Spray Foam and Attic Insulation Invoicing App (2026)
Insulation work is quoted by square foot for blown-in and by board foot for spray foam, with removal, air sealing, and ventilation as separate lines — and much of it is funded by utility rebates that require specific itemization. ShowTheReceipts ($15/mo) saves those rates, itemizes in the format a rebate reviewer needs, and takes a deposit on jobs where the foam is ordered ahead.
How we picked
Entry-plan prices as published in 2026, taken from each vendor's own pricing page or a recent third-party summary. Judged on the solo contractor's real workflow — square-foot and board-foot quoting, removal and air-sealing lines, rebate-friendly itemization, and deposits — not on energy modelling software, blower-door diagnostics reporting, or crew payroll.
| Software | Starting price | Best for |
|---|---|---|
| ShowTheReceipts That's us | $15/mo | Solo contractors: square-foot and board-foot rates, air-sealing lines, rebate itemization, deposits |
| Joist | Free / $8/mo | Cheapest estimate-and-invoice pair |
| Invoice2go | $9.99/mo+ | Basic mobile invoicing |
| Kickserv Flex | $19/mo | Budget scheduling with invoicing |
| Jobber | $29/mo (Core) | Companies scheduling several crews |
Two units of measure, one job
- Blown-in and batts — per square foot at a stated R-value
- Spray foam — per board foot, open-cell and closed-cell priced apart
Quoting foam by square foot alone hides the thickness, which is where the cost and the performance both actually live. It also makes it hard for anyone to compare your bid honestly against another one.
1. ShowTheReceipts — $15/mo
Square-foot and board-foot rates saved, air sealing and removal as separate lines, rebate-friendly itemization, deposits on ordered material.
2. Joist — Free / $8/mo
Cheap estimate-and-invoice pair.
3. Invoice2go — $9.99/mo+
Basic mobile invoicing.
4. Kickserv Flex — $19/mo
Budget scheduling with invoicing.
5. Jobber — $29/mo (Core)
Scheduling for a company with crews.
The lines an insulation quote needs
- Removal — by square foot, contamination assessed
- Disposal — including contaminated material handling
- Air sealing — top plates, penetrations, hatch, per unit or lump
- Blown-in / batts — square footage at a stated R-value
- Spray foam — board feet, open or closed cell
- Ventilation — baffles, soffit vents, exhaust terminations
- Attic hatch cover and weatherstripping
- Rebate documentation — a real administrative line
State the R-value achieved
“Blown-in insulation — $2,400” tells a customer basically nothing. “R-49, 16 inches of cellulose across 1,100 square feet” is a real spec they can check, compare, and submit to a rebate program.
It’s also exactly what an appraiser and a future buyer are going to want to see.
Bill the rebate paperwork
Assembling a utility program submission is real administrative work, and almost every insulation contractor just gives it away for free. Make it a line — customers pay it gladly, since the alternative is doing the paperwork themselves.
Ventilation isn’t optional
Sealing an attic without fixing the ventilation causes moisture problems you’ll end up getting blamed for. Quote baffles and soffit vents as part of the system, and if the customer says no to that, get it in writing.
Frequently asked questions
How should spray foam be quoted?
By board foot — square footage times inches of thickness — with open-cell and closed-cell priced separately. Quoting foam by square foot alone hides the thickness, which is the entire cost driver and the entire performance difference.
Should air sealing be a separate line?
Yes, always. Sealing top plates, penetrations, and the attic hatch is what makes insulation actually work, it's genuinely separate labor, and it's frequently the line a utility rebate program funds specifically.
How do I bill removal of old insulation?
By square foot plus disposal, quoted after inspecting for contamination. Rodent-contaminated or wet insulation is a hazmat-adjacent job with PPE and containment requirements, and it should never be priced at the same rate as clean removal.
How do I invoice a rebate-funded job?
Itemize exactly what the program asks for — air sealing, R-value achieved, square footage, and material type as distinct lines — and keep the before-and-after photos on the job. Rebate rejections are nearly always a paperwork problem, not a technical one.