Insulation Contractor Estimate Template
An insulation contractor estimate forecasts the price before work starts: 8 lines for air-seal an attic and blow in cellulose to R-49 over 1,200 sq ft, totalling $4,717.00, with services the largest share (54%). It states its assumptions and stays valid for 30 days. Edit the lines and download the PDF.
Pre-filled for an insulation contractor: air-seal an attic and blow in cellulose to r-49 over 1,200 sq ft. Example prices: replace them with your own.
From
Riverside Insulation
285 Market Street
Salem, MA 01970
billing@example.com
(978) 555-0185
Estimate
Prepared for
Sam Patel
14 Elm Street
Madison, WI 53703
client@example.com
| Description | Qty | Rate | Amount |
|---|---|---|---|
| Remove and bag damaged insulation | 300 sq ft | $1.40 | $420.00 |
| Air sealing at top plates and penetrationsFoam and caulk at wiring, plumbing and light openings | 1,200 sq ft | $0.90 | $1,080.00 |
| Insulated attic hatch cover | 1 each | $165.00 | $165.00 |
| Rafter vent baffles at soffits | 28 each | $6.50 | $182.00 |
| Blown cellulose to R-49, about 13.5 in deep | 1,200 sq ft | $1.85 | $2,220.00 |
| Insulation dams at chimney and recessed lights | 6 each | $30.00 | $180.00 |
| Blower door test, before and after | 2 each | $175.00 | $350.00 |
| Disposal of removed insulation | 1 each | $120.00 | $120.00 |
- Subtotal
- $4,717.00
- Estimate total
- $4,717.00
Notes
An insulation estimate should state square footage, target R-value and depth, the material, the air sealing scope and whether removal of old insulation is included.
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Insulation Contractor estimate at a glance
| Scope estimated | Air-seal an attic and blow in cellulose to R-49 over 1,200 sq ft |
|---|---|
| Estimate total | $4,717.00 before tax |
| Valid for | 30 days from the estimate date |
| Deposit | Deposits are uncommon on one-day attic jobs; larger spray-foam projects often take a materials deposit. |
| Services (2 lines) | $2,570.00, 54% |
| Labour (2 lines) | $1,500.00, 32% |
| Materials (2 lines) | $362.00, 8% |
| Priced in | sq ft |
Estimate breakdown for air-seal an attic and blow in cellulose to R-49 over 1,200 sq ft
| Item | Type | Est. quantity | Est. amount |
|---|---|---|---|
| Remove and bag damaged insulation | Labour | 300 sq ft | $420.00 |
| Air sealing at top plates and penetrations | Labour | 1,200 sq ft | $1,080.00 |
| Insulated attic hatch cover | Products | 1 each | $165.00 |
| Rafter vent baffles at soffits | Materials | 28 each | $182.00 |
| Blown cellulose to R-49, about 13.5 in deep | Services | 1,200 sq ft | $2,220.00 |
| Insulation dams at chimney and recessed lights | Materials | 6 each | $180.00 |
| Blower door test, before and after | Services | 2 each | $350.00 |
| Disposal of removed insulation | Fees | 1 each | $120.00 |
| Estimated total | $4,717.00 |
What to write on an insulation contractor estimate
An insulation estimate should state square footage, target R-value and depth, the material, the air sealing scope and whether removal of old insulation is included.
Materials and products are $527.00 of this $4,717.00 estimate (11%), so say how long those prices hold: supplier prices can move before the job starts.
Prices by the square foot at a stated R-value or depth, with air sealing, removal of old insulation and baffles billed as extra lines.
Assumptions behind each line
Write these next to the 8 lines so the customer sees what the $4,717.00 depends on.
- Remove and bag damaged insulation: 300 sq ft at $1.40 per sq ft ($420.00); extra sq ft at the same rate.
- Air sealing at top plates and penetrations: 1,200 sq ft at $0.90 per sq ft ($1,080.00); extra sq ft at the same rate.
- Insulated attic hatch cover: 1 each at $165.00 ($165.00); another grade or brand changes this line.
- Rafter vent baffles at soffits: 28 each at $6.50 ($182.00); another grade or brand changes this line.
- Blown cellulose to R-49, about 13.5 in deep: 1,200 sq ft, $2,220.00.
- Insulation dams at chimney and recessed lights: 6 each at $30.00 ($180.00); another grade or brand changes this line.
- Blower door test, before and after: 2 each, $350.00.
- Disposal of removed insulation: a flat $120.00.
Changes, overruns and change orders
If the customer adds work, put it on a signed change order first. Pricing the extra in sq ft keeps it comparable with the $4,717.00 you estimated.
A 10% rise in material prices would add $52.70 to this job, which is why many insulation contractors limit how long an estimate stays valid.
Tips from insulation work billing
- State the R-value, installed depth and number of bags used, which is exactly what utility rebate programs and energy auditors check before they pay out.
- Print the blower door readings from before and after air sealing, because that drop in leakage is the clearest proof the sealing work was worth paying for.
- Many efficiency rebates and tax credits need air sealing and insulation shown separately, so never merge them into one attic line.
- Staple an attic card near the hatch with the same depth and date as the invoice, and mention on the invoice where the owner can find it.
Turning the insulation contractor estimate into an invoice
-
Get it approved
Ask Sam Patel to sign or reply in writing to estimate EST-6634.
-
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 an insulation contractor estimate?
Describe the job (Air-seal an attic and blow in cellulose to R-49 over 1,200 sq ft), list each line with an estimated quantity and rate, total it ($4,717.00 in the sample), state how long it is valid and what it assumes, then send it as a PDF for approval.
Is an insulation 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 $4,717.00 you estimated.
How long should an insulation contractor estimate be valid?
Thirty days is common and is what this template uses. With 11% of the price in materials, a shorter validity protects you if supplier prices rise.