Boiler Installation Plymouth County MA
No More Cold Nights or Surprise Breakdowns
Cooling
To help homeowners stay ahead of the heat, Dempsey Energy is offering our full 20-Point AC System Integrity Inspection for just $79 instead of $179.
Cooling
All Summer Benefits Of Our AC Tune-Up & Safety Inspection, Extends Lifespan of AC Unit, Prevents costly repairs, Improves energy efficiency, and Improves indoor air quality
Plumbing
Heating
Plumbing
HVAC
Licensed Massachusetts Technicians
Our team holds proper Massachusetts licensing and Oil Burner Technician Certificates, so your boiler installation meets all state codes and safety standards.
Over 30 Years Local Experience
Since 1992, we've helped over 12,000 homeowners across Southeastern Massachusetts with reliable heating solutions that last decades, not just seasons.
Same-Day Service Available
Fully stocked trucks mean we complete most installations and repairs without waiting on parts, getting your heat restored when you need it most.
Upfront Transparent Pricing
You know exactly what you're paying before work begins. No surprises, no hidden fees—just honest pricing from a team that's been here over 30 years.
Boiler Replacement Services Massachusetts
Modern Heating Built for New England Winters
A boiler replacement isn’t just swapping old equipment for new. It’s about sizing the system correctly for your home, choosing the right fuel type, and installing it to manufacturer specs so it runs efficiently for the next 15 to 20 years. That’s where three decades of experience matters.
We install and service gas boilers, oil boilers, electric systems, and combination units from all major brands. Whether you’re upgrading an aging furnace, replacing a failing boiler, or converting from oil to gas for better efficiency, our team explains every option. You’ll understand what you’re getting, why it matters for your specific home, and how it saves you money over time.
Massachusetts winters are long and brutal. Your heating system works harder here than in most places. That’s why we focus on high-efficiency models with AFUE ratings of 90 percent or higher—systems that convert more of your fuel into actual heat instead of waste, cutting your energy bills while keeping every room comfortable.
We Leave Our Customers Smiling
High-Efficiency Boiler Benefits Massachusetts
What Changes After Your New Installation
Your monthly heating bills drop by $60 to $200 because high-efficiency systems waste less fuel and deliver more usable heat to your home.
You stop calling for emergency repairs in January when a properly installed system runs reliably through weeks of below-freezing temperatures.
Cold spots disappear and every room reaches the temperature you set instead of some spaces overheating while others stay cold.
You pocket Mass Save rebates and federal tax credits worth $500 to $2,000 that reduce what you actually pay for the installation.
Buyers pay more for your home when they see a recently installed, energy-efficient heating system with years of warranty coverage remaining.
Annual maintenance costs less and breakdowns happen less often with modern equipment that has readily available parts and simpler designs.
When to Replace Your Boiler
Three Signs Replacement Beats Another Repair
Most boilers and furnaces last 15 to 20 years with regular maintenance. If yours is approaching that age and showing any of these signs, replacement makes more financial sense than another repair bill.
First, your energy bills keep climbing even though you haven’t changed your thermostat settings. Older boilers lose efficiency every year they run. What used to heat your home on one tank of oil now burns through more fuel to do the same job. That inefficiency costs you an extra $400 to $1,000 every winter, and it gets worse each year.
Second, you’re scheduling repairs more than once per heating season. A circulator pump fails one year, a gas valve goes out the next, then you need a new heat exchanger. Those repair bills add up fast—often $500 to $1,500 per call—and you’re still left with aging equipment that’s likely to fail again. When repair costs approach half the price of a new boiler installation, replacement is the smarter long-term investment.
Third, some rooms never warm up while others get too hot no matter how you adjust the thermostat. That’s often your boiler telling you it can’t maintain consistent output anymore, or that it was never sized correctly for your home in the first place. A properly sized new system solves that problem and makes your whole home comfortable instead of just the rooms closest to the unit.
Oil to Gas Conversion Massachusetts
Why Homeowners Convert to Natural Gas
Oil to gas boiler conversion is one of the most popular upgrades we handle across Plymouth, Bristol, and Norfolk Counties. The reasons are straightforward: lower operating costs, less maintenance hassle, and significantly better efficiency.
Natural gas systems typically cost 20 to 40 percent less to operate than oil heating. Most homeowners in our service area save between $800 and $2,500 per year on heating costs after converting. That adds up to substantial savings over the 15 to 20 year life of your system, often paying for the entire conversion within five to eight years. After that, you’re pocketing the savings every single winter.
Gas boilers also require far less maintenance. No more scheduling oil deliveries or monitoring tank levels. No soot buildup that requires annual cleaning. No worrying about oil tank leaks or environmental cleanup costs. Modern gas furnaces and boilers burn cleaner and have fewer components that wear out, which means fewer service calls and lower maintenance costs over time.
The conversion process involves removing your old oil equipment and tank, installing the new gas boiler, running new gas lines if your home doesn’t already have service, and setting up proper venting that meets current Massachusetts codes. We handle all permits, inspections, and coordination with your gas company from start to finish. You’ll also have access to Mass Save rebates that can reduce your upfront costs by thousands of dollars, making the switch more affordable than most homeowners expect.
Home Assessment and Sizing
We evaluate your home's heating needs, current system, and fuel options to recommend the right boiler or furnace size and type for your specific situation.
Transparent Quote with Rebates
You receive clear pricing that includes equipment, labor, permits, and all rebates you qualify for—everything spelled out before we start work.
Licensed Professional Installation
Our Massachusetts-licensed technicians install your system to manufacturer specifications and state code, handling all permits and inspections so it's done right.