Quick Tips:

•  Pick a contractor who is established in the industry and specializes in heating and air conditioning.

• Confirm that your contractor can provide an array of indoor air quality options, e.g. Whole House Air Exchange units with HEPA filtration.

•  Ask for proof of liability and workmen's compensation insurance.

•  Make sure that they file the appropriate permits. Having the unit inspected provides assurance that the job meets code requirements and is safe. It is in your best interest to make sure that a contractor does not 'cut corners' by not filing a permit should there be any problems with the installation.

•  Ask if they provide 24-hour emergency service 365 days a year. Don't be shy to phone the company after hours to prove its claim.

•  Ask if a company's technicians are fully trained and certified.

•  Verify that the contractor you hire is the contractor that will be doing the work and that they will not be using sub-contractors.

•  See if both estimates are for the same size and efficiency equipment.

•  Verify that competing estimates offer the same warranties.

•  Check to see that all estimates are providing the same things. When getting a complete new system you should make sure the following are included: thermostat, new copper line sets, ductwork alteration, electrical disconnects, flue piping, and a new cement pad for the air conditioning unit.

•  Beware of an estimate if the price is much lower than your other estimates.

• Ask if they provide a money back guarantee in writing based on your satisfaction.? Change or clean filter(s) at least every three months.

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