How Long Does a Walk-In Shower Conversion Take in Portland, OR?

May 5
4 min read

The full timeline for a walk-in shower conversion in Portland, from the initial consultation through the final walkthrough, runs six to ten weeks for most projects when you hire a Superior general contractor in Portland, OR. The construction phase itself typically takes two to three weeks. The rest of the timeline covers design, material selection, and permit approval through Portland's Bureau of Development Services.

If you are planning around a specific date, that full window is the number to use.

What Happens Before Construction Starts

The weeks before demolition begins are not idle time. Design decisions, permit filings, and material orders all need to happen in sequence before a single tile goes up.

We start with a consultation at your home. We walk through the bathroom, talk through what you want to accomplish, and assess the existing conditions. Colleen Mihalik, our resident designer, works with you on the layout, tile selection, fixture choices, and any accessibility features like grab bars or a zero-threshold entry. Getting the design right before ordering materials prevents mid-project changes that add cost and time.

Once the design is confirmed, we file for permits. Most shower conversions involve plumbing modifications, which require a permit from Portland's Bureau of Development Services. Simple plumbing permits can be approved within a few days. Projects that require plan review may take two to four weeks depending on current BDS workload. We factor this into the project schedule from the start and order materials during the permit window so nothing waits on delivery once construction is approved to begin.

Week-by-Week: What a Standard Conversion Looks Like

While every project is different, here is how the timeline typically plays out for a standard tub-to-walk-in-shower conversion:

Weeks 1 to 2: Consultation, design, and material selection. We meet at your home, develop plans, and finalize your selections. This phase moves at the pace of your decisions, so coming in with a general sense of your preferences helps keep things moving.

Weeks 2 to 4: Permit application and material ordering. We submit to BDS and wait for approval. Materials are ordered during this window so they are on-site when the permit clears.

Weeks 4 to 7: Active construction. Demolition of the existing tub and surround, rough plumbing modifications, subfloor work if needed, waterproofing, tile installation, fixture installation, and finish work. For a single bathroom conversion with a standard tile layout, the build runs about two to three weeks.

Weeks 7 to 10: Inspections, punch list, and final walkthrough. Rough plumbing and tile work require inspection passes. Once all inspections are complete, we wrap up any remaining finish items and walk through the completed space with you before calling the project closed.

What Adds Time to a Shower Conversion

A few conditions consistently push timelines beyond the standard window:

Accessibility features. A roll-in shower with a fully tiled zero-threshold entry requires more intensive waterproofing and sometimes structural modification to the subfloor. These projects are not necessarily longer from a construction standpoint, but the design phase takes more time to get the details right before work starts.

Custom tile work. Large-format tiles, detailed patterns, or full-height tile installations require more labor and careful installation. If your design calls for detailed tilework, build in extra time on the construction end.

Older Portland homes. A significant portion of our work happens in homes built before 1960. When we open walls in these houses, we sometimes find conditions that need to be addressed: deteriorated subfloor, outdated plumbing that requires replacement, or inadequate waterproofing behind existing tile. We communicate any findings immediately and do not proceed with additional scope without your written approval.

ADA and Accessibility Conversions

If your shower conversion includes accessibility features, the timeline and permit process look similar, but the design phase typically takes a bit more time upfront. We work through ADA-compliant dimensions, grab bar placement, and threshold requirements during the design phase so nothing needs to be rebuilt later.

Our post on ADA compliance for walk-in showers in Portland covers the specific dimensional and permit requirements in detail.

Staying in Your Home During the Conversion

Most homeowners stay in their homes during a shower conversion. If the bathroom being converted is your only full bathroom, we talk through scheduling before construction starts so you know how long the space will be out of service and how to plan around it. For most households, this is manageable with some advance planning.

Frequently Asked Questions

Do I need a permit for a walk-in shower conversion in Portland? Yes. Shower conversions almost always involve plumbing changes, which require a permit from Portland's Bureau of Development Services. We handle all permit filings as part of the project.

How long does the construction phase take? Active construction for a standard walk-in shower conversion runs two to three weeks. Total project timeline from first consultation through final walkthrough is six to ten weeks.

What if conditions behind the walls add time? We communicate any unexpected findings immediately, present your options with cost implications, and require written approval before proceeding with any additional scope.

Do you handle all the trades? Yes. We coordinate the plumber, tile setter, and any other trades involved. You have one point of contact throughout the project.

Can you add ADA-compliant features during the conversion? Yes. Grab bars, zero-threshold entries, wider clearances, and other accessibility features can all be incorporated during a conversion. See our post on ADA compliance for walk-in showers in Portland for the specific requirements.

Start Your Remodeling Project With Confidence

Ready to bring your vision to life? Whether you're planning a kitchen upgrade, bathroom renovation, or a full home remodel, CM&D Construction Management & Design is here to guide you every step of the way.

From initial consultation and custom design to planning and construction, their team works closely with you to ensure a smooth, well-managed process and a finished space you’ll truly enjoy.

With decades of experience and a commitment to quality craftsmanship and customer satisfaction, you can trust CM&D to handle your project with care and precision.

Get started today. Reach out to discuss your ideas, explore your options, and take the first step toward your dream space.

Call: 503-655-2198

Email: miles@cmdesigns.net

Or simply visit their website to learn more and request a consultation.

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