to centerline in California), and tile to your specification. The typical range is $4,500-$12,000, with frameless glass enclosures adding $1,200-$3,500 depending on panel count and hardware selection.

Brands We Service for Bathroom Remodeling

We’ve installed and serviced Owens Corning bathroom ventilation systems in hundreds of Sunnyvale homes, particularly in the older stock near Washington Park where original exhaust fans were either absent or vented into the attic space rather than through the roof. Their QuietCool series moves the rated CFM at the duct length we actually encounter, not the laboratory ideal, and we document the airflow measurement with a handheld anemometer as part of our photo record.

CertainTeed’s waterproofing and cement board products form the substrate layer in many of our shower rebuilds. Their GlasRoc Tile Backer, a glass-mat-faced gypsum panel, meets ASTM C1178 and installs with the same screws and pattern we use for cement board, but at lower weight. We’ve used it successfully in second-floor Sunnyvale bathrooms where the joist structure couldn’t accommodate the dead load of traditional cement board without reinforcement.

Whether you have Owens Corning, CertainTeed, or any other make, we can help. Our fifty-plus vetted brands give the written quote honest numbers rather than inflated ones.

Before

After

Signs You Need Bathroom Remodeling Right Now

• Soft or spongy flooring near the toilet, tub, or vanity indicates moisture has compromised the subfloor, often from a wax ring failure, tub drain leak, or failed shower pan membrane. In Sunnyvale’s climate, where winter humidity spikes and summer dryness creates expansion-contraction cycles, this damage accelerates once it starts. We probe with a moisture meter and document the reading; anything above 16% wood moisture content in a bathroom subfloor means the waterproofing layer has failed somewhere.
• Grout that cracks, falls out, or never looks clean suggests either improper original installation (too narrow a joint for the tile size, or unsanded grout used on a floor) or ongoing moisture migration behind the tile. In the Moffett Park area, we’ve found original 1980s tile jobs set in organic mastic rather than thinset, which re-emulsifies with sustained moisture exposure.
• Peeling paint, bubbling drywall, or visible mold on the bathroom ceiling points to inadequate ventilation, not just a cosmetic issue. California’s Title 24 now requires 50 CFM intermittent or 20 CFM continuous exhaust for bathrooms, and many Sunnyvale homes built before 2005 fall short. We calculate the required airflow based on room volume and specify a fan that actually moves that air through your duct run, not just at the motor housing.
• A vanity cabinet that won’t close square, or countertops that have separated from the wall means the cabinet box has absorbed moisture and swollen, or the wall behind it has degraded. Particleboard vanities, common in builder-grade Sunnyvale homes from the 1990s and 2000s, fail at the sink cutout first. We replace with plywood-box cabinets and verify wall flatness with a 4-foot level before setting the new unit.
• You’re avoiding the guest bathroom, or using the master bath exclusively is a behavioral signal that the space has crossed from dated to dysfunctional. We’ve heard this exact description from Sunnyvale homeowners in Cherry Chase and Serra neighborhoods, where the secondary bath became storage because the shower temperature fluctuated, the toilet ran, and the lighting made shaving a guessing game. Remodeling restores utility to underutilized square footage.

Our Bathroom Remodeling Process - Step by Step

1. 1
   On-site assessment and photo documentation. We arrive at your Sunnyvale home with a uniformed, background-checked technician and document the existing conditions with dated, geotagged photographs. We test the drainage flow rate, probe suspect areas with a moisture meter, and note the location of shut-off valves, electrical panels, and any structural elements that affect the scope. You receive this photo record before we leave.
2. 2
   Written quote with line-item pricing. Under Clause 1 of The Haven Standard, we deliver a flat written price with a written scope before any work starts. The quote specifies materials by brand and model where selected, labor by phase (demolition, rough plumbing, electrical, tile, finish), and a contingency line if exploratory work is required. No work proceeds on a change until the change order is signed.
3. 3
   Permit application and scheduling. We pull the building permit with the City of Sunnyvale’s Building Division, submit the required plans, and schedule inspections at rough-in and final. Sunnyvale requires a plumbing inspection for any drain relocation or fixture change, and an electrical inspection for new circuits or GFCI protection additions. We coordinate these around your schedule and confirm by text, not just phone.
4. 4
   Demolition and substrate repair. The crew removes existing fixtures, tile, and cabinetry, then inspects the framing, subfloor, and wet-wall plumbing for concealed damage. We photograph everything exposed and halt work if we find conditions outside the original scope, presenting a signed change order with the photo evidence before proceeding. This discipline, acquired by Haven when they brought Rowan into the group, is why our projects finish within a few percent of the agreed price.
5. 5
   Installation, inspection, and final documentation. We build in sequence: rough plumbing and electrical, insulation and waterproofing, tile and fixtures, paint and trim. Each phase passes inspection before the next begins. At completion, we deliver a final photo record, the signed inspection cards, the written warranty under our 365-Day Done Right Promise, and a maintenance guide specific to your materials. If it’s not done right, Rowan makes it right, backed by The Haven Standard, not a handshake.

How Much Does Bathroom Remodeling Cost in Sunnyvale?

Bathroom Remodeling Near Sunnyvale - Our Service Area

We work throughout Santa Clara County and the mid-Peninsula, with typical drive times under 25 minutes to Bathroom Remodeling in Mountain View, Bathroom Remodeling in Santa Clara, Los Altos, Cupertino, and Palo Alto. Saratoga and Milpitas are regular stops; Newark, Campbell, Fremont, and Menlo Park fall within our standard service radius. We don’t charge travel fees within this area, and we schedule to minimize crew transit time so your project stays on sequence.

Frequently Asked Questions - Bathroom Remodeling in Sunnyvale

Schedule Your Bathroom Remodeling Service in Sunnyvale Today

Call (650) 405-3637 to schedule your free estimate. You’ll receive a written, line-item quote before any work starts, a documented photo record at every visit, and the 365-Day Done Right Promise backed by The Haven Standard. No obligation, no hidden fees, no changes without your signature. Grant Rowan and the team at Rowan Construction Group have worked this way since 2007.

Written by Grant Rowan, Owner at Rowan Construction Group, serving Sunnyvale since 2007.