Alliance Heating and Cooling

Alliance Heating and Cooling, operating from Woburn, Massachusetts, provides residential and commercial HVAC services to Boston and the surrounding suburban communities. With more than 15 years in the industry, the company has earned a perfect 5-star rating across 20 client reviews. The team holds proper licensing and certification, delivering heating, air conditioning, and preventive maintenance services throughout the Greater Boston metro area.

What distinguishes this contractor is their commitment to transparent, guarantee-backed service. Every new installation comes with a free estimate, and most repairs include a one-year warranty backed by a money-back guarantee. A live person answers the phone around the clock, 24 hours a day, 7 days a week for emergency calls. All technicians are certified, and the company services every make and model of heating and cooling equipment.

Reviewers consistently single out Jimmy, the owner, for his responsive approach and technical skill. When one customer heat shut down completely on a cold evening, Jimmy arrived same day, diagnosed the issue, and had the system running before the situation worsened. Another reviewer describes how Jimmy responded to their email within 24 hours, identified a faulty thermostat wire other contractors had missed, and restored heat the following day. A third client needed AC repair during an extreme heat wave and Jimmy fixed it promptly, earning a repeat customer.