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TL;DR: Underground Utility contractors at $1M-$12M in commercial new construction target 18-23% gross margin. Under $1M the target is 20-25% because overhead is a higher percentage of revenue at lower volume. Gross margin below the lower end of the range almost always has an identifiable cause: markup confusion, overhead rate understatement, or job costing that blends high-cost and low-cost work types into a single rate.
Benchmark Data
Underground Utility Contractor
Gross Margin Benchmarks.
What is a good gross margin for a underground utility contractor? Here are the benchmarks by revenue band and the most common reasons underground utility margins fall below target.
Published: May 2026 · Updated: May 2026
Benchmark Table
Underground Utility Gross Margin by Revenue Band
These benchmarks apply to commercial new construction work. Maintenance contracts, service work, and residential work have different margin structures. Gross margin below the lower end of any band almost always has an identifiable fix.
| Revenue Band | Gross Margin Target | Typical Overhead Rate | Target Net Profit |
|---|
| Under $500K | 22-25% | 16-22% | 6-10% |
| $500K-$1M | 20-25% | 14-18% | 6-10% |
| $1M-$3M | 18-23% | 13-16% | 7-10% |
| $3M-$6M | 18-23% | 12-15% | 7-11% |
| $6M-$12M | 17-22% | 11-14% | 7-11% |
FAQ
Frequently Asked Questions
What is a good gross margin for underground utility contractors?
Underground Utility contractors at $1M-$12M in commercial new construction typically target 18-23% gross margin. Under $1M revenue the target is higher at 20-25% because overhead as a percentage of revenue is greater at lower volume. At $6M-$12M the target compresses slightly to 17-22% as overhead dilutes with scale.
Why do underground utility contractors have lower gross margins than expected?
Three consistent causes: markup confusion where 20% markup is mistaken for 20% margin (it is actually 16.7%), overhead rate understatement where SG&A is missing owner compensation at market rate or equipment depreciation, and job costing that does not separate cost by work type allowing high-cost work to be priced at average rates. Utility conflict delays are the most common gross margin compressor in underground utility work. An unmarked utility at depth requires work stoppage, rerouting, and schedule extension. Each delay event costs $800-$2,000 per day in equipment idle time and crew standby. Contractors who do not document and submit these delays as changed condition change orders absorb the cost silently in gross margin.
How does underground utility job costing improve gross margin?
By making cost per unit visible by work type weekly rather than at closeout. Depth significantly affects production rate and cost per linear foot in underground utility. Pipe at 4-6 feet depth installs faster than pipe at 10-14 feet depth. Estimating that uses a single linear foot rate across all depths underestimates deep work cost. Underground utility contractors who track production rate by depth category discover where their estimates are systematically off. SPM builds ControlQore cost codes aligned to the underground utility estimate structure so actual cost per unit posts weekly against estimated rate.
What overhead rate should a underground utility contractor use?
Underground Utility contractors typically run 12-17% overhead depending on revenue level. The overhead rate must include full owner compensation at market rate, vehicle fleet, equipment depreciation, and technology costs. Understating any of these understates the overhead rate and underprices every bid.
