OVERHEAD BENCHMARKSFIRE PROTECTION CONTRACTORS$1M TO $500M+REVENUE BAND DATAGROSS MARGINNET MARGINOVERHEAD RATEOVERHEAD BENCHMARKSFIRE PROTECTION CONTRACTORS$1M TO $500M+REVENUE BAND DATAGROSS MARGINNET MARGINOVERHEAD RATE
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Fire Protection Contractors · Sprinkler · Suppression Systems — Overhead Rate Benchmarks — By Revenue Band

Fire Protection Contractor
Overhead Rate.

Fire protection subcontractors carry overhead driven by NICET and NFPA certification requirements, hydraulic calculation expertise, and the AHJ coordination that fire sprinkler systems require in every jurisdiction.

Overhead Benchmarks — Fire Protection Contractors — By Revenue Band

What Normal Looks Like
At Your Revenue Level.

These benchmarks are drawn from SPM's work with commercial fire protection 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.

$1M – $5M
Overhead Rate
13–19%
Gross Margin Target
20–27%
Net Margin Target
6–8%
Largest Overhead Driver
Certification and engineering
NICET certification, hydraulic calculation expertise, and AHJ overhead at small scale.
$5M – $10M
Overhead Rate
11–17%
Gross Margin Target
22–28%
Net Margin Target
7–9%
Largest Overhead Driver
Design and estimating
Fire protection design, CAD drafting, and technical estimating staff overhead.
$10M – $25M
Overhead Rate
10–15%
Gross Margin Target
23–29%
Net Margin Target
7–10%
Largest Overhead Driver
Engineering and compliance
Hydraulic modeling, system engineering, and multi-jurisdiction AHJ management.
$25M – $50M
Overhead Rate
9–13%
Gross Margin Target
24–30%
Net Margin Target
8–11%
Largest Overhead Driver
Safety and testing
Formal fire protection safety programs and system testing documentation overhead.
$50M – $100M
Overhead Rate
8–12%
Gross Margin Target
25–31%
Net Margin Target
9–12%
Largest Overhead Driver
Corporate overhead
Multi-region fire protection operations with engineering and service divisions.
$100M – $500M
Overhead Rate
7–10%
Gross Margin Target
26–32%
Net Margin Target
10–13%
Largest Overhead Driver
Corporate and compliance
Large fire protection programs with formal engineering management systems.
$500M+
Overhead Rate
6–9%
Gross Margin Target
27–33%
Net Margin Target
11–14%
Largest Overhead Driver
Finance and legal
Scale overhead at large fire protection contractor level.

Trade note for Fire Protection Contractors: Fire protection contractors who perform both new construction installation and annual inspection/testing carry higher overhead than installation-only contractors. Annual inspection programs require scheduling infrastructure, service vehicles, and testing equipment overhead that pure installation operations don't carry.

Why Overhead Rate Gets Off Track

Three Reasons Your
Overhead Is Drifting.

01

Hydraulic Calculation and Design Labor Gets Buried

System design, hydraulic calculations, and CAD drafting for specific fire protection projects are direct job costs — not overhead. When design labor gets coded to overhead, installation jobs look less profitable and overhead is overstated.

02

NFPA Compliance Documentation Overhead

Maintaining current knowledge of NFPA 13, NFPA 14, NFPA 72, and applicable local amendments requires ongoing education and documentation overhead that's often underestimated in overhead rate calculations.

03

Prefabrication Infrastructure Cost

Fire protection contractors who operate prefabrication shops carry shop overhead — space, equipment, assembly labor — that field-install-only contractors don't have. This overhead should be tracked separately and allocated to the jobs benefiting from prefabrication efficiency.

How SPM Manages It

Overhead Rate as a
Managed Number.

Design Cost to Jobs

Hydraulic calculations, system design, and CAD drafting for specific projects are coded to those jobs in ControlQore — not to overhead. Design labor that directly supports a specific fire protection installation belongs in that job's direct cost.

Prefabrication Shop Overhead Tracking

For fire protection contractors with prefabrication operations, SPM builds shop overhead tracking in ControlQore — allocating prefabrication infrastructure cost to the jobs benefiting from shop fabrication rather than absorbing it in general overhead.

Inspection vs. Installation Overhead Separation

For fire protection contractors with both installation and inspection operations, SPM builds separate overhead rate tracking for each service line — preventing inspection program overhead from distorting installation overhead rates.

Service Tiers

Two Ways to
Work With SPM.

Core Financial
From $1,900/mo
  • ControlQore setup and management
  • Job costing aligned to your estimates
  • Bookkeeping and bank reconciliations
  • AR and AP management
  • Monthly overhead rate tracking
  • 1 monthly CFO meeting
  • 60-day onboarding
Executive Financial
From $2,900/mo
  • Everything in Core Financial
  • Monthly WIP schedule
  • 13-week cash flow forecast
  • CEO Report and financial dashboard
  • 3 monthly CFO advisory meetings
  • Overhead rate vs. benchmark monthly
  • Direct access to Josh
Common Questions

Straight Answers.

How do I calculate my overhead rate?
Add up every expense that isn't a direct job cost for the trailing 12 months — office staff, rent, insurance, equipment payments not allocated to jobs, vehicles, software, marketing. Divide by total revenue for the same period. That percentage is your overhead rate. Compare it to the benchmark for your revenue band above.
Does SPM serve fire protection contractors at all revenue levels?
SPM's direct engagement covers $1M–$12M in revenue. The benchmark data on this page covers the full revenue spectrum for reference. For contractors above $12M, SPM can make the right introduction to firms that specialize at larger scale.

IS YOUR OVERHEAD
IN RANGE?

Find out in a free 30-minute call. Josh will tell you straight where your overhead rate stands and what to do about it.

Schedule a Free Call →
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