Tub-to-Shower Conversion Cost - Fixed Price, One Bathroom at a Time

How Much Does Tub-to-Shower Conversion Cost in West Covina?

A tub-to-shower conversion in West Covina typically costs between $3,500 and $10,000 in 2026, with most standard conversions landing between $5,500 and $8,000. The final number depends on the size of your existing tub footprint, whether you want a prefabricated acrylic system or custom tile work, and how much plumbing reconfiguration is needed. Most West Covina homeowners complete this project in 2 to 5 working days once materials arrive.

If you’re opening your home to a crew for several days, you want to know exactly who’s walking through the door and what the price will be before the first tool comes out. That’s how we work at Mason Remodeling Co West Covina. A written price before any work starts, a crew you can recognize by name and face, and a 365-day guarantee on the finished job. No exceptions.

Key Takeaways

• West Covina tub-to-shower conversions range from $3,500 to $10,000, with most projects falling between $5,500 and $8,000.
• Prefabricated acrylic or fiberglass systems cost less ($3,500-$6,000); custom tile showers run higher ($6,500-$10,000).
• Labor accounts for roughly 50-60% of the total project cost in the West Covina market.
• Permit fees in West Covina for a tub-to-shower swap (when the drain location stays put) typically run $150 to $400.
• Projects with plumbing reconfiguration, accessibility features, or structural repairs can reach $10,000 or more.
• Mason Remodeling provides a written price before work begins, and a live person answers the phone 24/7 at (707) 760-7579.

Tub-to-Shower Conversion Cost Breakdown (2026)

Here’s what the numbers actually look like for a West Covina property. These are real market ranges based on current labor rates, material costs, and permit fees in the San Gabriel Valley.

Cost Component	Typical Range	Notes
Demolition & haul-away	$400-$900	Removing the old tub, surround, and any drywall or backer board behind it.
Plumbing	$300-$1,200	If the existing drain location works, this stays low. Moving the drain or updating old supply lines adds cost.
Shower base / pan	$350-$1,200	Acrylic pan on the low end, custom mortar bed and tile on the high end.
Wall surround or tile	$800-$4,500	Prefabricated acrylic wall systems cost less. Custom tile from floor to ceiling is the biggest variable in the project.
Shower valve & trim	$250-$900	Pressure-balanced or thermostatic valve required by code. Finish and brand affect price.
Glass enclosure or shower door	$400-$1,500	Framed, semi-frameless, or frameless. Frameless glass is the premium option.
Permit	$150-$400	City of West Covina building permit for the alteration, when required.
Finishing (drywall, paint, trim)	$200-$700	Patching and finishing the area around the new shower.

So a straightforward conversion using an acrylic pan and surround kit might look like this: $700 for demo, $450 for plumbing, $400 for the pan, $1,200 for wall surrounds, $400 for a quality valve and trim, $700 for a semi-frameless door, $250 for the permit, and $400 for finishing. That puts you around $4,500 before any surprises. A custom tile shower in a larger tub footprint with a frameless glass enclosure can climb past $9,000 without much effort.

One thing that doesn’t show up in the table: what happens if the subfloor under the old tub has water damage. In West Covina homes built in the 1960s and 1970s (and there are thousands of them, especially in neighborhoods like Woodside and Estates), we regularly find rotted subflooring where water seeped past an old caulk line. When that happens, you’re adding $400 to $1,500 for floor repair before the new pan goes down. A good contractor will warn you this is possible and put a contingency into the written price instead of surprising you with a change order.

If you want a firm number for your specific bathroom, call (707) 760-7579. The estimate is free, and you’ll get a written price you can hold in your hand before you commit to anything.

What Affects Tub-to-Shower Conversion Pricing in West Covina

Two identical houses on the same street can produce very different quotes. Here’s what actually moves the number.

