CSI Division 07 · Architectural
Waterproofing Estimating
Membrane and protection area with terminations, transitions and drainage counted per condition — which is where every failure and most of the labor occur.
- SF
- membrane and protection area
- LF
- terminations, joints, reglets
- EA
- penetrations, drains, corners
Scope
What we measure.
Measured from
Foundation sections, below-grade details, roof and plaza details and the waterproofing specification
- 01Sheet Membrane · Below Grade
- 02Fluid-applied · Deck
- 03Flashing & Termination
- 04Drainage Board
- 05Joint Sealant
Where bids go wrong
What other waterproofing estimates miss.
Terminations, transitions and tie-ins, which are where every failure and most of the labor occur.
Substrate preparation and the moisture condition required before the material can be warranted.
Protection course and drainage, without which the membrane does not survive backfill.
Detailing at penetrations, corners and cold joints, counted per condition rather than per area.
Sample takeoff
How waterproofing line items come back.
Every quantity is traceable to the sheet it came from, in the units the trade buys in.
- Quantities traced to the sheet they came from
- Waste and productivity carried as visible lines
- Formulas intact — edit any rate
| CSI | Line item | Quantity |
|---|---|---|
| 07 13 00 | Sheet membrane — below grade | 2,180 SF |
| 07 14 00 | Fluid-applied — deck | 860 SF |
| 07 65 00 | Flashing & termination | 420 LF |
| 07 10 00 | Drainage board | 2,180 SF |
| 07 92 00 | Joint sealant | 380 LF |
FAQ
Waterproofing Estimating, answered.
Talk to an estimator
Not a salesperson. Same-day answers on working days.
+1 518 974 7222[email protected]Do you include below-grade and above-grade waterproofing?
Yes. Below-grade membranes, plaza decks, wet areas and joint sealants are measured as separate systems.
Are protection board and drainage included?
Yes. Protection board, drainage mat and termination details are measured with each system.
Can you use our cost book and labor rates?
Yes, and we prefer it. Your historical costs reflect your crews and your suppliers better than any published average. Send the template and we work inside it.
How does pricing work?
Pricing is per project and quoted before any work starts — no retainer, no minimum volume and no subscription.
Do you sign NDAs?
Yes. Drawings, specifications and pricing are treated as confidential by default, and we sign your NDA on request before any documents change hands.
Start a quote
Need waterproofing numbers for your next bid?
Pick your project type and send the drawings. We confirm the fee and delivery date within the hour on working days.