Job Details
Revenue and scope of work
Materials
All material costs including waste factor
Batts, bags, or foam — your cost
Labor
Crew costs including burden
Overhead & Other Costs
Disposal, equipment, subcontractors
Blower rental, spray rig, PPE

How the Insulation Profit Calculator Works

Batt, blown-in, spray foam — this calculator gives you a real-time margin breakdown on any insulation job. See your gross and net margin alongside 2026 industry benchmarks before you commit to a price.

  1. Enter your contract price. Include the total square footage of the job.
  2. Add material costs. Insulation material, vapor barrier, and miscellaneous supplies.
  3. Enter labor details. Your installer’s burdened hourly rate and days on the job.
  4. Add overhead and other costs. Blower rental, spray rig cost, and overhead allocation.
  5. Read your margin instantly. Gross and net margin update instantly against trade benchmarks.

Spray foam insulation commands the highest margins in the trade — closed-cell foam regularly achieves 45–55% gross margin for crews that own their spray rig.

Frequently Asked Questions

What profit margin should insulation contractors target?
Insulation contractors typically achieve 33–55% gross margin depending on insulation type. Batt and roll insulation runs 33–42%; blown-in cellulose and fiberglass runs 38–48%; spray foam — especially closed-cell — routinely hits 45–55% because the material cost is lower relative to the installed value and competition is thinner.
How do I price spray foam insulation jobs?
Spray foam is typically priced per board foot (1 sq ft × 1 inch thick). Open-cell foam runs $0.35–$0.55 per board foot installed; closed-cell runs $0.90–$1.40 per board foot. Multiply by total board feet needed (area × desired inches of foam) to get your installed price. Your material cost should run 35–45% of revenue for a healthy margin.
What equipment do insulation contractors need to own vs. rent?
Batt crews need minimal equipment — basic hand tools and a truck. Blown-in requires a blower machine (own or rent at $150–$250/day). Spray foam requires a heated proportioner and spray rig — a new rig runs $15,000–$45,000. Owning the rig is necessary to achieve top-tier spray foam margins; renting is only viable for occasional jobs.
How does insulation type affect job profitability?
Batt insulation is the most competitive — many contractors can do it, margins are tighter. Blown-in requires equipment and technique, reducing competition somewhat. Spray foam has the steepest equipment barrier to entry, the most complex application, and the highest margins as a result. Contractors who invest in spray foam capability almost always see margin improvement.
What overhead percentage is typical for insulation contractors?
Most insulation contractors allocate 12–18% of revenue to overhead. Spray foam crews run slightly higher due to rig maintenance, heated storage for foam drums, and PPE/respirator costs. Batt crews run lighter overhead — often 10–14%.