Commercial Bathrooms

Commercial Bathroom Remodel in Portland, Oregon

A commercial bathroom remodel is one of the highest-impact upgrades a Portland business owner can make. Whether you manage an office building in the Pearl District, a restaurant on Division Street, or a retail space in Tigard, your restrooms shape how customers and employees perceive your business every single day. Outdated fixtures, cracked tile, poor ventilation, and non-compliant layouts cost you more than aesthetics — they cost you code violations, water waste, and lost trust.

Boss PDX (CCB #232383) is a Portland general contractor that specializes in commercial bathroom renovations across the metro area. We handle everything from single-occupancy ADA conversions to full multi-stall buildouts — plumbing infrastructure, partition systems, waterproofing, flooring, ventilation, and fixture installation — all managed under one contract so your project stays on schedule and your business stays open.

Why Portland Businesses Remodel Commercial Bathrooms

Commercial restrooms take more abuse than any other space in a building. High foot traffic, constant moisture exposure, and heavy daily use wear down finishes, fixtures, and plumbing systems faster than residential bathrooms by an order of magnitude. Portland's climate adds another layer — the sustained humidity of our nine-month wet season accelerates mold growth behind walls and under flooring if waterproofing membranes have degraded.

The most common triggers we see for commercial bathroom remodels in the Portland metro area include:

• ADA compliance gaps — older buildings constructed before the 1991 ADA Standards often lack compliant clearances, grab bar mounting, or accessible fixtures
• Aging plumbing infrastructure — cast iron drains corroding from the inside, galvanized supply lines restricting flow, and undersized waste lines that cannot handle current fixture counts
• Tenant improvements — new tenants moving into a space that needs restroom capacity adjusted for a different occupancy type or headcount
• Water damage and mold — failed waterproofing membranes, leaking supply lines behind walls, or inadequate ventilation creating persistent moisture problems
• Energy and water efficiency — replacing high-flow fixtures with low-flow and touchless alternatives to reduce utility costs and meet Oregon's green building incentives
• Brand and customer experience — restaurants, hotels, and retail spaces where restroom quality directly affects reviews and repeat business

ADA-Compliant Commercial Restrooms

ADA compliance is not optional in commercial restrooms, and getting it wrong exposes your business to lawsuits, fines, and forced remediation. The 2010 ADA Standards for Accessible Design govern everything from door width and turning radius to fixture mounting heights and grab bar placement. Oregon's building code layers additional requirements through the Oregon Structural Specialty Code (OSSC), which adopts and amends the International Building Code.

Boss PDX builds every commercial restroom to full ADA compliance. Our scope on accessibility work includes:

• Clear floor space — minimum 60-inch turning radius for wheelchair access in each accessible stall, with 36-inch minimum clear width at the entry door
• Compliant fixture heights — toilets mounted at 17 to 19 inches (measured to the top of the seat), lavatories with knee clearance at 27 inches minimum, and mirrors with the bottom edge no higher than 40 inches above the finished floor
• Grab bars — 42-inch side grab bar and 36-inch rear grab bar at accessible water closets, mounted at 33 to 36 inches above the finished floor, anchored to blocking rated for 250 pounds of force
• Accessible hardware — lever-operated faucets or touchless sensors, door hardware operable without tight grasping or twisting, and automatic door closers adjusted to a five-second minimum sweep
• Signage — tactile and Braille restroom identification signs mounted on the latch side of doors at 48 to 60 inches above the finished floor

If your Portland commercial property was built before 1992, there is a high probability your restrooms do not meet current ADA standards. We perform complimentary assessments to identify specific deficiencies and prioritize corrections within your budget.

