Free written scope consultation - allowances, timeline, and change-order rules on paper before a single trade is scheduled
Fast, Reliable Bathroom Remodeling Across Northridge
A typical bathroom remodel in Northridge runs $9,000-$28,000 and takes two to four weeks from permit approval to final inspection. Our crews serve Northridge from our Los Angeles office, and we’ve worked in the ranch tracts near Northridge Park, the apartment corridors along Reseda Boulevard, and the hillside homes near Chatsworth Reservoir. Call (213) 221-0788 to schedule your free estimate.
Northridge’s housing stock is a patchwork of post-WWII ranches and 1960s-70s wood-frame construction, many sitting on raised perimeter foundations with cripple walls that the 1994 earthquake racked and never properly repaired. That structural legacy shapes every bathroom we remodel here. When we open walls and floors in these homes, we find conditions that don’t show up in newer Valley cities - and we price them in writing before anyone picks up a tool.
Why Rowan Construction Group Sherman Oaks Is Northridge’s Preferred Bathroom Remodeling Company
We’ve delivered more than 4,000 projects since 2007, every one with a written price before work started and a documented photo record when the crew left. Northridge homeowners get the same discipline: a flat quote with line-item scope, a signed change order for anything unexpected, and the 365-Day Done Right Promise printed on every contract.
Our crews know the local permit path at the Los Angeles Department of Building and Safety Valley office. We understand which Northridge neighborhoods sit in high-fire-hazard zones near the foothills, where WUI construction standards apply to exterior modifications. And we know the specific failure modes of 1950s-60s tract bathrooms: unbraced cripple walls, galvanized supply lines, cloth-wrapped wiring, and waterproofing that failed decades ago.
A live person answers our phones 24/7. Background-checked, uniformed technicians arrive with a photo documentation kit as standard - not an upgrade. Bring any competitor’s written estimate and we’ll review it line by line at no charge.
Our Bathroom Remodeling Services in Northridge

Full Bathroom Remodeling
Our Bathroom Remodeling team handles complete gut renovations in Northridge’s older ranches and apartment conversions. We strip to studs, inspect the cripple wall and subfloor connection, replace galvanized supply lines with copper or PEX, and install new waterproofing membranes before tile. Every full remodel includes permit pulling, inspection scheduling, and a written draw schedule tied to sign-off milestones.
We see a specific pattern in Northridge’s 1960s slab baths: the original hot-mop waterproofing has cracked from decades of inland heat cycling, and water has been migrating into the subfloor for years. We catch this during demolition, document it with photos, and write the repair into a fixed-price change order before proceeding.

Walk-In Showers & Shower Remodeling
Walk-in shower installation in Northridge typically costs $4,500-$12,000. We install curbless and low-threshold designs with proper slope-to-drain engineering, Schluter or Laticrete waterproofing membranes, and frameless glass enclosures. In hillside homes near the Chatsworth Reservoir edge, we factor WUI-compliant exterior venting if the bathroom shares a wall with the home’s outer envelope.
The 105°F-plus summer heat in the San Fernando Valley accelerates concrete and mortar curing, so we schedule pours and tile sets for early morning to prevent rapid drying and adhesion failure.

Tub-to-Shower Conversion
Tub-to-shower conversion in Northridge runs $3,500-$10,000. This is one of our most common requests in the 1950s-60s ranches near Northridge Park and the apartment stock along Reseda Boulevard, where aging steel tubs sit in 5-foot alcoves with outdated plumbing walls.
The conversion often exposes the same structural issues we find in full remodels: unbraced cripple walls beneath the bathroom, inadequate framing around the tub deck, and supply lines that won’t support modern pressure-balanced valves. We inspect these conditions during our initial site visit, price any necessary repairs in the base quote, and never proceed on a change without a signed change order.

Vanities, Tile & Fixtures
We source from fifty-plus vetted brands including Kohler and Toto fixtures, Cambria and Caesarstone countertops, and KraftMaid and Wellborn cabinetry. Vanity installation in Northridge ranges $800-$3,000 depending on plumbing relocation and countertop material. We verify that existing supply stops and drain lines are compatible with modern fixtures - many Northridge homes still have 1.5-inch drains that need upsizing for contemporary sinks.

What happens when you call
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A real person answersNo phone trees - you reach a local pro.
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You get an upfront price rangeHonest numbers before anyone is dispatched.
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A background-checked tech heads outLicensed & insured, dispatched right away.
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You approve before work beginsNothing starts until you say go.
Before
AfterTrusted Brands We Service in Northridge
Our supplier relationships with Kohler, Toto, Cambria, and Caesarstone mean we don’t inflate material costs to cover uncertainty. We quote with real SKU numbers and current distributor pricing. For Northridge homeowners, this translates to faster lead times on fixtures and the ability to source replacement parts without cross-valley delays. We also work with innovative prefabricated systems from brands like Plant Prefab and Mighty Buildings for clients exploring modular bathroom solutions in ADU or addition projects.
Common Bathroom Remodeling Problems We See in Northridge Homes

