Bathroom Waterproofing Quote Template
Free bathroom waterproofing quote template compliant with AS3740. Covers membrane, bond breaker, corners, and wet area waterproofing for showers, floors, and balconies.
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Or try it on the web →This bathroom waterproofing quote template is for builders and waterproofers on domestic wet area jobs. It suits standard renovations and new builds. Most tradies get tripped up quoting two things: the labour for proper substrate preparation, which can vary wildly, and forgetting to price in the compliance certificate and the liability that comes with it. Get those two items right and you’ll protect your margin. This template helps you remember every line item so you can quote accurately and get on with the job.
How to Price Waterproofing Labour and Materials
For a standard bathroom, think per square metre. A typical job is around 10-15m² including the floor, shower walls, and hob. Your main cost is the membrane. A 15L pail of Crommelin Shower Waterproofing Membrane from Bunnings costs about $215 and covers roughly 10m² for two coats. Factor in primer, bond breaker tape, and reinforcing fabric, adding another $80-$100. Labour is the biggest variable. Allow 4-6 hours at your standard rate, say $70/hr, for prep and two coats. All up, you should be quoting around $750-$1000 for a standard bathroom, depending on site conditions.
What Tradies Forget on a Waterproofing Quote
The biggest mistake is quoting for a perfect surface. Most bathroom floors need grinding or a skim coat before you can even open the primer. Add a line item for substrate preparation. Second, tradies forget the cost of compliance. You're signing a legal document that says your work meets AS 3740-2010. This carries risk and insurance cost, so add $50-$150 for issuing the certificate. Using a quoting app like QuoteMate makes it easy to save these easily-forgotten items as standard line items. Finally, factor in travel time for the second coat, as you can’t do it all in one visit.
Materials Included
- Liquid waterproofing membrane
- Reinforcing tape (corners and joints)
- Bond breaker tape
- Primer / sealer
- Hob formwork (shower)
- Waterproofing certificate
Quoting Steps
- 1Measure wet area floor and wall zones
- 2Prepare substrate (clean, prime, repair)
- 3Apply bond breaker to internal corners
- 4Apply reinforcing tape to all joints
- 5Apply 2 coats of membrane with drying time
- 6Issue waterproofing compliance certificate
Frequently Asked Questions
A porous concrete slab needs more primer than fibre cement sheet. Budget for an extra litre of primer and 30 minutes of labour if you’re working on old, thirsty concrete. Always inspect the site first. Villaboard is straightforward, but old concrete can hide problems. Check the specific membrane's data sheet, like for Davco K10, for primer requirements.
Yes, always. Flood testing takes time. You have to dam the doorway, fill the area with water for 24 hours, then drain and dry it. This adds at least half a day of site visits and follow-up. Price it as a separate line item for $200-$300, as it's a critical quality check under AS 3740.
Add a 10% waste factor for your liquid membrane, as some always gets left in the pail or dries on rollers. For reinforcing tape and bond breakers, add 15%, especially for complex layouts with multiple corners or niches. It's better to have a bit left over than to stop the job for another trip to Bunnings.
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