Insurance is one of the most important — and most confusing — parts of running a contracting business. Most states require some form of insurance as a condition of licensure, and even in states that don’t mandate it, working without coverage is a serious financial risk.
This guide breaks down the main types of contractor insurance, what they cost, and how to figure out what your state requires.
General Liability Insurance
General liability (GL) is the foundation of contractor insurance. It covers third-party claims for bodily injury and property damage that occur during the course of your work. If a client trips over your equipment and breaks an arm, or you accidentally damage a neighbor’s fence during a demolition job, GL covers the claim.
Typical costs
- $500 - $2,000 per year for sole proprietors with low-risk trades (painting, fencing)
- $1,500 - $5,000 per year for mid-risk trades (general contracting, carpentry)
- $3,000 - $10,000+ per year for high-risk trades (roofing, demolition, electrical)
Premiums depend on your trade, annual revenue, claims history, and coverage limits.
Common minimum requirements
Most states that require GL insurance set minimums at either:
- $300,000 per occurrence / $600,000 aggregate (lower-risk trades)
- $500,000 per occurrence / $1,000,000 aggregate (most trades)
- $1,000,000 per occurrence / $2,000,000 aggregate (high-risk trades and commercial work)
Workers’ Compensation Insurance
If you have employees, workers’ compensation is almost certainly required. It covers medical expenses and lost wages for employees injured on the job. Only Texas and a handful of other states make it truly optional for private employers.
Key details
- Premiums are calculated based on your payroll and a rate determined by your trade’s classification code
- Roofers and demolition contractors pay significantly more than office-based estimators or project managers
- Even in states where it’s not required, many general contractors and property owners will refuse to hire subcontractors who don’t carry workers’ comp
Surety Bonds
A surety bond is different from insurance — it protects the consumer, not you. If you fail to complete a job or violate regulations, a claim against your bond compensates the affected party. You’re ultimately responsible for repaying the bonding company.
What they cost
- Bond amounts typically range from $5,000 to $25,000 depending on your state and trade
- Your annual premium is a percentage of the bond amount: 1-3% with good credit (700+), 5-15% with poor credit
- Example: A $15,000 bond with good credit costs roughly $150-$450 per year
Specialty Insurance
Some trades require additional coverage:
- Pollution liability — Required for asbestos abatement, lead paint removal, and environmental contractors
- Professional liability (E&O) — Common for home inspectors and design-build contractors
- Commercial auto — If you use vehicles for business purposes
- Inland marine — Covers tools and equipment in transit or at job sites
How to Get Covered
- Check your state requirements first. Use our state directory to find exactly what insurance your state requires for your trade.
- Get multiple quotes. Insurance costs vary significantly between carriers. Contact at least three agents or use an online comparison tool.
- Work with an agent who knows construction. A general insurance agent may not understand the nuances of contractor coverage. Look for agents who specialize in construction or trades.
- Bundle when possible. Many carriers offer discounts if you combine GL, workers’ comp, and commercial auto into a Business Owner’s Policy (BOP).
- Review annually. As your business grows, your coverage needs change. Review your policies every year and adjust limits as needed.
What Happens If You Don’t Have Insurance?
The consequences of operating without required insurance range from inconvenient to devastating:
- License suspension or revocation. In most states, your insurance carrier is required to notify the licensing board if your policy lapses. The board will suspend your license — sometimes within 10 days of the lapse.
- Contract voidability. Some states allow clients to void contracts with uninsured contractors, leaving you with no legal ability to collect payment for work already completed.
- Personal liability. Without GL insurance, you’re personally responsible for any property damage or injuries that occur on your job sites. A single serious injury claim can easily exceed $500,000.
- Criminal penalties. In states that require workers’ comp, operating without it is often a criminal offense with fines up to $100,000 or more, plus potential jail time for repeat offenders.
- Loss of subcontract opportunities. Nearly every general contractor and commercial property owner requires proof of insurance before hiring subcontractors. No insurance means no commercial work.
Insurance Costs by Trade
Insurance costs vary dramatically between trades based on the inherent risk level. Here’s a more detailed breakdown of typical annual premiums for a small contracting business ($250,000-$500,000 in annual revenue):
- Painting / Drywall: $600 - $1,500 GL
- Carpentry / Framing: $1,200 - $3,500 GL
- Plumbing: $1,500 - $4,000 GL
- Electrical: $1,500 - $4,500 GL
- General Contracting: $2,000 - $6,000 GL
- HVAC: $1,800 - $5,000 GL
- Roofing: $3,500 - $12,000 GL
- Demolition: $4,000 - $15,000 GL
- Asbestos Abatement: $5,000 - $20,000+ GL (plus pollution liability)
These ranges assume a clean claims history and adequate but not excessive coverage limits. Your actual premium will depend on your specific location, revenue, number of employees, and claims history.
Understanding Your Certificate of Insurance
When a client or general contractor asks for your “COI” (Certificate of Insurance), they’re asking for a standardized document — usually an ACORD 25 form — that summarizes your coverage. Key items on the COI include:
- Named insured — Your business name exactly as registered
- Policy numbers — For each coverage type
- Coverage limits — Per occurrence and aggregate
- Policy dates — Effective and expiration dates
- Additional insured — Many clients require being listed as an additional insured on your policy
- Certificate holder — The party requesting the COI
Your insurance agent can generate COIs quickly — most can turn them around the same day. Always verify that the information is accurate before sending it to a client or licensing board.
Tips for Lowering Your Insurance Costs
Beyond shopping around, there are several strategies to reduce your premiums over time:
- Maintain a clean claims history. This is the most powerful lever. Even one or two claims can increase your premium by 20-40% for several years.
- Implement a safety program. Many insurers offer discounts of 5-15% for documented safety programs, regular training, and OSHA compliance.
- Increase your deductible. A higher deductible lowers your premium. If you can afford to absorb the first $2,500-$5,000 of a claim, you can save significantly.
- Pay annually. Most carriers charge a 5-10% surcharge for monthly payment plans. Paying the full annual premium upfront saves money.
- Classify your workers correctly. Workers’ comp rates are tied to classification codes. Make sure your employees are classified in the correct code — overly broad classifications can inflate your premium.
- Consider a BOP. A Business Owner’s Policy bundles GL, commercial property, and business interruption insurance at a lower combined cost than purchasing each separately.
For state-specific insurance requirements, check our state directory or bonds & insurance guide.