Commercial Fixtures and Touchless Technology

Commercial restroom fixtures are engineered for an entirely different duty cycle than residential products. A restaurant bathroom might see 300 to 500 uses per day. Residential-grade faucets, flush valves, and soap dispensers cannot survive that volume. We install commercial-grade fixtures from Sloan, Zurn, American Standard, and Toto, selected for the traffic level of your space:

• Touchless flush valves — sensor-activated flushometers that eliminate handle contact, reduce cross-contamination, and use precisely metered water volumes (1.28 GPF for water closets, 0.5 GPF for urinals)
• Touchless faucets — infrared sensor-activated lavatory faucets with 0.5 GPM aerators, reducing water consumption by up to 70% compared to manual faucets
• High-speed hand dryers — energy-efficient units that dry hands in 10 to 15 seconds, eliminating paper towel waste and reducing ongoing supply costs
• Automatic soap dispensers — wall-mounted touchless units with refillable cartridges, reducing soap waste and improving hygiene
• Commercial toilets and urinals — floor-mounted or wall-hung vitreous china fixtures with exposed or concealed flushometers, sized for the specific drain infrastructure of your building

Touchless technology has moved from a luxury to a baseline expectation in Portland's commercial spaces. We design every installation for both hygiene and longevity, with accessible power for sensor-operated fixtures and properly located shut-off valves for maintenance access.

Partition Systems and Multi-Stall Layouts

The partition system defines the functionality and feel of a multi-stall commercial restroom. We work with four primary partition materials, each suited to different environments:

• Solid plastic (HDPE) — the workhorse for most commercial applications; moisture-proof, graffiti-resistant, and virtually indestructible in high-traffic environments like restaurants and retail
• Phenolic core — premium panels with a decorative laminate face, ideal for upscale offices, hotels, and restaurants where aesthetics matter as much as durability
• Stainless steel — maximum vandal resistance for public-facing restrooms with heavy or unsupervised use
• Powder-coated steel — a cost-effective option for office buildings and low-vandalism environments where budget is the primary driver

Layout design for multi-stall restrooms requires planning for traffic flow, ADA clearance, plumbing chase access, and ventilation distribution. A three-stall women's restroom, for example, needs approximately 100 square feet to accommodate one ADA-compliant stall, two standard stalls, a two-basin lavatory counter, and adequate circulation space.

Ventilation and Moisture Control

Portland's climate makes ventilation in commercial restrooms a critical building-science issue, not just a comfort feature. The Oregon Mechanical Specialty Code (OMSC) requires mechanical exhaust ventilation in all commercial restrooms at a minimum rate of 75 CFM per water closet or urinal. Inadequate ventilation leads to condensation on cold surfaces, mold colonization in wall cavities, and odor complaints that drive away customers.

Our ventilation scope includes properly sized inline or ceiling-mounted exhaust fans, dedicated ductwork routed to exterior termination points (never into attic spaces or soffits), makeup air provisions to maintain building pressure balance, and humidity-sensing controls that adjust fan speed based on actual moisture levels.

Waterproofing and Commercial Flooring

Waterproofing failure is the most expensive problem in a commercial restroom. When moisture penetrates the substrate through failed membranes, cracked grout, or inadequate curbing, it damages structural framing, grows mold in concealed cavities, and compromises the floor structure below.

We install sheet-applied and liquid-applied waterproofing membranes on all wet-area substrates before any finish material goes down, using Schluter DITRA and Laticrete Hydro Ban systems with full coverage on floors, curbs, and wall substrates to a minimum height of 72 inches in shower areas.

For finished flooring, commercial restrooms demand materials that can handle standing water, chemical cleaners, and heavy foot traffic simultaneously. Our most-specified commercial restroom flooring options include:

• Porcelain tile — large-format rectified porcelain with a minimum 0.60 DCOF (dynamic coefficient of friction) wet rating for slip resistance, installed over waterproofing membrane with epoxy grout for chemical resistance and stain prevention
• Epoxy flooring — seamless, monolithic resinous flooring systems that eliminate grout joints entirely, providing a fully waterproof and chemical-resistant surface ideal for restaurant kitchens, breweries, and industrial restrooms
• Luxury vinyl tile (LVT) — commercial-rated LVT with welded seams for budget-conscious projects that still need moisture resistance and easy maintenance
• Quarry tile — unglazed ceramic tile with excellent slip resistance and chemical resistance, commonly specified for commercial kitchen and restaurant restroom applications

Learn more about our commercial flooring capabilities for projects that extend beyond the restroom.

Commercial Plumbing and Drain Sizing

Commercial plumbing and pipe fitting operates under fundamentally different engineering standards than residential work. The Oregon Plumbing Specialty Code (OPSC) governs fixture unit calculations, drain sizing, venting requirements, and backflow prevention for all commercial installations.

