Furnace, Boiler & AC Repair and Mini Split Installation in Mattapoisett, MA
Armus Mechanical is based in Lakeville and serves Mattapoisett. We give free written estimates there for heat pumps, mini splits and boilers. AC, oil boiler and cooler repairs begin with a paid diagnostic visit, and 508-521-9477 is answered 24/7.
- Same-day repair
- Free estimates on new systems
- Financing through Wisetack
- Warranty on our labor
Hi! What's going on at your Mattapoisett home today?
At a glance
- Service area
- All of Mattapoisett, MA, including the village and the harbor
- Based in
- Lakeville, MA. We come to your home or business.
- Phone
- 508-521-9477, answered 24/7
- Specialties
- Heat pump, mini split and boiler estimates, central AC repair, oil boiler tune-ups, prep coolers
- Pricing
- Paid diagnostic on repairs; free written estimate on replacements
Based in Lakeville, we cover all of Mattapoisett. The phone is answered 24/7: 508-521-9477.
What do you need today?
RepairRepairs begin with a paid diagnostic visit, and in July 2026 we replaced a capacitor and a contactor on an AC condenser.HVAC repair →
MaintenanceIn February 2026 we cleaned and tuned an oil boiler in Mattapoisett. Damp, salty air near the harbor is hard on boilers, so a yearly tune-up is worth asking about.Maintenance plans →
ReplacementHeat pumps, mini splits and boilers in Mattapoisett begin with a free written estimate.New system quote →
EmergencyMattapoisett emergency? Emergency heating and AC service available. Call to arrange a visit. In Mattapoisett, phone 508-521-9477; it is answered 24/7.Emergency heating & AC · 508-521-9477 →Recent work in Mattapoisett
Between April 2025 and October 2026 we completed 3 jobs in Mattapoisett.
- July 2026, AC condenser. Replaced the capacitor and contactor and cleaned the coil.
- February 2026, Oil boiler. Cleaned the boiler and tuned it up.
Updated October 2026
Heating & Cooling Services in Mattapoisett
Mattapoisett work leads with heat pump, mini split and boiler estimates, then AC repair, boiler upkeep and cooler service.
Heat pump estimates
Mattapoisett’s older village houses and summer cottages often lack ducts. A cold-climate heat pump is sized to the rooms you use and set out in a free written estimate.
Mini splits
A wall unit or a ceiling cassette can serve a room, an addition or a whole floor. A heat pump or mini split installation starts with a free written estimate.
Boiler tune-ups and replacement
We cleaned and tuned an oil boiler in Mattapoisett in February 2026. When a boiler is past repair, a free written estimate comes before any work.
Central AC repair
Each central AC repair begins with a paid diagnostic visit. In July 2026 we replaced a capacitor and a contactor on an AC condenser in town.
Cooler service for businesses
In February 2026 we worked on a Mattapoisett prep cooler. The page lists the equipment we service.
Seasonal maintenance
Summer cottages sit idle part of the year. A visit before you open or close the house avoids surprises.
Mattapoisett Neighborhoods We Serve
We serve all of Mattapoisett, including these areas:
- Mattapoisett Village and the harbor
- Ned’s Point and Mattapoisett Neck
- the Mattapoisett River side of town
Nearby towns we also serve: Fairhaven, Rochester, Acushnet, Wareham, New Bedford, and Marion.
What are Mattapoisett homes like for heating and cooling?
Mattapoisett is a harbor town of older village homes, shingled summer cottages and larger waterfront houses on Buzzards Bay. Many cottages have been winterized and are lived in year-round, while others are still used only in summer. Salt air and humidity are hard on outdoor units and boiler jackets near the water. Natural gas is limited, so oil and propane are common heating fuels.
Which utility and rebate program applies in Mattapoisett?
Eversource supplies Mattapoisett’s electricity. Eversource customers can ask about Mass Save heat pump rebates and the 0% HEAT Loan. We check what is in effect when we write the estimate.
Commercial refrigeration in Mattapoisett
Mattapoisett businesses can call 508-521-9477 to arrange commercial refrigeration service, since the town is on our coverage list. In February 2026 we worked on a Mattapoisett prep cooler. The commercial refrigeration repair page describes the equipment we service.

Family owned and operated out of Lakeville, licensed and insured in Massachusetts.
We fix, maintain and install heating, cooling and water-heating systems. We do not sell equipment on its own or repair household appliances.
Available for new systems through Wisetack via Housecall Pro, subject to credit approval. Estimates on new systems are free.
Seasonal plans keep your system running and catch small problems before the first freeze. Ask about yearly maintenance options.
Every repair and installation carries a warranty on our labor on top of the manufacturer's equipment warranty, written on your quote.

Mass Save Heat Pump Installer Network participating contractor.
Rebates and the 0% HEAT Loan available.
Mattapoisett Furnace, Boiler & AC Questions, Answered
Do you service oil boilers in Mattapoisett?
Yes. In February 2026 we cleaned and tuned an oil boiler there. See boiler repair and replacement.
My Mattapoisett AC will not cool. Where do I start?
Check the thermostat, the filter and the outdoor unit’s breaker. If the system still runs warm, call 508-521-9477, and the visit begins with a paid diagnostic.
Can you reach Mattapoisett in an emergency?
Emergency heating and AC service available. Call to arrange a visit. Mattapoisett callers can phone whatever the hour; the line is answered 24/7.
Does salt air shorten equipment life near Mattapoisett Harbor?
It can: salt and damp wear on outdoor coils, fittings and boiler jackets. Booking a cleaning and inspection every year keeps that wear in check.
Do you service prep coolers in Mattapoisett?
Yes. We worked on a Mattapoisett prep cooler in February 2026. See commercial refrigeration repair for the equipment we cover.
How do I book a Mattapoisett visit?
Phone 508-521-9477 when something fails; the line never closes. For planned work, send the form or call; we confirm your Mattapoisett visit by text.
Brands we install in Mattapoisett


- Lochinvar


- Triangle Tube


- Energy Kinetics



- Oxbox









- Aprilaire


Furnace, Boiler & AC Service in Mattapoisett
Same-day repair. Call 508-521-9477, or tap Book ASAP and the office confirms your visit by text.