• Your home’s age and the condition of the subfloor. West Covina has a huge inventory of ranch-style homes built between 1955 and 1980. Many of those bathrooms have particleboard or plywood subfloors that have absorbed moisture for decades. If your old tub was original to the house, plan for possible floor repair. Contractors who don’t mention this aren’t doing you any favors.
• Plumbing location and condition. If your tub drain is 1.5 inches in diameter, code requires a 2-inch drain for a shower. That means removing the old P-trap and replacing it, which adds labor and sometimes drywall access from below. If your bathroom is above a crawlspace, this is easy. If it’s on a concrete slab (common in some West Covina hillside homes), it’s a bigger job.
• Material choices. An acrylic wall system and pan from a manufacturer like Kohler or Sterling costs less than custom porcelain tile with a Schluter waterproofing system underneath. Tile work also takes longer, and labor is the largest single line item in any West Covina bathroom project.
• Shower door style. Frameless glass doors run $1,000 to $1,500 installed and require tempered glass measured on-site. Framed or semi-frameless doors cost less but don’t look as clean. It’s a place where you can save money without sacrificing function.
• Accessibility features. A low-threshold or zero-entry shower base, a built-in bench, and grab-blocking behind the walls for future grab bars are common requests from West Covina homeowners planning to age in place. Each adds $200 to $1,800 depending on the scope, but they’re worth doing now rather than retrofitting later.
• Permit requirements. The City of West Covina requires a permit for a tub-to-shower conversion when the work modifies the drain or any structural framing. Some contractors will offer to skip the permit to save you $200 to $400. Don’t do it. Unpermitted work catches up with you at resale and can void your homeowner’s insurance coverage on a future water damage claim.

Is a Tub-to-Shower Conversion Worth It in West Covina?

For most local homeowners, yes. And the math has more to do with daily living than resale value, though resale matters too.

West Covina’s housing stock skews older. That means master bathrooms with standard 60-inch tubs that rarely get used. Homeowners in neighborhoods like South Hills and Cameron Park consistently tell us the same thing: the tub became a step-over obstacle that collected dust, and the shower was cramped. Converting the footprint to a walk-in shower adds usable floor space visually, removes a tripping hazard, and updates a bathroom that may not have been touched since the Reagan administration.

On the resale side, real estate agents in the area generally agree that a well-executed tub-to-shower conversion makes a master bathroom more appealing to today’s buyers, particularly buyers over 50 and families with young children who just need an efficient place to bathe. The return is strongest when the conversion is done cleanly with quality materials, not when it’s the cheapest possible flip. A $4,500 acrylic insert job in a $700,000 house looks cheap. A $7,500 conversion with porcelain tile, a frameless door, and quality fixtures fits the home.

The one caution: if your home has only one bathroom and you have young kids who take baths, removing the only tub can work against you. In that case, consider a Tub-to-Shower Conversion in West Covina that preserves a deep soaking option, or talk through the tradeoffs with a contractor who will give you a straight answer. We will.

How to Save on Tub-to-Shower Conversion

You don’t have to spend $10,000 to get a shower you’ll love. Here’s where the smart money saves.

• Keep the drain where it is. Moving a shower drain is the single most expensive plumbing change in a conversion. If the existing tub drain works with the new pan layout, you save $500 to $1,500 immediately.
• Choose an acrylic or composite wall system instead of tile. That’s the difference between a $4,500 project and a $7,500 project. Modern acrylic surrounds from Kohler and Moen don’t look like the cheap plastic inserts of the 1980s. They’re durable, easy to clean, and install in a day.
• Go semi-frameless instead of frameless on the glass door. You’ll save $300 to $800 and still get a clean look. Frameless glass is beautiful, but it’s the easiest line item to trim.
• Handle one shower at a time. If you have multiple bathrooms, don’t convert them all at once. Do the one you use most, live with it for six months, then decide if you want the same treatment in the guest bath.
• Get the full picture before you sign. A written price that spells out the scope of work, materials, and permit handling protects you from the “verbal estimate that grows” problem. That’s the kind of quote we give on every project, including free estimates. Call (707) 760-7579 and we’ll walk the project with you.

How the Mason Remodeling Process Works for Tub-to-Shower Conversions

You should know exactly what to expect before you ever sign a contract. Here’s the process from the first phone call to the final walk-through.

Step 1: The Call and the Written Price

When you call (707) 760-7579, a live person answers. Not a voicemail tree. Not a callback service. We’ll ask about your bathroom, schedule a site visit, and show up when we say we will. After the visit, you get a written price. Not a ballpark. Not a verbal number. A line-item price on paper. This is not a promotion and it’s never waived. It’s how we’ve done every project since 2004.

