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A single lawsuit from a slip-and-fall on a job site can cost more than an entire year's revenue for a mid-size contracting firm. A stolen trailer full of specialty tools can set a project back weeks. An employee injury without proper coverage can threaten your ability to bid on future work. The reality is that contractor insurance isn't just a line item on your budget: it's the foundation that keeps your business standing when things go sideways. This guide covers the full spectrum of coverage that contractors need, from general liability and workers' comp to commercial auto, property protection, and the specialized policies that separate well-protected businesses from those gambling with their livelihood. Whether you're a solo electrician or running a crew of forty, the right insurance portfolio looks different for everyone. The key is understanding what each policy actually does, where the gaps hide, and how to build a program that matches your real risk exposure. Too many contractors renew the same bare-minimum policies year after year without asking whether their coverage still fits the work they're doing. That's a mistake that tends to reveal itself at the worst possible moment. One insurance industry expert put it plainly: the most serious decision a contractor makes is matching the provider to the actual risk profile of the business, not just renewing the cheapest policy available.

Essential Liability Protection for Contracting Businesses

Liability claims are the most common threat contractors face, and they come from directions you don't always expect. A homeowner trips over materials you left in a hallway. A subcontractor damages a neighbor's property. A design recommendation leads to a structural issue discovered months later. Each scenario triggers a different type of liability coverage, and having the wrong one (or none at all) can be financially devastating. The three layers below form the backbone of any contractor's liability program.


General Liability: Protecting Against Third-Party Claims


Commercial general liability, or CGL, is the policy most people think of first. It covers bodily injury and property damage claims made by third parties: clients, bystanders, neighboring property owners, and anyone else who isn't on your payroll. If a visitor to your job site steps on a nail, CGL responds. If your crew accidentally damages a client's existing flooring during a remodel, CGL covers the repair or replacement costs.


Most CGL policies also include completed operations coverage, which protects you after the job is done. Say you finish a bathroom renovation in March, and in September the homeowner discovers water damage from faulty tile work. Completed operations picks up that claim. Standard limits run $1 million per occurrence and $2 million aggregate, though higher-value projects often require more. Claim severity has been climbing steadily, with 60% of insurers reporting higher claim severity in 2025, up from 53% the prior year. That trend alone should make contractors think twice about carrying minimum limits.


Professional Liability and Errors & Omissions


General liability covers physical damage. Professional liability covers your advice, designs, and professional judgment. If you're a general contractor who recommends specific materials, a design-build firm creating plans, or an HVAC contractor who sizes a system incorrectly, professional liability (often called E&O) is what responds when a client claims your professional services caused them financial harm.


This policy fills a gap that CGL explicitly excludes. Many contractors assume their general liability handles everything, but professional negligence claims are carved out of standard CGL forms. If your work involves any consulting, project management, or design responsibility, E&O coverage isn't optional: it's essential.


Excess Liability and Commercial Umbrella Policies


An umbrella policy sits on top of your CGL, auto liability, and employer's liability, extending limits beyond the underlying policies. If a catastrophic claim exceeds your $1 million CGL limit, the umbrella kicks in. For contractors working on large commercial projects or high-value residential properties, umbrella limits of $5 million to $10 million are common requirements.


The cost is surprisingly reasonable relative to the protection. A $5 million umbrella might run $1,500 to $3,000 annually for a mid-size contractor, depending on your trade and claims history. Agencies like Avery Insurance Agency, which has spent over 125 years building custom coverage portfolios, often identify umbrella gaps during their consultative reviews that contractors didn't realize existed.

By: Tod O’Dowd, CIC, CAPI

President of Avery Insurance Agency

INDEX

Avery Insurance is a local, independent insurance agency fully licensed to serve individuals and businesses across New England and in 40+ states nationwide.

We proudly serve clients across Wolfeboro, Portsmouth, and throughout New England — working with multiple top-rated carriers to help homeowners, contractors, restaurant owners, property managers, manufacturers, and dozens of other personal and commercial clients secure the right coverage at the right price.

