Lavallee Systems

Lavallee Systems says it has been in business for 35 years and lists a service area that includes Sudbury, Acton, Concord, Wayland, Weston and Wellesley. On Google it shows 5 stars from 118 ratings. Heat pumps, mini-splits and central air make up much of its heating and cooling work. A recent customer said Corey handled preventative maintenance and repairs on a heat pump plus hydronic system. A recent customer said Jimmy Bello serviced a mini-split system and answered questions about components and insulation. A recent customer said Lavallee installed a whole-house heating and cooling system, with Dan and Billy as the installers. A recent customer with a bad leak in a central air unit said they called on a Wednesday, two techs came on Friday, and the unit was fixed for a fair price. A recent customer said Corey and Jimmy got a pool heater going and saved them the $4000 cost of a new heater. Water systems and plumbing are the other half. A recent customer said Lavallee Systems acquired Advanced Water Quality and that Sean has serviced their Kinetico water systems for years. A recent customer with no water said Calvin diagnosed the problem on arrival and fixed it. A recent customer said Calvin and Ed installed a new filtration system. In 2025, a customer who came home to no heat in a Boston house said the company arrived an hour after the call and had the furnace back to normal for a reasonable fee. A 2025 customer said a pair of mini-splits went in over about a day and a half. In 2024, a customer said Kevin explained the state of a 30+ year old boiler and took time to show pictures.