Step 2: You Know Who’s Coming

Before any Mason Remodeling crew member steps onto your property, you’ll receive their name and photo. Every technician is background-checked and identity-verified under the Threshold Standard, which has been our operating rule since the company was founded as part of the Threshold Group family. On the day of the job, the crew arrives in clean, marked uniforms and every person shows a photo ID badge at the door. You will never wonder who is in your home.

Step 3: The Work

Demolition comes first, then plumbing, waterproofing, pan installation, walls or tile, valve and trim, glass, and finishing. Most conversions take 2 to 5 working days. We keep the workspace clean at the end of each day, and we tell you honestly if something comes up (like that rotted subfloor we mentioned). If the scope has to change, you’ll get the new number in writing before we proceed.

Step 4: The Guarantee

Every project is covered by the 365-Day Done Right Promise. If anything isn’t right within a year of the completion date, we make it right at no cost to you. That’s a free return visit, no dispute process, no conditions. The guarantee terms are stated plainly in writing, including what’s covered, what’s excluded, and for how long. You’ll know exactly what you’re getting before you sign.

Isaac Pruett, who leads Mason Remodeling Co West Covina, holds every project to this standard. It’s the same standard that has applied to every kitchen remodel, bath remodel, and whole-home project we’ve done in this market.

What’s the Difference Between a Tub-to-Shower Conversion and a Shower Replacement?

A tub-to-shower conversion takes an existing bathtub and turns that footprint into a shower. A shower replacement removes an existing shower and installs a new one in the same space, which costs a bit less on average ($3,000 to $8,500 in West Covina) because the plumbing and drain are already set up for a shower.

Homeowners sometimes use the terms interchangeably, but the pricing and permitting implications are different. A conversion almost always involves changing the drain configuration, which is why permits matter. A replacement often keeps the same rough-in and is more straightforward. If you’re not sure which one applies to your bathroom, call us and we’ll tell you. It takes five minutes to figure out.

Common Mistakes West Covina Homeowners Make on Tub-to-Shower Conversions

These are the things I wish more people knew before they started pulling permits or signing contracts.

• Hiring without verifying the crew. This is the biggest one, and it’s not about craftsmanship. It’s about safety. You’re giving people access to your home for several days. You deserve to know who they are. Ask for names, photos, and proof of background checks. If a contractor balks at that, walk away. Mason Remodeling sends you the crew’s names and photos before the visit, and every person badges at the door. This is the Threshold Standard.
• Skipping the permit. We covered this earlier, but it bears repeating. An unpermitted shower conversion can come back to haunt you in a home sale. West Covina buyers do pull permits when they buy. The $300 you save today becomes a $2,000 problem at closing.
• Choosing the cheapest bid without understanding why it’s cheapest. Sometimes the cheap bid is cheap because the contractor is fast, efficient, and doesn’t carry much overhead. More often, it’s cheap because they’re cutting corners on waterproofing, using substandard materials, or planning to add change orders once the project starts. Ask for a written scope of work. If it’s vague, that’s your answer.
• Forgetting about ventilation. A shower generates a lot more ambient moisture than a tub, especially in a small bathroom. If you don’t already have a properly sized exhaust fan, add one. It’s a $200 to $500 add-on that prevents mold, peeling paint, and bigger problems down the road. We’ll flag this during the estimate if your current fan is undersized.

Tub-to-Shower Conversion Cost vs. Other West Covina Bathroom Projects

If you’re considering a full bathroom remodel, it’s helpful to know how a tub-to-shower conversion fits into the broader cost picture for West Covina homeowners.

• Tub-to-shower conversion: $3,500-$10,000 (this page)
• Walk-in shower installation (new footprint): $4,500-$12,000
• Shower replacement (existing footprint): $3,000-$8,500
• Small bathroom remodel (5×8 or smaller): $5,000-$12,000
• Full bathroom remodel: $9,000-$28,000
• Bathroom vanity installation: $800-$3,000

Many West Covina homeowners bundle a tub-to-shower conversion with a vanity replacement and new flooring to refresh the whole bathroom in one shot. That can push the total to $10,000-$18,000 depending on material choices. If you’re thinking about a larger project, we can price the conversion and the broader remodel separately so you know exactly where the money goes.

