Rated Best HVAC Company For Waltham, Lexington, Weston, Newton And Belmont!

Emergency Service

(781) 899-3984

My family has used LeBlanc over the years and have found them to always be reliable and very good. Recently they proved themselves to be even better. During this terrible heatwave, my elderly parent’s AC stopped working. I immediately called LeBlanc and explained the situation. I’m well aware that during heatwaves they are especially busy. I expressed my concern for my parents and their well-being. During the day I was contacted several times and told they would do their best to get there. And they certainly did!!! Randy went to their home the same day and was able to quickly fix the problem. We highly recommend LeBlanc for their service, dependability and compassion! Thanks Randy and LeBlanc Team!

- Amelia Foley

I was very pleased with the professionalism being given by the technicians when they arrived. They were efficient, polite, and got the job done quickly but took care in the repair. I thought LeBlanc did an outstanding job and I would highly recommend them to others if I were to be asked. I look forward to future maintenance and we are very grateful for the work performed.
- Timothy Omeara

Called after a long memorial day weekend when my AC went out, shortly followed by my entire HVAC system dying. LeBlanc had a technician to my house in a few hours, and the problem was traced and repaired the next day. Absolutely pleased with the speed, professionalism, and quality of the services provided. Would not hesitate to recommend.
- Seth Newport

Our hot water heater needed to be replaced. While chatting with a friend she recommended LeBlanc Mechanical. I hadn’t had good experiences with similar companies in the past. Our experience with LeBlanc’s phone representative and, several hour later, one of their technicians was excellent. The new hot water heater was installed quickly and at an affordable cost. What a relief. Definitely give LeBlanc Mechanical a try.
- James Mortenson

We have been customers of LeBlanc Mechanical for 30 years. LeBlanc has installed two complete HAVC systems and flawlessly serviced them. They have always been there when we needed them. One of the best service companies we have used over the past 30 years.
- Alan Wright

I was away for a few days and switched on the heat via my nest app a few hours before as I usually do. However, when I came home my heating had not started working and it was 44 F in my living room. I called Randy from LeBlanc Mechanical and one of his service guys came out right the same day. He detected the failure of the motor within minutes, went to get the new one, and built it right in. He also explained how my heating unit works and what to pay attention to. Their responsiveness and professionalism are outstanding, I highly recommend LeBlanc Mechanical.
- Alexandra Haueisen