Guides / COI basics

What Insurance Limits Should You Require From Subcontractors?

By SubCover HQ · Updated Oct 27, 2026 · 4 min read

"What limits should I require?" is one of the first questions contractors ask when they start taking COI compliance seriously. There's no single right answer. The right numbers depend on your contracts, your trade mix, your project sizes, and your own insurance program. But there are clear common practices, and knowing them gives you a solid starting point for a conversation with your broker.

Important: the figures below describe what is commonly seen in small and mid-size US construction and property service contracts. They are not a recommendation for your business. Your prime contracts, insurer, broker, and attorney should set your actual requirements.

Start with what your own contracts require

Before you pick numbers, look up:

Common ranges by coverage type

CoverageCommonly seen minimumOften higher for
General liability: each occurrence$1,000,000High-risk trades, large projects
General liability: general aggregate$2,000,000 (often per project)Multi-project subs
Products-completed operations aggregate$2,000,000Structural, roofing, residential
Commercial auto: combined single limit$1,000,000Heavy trucks, hauling
Workers' compensationStatutory (as required by state law)n/a
Employers' liability$500,000 / $500,000 / $500,000 to $1,000,000 eachLarger contracts
Umbrella / excess$1,000,000 to $5,000,000Roofing, demolition, crane, high-rise

For small, low-risk vendors (a janitorial service or a landscaper at a small apartment building, say), many property managers accept $1M/$2M general liability with no umbrella. For a roofing sub on a commercial building, $5M or more in umbrella is not unusual.

What pushes requirements up

Tier your requirements instead of one-size-fits-all

Requiring $5M umbrella from a two-person painting crew may mean nobody bids. Requiring only $1M from a roofer may leave you exposed. Many companies use two or three tiers:

Your broker can help assign trades to tiers and set numbers for each.

Limits aren't everything

A sub can meet every limit and still leave you exposed. Your requirements should also cover:

Write it down and apply it consistently

Whatever numbers you choose, put them in your subcontract and a requirements sheet, and check every certificate against them. Our free subcontractor COI checklist is a good template, and the COI tracking guide covers how to keep it all current.

We check the limits for you

Once you set your requirements, SubCover HQ compares every certificate against them, flags limits below your minimums and missing endorsements in plain English, and chases the agent for a corrected certificate.

Frequently asked questions

Can a sub use an umbrella to meet my general liability limit?

Often yes. Many contracts allow a combination of primary and umbrella or excess limits to meet a total requirement, for example $1M GL plus a $4M umbrella to meet $5M. The umbrella should follow form and extend additional insured status to you. Spell out in your contract whether combinations are allowed.

What if a good sub can't meet my limits?

You have options: accept lower limits for that job with sign-off from someone accountable, require the sub to buy a project-specific umbrella, or limit the sub to lower-risk work. What you shouldn't do is waive requirements informally and never write it down.

Do residential contractors need the same limits?

Requirements on residential work are often lower, but residential and multi-family work can carry significant completed operations exposure. Talk with your broker about what's typical in your market and project type.

How often should I revisit my limits?

Review them yearly with your broker, and whenever you take on a larger project, a new type of work, or a contract with new insurance requirements. Medical and legal costs rise over time, so limits that made sense ten years ago may be thin today.

Will my insurer check?

Many contractors' insurers audit certificates from subs at policy renewal. Missing or inadequate sub coverage can lead to additional premium or coverage problems, which is another reason to keep clean records.

Key takeaways

Start from your own contracts and policy, use common practice as a reference point, tier requirements by trade risk, and look past the limits to endorsements. Then check every certificate against the written standard, every time.

This article describes common industry practice for general information. It is not insurance, legal, or risk-management advice.

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