When seeking a new contractor, ask loved ones for referrals. They'll often have already had someone in for similar work and will know who to trust and who to avoid. If your family hasn't used anyone, ask co-workers or other people you trust in your community for some references.
Get any agreement with an HVAC contractor in writing. Some contractors try to skip http://www.lowes.com/Heating-Cooling/Air-Filters/_/N-1z0znaz/pl over this step and charge customers a fortune. If you have a certain price and warranty in writing, they cannot go back and change this information. If they do, they could have a lawsuit on their hands.
If you do have a good experience with a HVAC product or contractor, let others know. Go online and post a review so that people can easily find out who and what brands to trust. At the same time, you can check reviews online to learn more yourself about what's available.
Have the HVAC system checked twice a year at the least. Your system should be inspected in Spring and Fall. Even if you can't see anything wrong, checking it may help you locate and repair some possible issues.
The correct HVAC system should have sealed air ducts to minimize heating or cooling loss as air travels to different rooms. The heating or cooling requirements of different rooms in the home should be taken into consideration. There is no reason to increase energy usage by controlling the temperature in rooms that are used very little.
Look to your neighbors and family to get recommendations of good HVAC specialists. Likely there's someone you know who's already done a ton of research. Use this knowledge to help get you the best specialist you can. This can save you many hours of research time and money too.
http://www.youtube.com/watch?v=h31lAMh5dsg
