High-Efficiency Boilers
Modern heat, meaningful savings
A properly sized, high-efficiency boiler can cut heating bills dramatically while delivering more even, comfortable heat throughout your home.
What we do
High-Efficiency Boilers services we offer
- High-efficiency boiler installation
- Combi-boiler (heat + hot water) systems
- Boiler replacement & haul-away
- Near-boiler piping upgrades
- Outdoor reset controls
- Annual maintenance plans
Why homeowners choose us
The Mystic Valley difference
Load-calculated sizing
We size to your home's real heat loss — not just what's already there — for maximum efficiency.
Neat, code-forward piping
Our near-boiler piping is clean, serviceable, and built to last decades.
Rebates & financing
We help you access Mass Save rebates and financing on qualifying high-efficiency systems.
FAQs
Common high-efficiency boilers questions
- How long does a boiler replacement take?
- A straightforward swap is typically one long day. More involved projects with piping upgrades can take two to three.
- Will a new boiler really lower my bill?
- Replacing an aging 70–80% AFUE boiler with a modern 95%+ system typically produces noticeable annual savings, especially paired with proper controls.
Explore more services
Plumbing
Repairs, repipes, fixture installs, drain cleaning, and leak detection — done right the first time.
Learn moreHeating
Boiler service, radiator repair, and heating system diagnostics to keep your home warm all winter.
Learn moreCooling
Ductless mini-split installs and AC service that keeps your family comfortable through New England summers.
Learn moreReady to get started?
Tell us about your high-efficiency boilers project — most quotes answered the same day.