- Unbraced cripple walls beneath bathroom floors. The 1994 Northridge Earthquake exposed this failure mode across the city’s 1950s-60s ranch tracts, and many homes were never properly retrofitted. We find split studs, missing anchor bolts, and un-sheathed knee walls once the subfloor comes up - conditions that must be addressed before any tile or fixture installation proceeds.
- Failed waterproofing from heat-cycled membranes. Original hot-mop or thin-set waterproofing in 1960s Northridge bathrooms has typically cracked within 12-18 months of any prior remodel that didn’t replace it. The San Fernando Valley’s extreme temperature swings accelerate the deterioration, causing leaks that damage subfloors and cripple wall plates.
- Aging galvanized supply and cloth-wrapped wiring. These materials run through bathroom walls in pre-1970s Northridge construction and won’t pass modern permit inspection. If we don’t catch and replace them during rough-in, the inspection sign-off fails and the project stalls until trades re-mobilize.
- Undersized 2x framing around tub and shower alcoves. Original construction in Northridge’s tract homes often used minimal framing that won’t support modern tile weights or grab-bar loading. We inspect and reinforce as needed, with the work priced and approved in writing before demolition.
Pricing for Bathroom Remodeling in Northridge, CA
Every project gets a flat written price before work begins. Under Clause 1 of The Haven Standard, “call for a quote” is not an option here. Below are the ranges we see in the Northridge market:
| Service | Price Range in Northridge |
|---|---|
| Bathroom Remodel | $9,000-$28,000 |
| Small Bathroom Remodel | $5,000-$12,000 |
| Walk-In Shower Installation | $4,500-$12,000 |
| Tub-to-Shower Conversion | $3,500-$10,000 |
| Bathroom Vanity Installation | $800-$3,000 |
What moves the number: bathroom size, fixture grade, plumbing relocation distance, and structural conditions discovered during demolition. We build allowances into every Northridge contract for the common surprises - cripple wall bracing, supply line replacement, subfloor repair - so the homeowner knows the ceiling before we start. Any condition outside the allowance gets a fixed-price change order with photos and written approval. No work proceeds on a change until the change order is signed.
Call (213) 221-0788 for an exact quote - estimates are free.
We Also Serve Cities Near Northridge

Our crews work throughout the west San Fernando Valley. We regularly handle Bathroom Remodeling in Northridge and neighboring Chatsworth, Canoga Park, Tarzana, and Encino. Each city has its own permit office, inspection timeline, and housing-stock quirks - we adjust our documentation and scheduling accordingly.
Serving Northridge, CA - Our Local Coverage Area
We’re based in the Northridge area and know this community well. Use the map below to see our service coverage - if you’re nearby, we can almost certainly help.
FAQs - Bathroom Remodeling in Northridge

Yes. The Los Angeles Department of Building and Safety requires permits for any bathroom remodel involving plumbing, electrical, or structural changes - which covers nearly every project we do. The inspection checks waterproofing membrane installation, plumbing pressure tests, GFCI outlet placement, framing adequacy, and - in Northridge’s older homes - whether seismic bracing was triggered by the scope of work. Call (213) 221-0788 and we’ll walk you through the permit path for your specific address.
Probably. We find unbraced cripple walls, missing anchor bolts, or split studs in a significant share of 1960s Northridge ranches once the bathroom subfloor is exposed. The 1994 earthquake damaged thousands of these homes, and many were never properly repaired. We inspect the foundation-to-floor connection during our initial site visit, price any necessary seismic work in the base quote or as a written change order, and never proceed without your signed approval. Call (213) 221-0788 for a free assessment.
We document everything with photos, write a fixed-price change order, and get your signature before touching anything unexpected. This discipline - no work proceeds on a change until the change order is signed - is why our projects finish within a few percent of the agreed price. The photo record is included as standard, so you see exactly what we found and exactly what we propose to fix. Call (213) 221-0788 to schedule your free estimate.
Walk-in shower installation in Northridge runs $4,500-$12,000; tub-to-shower conversion runs $3,500-$10,000. The final number depends on plumbing relocation distance, fixture selection, and whether demolition exposes structural or supply-line issues that need addressing. We quote these as flat prices with written scope, not estimates that balloon later. Call (213) 221-0788 for an exact quote - estimates are free.
Yes. The earthquake legacy means we approach every Northridge bathroom with specific inspection protocols for cripple wall bracing, foundation anchorage, and framing integrity that we don’t use at this intensity in Burbank or Glendale. Many homes here have never been properly retrofitted, and opening a bathroom floor often reveals seismic damage that predates the current owner. We price this work transparently, document it thoroughly, and complete it before any cosmetic installation begins. Call (213) 221-0788 to discuss your home’s specific condition.
We were remodeling a hall bathroom in a 1962 ranch on a quiet street near Northridge Park when we pulled the original subfloor and found the cripple wall studs were unbraced, with visible splitting from decades of minor seismic movement. Before any tile went down, we added plywood shear panels and anchor bolts to the cripple wall, ran new copper rough-in for a Kohler shower valve and Moen fixtures, and installed a frameless glass enclosure over a new tiled shower pan. We wrote the seismic repair as a change order with a fixed price and got the homeowner’s written approval before touching the framing - the final walkthrough passed inspection sign-off with no surprises.
Ready to remodel your Northridge bathroom? Call (213) 221-0788 to schedule your free estimate. We’ll inspect your foundation-to-floor connection, review your existing plumbing and electrical, and deliver a flat written price before any work starts. The 365-Day Done Right Promise, our documented photo record, and The Haven Standard’s no-change-without-signature discipline apply to every project.
Written by Grant Rowan, Owner at Rowan Construction Group, serving Northridge since 2007.







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