Heating systems need to be serviced regularly to boost their performance and reduce the frequency of breakdowns as well as improve their energy efficiency. To get the best gas furnace service, it is recommended you make a list of the top HVAC firms in the city. From that list, it will be easier for you to narrow down the search and pick the right HVAC contractor for your needs. It is going to take time to find the right contractor, so you should not rush to make a decision.

Only licensed contractors with a proven track record should be given preferential treatment. In addition to that, you have to check whether or not the shortlisted firms are insured and bonded. An insurance policy will protect you from liabilities while a performance bond will help to ensure the furnace is serviced to your satisfaction.