Heater Repair companies in Fort Worth are various sizes and various reputations. When you want a great price and great service, Texas Discount Air based out of Fort Worth will provide both.
Texas Discount Air does heating repair, AC repair, and Heat Pump repair, plus all other HVAC repairs and installations. They are very reasonable price-wise. They are licensed and insured and give expert advice.
Their phone number is 682-214-HVAC(4822). They are a 24 hour service with $49 service calls that include the diagnosis fee. Sometimes they offer specials for heating repairs that include waiving the service fee if you go with the work.
If you want to find out if a company is licensed by the state to do HVAC work, you can research every company by going to www.tdlr.texas.gov. You will see if a company has a legitimate license number issued by the state.