Safeguarding Your Workforce and Physical Assets

People and property are your two biggest investments. Protecting both requires separate but interconnected policies.


Workers' Compensation and Employer's Liability


Every state except Texas mandates workers' comp for businesses with employees, and the penalties for non-compliance range from fines to criminal charges. Workers' comp covers medical expenses, lost wages, and rehabilitation for employees injured on the job. Employer's liability, which is typically bundled with workers' comp, covers lawsuits from employees alleging negligence.


The good news for contractors: workers' comp has been the most profitable line of coverage for major insurers, achieving a combined ratio of 88.8% in 2024. That profitability has kept rates stable or declining in many states. Florida employers, for example, will see an average workers' comp rate decrease of 6.9% in 2026. Classification codes matter enormously here: a roofer pays dramatically more per $100 of payroll than a painting contractor. Make sure your employees are classified correctly, because misclassification triggers audit penalties.


Commercial Property and Business Personal Property


Your office, warehouse, or shop needs property coverage just like a home does. Commercial property insurance covers the building itself (if you own it) and business personal property inside: computers, office furniture, inventory, and stored materials. Business income coverage, often added as an endorsement, replaces lost revenue if a covered event forces you to shut down temporarily.


One common mistake: assuming a landlord's policy covers your stuff. It doesn't. If you lease space, you still need your own business personal property coverage.


Inland Marine: Coverage for Tools and Equipment in Transit


Standard property policies cover items at a fixed location. Inland marine covers property that moves: tools in your truck, equipment being transported between sites, and materials stored at a job location. For contractors, this is often more valuable than traditional property coverage because your most expensive assets rarely stay in one place.


A contractor's tools and equipment floater, a type of inland marine policy, can be written on a scheduled or blanket basis. Scheduled policies list specific items and their values. Blanket policies cover everything up to a set limit without itemizing. If you've got $50,000 worth of tools spread across three trucks and two job sites, blanket coverage is usually the smarter choice.

Commercial Auto and Fleet Management Solutions

Vehicles are central to contracting operations, and auto liability is one of the fastest-rising costs in the industry. WTW projects auto liability increases of 8 to 20% for construction companies in 2026, driven by distracted driving claims and rising repair costs. A commercial auto policy covers owned vehicles used for business, including liability, collision, comprehensive, and uninsured motorist protection.


Fleet management goes beyond just buying a policy. Telematics programs, driver training, and MVR (motor vehicle record) monitoring can meaningfully reduce premiums over time. Insurers reward contractors who actively manage driver risk.


Hired and Non-Owned Auto Liability


If employees ever drive rental vehicles for work or use their personal cars on company business, hired and non-owned auto liability fills a critical gap. Your commercial auto policy only covers vehicles you own. If an employee causes an accident in their personal car while picking up supplies for a job, your business can be named in the lawsuit. This endorsement, typically added to your CGL or commercial auto policy, is inexpensive and frequently overlooked.

Industry-Specific Endorsements and Specialized Risk

Generic policies miss industry-specific exposures. These specialized coverages address risks unique to construction and contracting.


Builders Risk Insurance for Projects Under Construction


Builders risk covers a structure during construction, from groundbreaking through completion. It protects against fire, wind, theft, and vandalism damage to the building, materials on site, and materials in transit. The policy is typically written for a specific project and term, expiring when the certificate of occupancy is issued.


On residential projects valued over $1.5 million, builders risk is non-negotiable. Avery Insurance Agency frequently works with contractors and homeowners on these high-value builds to ensure the policy limits match the full completed value, not just the construction budget.


Pollution Liability and Environmental Risk Policies


Standard CGL policies exclude pollution claims. If your work involves excavation, demolition, tank removal, or asbestos abatement, a separate pollution liability policy is necessary. Even general contractors can face pollution claims if a subcontractor's work releases contaminants. Site-specific and contractor's pollution liability policies are available depending on the scope of risk.