Drain sizing in commercial restrooms is calculated using drainage fixture units (DFU). A water closet contributes 4 DFU, a lavatory contributes 1 DFU, and a urinal contributes 2 DFU. These fixture units determine the minimum pipe diameter for each branch, the building drain, and the building sewer. A restroom with four water closets, two urinals, and three lavatories, for example, requires a minimum 3-inch branch drain feeding into a 4-inch building drain.

Oregon plumbing code also dictates minimum fixture counts based on occupancy type and occupant load. A restaurant (Assembly A-2) requires one water closet per 75 male occupants and one per 40 female occupants, plus one lavatory per 200 occupants. An office (Business B) requires one water closet per 25 occupants of each gender and one lavatory per 40 occupants. Getting these counts wrong means failing plan review at the City of Portland Bureau of Development Services.

Boss PDX handles all commercial plumbing in-house, from demolition of existing drain lines through final fixture connection and testing. We coordinate directly with City of Portland, Clackamas County, and Washington County inspection departments to ensure your project passes the first time.

Restaurant, Office, and Retail Bathroom Remodels

Restaurant Bathrooms

Portland's restaurant industry demands restrooms that can handle extreme peak loads during service hours while meeting the exacting hygiene standards of the Oregon Health Authority. We build restaurant restrooms with commercial-grade waterproofing, epoxy or quarry tile flooring that withstands chemical sanitizers, touchless fixtures to minimize cross-contamination, and ventilation systems sized for the intense humidity generated by adjacent kitchen operations. Floor drains with proper trap primers ensure sanitary drainage without dry-trap sewer gas issues.

Office Bathrooms

Office restroom remodels focus on fixture count compliance for the occupant load, ADA accessibility for all users, durable finishes that maintain a professional appearance over years of daily use, and efficient plumbing systems that minimize maintenance calls. We frequently work with property managers and tenant improvement contractors across Portland's central business district and suburban office parks to upgrade restrooms as part of broader commercial renovation projects.

Retail Bathrooms

Retail restrooms — whether customer-facing or employee-only — need to balance durability against vandalism, ease of maintenance for minimal staffing, and compliance with public accommodation requirements under the ADA. We design retail restrooms with vandal-resistant fixtures, stainless steel or solid plastic partitions, and finishes that can be cleaned quickly between customer uses.

Phased Construction to Keep Your Business Open

Closing your business for a restroom remodel is rarely an option. A restaurant that shuts down for two weeks loses tens of thousands of dollars in revenue. An office building with 200 occupants cannot simply lock all the restrooms at once.

Boss PDX plans every commercial bathroom remodel with phased construction schedules designed to keep your business operational throughout the project. For multi-stall restrooms, we typically remodel one side at a time, maintaining at least one functional ADA-compliant restroom at all times. For single-restroom businesses, we coordinate with building management to arrange temporary facilities or schedule work during off-hours and weekends.

Our phased approach includes:

• Pre-construction planning — detailed sequencing that identifies which restrooms will be offline during each phase and ensures code-compliant alternatives are available
• Dust and noise containment — temporary barriers, negative-air machines, and scheduled demolition windows to minimize disruption to adjacent occupied spaces
• Accelerated schedules — prefabricated partition systems, pre-assembled fixture carriers, and fast-cure waterproofing and flooring systems that compress timelines without sacrificing quality
• After-hours and weekend work — available for projects where daytime construction would be unacceptable for tenants or customers

Commercial Bathroom Remodel Costs in Portland

Commercial bathroom remodel costs in Portland vary based on scope, fixture count, existing plumbing condition, finish selections, and ADA requirements. As a general guide:

• Single-occupancy ADA restroom renovation — $15,000 to $35,000, depending on the extent of plumbing modifications and finish selections
• Multi-stall restroom remodel (3 to 5 stalls) — $40,000 to $120,000, depending on fixture count, partition type, and whether plumbing infrastructure needs replacement
• Full commercial restroom buildout in new tenant space — $60,000 to $200,000+, including new plumbing rough-in, waterproofing, partitions, fixtures, ventilation, and finishes
• Restaurant restroom renovation — $25,000 to $75,000, reflecting the additional requirements for floor drains, commercial-grade waterproofing, and health code compliance

These ranges reflect 2026 Portland-area pricing including materials, labor, permits, and inspections. Every project is different — request a free estimate to get an accurate number for your space.

