What to ask an HVAC provider in St. Louis before you hire
Start with safety, then the paperwork
Heating and cooling equipment combines gas, electricity and pressurized refrigerant. A rushed hire can leave you with a poor repair or an unsafe system. Spend ten minutes on questions first.
Defendingloaded Heating & Air is a referral site. Independent local providers do the work, not Defendingloaded Heating & Air. So every question below is one you put to the provider yourself. A good provider answers plainly.
If you smell gas, leave the house. Do not flip switches or use a lighter. Contact your gas utility or emergency services from outside. Do not wait for an estimate.
Questions to ask before you agree to a visit
- Are you licensed for HVAC work where I live? Rules differ by place. Ask for the license number and check it with the office that issued it.
- Do you carry liability insurance and workers' compensation? Ask for proof, not a promise.
- Is the person coming to my home an employee or a subcontractor? Either can be fine. You should know who will be in your house.
- What does the diagnostic visit cost, and is it applied to the repair? Policies vary. Get the answer before the visit.
- Do you work on my type and brand of equipment? Furnaces, heat pumps, central AC and ductless systems are not interchangeable.
- Will you pull a permit if one is needed? Replacements often need one. Local rules decide.
- How long is the warranty on parts and on labor? Ask for it in writing. The two are often separate.
Questions about the estimate
Ask for a written estimate that lists parts, labor, any diagnostic or trip fee, and taxes. For a replacement, ask how the system was sized. A sound answer refers to a load calculation or a measured look at your home. It is not just 'the same size as the old one.'
Many frame houses, bungalows and ranch homes in the St. Louis area have ductwork that was never sized for modern equipment. Ask whether the provider checked the ducts and what they found.
Also ask:
- What happens if you find another problem once the panel is open?
- Will you tell me before doing any work that is not on the estimate?
- How will you remove old equipment and handle the refrigerant?
- When is payment due, and how much is due up front?
Red flags
Stop and think if you see any of these:
- Pressure to decide today. A real safety problem is explained to you. It is not used as a sales deadline.
- No written estimate. A number given only by word of mouth is hard to hold anyone to.
- A very large deposit or a cash-only demand. Ask what the deposit covers.
- Condemning a furnace without showing you. Ask to see the cracked part, the failed reading or a photo.
- Refrigerant 'top-offs' with no leak search. Refrigerant is not used up. If it is low, there is a leak somewhere.
- No license or insurance details offered. If it feels awkward to ask, that tells you something.
- Skipping the permit. Unpermitted work can cause trouble later, such as when you sell.
- Vehicle or paperwork that does not match the name you were given.
One item alone is not a reason for alarm. Several together are a reason to look elsewhere.
Do and do not
Do
- Get at least two written estimates for anything beyond a minor repair.
- Compare the scope of work, not only the total.
- Keep copies of the estimate, the invoice and the warranty.
- Photograph the equipment and the work area before and after.
- Check that the model and serial numbers on the invoice match your unit.
Do not
- Pay the full amount before work starts.
- Sign a blank or partly filled-in form.
- Let anyone bypass a safety switch, such as a limit or pressure switch, just to get the system running.
- Hire someone who knocks on your door after a hailstorm without checking them first. Storm season brings sellers who may not be around later.
- Assume your homeowner's insurance will cover a repair. Ask your insurer directly.
How Defendingloaded Heating & Air fits in
Use the request form to describe what is wrong. Your request is routed to independent providers who serve your part of the St. Louis area. Availability depends on each provider. Defendingloaded Heating & Air does not set their prices or schedules, and you may decline any of them.
Related guides
What to ask an HVAC provider in St. Louis before you hire: questions
Should I get more than one estimate?
For anything beyond a small repair, yes. Two or three written estimates show you how providers read the problem and what each one includes. Compare the scope of work line by line, not only the total. If the diagnoses differ a lot, ask each provider to explain what they found.
How do I check a provider's license?
Ask for the license number and look it up with the state or local office that issues it. Rules vary by place, so ask what applies where you live. Confirm that the name on the license matches the name on the estimate and the vehicle.
Is a diagnostic fee normal?
Yes, many providers charge one for the first visit. Some apply it to the repair and some do not. Ask before anyone comes out, and ask for the answer in writing on the estimate so there is no surprise on the invoice.
Get in touch
Have an AC or furnace problem? Send a request or call, and we will route you to an independent provider in our network. No obligation.
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