Why Choose Mason Remodeling for Your Tub-to-Shower Conversion in West Covina?

We’re not the only contractor in West Covina, and we won’t pretend otherwise. But we do stand behind our work in ways that most don’t.

Since 2004, Mason Remodeling has operated as part of the Threshold Group family of home-service companies. Every location is independently owned and operated, but all of them hold to the same written standards. That means every crew member is background-checked and identity-verified. It means a written price before any work begins, on every project, every time. It means a written guarantee with clearly stated terms. And it means a live person answers the phone 24 hours a day, 7 days a week, including weekends and holidays.

We also bring material partnerships to the table that single-truck operations can’t match. We work with specification-grade products from Kohler, Moen, Toto, and Grohe for fixtures, and Cambria, Silestone, and Caesarstone for surfaces when the project calls for it. For cabinetry and trim, we source from KraftMaid and Wellborn. You get professional-grade materials in one place, which means fewer sourcing mistakes and a cleaner installation.

Isaac Pruett runs the West Covina operation with a simple rule: if the work isn’t right, it gets fixed. That’s the 365-Day Done Right Promise, and it’s in writing on every contract we sign.

FAQs – Tub-to-Shower Conversion Cost

How much does a tub-to-shower conversion cost in West Covina?

A tub-to-shower conversion in West Covina costs $3,500 to $10,000 in 2026, with most projects running between $5,500 and $8,000. The range reflects the difference between a prefabricated acrylic system and a fully custom tile shower with frameless glass. Call (707) 760-7579 for a free written estimate tailored to your specific bathroom.

Is it cheaper to convert a tub to a shower or replace a shower?

Replacing an existing shower is slightly cheaper, running $3,000 to $8,500 in West Covina, because the drain and plumbing rough-in already match a shower configuration. Converting a tub costs $3,500 to $10,000 because the contractor has to remove the tub, modify the drain, and rebuild the floor area before installing the new shower base and surround.

Does a tub-to-shower conversion require a permit in West Covina?

Yes, the City of West Covina requires a building permit for a tub-to-shower conversion when the work modifies plumbing drainage or any structural framing around the opening. Permit fees typically range from $150 to $400. Mason Remodeling handles the permit process as part of the scope of work and includes it in the written price.

How long does a tub-to-shower conversion take in West Covina?

Most tub-to-shower conversions in West Covina take 2 to 5 working days once materials are on site and the permit is issued. A basic acrylic system installs in 2 to 3 days. A custom tile shower with a mortar bed and frameless glass door can take 4 to 5 days, including cure time between waterproofing and tile work.

Can I convert my only bathtub to a shower?

Yes, but if your home has only one full bathroom and you have young children or plan to sell to a family buyer, removing the only tub can narrow your future resale pool. In that case, consider keeping a tub in one bathroom and converting another, or discuss a shower design that preserves some flexibility. We’ll give you a straight answer on whether this move makes sense for your specific home in West Covina.

What’s included in a typical tub-to-shower conversion?

A complete tub-to-shower conversion in West Covina includes demolition and haul-away of the old tub and surround, plumbing modification for the shower drain, installation of a shower base or pan, wall surround or tile with proper waterproofing, a new shower valve and trim, a glass enclosure or shower curtain rod, and finishing work around the new opening. Your written quote should list every one of these line items. Ours does.

Get a Written Price on Your Tub-to-Shower Conversion

If you’re ready to see what your West Covina bathroom could look like with a walk-in shower, the next step is simple. Call (707) 760-7579 and a live person will answer, 24 hours a day, 7 days a week. We’ll schedule a free in-home estimate, walk the project with you, and hand you a written price before you commit to anything.

You’ll know exactly who’s coming, what it costs, and what’s guaranteed. That’s how we’ve done it since 2004, and it’s how we’ll do it for you.

Pricing reflects the West Covina market as of 2026. Mason Remodeling Co West Covina offers free estimates – call (707) 760-7579.

Written by Isaac Pruett, Owner at Mason Remodeling Co West Covina, serving West Covina, CA since 2004.