Surety Bonds vs. Insurance Coverage



Bonds aren't insurance, but they're often required alongside it. A surety bond is a three-party agreement guaranteeing you'll fulfill contract obligations. If you default, the surety pays the project owner and then comes after you for reimbursement. Insurance pays claims on your behalf. Bonds guarantee your performance. Most public works projects require bid bonds, performance bonds, and payment bonds.

Feature Insurance Surety Bond
Purpose Covers losses from claims Guarantees contract performance
Who pays claims Insurer absorbs the loss Contractor reimburses the surety
Required by Contracts, leases, lenders Government and public projects
Premium basis Risk-based Credit and financial strength

Strategic Risk Management and Policy Maintenance

Buying the right policies is only half the equation. Managing them properly keeps you compliant, competitive, and prepared for audits.


Understanding Certificates of Insurance (COI)


A COI is proof that you carry specific coverages. General contractors require them from every sub. Property owners require them before you start work. Getting COIs issued quickly and accurately matters: delayed certificates delay projects. Work with an agency that can turn these around same-day, and make sure your additional insured endorsements match what your contracts require.


Factors Influencing Premium Costs and Audit Readiness



Premiums are based on payroll, revenue, claims history, trade classification, and experience modification rate. Annual audits verify that the estimates you provided at policy inception match reality. If your actual payroll exceeded your estimate, you'll owe additional premium. If it came in lower, you'll get a refund.


Keep clean payroll records separated by classification code. Track subcontractor certificates diligently: if a sub doesn't carry workers' comp, their labor costs may be added to your audit, increasing your premium.

Before You Renew Your Next Policy

Contractor insurance is a system, not a single product. Each policy covers a specific risk, and the gaps between them are where businesses get hurt. Review your coverage annually, especially as your revenue, headcount, or project types change. Avery Insurance Agency's consultative approach is built around exactly this kind of review: uncovering vulnerabilities so you can sleep at night knowing your business is actually protected. If your current program hasn't been evaluated in over a year, that's your sign to pick up the phone.

Frequently Asked Questions

How much does general liability insurance cost for a small contractor? Most small contractors pay between $500 and $3,000 per year for a standard CGL policy, depending on trade, location, and revenue. Higher-risk trades like roofing or demolition pay more.


Do I need workers' comp if I only have one employee? In most states, yes. Requirements vary by state: some kick in at one employee, others at three or more. Check your state's specific threshold.


What's the difference between inland marine and commercial property insurance? Commercial property covers items at a fixed location. Inland marine covers property in transit or stored at temporary job sites: think tools, equipment, and materials moving between locations.


Can I bundle multiple contractor policies into one package? Yes. A Business Owners Policy (BOP) bundles general liability and property coverage at a discount. Other policies like workers' comp and commercial auto are typically written separately but can be managed through a single agency.


Is cyber liability insurance relevant for contractors? More than you'd think. If you store client data, process payments digitally, or use connected job-site technology, you're exposed. Small contractors can find cyber liability coverage for around $1,200 to $1,800 per year for $1 million in protection.

ABOUT THE AUTHOR:
Tod O’Dowd, CIC, CAPI

I'm the President of Avery Insurance Agency, a family-owned independent agency serving individuals and businesses across New England and in 40+ states. With a hands-on, consultative approach to personal and commercial risk, I help clients — from high-net-worth homeowners and contractors to restaurant owners and property managers — find the right coverage without the guesswork of working with a single-carrier agent.

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General Liability Insurance


Protect your business from third-party claims of bodily injury, property damage, and personal injury. General liability is the foundation of any solid business insurance program.

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Commercial Property Insurance


Covers your building, equipment, inventory, and other physical assets against fire, theft, vandalism, and other covered losses. Keep your business protected from the unexpected.

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Workers’ Compensation Insurance


Workers’ comp covers medical costs and lost wages when an employee is injured on the job. Avery helps businesses meet state compliance requirements and manage costs effectively. 

