Overhead costs for HVAC contractors are the expenses that hit every month regardless of how many calls you run — fleet payments, warehouse rent, insurance, office staff, licensing, and marketing. They're the fixed burden your trucks have to earn back before a single dollar counts as profit.
Why HVAC Contractors Owners Should Care
For HVAC contractors, overhead is every expense that doesn't go directly into completing a specific job. Fleet costs, warehouse rent, office staff, insurance, licensing — these bills arrive whether you run 50 jobs a month or zero. HVAC is seasonal, so a $15K/month overhead burden in April (slow month) hits very differently than in July (peak season).
Industry Benchmarks
25-35% of revenue
Healthy Range
36-45% of revenue
Warning Zone
Over 45% of revenue
Danger Zone
Industry context: Residential-focused HVAC: 25-35%. Commercial HVAC: 30-40%. Companies with large fleets and warehouse space trend higher.
Source: Based on typical industry benchmarks
How to Calculate Overhead Costs
Formula
Overhead Rate = (Total Overhead Costs / Total Revenue) × 100
In plain English
What percentage of every dollar you earn goes to keeping the business running (not counting direct service delivery costs)
Example: Example: Mid-Size HVAC Contractor
Annual Revenue Full-year revenue | $800,000 |
Fleet (5 Trucks) Payments, fuel, insurance, maintenance, GPS | -$72,000 |
Warehouse + Shop Parts storage, shop space, utilities | -$36,000 |
Admin Staff (2 People) Office manager and dispatcher | -$85,000 |
Insurance & Licensing Workers' comp, liability, contractor licenses, bonding | -$42,000 |
Technology & Software Dispatching, CRM, invoicing, fleet management | -$18,000 |
Marketing Google Ads, vehicle wraps, Angi listings | -$36,000 |
Training & Certs EPA, manufacturer training, safety courses | -$12,000 |
Miscellaneous Uniforms, small tools, office supplies | -$9,000 |
Calculation
($310,000 overhead / $800,000 revenue) × 100 = 38.8% overhead rate
This HVAC business spends nearly 39 cents of every dollar on overhead. If gross margin (after parts and tech labor) is 50% ($400K), then $310K goes to overhead, leaving $90K in net profit (11.3%). Every truck, subscription, and insurance policy needs to earn its keep.
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Get My Free ScoreCommon Problems in HVAC Contractors
Symptom
Tracking fuel but forgetting depreciation, insurance, and maintenance per vehicle
Impact
A service van costs $40K-60K and depreciates $8K-12K/year. That depreciation is real overhead even without a monthly bill. A 5-truck fleet carries $40K-60K/year in depreciation alone.
How to Improve Your Overhead Costs
How to do it
Add payment + insurance + fuel + maintenance + depreciation for each vehicle. Divide by jobs per truck. This is your per-job fleet overhead. Price it into every estimate.
Expected impact
Accurate fleet cost allocation prevents underpricing. Typical HVAC companies discover fleet overhead is $800-1,500/truck/month, not the $400-600 they assumed.
Key Takeaways
What it measures
The ongoing expenses of running your business that aren't tied to delivering a specific product or service
Healthy range for HVAC Contractors
25-35% of revenue
Formula in plain English
What percentage of every dollar you earn goes to keeping the business running (not counting direct service delivery costs)
Most common problem
Underestimating true fleet costs
Fastest fix
Calculate true cost per truck per month
Frequently Asked Questions
The most commonly missed overhead cost is vehicle depreciation. A service van costs $40K-60K and depreciates $8K-12K per year — a 5-truck fleet carries $40K-60K annually in depreciation alone, even without a monthly bill. Owners also underestimate seasonal admin costs, often paying full-time dispatchers year-round when the role is only needed 8 months.
Related Financial Metrics
Other important metrics for HVAC Contractors
Overhead Costs in Other Industries
See how overhead costs compares across different business types
Cleaning Companies
Cleaning company overhead runs 10-18% solo, 20-28% for small teams, and 25-35% for larger operations. See benchmarks by company size.
Salons & Spas
Salon overhead averages 25-38% of revenue. Booth rental runs 20-30%, employee model 30-45%, high-end hits 35-50%. See benchmarks by salon type.
Restaurants
Restaurant overhead averages 20-30% of revenue. Fast-casual runs 18-25%, full-service 25-35%, fine dining hits 30-40%. See benchmarks by format.
Marketing Agencies
Marketing agency overhead averages 20-30% of revenue. Remote-first runs 15-25%, downtown offices hit 30-45%. See where your agency should land.