There are many ways to find an appropriate contractor. Word of mouth seems to be the best way to know you are getting an experienced contractor. Ask a friend!
There are many different air conditioning contractors in the Houston area. A good place to start would be Church Services. Other companies include Abacus Plumbing and Air Conditioning, Ron's Downtown Auto Services, John Moore Services and the Aircon Service Company
Tarheel Service (3202 Oakbury Rd, Ph-(336) 226-0917), Rimmer's Heating & Air Conditioning Service Inc(Ph-(336) 578-2866),Duggins Mechanical (3125 Tucker Street Ext, Ph- (336) 226-2164) are some popular air-conditioning contractors in Burlington, NC.
Midland Heating & Air Conditioning is located in Irmo, South Carolina. You should get a good quote on a new central heating & air conditioning system there. 803-749-9300 You can look online for prices in your area on heating air conditioning systems. You can also check out magazine and the newspapers for prices. You might even be able to look on Craigslist.com to find prices.
If you are trying to find more information on available heating and air conditioning schools, visit http://www.directoryofschools.com/Heating-Ventilation-Air-Conditioning-and-Refrigeration-School.htm for a list of qualified schools. Many of these options are affordable.
You would need to look up contractors in your area to find the answer to this. Here are some websites where you can see reviews and prices of HVAC contractors in your area:http://www.contractors.com/contractor-search/?type=hvac&adid=11879&filter=&cid=10438515816&mkwid=S041411mv00224http://www.homeblue.com/air-conditioning-1.htm
I would check the yellow pages to find a contractor to do heating and air conditioning. I would also asks friends and family for a recommendation of a good company to use.
Kalex Energy Co., 2 Brothers Heating & AC and Tri-County Heating and Air Conditioning are great companies for installing air conditioning. They are reliable and conveniently local.
A Total Comfort Contractor is a good heating and cooling service. They provides you the powerful Unique Competitive Advantage over 99% of the contractors in the industry.
It definitely a good idea to get a degree from a heating and air conditioning school to be a worthy choice. But your question is you have to make your own decision before asking for help.
You can find good contractors in your area by looking through the yellow or white pages. You can also ask around in the neighborhood. Also, you can visit one of your local hardware stores.
You can find a listing of commercial electrical contractors in the New York area at www.electriciansnetworks.com/. Another good website is www.findoha.com/Electrical-Contractors/New-York.html
Absolute Comfort Heating & Cooling are specialists in central air units and their repair in the Detroit area, and can be found online via hvac.networx.com.