Insulation Invoice Template

An insulation invoice documents thermal barrier installation including R-value ratings, square footage, insulation type (fiberglass, spray foam, cellulose), and air sealing work. Create professional insulation contractor invoices with NetInvoice's free template for residential and commercial projects.

Why this invoice template matters

Insulation work directly impacts energy bills but customers rarely understand R-values and coverage calculations. Detailed invoices show insulation type, R-value achieved, square footage covered, and ventilation considerations. This helps customers understand why spray foam costs more than fiberglass and how proper insulation saves money long-term. Clear invoicing also documents energy code compliance and provides verification for utility rebate applications that require professional installation receipts.

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Example line items

DescriptionQtyUnitUnit PriceTotal
R-38 blown-in fiberglass insulation1200sq ft$1.35$1620.00
R-19 batt insulation (walls)800sq ft$0.95$760.00
Air sealing and foam gaskets1lot$275.00$275.00
Vapor barrier installation800sq ft$0.45$360.00
Attic ventilation baffles48ea$3.50$168.00
Blown insulation material42bags$18.00$756.00
Total:$3939.00

Common invoice notes

  • Total attic R-value increased from R-11 to R-38.
  • All work meets current energy code requirements.
  • Estimated annual energy savings: $400-$600.

How to create this invoice

  1. 1Calculate square footage by area: attic, walls, crawlspace.
  2. 2Specify insulation type and R-value for each application.
  3. 3List material quantities: bags, rolls, or board feet.
  4. 4Include air sealing and gap filling labor and materials.
  5. 5Document vapor barriers or radiant barriers if installed.
  6. 6Add ventilation baffles or modifications needed.
  7. 7Note energy code compliance and utility rebate eligibility.

Frequently Asked Questions

How do insulation contractors charge for installation?
Insulation is priced per square foot: fiberglass batts ($0.80-$1.50/sq ft), blown-in ($1.00-$1.80/sq ft), spray foam ($1.50-$3.50/sq ft). Higher R-values and difficult access increase costs.
What is R-value and why does it matter on invoices?
R-value measures thermal resistance. Higher R-values provide better insulation but cost more. Always specify R-value on invoices (R-19, R-30, R-38, etc.) to document energy performance and code compliance.
Should insulation invoices separate materials from labor?
Yes, itemize insulation materials (bags, rolls, board feet) separately from installation labor. This transparency helps customers understand material quality choices and makes warranty tracking easier.
How do you invoice for air sealing along with insulation?
Air sealing is a separate service ($200-$800) that dramatically improves insulation performance. Always itemize it separately to show the added value and justify the additional cost beyond basic insulation.

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