Comfort Central has been my go-to HVAC company since they installed my Carrier unit many years ago. I believe in ongoing preventative maintenance, and use their cleaning/checkup through a reduced rate service contract. The staff is friendly, professional, and capable of providing whatever service is required. The service techs are well-trained, always punctual, and provide professional attention to ensuring that my HVAC unit operates as designed. This is a six-star company on a five-star scale.