Sheet membrane assembly
Use a documented compatible sheet system and accessories.
Plan this optionExplore a scope and request a reviewed quote. Coastal confirms service availability, qualified trade partners, site conditions and final pricing before a proposal.
SHOWERS & TUBS
Shower waterproofing
Create the concealed water-management layer behind the shower tile and at the base. The work is defined as a continuous assembly with compatible drains, corners, penetrations, and transitions before tile is installed.
START WITH THE DETAILS
What goes into
the work.
Measure the existing base and wall height. Record drain location and threshold. Final product dimensions and waterproofing compatibility need verification.
Typical scope to confirm
- Confirm substrate, drain type, and the selected waterproofing system
- Detail seams, corners, penetrations, niches, and base-to-wall transitions
- Complete the required water test and record the assembly before covering it
Make it specific to your project.
Enter the amount of work and choose the details you know. Your choices follow you into the Project Builder.
SCOPE-SPECIFIC PRICING
Your scope sets the price.
Concealed waterproofing for a measured shower assembly, including transitions and testing. A numeric range is withheld until the scope and relevant costs are known.
A planning reference for this service only. Selections, local labor, access, quantities and existing conditions need Coastal’s review. Do not add overlapping whole-project and component ranges.
Schluter Systems · Schluter Systems · research checked 2026-10-22
What changes the price
- Total treated area and geometry
- Membrane system and drain compatibility
- Niches, benches, curbs, and penetrations
- Substrate repair and access to existing work
What the reference covers
- Confirm the written scope and responsibility for each item.
Allow for these separately
- Tile, glass, fixtures, and finish surfaces unless listed
- Patching an unverified failed assembly without establishing a repair boundary
- Scope beyond the written proposal
KNOW WHAT COMES NEXT
From first idea to finished work.
Plan the scope
Identify the complete waterproofing system and how it meets the drain and penetrations.
Prepare and approve
Confirm plumbing, substrate condition and product availability before removal.
Complete the work
Install the approved drain/base, waterproofing and walls in the system sequence.
Review and close out
Complete required checks and cure times before use; review seals and care.
- Planning & preparation
- 2–8 weeks
- Work on site
- 4–15 working days
Illustrative planning allowance for the stated scope, not a promised start or completion date. On-site time starts after approvals and materials are ready; procurement, inspection waits, curing and discoveries can extend the calendar.
Tile versus prefabricated walls · Drain relocation and concealed repairs · Waterproofing checks, cure time and glass
PERMIT PLANNING
Check the scope and jurisdiction
New or altered electrical, plumbing and mechanical systems need permit review. Edmond lists limited minor-repair exceptions; OKC directs permitted trade work through licensed, registered contractors.
- New circuits, relocated fixtures or altered piping
- New or altered heating, cooling, gas or exhaust systems
- Changes beyond the local minor-repair exemption
ENGINEERING & DESIGN
Engineering is not usually needed
Engineering is not usually part of this finish-only scope. Stop for review if hidden damage, structural changes or unusual support loads are found.
- New structural work or damaged framing
- Unverified heavy-load support
Confirm requirements with the city or county responsible for the property before work begins. The address, exact scope and adopted code determine the final requirements.
Local permit & engineering sources
Oklahoma City — Development Center requirements ↗ Edmond — when a permit is needed ↗ Edmond — residential alteration checklist ↗MAKE IT FIT YOUR HOME
Your starting options.
Compare the scope before choosing products. Any direction can be refined with Coastal.
MATERIALS & DETAILS
Coordinate the details.
Waterproofing is concealed. Choose the compatible assembly here; visible tile, grout, trim, and wall finishes belong to their separate selections.
Illustrative scope diagram · not a construction detail.
PRODUCT RESEARCH
Brands & real-world examples.
Manufacturer references help compare options. They do not imply a Coastal dealership, endorsement, or a product selected for your project.
Schluter Systems
Tile shower waterproofing, drains, trays, and related components.
Explore example photos
Open the original source for product and installation imagery. These are reference links, not Coastal project photographs.
Manufacturer assembly photographs and diagrams explain the concealed work. Manufacturer inspiration; not a Coastal project photograph.
Stock reference photograph; not a Coastal project or specified product.
YOUR PROJECT, VISUALIZED
Choose a direction.
See it in your space.
Start with common shower waterproofing options, personalize the details, then upload a photo to create an AI concept.
Sheet membrane assembly
Use a documented compatible sheet system and accessories.
- Waterproofing: Approved sheet membrane
- Custom product, finish code, or request: Sheet membrane assembly. Use a documented compatible sheet system and accessories.
Liquid-applied assembly
Select an approved system and follow its coverage, reinforcement, and curing requirements.
- Waterproofing: Approved liquid membrane
- Custom product, finish code, or request: Liquid-applied assembly. Select an approved system and follow its coverage, reinforcement, and curing requirements.
Factory system
Use a coordinated tray, board, seal, and drain assembly.
- Waterproofing: Factory system
- Custom product, finish code, or request: Factory system. Use a coordinated tray, board, seal, and drain assembly.
FROM INSPIRATION TO YOUR SPACE
Explore the scope visually.
For this service, the image is a scope illustration. It cannot verify concealed conditions, engineering, code compliance or permit approval.
- Choose a preset and adjust its selections.
- Add a photo of the room or area.
- Create a concept, compare it, and keep it with your project.
AI concepts are illustrations. Product matches, measurements and feasibility require Coastal’s review.
YOUR NEXT STEP
Bring it into your plan.
Keep rooms, measurements and choices together in the Project Builder.
Related scopes
Research sources & pricing notes
Reviewed 2026-10-23. Published ranges describe the source’s stated scope and geography; they are not an Oklahoma adjustment or a Coastal estimate. Do not add overlapping project ranges together.
- Shower system — Schluter Systems · US national
- KERDI shower kit installation instructions — Schluter Systems · US national
Stock photograph license · Finish swatches and scope diagrams are original illustrations.