Last reviewed May 2026 by WM Construction, Licensed MA General Contractor
Tub to Shower Conversion Cape Cod scope is the licensed targeted bathroom work replacing an existing bathtub with a walk-in shower while preserving the existing plumbing footprint where possible. WM Construction handles Tub to Shower Conversion Cape Cod work across 12 Cape Cod and South Shore towns. Tub to shower conversions on Cape Cod typically run 1 to 2 weeks on site when the conversion works within the existing supply, drain, and vent locations, and 3 to 4 weeks when plumbing relocation is required. The work follows a defined sequence: tub removal and demolition first, then plumbing modification (drain conversion from 1.5 inch tub to 2 inch shower drain is the largest scope element under 248 CMR), then waterproofing membrane installation, then tile or solid-surface wall system, then shower pan installation, then glass enclosure and fixtures. Cape Cod homeowners scope tub to shower conversions for three reasons most often: aging-in-place safety where the tub has become a fall hazard, lifestyle preference where the tub goes unused and shower space is more valuable, or end-of-life tub replacement where converting to shower delivers more functional bathroom space. Licensed Massachusetts General Contractor since 2016, HIC registered, EPA RRP Lead Safe certified, approved Hanscom Air Force Base vendor since 2015, 5.0 rated across 39 verified Google reviews. Call (774) 224-8561 or visit our office at 1550 Falmouth Road, Suite 26, Centerville, MA 02632.
| Configuration | Threshold / Entry | Typical Timeline | Best for |
|---|---|---|---|
| Direct Conversion | Existing footprint, minor mods | 1 to 2 weeks | Sound plumbing, footprint translates |
| Conversion With Curb | 4 to 6 inch threshold | 1 to 2 weeks | Standard walk-in, simpler waterproofing |
| Curbless (ADA-Aligned) | No threshold, recessed drain | 2 to 3 weeks | Aging-in-place, accessibility-focused |
| Full Waterproofing Rebuild | Demolition past tile to substrate | 2 to 4 weeks | Documented water damage history |
Direct conversion replaces the tub with a walk-in shower in the same footprint, preserving the existing supply lines, drain location, and vent stack with minor modifications. Typical timeline 1 to 2 weeks. Best for homeowners wanting the lowest-cost conversion path on bathrooms with sound plumbing and a tub footprint that translates cleanly to shower dimensions.
Conversion with curb installs a 4 to 6 inch threshold at the shower entry, which simplifies waterproofing and is the most common shower configuration. Tile, solid-surface, or prefab shower pan options. Best for general use bathrooms where the curb is acceptable and the cost difference matters. Standard scope for most conversions.
Curbless conversion eliminates the threshold entirely, with the shower floor sloping continuously to the drain at the same level as the bathroom floor. Requires more complex waterproofing and floor structural work to recess the shower drain below the bathroom floor plane. Best for aging-in-place planning, ADA-aligned bathrooms, and accessibility-focused households.
Full waterproofing rebuild applies when the existing tub area shows substrate damage from years of failed waterproofing, requiring demolition past tile to substrate, replacement of damaged sheathing or substrate, and complete waterproofing membrane reinstall. Adds 1 to 2 weeks of timeline beyond standard direct conversion.
A real conversion contractor evaluates the existing plumbing first and works within the supply, drain, and vent locations whenever feasible. Drain conversion from tub (1.5 inch typical) to shower (2 inch standard) is the largest required modification under 248 CMR Massachusetts plumbing code. Preserving plumbing footprint keeps the project at 1 to 2 weeks. Plumbing relocation triples the project complexity and timeline.
The conversion exposes the wet zone substrate, which means waterproofing must be installed correctly the first time. Industry-standard membrane systems (Schluter Kerdi, RedGard, Mapei Mapelastic) installed in the shower pan, walls, and curb where applicable. Conversions that skip the membrane or apply it incorrectly produce water damage at 18 to 36 months that requires complete redo.
Shower pans must slope to the drain at minimum 1/4 inch per foot under ANSI A108 standards. Pre-formed solid-surface pans and tile-on-mortar pans both meet this requirement when installed correctly. Improper slope produces standing water, mold, and grout failure. Real installers verify slope with a level before any tile or finish goes on.
