Renovation Insurance: What Homeowners and Contractors Must Have in 2026

September 11, 2026 · Guide · 5 min read

Starting a home renovation without reviewing your insurance coverage is one of the most common — and expensive — mistakes homeowners make. Standard homeowners insurance policies exclude construction-related damage, contractor liability gaps are widespread, and the wrong project can trigger a mid-renovation policy issue. Addressing renovation insurance takes a few hours and costs far less than a single uncovered incident. Here is what you need to have in place before the first contractor arrives.

What Your Existing Homeowners Policy Does (and Doesn't) Cover

Most standard HO-3 homeowners policies cover the dwelling and its contents against named perils. During active renovation, several exclusions become relevant:

• Vacancy clauses — If you move out during the renovation, your insurer may classify the property as vacant after 30–60 days. Vacant property policies are more expensive and harder to obtain mid-project.
• Construction exclusions — Some policies exclude losses caused by construction activities, meaning a fire started by a contractor using a torch may not be covered under your standard homeowners policy.
• Liability changes — Your personal liability coverage applies to you, not to contractor employees on the job site. A worker injured on your property is the contractor's liability — but only if they carry proper workers' comp.
• Materials stored on-site — Roofing materials, cabinetry, and appliances staged in your driveway or garage may have limited coverage under standard personal property limits, and may be excluded if they are for construction purposes.

What to do: Call your insurance agent before signing a contractor agreement. Tell them the project scope, cost, and timeline. Ask whether your existing policy covers the project period or whether you need a rider, and confirm whether you need to notify them in writing. Many policies require written notice for projects above $5,000–$10,000.

What Your Contractor Must Carry

Verifying contractor insurance is a core step in the contractor hiring checklist, but here is what each coverage type actually protects:

Commercial General Liability (CGL)

CGL covers third-party bodily injury and property damage caused by the contractor's work. If a contractor's employee drops a tool through your neighbor's roof, CGL pays. For residential renovations, the minimum to accept is $1 million per occurrence / $2 million aggregate. Larger projects ($200,000+) or those involving structural work warrant $2M per occurrence.

Critically: request a Certificate of Insurance (COI) that names you as an additional insured. This means the contractor's policy will respond to covered claims made against you as the property owner — not just claims against the contractor directly. A COI that does not name you as additional insured provides much weaker protection.

Workers' Compensation

Workers' comp covers medical expenses and wage replacement for employees injured on the job. Requirements vary by state, but most states require it for any contractor with employees. Common gaps occur when:

• The contractor improperly classifies employees as independent subcontractors to avoid buying coverage
• The contractor carries workers' comp but their subcontractors do not — leaving you exposed to claims from the sub's workers
• Coverage lapses mid-project due to a missed premium payment

Ask your contractor to confirm that all subcontractors they use also carry workers' comp. Request updated COIs from the general contractor at the start of the project, not just at contract signing.

Commercial Auto

If a contractor uses vehicles to transport workers, tools, or materials, they need commercial auto coverage. Personal auto policies do not cover business use. A contractor without commercial auto may have other coverage gaps — it is a signal about how seriously they manage their overall business insurance.

Builder's Risk Insurance

Builder's risk (also called course-of-construction insurance) is a specialized policy that covers the structure and materials while construction is in progress. It typically covers fire, lightning, windstorm, hail, theft of materials on-site, vandalism, and certain water damage. It typically does not cover earthquake, flood, employee theft, or damage to the contractor's own equipment.

Who buys it?

Either the homeowner or the general contractor can purchase builder's risk. The contract should specify who is responsible. On large projects ($100,000+), some general contractors include builder's risk in their overhead and fee; others expect the homeowner to purchase it. If the contract is silent, clarify in writing before work begins — silence here means likely no coverage.

What does it cost?

Builder's risk premiums run 1–4% of the total insured value annually, prorated for the project duration. A $150,000 addition with a 6-month timeline might cost $750–$3,000 total. Rates vary by project type (new addition vs. interior renovation vs. structural work), building construction type (wood frame costs more than masonry), location, and deductible level.

Coverage Gaps That Cause Real Problems

The most common insurance failures in residential renovation are not fraud — they are gaps that form because multiple policies exist but none clearly covers the specific incident.

The completed operations gap

CGL policies cover damage during work. Completed operations coverage extends protection to damage that appears after the contractor leaves — a leaking roof, faulty wiring, or improper waterproofing that causes damage six months after project completion. Many residential contractors carry CGL but not completed operations. Our guide on what to look for in remodeling contracts covers how to require completed-operations coverage in your agreement.

The unlicensed-subcontractor gap

Your GC's policy may exclude work performed by unlicensed or uninsured subcontractors. If the GC uses an uninsured tile sub who causes a flood, the GC's policy may deny coverage and leave you to pursue the sub directly — who may have no assets worth pursuing. This is why the contractor red flags guide specifically flags GCs who cannot confirm that their subs carry their own insurance.

The renovation-pause gap

Builder's risk policies typically include an inactivity clause: if work stops for 30–60 consecutive days, the policy may lapse or coverage may suspend. Projects that pause due to material delays, financing issues, or contractor disputes are especially vulnerable. If your project hits a delay of that length, notify your insurer in writing before the inactivity threshold is reached.

Pre-Renovation Insurance Checklist

1. Notify your homeowners insurer of the project scope and cost. Get confirmation in writing.
2. Obtain a COI from the GC naming you as additional insured, current as of the project start date.
3. Confirm the COI shows workers' compensation coverage with no exclusions for subcontractors.
4. Determine who purchases builder's risk and ensure it is in place before demolition begins.
5. Ask the GC to confirm all subcontractors carry their own liability and workers' comp.
6. Set a calendar reminder to request updated COIs at the project midpoint — policies renew annually, and multi-month projects can bridge renewal dates, creating a lapse window.

Find vetted remodeling contractors who carry proper insurance at The Home Remodeling Guide by city, or search for contractors near you whose profiles list verified credentials and insurance status.