Frequently Asked Questions

How long does a commercial bathroom remodel take in Portland?

Timeline depends on scope. A single-occupancy ADA restroom renovation typically takes two to three weeks from demolition to final inspection. A multi-stall restroom remodel with plumbing infrastructure replacement runs four to eight weeks. If we are phasing the work to keep your business open, the overall calendar duration may be longer, but the disruption to any single restroom is minimized. Permitting through the City of Portland Bureau of Development Services typically adds two to four weeks before construction begins.

Do I need a permit for a commercial bathroom remodel in Portland?

Yes. Any work involving plumbing modifications, electrical changes, mechanical ventilation, or structural alterations requires trade permits from the City of Portland or the applicable jurisdiction (Clackamas County, Washington County, City of Beaverton, City of Tigard, etc.). Moving or adding fixtures, changing drain routing, or modifying ventilation all trigger permit requirements. Boss PDX handles all permit applications, plan submissions, and inspection scheduling as part of our scope.

How many restroom fixtures does my commercial building need under Oregon code?

The Oregon Plumbing Specialty Code sets minimum fixture counts based on occupancy type and occupant load, calculated from the building's square footage and use classification. For example, a 3,000-square-foot restaurant (Assembly A-2, 15 sq ft per occupant = 200 occupants) requires a minimum of three water closets for women, two water closets and one urinal for men, and two lavatories. An office of the same size (Business B, 100 sq ft per occupant = 30 occupants) requires one water closet for each gender and one lavatory. We calculate exact fixture counts during the design phase and verify compliance with the plan review authority before construction.

Can you remodel our commercial bathroom while we stay open for business?

Absolutely — this is how we handle the majority of our commercial bathroom projects. We plan phased construction that keeps at least one code-compliant restroom available at all times. For multi-restroom buildings, we remodel one at a time. For single-restroom locations, we coordinate after-hours and weekend work or arrange temporary facilities.

What is the best flooring for a commercial bathroom?

For most commercial restrooms in Portland, we recommend large-format porcelain tile with epoxy grout. It offers excellent slip resistance (when specified with a DCOF rating of 0.60 or higher), chemical resistance to commercial cleaning products, waterproof performance when installed over a proper membrane, and a professional appearance that holds up for 15 to 20 years. For restaurants, breweries, and industrial facilities where seamless waterproofing is critical, epoxy flooring systems eliminate grout joints entirely and provide a monolithic, chemical-resistant surface. Our commercial flooring team can walk you through the options for your specific application.

Do commercial bathrooms need to be ADA compliant?

Yes. Under the ADA, all commercial facilities open to the public or used by employees must provide accessible restrooms. Existing buildings undergoing renovation must bring restrooms into compliance to the maximum extent feasible. New construction and gut-renovations must meet full 2010 ADA Standards. Oregon's OSSC accessibility provisions in some cases exceed federal minimums. Non-compliance exposes business owners to civil rights complaints, lawsuits, and mandatory remediation orders.

What touchless fixtures do you recommend for commercial restrooms?

We primarily install Sloan and Zurn sensor-operated flush valves, faucets, and soap dispensers. These manufacturers offer the most reliable sensor technology, the widest range of commercial trim options, and the best parts availability for long-term maintenance. For flush valves, we specify Sloan ECOS or Zurn AquaSense sensor flushometers. For faucets, Sloan EAF or Zurn AquaSense deck-mount sensor faucets with 0.5 GPM aerators. Touchless fixtures reduce water consumption, improve hygiene, and lower maintenance costs compared to manual alternatives.

Start Your Commercial Bathroom Remodel

Boss PDX has the crew, the licenses, and the experience to handle your commercial bathroom remodel from demolition through final inspection — on schedule and on budget. Whether you need a single ADA restroom conversion or a full multi-stall buildout across multiple floors, we will put together a detailed scope and phased construction plan tailored to your business.

Request your free estimate or call us at 844-BOSS-PDX to get started. We serve Portland, Beaverton, Tigard, Lake Oswego, Hillsboro, Clackamas, and the greater metro area.