Insurance requirements

Commercial Contractor Insurance — Line By Line

Insurance is where more commercial bids die than any other single line item. This guide walks through each coverage type in the order buyers check them, shows a line-by-line COI example, and gives you the exact wording to hand your agent. Pair with the Bid Guide and vendor registration walkthrough.
Certificate of insurance on a desk

Step 1 — General liability (the base coverage)

Insurance policy documents on a table

General liability protects the buyer if you damage their property or hurt someone during the work. Standard commercial minimums:

Small commercial (strip malls, HOAs, small offices): $1M per occurrence / $2M aggregate.
National property managers (Greystar, Cushman & Wakefield, CBRE, JLL): $2M / $4M.
Federal + hospital + industrial: $5M+ (usually met via umbrella, not a bigger GL).

If your current policy is $500K/$1M, you're eligible for maybe 20% of commercial work. Bumping to $1M/$2M typically costs $400–$900/year more and unlocks the other 80%. Best ROI move in your business.

Step 2 — Additional insured endorsements

Contractor reviewing an additional insured endorsement

An additional insured endorsement adds the buyer (property manager, HOA, or owner) as covered under your GL policy for your work on their property. Almost every commercial buyer requires this on the certificate of insurance (COI).

Buyers often demand specific ISO forms: CG 20 10 (ongoing operations — covers you mid-job) and CG 20 37 (completed operations — covers latent damage after the job). Both together is the safe bet. If the RFP names those forms, they must appear on your COI verbatim.

Ask your agent, in writing: "Please issue a COI naming [Buyer Legal Name] as additional insured on both CG 20 10 and CG 20 37, primary and non-contributory, with waiver of subrogation." That one sentence gets you through 90% of commercial insurance requirements.

  • Name the buyer exactly as they appear in the contract (legal entity, not DBA)
  • Include ongoing (CG 20 10) AND completed operations (CG 20 37) when required
  • Waiver of subrogation if required (~$50–$100/yr extra)
  • Primary + non-contributory wording when demanded
  • Blanket additional insured endorsement (cheaper long-term if you have 10+ commercial accounts)

Step 3 — Workers' comp (WC)

Even solo LLCs are usually required to carry workers' comp or produce a state-issued exemption letter. Federal work: WC is non-negotiable. Never lie about WC coverage — commercial buyers verify with the carrier directly and mid-contract audits do happen.

If you sub any work, your subs must carry their own WC. Get their COI naming you as certificate holder before they start. Otherwise your carrier will re-classify their payroll as yours at year-end audit and hand you a five-figure back-premium bill.

Step 4 — Umbrella / excess liability

An umbrella policy sits on top of your GL and adds $1M–$5M of extra coverage. Cheap — often $400–$700 per $1M — and unlocks bids that require $2M+ limits without upgrading the underlying GL. Most commercial contractors carry $1M–$2M umbrella by year two.

Ask for the umbrella to follow form, meaning it inherits the same additional-insured and waiver-of-subrogation endorsements as your GL. Without follow-form, buyers can reject the umbrella coverage on the COI.

Step 5 — The ACORD 25 COI, line by line

Certificate of insurance ACORD 25 form on screen

Your Certificate of Insurance (COI) — an ACORD 25 form — is what you actually submit. It has to match the RFP requirements exactly. Here's what each block needs, top to bottom:

Producer: Your agent's contact info (auto-filled)
Insured: Your legal business name, exactly as on your W-9 and license
Coverages:
  • Commercial General Liability — $1,000,000 each occurrence / $2,000,000 general aggregate (or higher per RFP)
  • Auto Liability — $1,000,000 combined single limit (any auto or hired & non-owned if you drive to the site)
  • Umbrella / Excess — $1,000,000+ each occurrence, follow-form
  • Workers Compensation — statutory limits + $1M Employer's Liability, or exemption attached
Description of Operations:
"[Buyer Legal Name] is named as additional insured on the General Liability and Umbrella policies with respect to ongoing (CG 20 10) and completed (CG 20 37) operations of the Named Insured, on a primary and non-contributory basis. Waiver of subrogation applies in favor of the Certificate Holder where required by written contract."
Certificate Holder: Buyer legal entity + address, exactly as named in the contract
Policy dates: Cover the entire contract period (renew before it expires — auto-issue COIs for a year+)

Save that description block in a note file. Pasting it into every request to your agent cuts COI turnaround from days to hours.

  • GL limits match or exceed the RFP
  • WC + Employer's Liability listed (or exemption attached)
  • Additional insured names + endorsement form numbers listed
  • Auto liability if you drive to the site
  • Waiver of subrogation if required
  • Certificate holder = buyer exactly as named in contract
  • Policy dates cover the full contract period

Step 6 — Where to buy it (and what to ask for)

Use an independent commercial insurance agent, not the direct-to-consumer online carriers. Independent agents shop 5–10 carriers and know which underwriters like contractors in your trade. Ask specifically for a "commercial contractor package" — GL + WC + auto + tools + umbrella bundled. Bundled quotes are usually 15–25% cheaper than piecing coverage together.

Trade associations often have preferred-carrier programs at real discounts. Landscapers: check NALP. Pressure washers: check PWNA. Ask three agents for quotes on the same spec — most contractors leave 20% on the table by buying from the first one who answers the phone.

  • Ask three independent agents for the same package spec
  • Bundle GL + WC + auto + tools + umbrella (15–25% cheaper)
  • Ask about blanket additional insured endorsements once you have 10+ commercial accounts
  • Request auto-issued annual COIs to save renewal-week scrambles

Frequently asked questions

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