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Cyber Liability Insurance


Data breaches and cyberattacks are a growing risk for businesses of all sizes. Cyber liability covers response costs, legal fees, and customer notification expenses after a security incident.

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Employment Practices Liability Insurance


Covers your business against employee claims of wrongful termination, discrimination, harassment, and related issues. Essential for any business with employees.

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Commercial Auto Insurance


Whether a single truck or a full fleet, commercial auto insurance protects your business against accidents, damage, and liability on the road.

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Tailored Insurance Programs for the Industries That Drive New Hampshire

We Understand the Risks Your Industry Faces — and How to Manage Them

Contractors Insurance


From general contractors to specialty trades, Avery understands the unique liability and property exposures your business faces on every job site in New England. We build coverage programs that keep your crew and company protected.

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Restaurants, hotels, and marinas face distinct risks — from slip-and-fall liability to liquor liability and food spoilage. Avery designs coverage programs for the specific needs of the hospitality industry.

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Whether you own a portfolio of investment properties or manage a condo association, Avery provides the right mix of property, liability, and management coverage to protect your real estate investments.

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Got Questions? We’ve Got Answers.

Straight Answers From the Advisors Who Know This State Best

  • What does it mean that Avery is an independent insurance agency?

    An independent agency like Avery is not tied to any single insurance company. We represent multiple top-rated carriers, which means we can shop the market on your behalf and recommend the coverage that truly fits your needs — not the one that benefits any single insurer.


    This independence gives you access to more options and unbiased advice. Our advisors are compensated to serve your interests, not to push a specific product. That is a significant advantage over captive agents who can only offer one carrier’s policies.

  • How much does it cost to work with an Avery advisor?

    There is no direct cost to you for working with an Avery advisor. Independent agents are compensated through commissions paid by the insurance carriers when a policy is placed. You receive expert guidance, market comparisons, and ongoing service at no extra charge.


    In fact, many clients find that working with Avery saves them money. Our advisors know how to identify the right coverage levels so you are not paying for protection you do not need, and you are not left exposed where you do.

  • Does Avery help with claims?

    Yes — and this is one of the most important things that sets Avery apart. When you have a claim, our in-house claims advisors go to work for you. We guide you through the process, communicate with the insurance company, and advocate for a fair and timely outcome.


    Several of our team members hold professional claims designations, including AIC and AINS. We do not just help you file paperwork — we actively represent your interests to make sure you receive the full benefit your policy provides.

  • Where in New Hampshire does Avery provide coverage?

    Avery serves clients throughout the state of New Hampshire from our offices in Wolfeboro and Portsmouth. Whether you live in the Lakes Region, the Seacoast, the White Mountains, or the Merrimack Valley, an Avery advisor is ready to help you find the right coverage.


    Our advisors understand the specific risks that come with living and doing business in New Hampshire — from harsh winter weather to seasonal watercraft exposure. We apply that local knowledge to every coverage recommendation we make.

  • How does Avery handle high-value homes and assets?

    Avery offers a dedicated Premier Client Services program for clients with homes valued over .5 million, significant investment portfolios, fine art collections, jewelry, yachts, and other complex assets. This program pairs you with a specialist who understands the unique risks of high-net-worth households.


    Through carriers that specialize in high-value personal lines, we provide guaranteed replacement cost coverage, agreed value policies, and comprehensive risk management strategies. Your advisor will conduct a detailed review of your full asset portfolio to make sure nothing is overlooked or underinsured.

  • How often should I review my insurance coverage?

    Avery recommends a full coverage review at least once a year. Major life events — buying a home, starting a business, adding a vehicle, getting married, or making significant home improvements — are all good triggers for an immediate review outside your annual cycle.


    Insurance needs change over time, and policies that were right for you a few years ago may leave gaps today. Avery advisors proactively reach out to clients for annual reviews and keep up with changes in the insurance market that could affect your coverage or premium. Our goal is to make sure you are always protected and never paying for coverage that no longer fits.

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