How to Choose the Best Walk-In Shower Installer in Avondale, AZ

Search "best walk-in shower installer in Avondale" and you'll see ads, directories, and a long list of companies all promising a beautiful shower. The trouble is that the most important part of a walk-in shower is the part you can't see. After 35+ years of building showers, here's the honest checklist we'd use ourselves — starting with the one criterion that matters more than all the rest, and including the Avondale questions about permits and very hard water.

1. Waterproofing Is the Make-or-Break

This is the single most important factor, and the one most often cut to win a low bid. Behind every walk-in shower is a waterproofing system — the pan, the wall membrane, the seams and penetrations — and once tile or panels go up, it's invisible. Done right, it lasts for decades. Done wrong, water gets behind the wall and you're looking at rot, mold, and a tear-out within a few years. Before you hire anyone, ask exactly how they waterproof the pan and walls. A real installer can answer in detail and will show you. On a permitted tile shower in Avondale, the city's inspection list includes a pre-slope and shower liner test before tile goes on, so the pan gets checked while it's still visible.

2. Verify the License and Insurance

In Arizona, remodeling contractors must hold an active license with the Registrar of Contractors (ROC). Ask for the ROC number and look it up at roc.az.gov — it's free and takes a minute. Confirm the license is active and in the right classification, and verify general liability insurance and workers' compensation. If an installer can't or won't give you a current ROC number, walk away. (Infinity holds AZ ROC #339999.) Also favor companies that use their own in-house crews over rotating subcontractors — on waterproofing-critical work, consistent crews matter.

3. Ask Who Pulls the City of Avondale Permit

Avondale's building code exempts tiling and similar finish work from a building permit, so retiling an existing shower usually doesn't need one. Plumbing is different: the code's exemption covers stopping leaks, clearing stoppages and resetting a toilet, but not work that replaces or rearranges valves, pipes or fixtures. Most tub-to-shower conversions and new walk-in showers move the drain, replace the valve, or both — and that needs a permit from the City of Avondale's Building Services Division (11465 W. Civic Center Dr., 623-333-4000). The installer should pull it under their ROC license and schedule the inspections, which the city runs Monday through Thursday. Be wary of anyone who suggests skipping it or asks you to pull it yourself. Our Avondale remodeling permits guide has the details.

4. Curbless and Barrier-Free Design

A curbless, barrier-free walk-in shower removes the step-over threshold — safer for everyone and essential if accessibility is a goal. But a true curbless entry depends entirely on correct sloping and waterproofing of the pan so water drains where it should and stays inside the shower. Ask whether the installer has built curbless showers before and how they manage the slope and the linear or center drain to keep water contained. More in our guide to curbless and zero-entry showers.

5. Shower Base and Pan Options

You generally have two paths for the floor of the shower: a custom tile base or a solid-surface pan. A tile base offers the most design freedom but lives or dies by the waterproofing beneath it and has grout to maintain. A solid-surface pan is seamless, easy to clean, and very low-maintenance. Neither is automatically "better" — the right choice depends on your priorities, and a good installer will walk you through the trade-offs instead of pushing only what's easiest for them.

6. Glass and Fixtures for Very Hard Water

Glass changes both the look and the budget. Frameless glass gives a clean, open, high-end appearance and shows off the tile or panels, but costs more. Framed and semi-frameless enclosures are more economical and still durable. Water matters here too: Avondale's tap water blends city well water with Colorado River water, and the city's 2022 water quality report put city well water at about 21 grains per gallon — "very hard" on the report's own scale. That means white spotting on glass and scale on showerheads and valve cartridges. Ask about glass coatings that resist mineral spotting and make cleaning easier, and about fixtures with cartridges that are easy to service. The right installer will match the glass to your style and your budget honestly. See our guide to faucets and fixtures for hard water.

7. Low-Maintenance Groutless Systems, Estimates, and Warranty

If easy upkeep is a priority, ask about groutless solid-surface shower systems — they have few or no grout lines to scrub, seal, or watch for mildew, which makes them far easier to keep clean than traditional tile, and they give hard-water deposits fewer places to settle. Whatever system you choose, insist on a clear, itemized written estimate covering scope, materials, permits, and timeline, and ask exactly what the workmanship warranty covers and for how long. Then look at reviews and a real portfolio of completed showers.

8. City Rebates and Programs Worth Knowing

If you're a City of Avondale water customer replacing an older showerhead, the city's Low Flow Plumbing Rebate pays $25 per showerhead that uses less than 2.6 gallons per minute (and $75 per toilet at 1.6 gallons per flush or less). Apply within a year with a dated receipt; it's first come, first served. For accessibility work, the city's Home Repair Program (Neighborhood & Family Services, 623-333-2703) lists accessible showers and tubs, grab bars and other ADA changes among the work it can help with for owner-occupied homes on city water — call the city to ask about eligibility. A good installer will point these out rather than leave the money on the table.

Red Flags to Avoid

• No clear answer on how they waterproof the pan and walls
• No ROC number, or one that doesn't check out at roc.az.gov
• Suggesting you skip the permit when the drain or valve changes
• Large upfront cash deposit demands
• Pressure to decide today or "today-only" pricing
• Vague, one-line estimates with no scope or timeline
• No proof of insurance or workers' compensation

Questions to Ask Before You Sign

• Exactly how do you waterproof the shower pan and walls?
• What's your ROC license number, and are you insured?
• Does my project need a City of Avondale permit, and will you pull it?
• Have you built curbless showers, and how do you manage the slope and drain?
• Do you recommend a tile base or a solid-surface pan for my project, and why?
• What glass, coatings and groutless options do you offer for very hard water?
• What does my written estimate include, and what warranty do you provide?

How Infinity Measures Up

We built this checklist around how we work: waterproofing done right on every shower — pan, walls, and seams — because we know it's what makes a shower last; licensed (AZ ROC #339999), bonded, and insured; our own in-house crews from first measurement to final walkthrough; City of Avondale permits pulled for our work, with the inspections scheduled for you; curbless and barrier-free designs when you want them; a full range of bases, pans, glass, and low-maintenance groutless systems to fit your style and budget; detailed written estimates; a workmanship warranty; and factory-direct pricing. We're family-owned, in business since 2011, with 35+ years of experience, and our Avondale location is at 316 N Central Ave (by appointment). If you're comparing installers, we'd welcome the chance to earn your project — we'll come to your Avondale home for a free in-home consultation and answer every question above.

Frequently Asked Questions

Related Reading

• Walk-In Shower Services
• Walk-In Shower Cost Guide
• Showers & Tub Conversions
• Tub-to-Shower Conversion
• Avondale Remodeling Permits
• Choosing a Bathroom Remodeler
• Read Our Reviews
• Best Shower Niche and Bench Ideas (2026)