Waterproofing Contractor Estimate Template
A waterproofing contractor estimate forecasts the price before work starts: 8 lines for install an interior perimeter drain along 90 ft of basement wall with a new sump pump and battery backup, totalling $7,060.00, with materials the largest share (46%). It states its assumptions and stays valid for 30 days. Edit the lines and download the PDF.
Pre-filled for a waterproofing contractor: install an interior perimeter drain along 90 ft of basement wall with a new sump pump and battery backup. Example prices: replace them with your own.
From
Lakeside Waterproofing
622 Market Street
Madison, WI 53703
billing@example.com
(608) 555-0122
Estimate
Prepared for
Robin Okafor
63 Linden Place
Salem, MA 01970
client@example.com
| Description | Qty | Rate | Amount |
|---|---|---|---|
| Jackhammer and remove slab at perimeter12-inch strip along wall, debris removed | 90 linear ft | $18.00 | $1,620.00 |
| Perforated drain pipe in washed stone | 90 linear ft | $24.00 | $2,160.00 |
| Dimple wall membrane behind drainDirects wall seepage into the drain | 90 linear ft | $6.00 | $540.00 |
| Sump basin, lid and 1/3 hp pump | 1 each | $650.00 | $650.00 |
| Battery backup pump with alarm | 1 each | $750.00 | $750.00 |
| Discharge line through rim joist, with freeze guard | 25 linear ft | $14.00 | $350.00 |
| Re-pour concrete over drain | 90 linear ft | $9.00 | $810.00 |
| Seal floor-to-wall cove joint | 90 linear ft | $2.00 | $180.00 |
- Subtotal
- $7,060.00
- Estimate total
- $7,060.00
Notes
A waterproofing estimate should name the walls and footage covered, the drainage method, the pump and backup models, and whether cracks, window wells or grading outside are included.
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Waterproofing Contractor estimate at a glance
| Scope estimated | Install an interior perimeter drain along 90 ft of basement wall with a new sump pump and battery backup |
|---|---|
| Estimate total | $7,060.00 before tax |
| Valid for | 30 days from the estimate date |
| Deposit | Waterproofing firms usually take a deposit at signing and collect the balance after the concrete over the drain is poured. |
| Materials (4 lines) | $3,230.00, 46% |
| Labour (2 lines) | $2,430.00, 34% |
| Products (2 lines) | $1,400.00, 20% |
| Priced in | linear ft |
Estimate breakdown for install an interior perimeter drain along 90 ft of basement wall with a new sump pump and battery backup
| Item | Type | Est. quantity | Est. amount |
|---|---|---|---|
| Jackhammer and remove slab at perimeter | Labour | 90 linear ft | $1,620.00 |
| Perforated drain pipe in washed stone | Materials | 90 linear ft | $2,160.00 |
| Dimple wall membrane behind drain | Materials | 90 linear ft | $540.00 |
| Sump basin, lid and 1/3 hp pump | Products | 1 each | $650.00 |
| Battery backup pump with alarm | Products | 1 each | $750.00 |
| Discharge line through rim joist, with freeze guard | Materials | 25 linear ft | $350.00 |
| Re-pour concrete over drain | Labour | 90 linear ft | $810.00 |
| Seal floor-to-wall cove joint | Materials | 90 linear ft | $180.00 |
| Estimated total | $7,060.00 |
What to write on a waterproofing contractor estimate
A waterproofing estimate should name the walls and footage covered, the drainage method, the pump and backup models, and whether cracks, window wells or grading outside are included.
Materials and products are $4,630.00 of this $7,060.00 estimate (66%), so say how long those prices hold: supplier prices can move before the job starts.
Interior drainage systems are priced by the linear foot of wall treated, with the sump pump, discharge line and any wall membrane listed as separate items.
Assumptions behind each line
Write these next to the 8 lines so the customer sees what the $7,060.00 depends on.
- Jackhammer and remove slab at perimeter: 90 linear ft at $18.00 per linear ft ($1,620.00); extra linear ft at the same rate.
- Perforated drain pipe in washed stone: 90 linear ft at $24.00 ($2,160.00); another grade or brand changes this line.
- Dimple wall membrane behind drain: 90 linear ft at $6.00 ($540.00); another grade or brand changes this line.
- Sump basin, lid and 1/3 hp pump: 1 each at $650.00 ($650.00); another grade or brand changes this line.
- Battery backup pump with alarm: 1 each at $750.00 ($750.00); another grade or brand changes this line.
- Discharge line through rim joist, with freeze guard: 25 linear ft at $14.00 ($350.00); another grade or brand changes this line.
- Re-pour concrete over drain: 90 linear ft at $9.00 per linear ft ($810.00); extra linear ft at the same rate.
- Seal floor-to-wall cove joint: 90 linear ft at $2.00 ($180.00); another grade or brand changes this line.
Changes, overruns and change orders
If the customer adds work, put it on a signed change order first. Pricing the extra in linear ft keeps it comparable with the $7,060.00 you estimated.
A 10% rise in material prices would add $463.00 to this job, which is why many waterproofing contractors limit how long an estimate stays valid.
Tips from basement waterproofing billing
- List the exact walls treated with their lengths, because a later leak on an untreated wall is often reported as a warranty failure of the whole system.
- Record the pump models, horsepower and whether a battery backup or water-powered backup was offered and declined, since flooding during a power cut is the scenario customers bring back to you.
- Say where the discharge line ends and how far it carries water away from the foundation, because water that is pumped out and runs straight back toward the wall will reappear in the drain.
- Separate interior drainage from exterior excavation and membrane work on the invoice, as the two approaches are priced and warranted very differently and customers often compare them.
Turning the waterproofing contractor estimate into an invoice
-
Get it approved
Ask Robin Okafor to sign or reply in writing to estimate EST-1861.
-
Record the changes
Update quantities to what was actually used across the 8 lines.
-
Switch the document type
Change Estimate to Invoice in the tool; the lines and parties stay.
-
Deduct what was paid
Enter any deposit as amount paid so the balance due is correct.
Frequently asked questions
How do I write a waterproofing contractor estimate?
Describe the job (Install an interior perimeter drain along 90 ft of basement wall with a new sump pump and battery backup), list each line with an estimated quantity and rate, total it ($7,060.00 in the sample), state how long it is valid and what it assumes, then send it as a PDF for approval.
Is a waterproofing contractor estimate binding?
An estimate is a forecast, not a fixed price, so the final invoice can differ when the work or materials change. Rules vary by country and state; to stay safe, get written approval before billing noticeably more than the $7,060.00 you estimated.
How long should a waterproofing contractor estimate be valid?
Thirty days is common and is what this template uses. With 66% of the price in materials, a shorter validity protects you if supplier prices rise.