Insulation subcontractors carry overhead driven by specialized equipment for spray foam and blown-in applications, air quality safety programs, and the material coordination required across multiple insulation types and specifications.
These benchmarks are drawn from SPM's work with commercial insulation contractors and industry data. Calculate your actual overhead rate — total G&A expenses divided by total revenue for the trailing 12 months — and compare to your revenue band below.
How to use this data: If you're above the top of the range, specific categories need review. If you're below the bottom, you may be underinvesting in systems and staff. Use the benchmark as a target range, not a single number.
Trade note for Insulation Contractors: Spray foam insulation contractors carry significantly higher overhead than batt insulation contractors — driven by specialized spray rigs, chemical inventory management, PPE requirements, and EPA spray polyurethane foam certification requirements. The benchmarks above apply to full-service insulation including spray foam. Batt-only insulation contractors typically run 3–5% lower on overhead rate.
Spray foam rig maintenance, chemical proportioner calibration, and heated hose infrastructure represent significant overhead. Most insulation contractors track this in general equipment overhead without understanding the true cost of maintaining spray capability.
Spray foam chemical inventory — A and B components with specific storage requirements, shelf life management, and temperature control — creates overhead that batt insulation contractors don't carry. This cost is often buried in material cost rather than tracked as overhead.
Respiratory protection programs, Tyvek suit inventory, chemical handling training, and air quality monitoring for spray foam operations represent real overhead that's often underestimated in overhead rate calculations.
Spray foam rig costs — fuel, maintenance, proportioner calibration — are allocated to specific jobs in ControlQore via internal rates rather than sitting in general overhead. High-spray-volume jobs reflect their true equipment cost.
Spray foam chemical inventory management costs — storage, temperature control, shelf life management — are tracked as a dedicated overhead category in ControlQore separate from material cost. This visibility supports accurate chemical cost pricing in bids.
Air quality monitoring, PPE management, and chemical handling training costs are tracked as a dedicated safety overhead category — supporting accurate safety cost pricing in spray foam bids and revealing the true cost of maintaining spray foam certification compliance.
Find out in a free 30-minute call. Josh will tell you straight where your overhead rate stands and what to do about it.
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