Furnace
- Replace
- After 15 years
- Service
- Once a year, in the fall















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Heating
Furnaces, boilers, heat pumps, and water heaters. We service and install gas and propane systems.
We take no-heat calls nights, weekends, and holidays. Those calls cost more: they're billed at an expedited rate so we can get to you fast.
What we work on
When to service each one, and when it's time to think about replacing it.
We install Mitsubishi Electric, Bosch, Trane, and Viessmann equipment, sized to your house rather than whatever is currently installed. A lot of older equipment is oversized, especially in homes that have since been insulated, and a system that's too big for the house doesn't run efficiently.
Boilers: we install wall-mounted, steam, and traditional floor-standing boilers. Water heaters, tank and tankless: replaced when yours fails, or serviced when it needs it.

Heat pumps
Heat pumps move heat instead of making it, so one system heats in winter and cools in summer. We service all types of heat pumps, ducted and ductless, all different brands.
The rebates require a contractor in the Mass Save Heat Pump Installer Network. Reliable HVAC is in the network.
"They also took full ownership of the entire MASS SAVE refund process, which was seamless."Aditya, Google review
Repair or replace
Not sure? Call (508) 560-6595. We diagnose, explain what's needed, and give you an estimate before any repair.

New construction
We do a lot of new construction, including work for contractors.
Reviews
We returned from Thanksgiving to no heat in our house. … Ian showed up within hours of receiving my call. The problem was much larger than we anticipated and I ultimately needed the entire furnace replaced. Ian and his team were able to find a new unit and have it installed the same day.
Can’t thank them enough. I reached out on Monday 11-18-2024 by 11-20-2024 the new heating system was installed and ready to go. They do clean and fast work. Thank you Ian to you and your team my family appreciates you.
Reliable was responsive, fast, affordable and restored my heat!! Ian is a knowledgeable technician and Alyx is very responsive on dispatch. I have used them before and will call on them again with any HVAC needs. Wish all vendors were this good.
FAQ
Call (508) 560-6595 and we'll tell you when we can get there. We take no-heat calls nights, weekends, and holidays. After-hours, weekend, and holiday calls are billed at a higher, expedited rate. Please call rather than use the form for emergencies.
It depends on what's wrong. We diagnose, explain the details of what's needed, and provide an estimate prior to any repairs, so there are no surprises.
An industry study puts typical furnace life at 15–20 years and boilers at 13–21. ENERGY STAR suggests considering a replacement once a furnace or boiler is more than 15 years old.
It depends on your home, and we install both. Mass Save offers rebates of up to $8,500 on qualifying heat pump systems in 2026, and 0% HEAT Loan financing up to $25,000 with lender approval.
Wall-mounted, steam, and traditional floor-standing boilers, for gas and propane.
Yes. We service and replace standard tank and tankless water heaters. Tankless units should be flushed at least once a year to clear mineral buildup. See tankless flushing.
Get started
Tell us what's going on and we'll call you back. We reply to every request within one business day.
Faster to talk? (508) 560-6595