TL;DR: Most small HVAC shops carry general liability, workers’ compensation, and commercial auto. A certificate of insurance only shows policies in force. Additional insured status and a waiver of subrogation require separate endorsements from your agent.
The certificate request can cost you a job before you call back
The typical request comes in during business hours while you are on a roof or in a crawlspace. A property manager, builder, or homeowners’ association needs your certificate of insurance that same day to release a job or payment.
If nobody calls back until evening, that caller may already have called the next shop on the list.
A certificate of insurance, or COI, is a document from your insurance agent showing the policies your shop has in force. It does not change those policies. It does not add a customer to your coverage. It does not prove that every requested term is included.
You need to know what the document shows and what it does not.
Three policies sit behind most residential HVAC certificates
Most small HVAC shops carry three core policies:
- General liability
- Workers’ compensation
- Commercial auto
General liability covers the shop’s liability exposure in the ordinary course of work. At residential shops, limits commonly run at $1 million per occurrence and $2 million aggregate. Commercial work often asks for higher limits and an umbrella.
Those limits are not universal requirements. The customer contract and your insurance agent set the actual limits for the job.
Workers’ compensation covers employee injuries under the applicable state program. Commercial auto covers vehicles used for the business.
Some shops also carry pollution liability. Many general contractors, property managers, and municipalities require it before allowing HVAC work. That is common practice, not a federal rule or a universal state requirement.
A business owner’s policy, or BOP, can bundle general liability with commercial property. That can fit a shop with a building or owned equipment. Your certificate may still list the liability policy in the form the customer requests.
Your shop’s economics matter when you decide what to carry. The figures discussed in what small HVAC companies make do not replace an agent’s advice, but they show why a small shop needs to track fixed business costs closely.
Your state decides workers’ compensation rules
Workers’ compensation is run by each state, not by the federal government. Federal workers’ compensation programs do not oversee state programs.
As a general rule, state laws apply to employers with one or more employees. Details vary. Some states exempt very small employers, so check your state before deciding that a policy is optional.
Texas is the notable exception. The Texas Department of Insurance says private employers can choose whether to carry workers’ compensation. An employer without it is called a non-subscriber. That employer must report to the state that it does not have coverage and must report certain injuries, illnesses, and deaths to the Division of Workers’ Compensation.
This is separate from the customer’s contract. A property manager can still require workers’ compensation coverage even when state law does not require you to buy it.
Your licensing board and a local independent agent can confirm the rules that apply to your shop. Insurance carrier and broker guides can help you compare ranges, but those sources have a stake in the sale. Treat their numbers as ranges, not rules.
If an employee injury raises recordkeeping questions, keep your process separate from the insurance request. OSHA recordkeeping for a small HVAC shop covers that part of the work.
The customer contract decides many certificate terms
State law may decide whether workers’ compensation is required. The customer contract often decides the limits and endorsements needed before work starts.
A customer may ask for a $1 million per occurrence and $2 million aggregate general liability limit. A commercial customer may ask for higher limits and an umbrella. A general contractor or municipality may ask for pollution liability.
Read the request before sending an old certificate. Confirm the named insured, policy dates, limits, and required coverages with your agent.
Customers often ask to be listed as an additional insured. They may also request a waiver of subrogation. Neither is automatic. Both require your agent to issue an endorsement.
The certificate itself does not create either term. Sending a COI that does not match the contract can delay the job and force another call to your agent.
Keep the insurance answer ready before the phone rings
Keep these items on file where you or your office can reach them:
- Your agent’s phone number and email
- The current certificate PDF
- Current policy dates
- General liability limits
- Workers’ compensation status
- Commercial auto status
- Any pollution liability policy
- Customers that need additional insured status
- Customers that need a waiver of subrogation
Do not give out a certificate with expired dates. Do not promise a customer that an endorsement is active until your agent confirms it. Do not quote coverage from memory.
A missed certificate call is another form of missed business. The same pattern shows up with missed or rescheduled work, which is why HVAC no shows and reschedules deserve their own response process.
The right phone answer collects the request first
You do not need the person answering the phone to interpret an insurance policy. You need the call handled before the caller moves on.
Dial 72 answers 24/7. It captures the caller’s name, number, what they need, and by when. It texts you a call summary so you see “COI request, needs it by noon, property manager” at a glance instead of finding a voicemail later.
Dial 72 does not give out insurance documents or quote coverage. It collects the request and hands it to you or your office. Calls flagged as emergencies are escalated. A certificate request is routine and goes in the summary.
Set the standing answer now: collect the caller’s information, the deadline, the requested limits, and whether they need an additional insured or waiver of subrogation endorsement. Then send the request to your agent or office.
For calls outside business hours, after hours coverage options explains the same response problem from the phone side. As your shop grows, growing a shop and freeing the office manager can help you separate insurance requests from dispatch and customer service work.