For aging-in-place conversions, ADA-aligned features include curbless entry, slip-resistant floor finish, grab bar blocking installed in the wall framing, comfort-height shower seat or fold-down bench, and handheld shower with adjustable mounting.
Every WM Construction tub to shower conversion scope closes with a written one year workmanship warranty on the install work. Manufacturer warranties on shower pans, fixtures, and waterproofing systems remain separate.
Onsite walkthrough at your Cape Cod home to inspect the existing tub area, assess plumbing condition, identify whether the conversion can run within the existing footprint or whether plumbing relocation is required, and discuss conversion configuration (direct, with curb, curbless, full waterproofing rebuild). Aging-in-place needs identified where applicable. Pre 1978 lead paint flag raised. Typically one hour on site.
You select shower configuration, tile or solid-surface system, glass enclosure type, fixtures, and any ADA-aligned safety features. Selections finalized in writing before contract signing. Estimate breaks out tub demolition, plumbing modification, waterproofing, substrate prep, tile or surface system, shower pan, glass, and fixtures as distinct line items.
Contract signed with milestone schedule. Building permit pulled with the Cape Cod town when scope requires. Plumbing permit pulled separately for drain conversion and supply modifications. Insurance certificates delivered before mobilization. Material delivery coordinated to align with installation start.
Tub removed and disposed. Plumbing modified for shower configuration with drain conversion to 2 inch shower drain. Plumbing inspection scheduled. Substrate prepared. Grab bar blocking installed in framing where ADA features are scoped. Waterproofing membrane installed in pan, walls, and curb where applicable.
Tile or solid-surface walls and pan installed and grouted. Glass enclosure installed. Fixtures and shower hardware connected. Punch list documented and closed. Final walkthrough with the homeowner reviewing slope, fixture function, and finish quality.
Customer Reviews
★★★★★Marcelo and his team did fantastic work. We did a walk through on a Monday, and by Thursday the team was already on the job. They wrapped up the project in only 3 days. They completed a full bathroom remodeling, plus drywall, painting, flooring installation and baseboard in 2 rooms. The finished result is excellent and pricing was very fair!
★★★★★This is the 2nd project Marcelo and his team completed for me. Once again, they did an excellent job! Highly recommended! Very good communication, showed up on time, and expert workmanship.
Most conversions require a plumbing permit under 248 CMR Massachusetts plumbing code because the drain conversion from 1.5 inch tub drain to 2 inch shower drain involves drain modification. Building permits under 780 CMR are typically required for curbless conversions involving floor structural work. Pre 1978 homes also require EPA RRP Lead Safe protocols. WM Construction handles permitting on every project.
Direct conversions within the existing plumbing footprint typically run 1 to 2 weeks on site. Conversions with curbless configurations or full waterproofing rebuild run 2 to 3 weeks. Conversions requiring plumbing relocation run 3 to 4 weeks because the relocation triples plumbing scope. The plumbing assessment during the site visit determines which timeline applies.
Curbless conversions are the strongest aging-in-place configuration because they eliminate the entry threshold that becomes a fall hazard over time. Pair the curbless conversion with grab bar blocking, slip-resistant floor finish, comfort-height seat, and handheld shower for full ADA-aligned safety. Grab bar blocking must be installed during framing, before tile, or retroactive installation requires tile demolition.
Most Cape Cod homes have at least one tub remaining (in a second bathroom, master bath, or hall bath), and most residential buyers prefer at least one bathroom with a tub for child-care or resale flexibility. Tub to shower conversions on the second or master bathroom are widely considered upgrades. Converting the only tub in a single-bath home requires more careful resale consideration.
Rarely the best approach. Tub-area tile typically extends only to tub-surround height (around 6 feet), while shower tile must extend to ceiling or full shower height. Existing tile also frequently shows water damage at the tub interface visible only after demolition.
Converting a tub to a walk-in shower on a Cape Cod home is a targeted scope decision that delivers most of the bathroom remodel value at a fraction of the timeline and cost when the conversion works within the existing plumbing footprint. When you call (774) 224-8561 or request a site visit, Jackeline or Marcelo will walk through your existing tub area, assess plumbing condition, and discuss configuration options including aging-in-place safety features. Our office at 1550 Falmouth Road, Suite 26, Centerville, MA 02632 has served as the base for WM Construction tub to shower conversion projects across Cape Cod since 2016. Call or contact us when you are ready.
