
Heat Pump & Mini Split Service
in Millis, MA
Efficient heating — and cooling — from heat pumps and ductless mini splits. Our team serves Millis and nearby Medfield and Holliston.
- Electrical repairs
- Plumbing solutions
- Heating systems
- Electrical repairs
- Plumbing solutions
- Heating systems
24/7 emergency
plumbing serviceUpfront and
honest pricingLicensed and
insured plumbersClean and
professional service
Heat Pump & Mini Split Service for Millis Homes
Need heat pump & mini split services in Millis, MA? Our licensed technicians serve Millis and the surrounding Charles River Valley communities. Efficient heating — and cooling — from heat pumps and ductless mini splits. We repair, maintain and install systems that keep your home comfortable year-round.
In Millis, 44% of occupied homes heat with utility gas, 39% with fuel oil and 12% with electricity. Homes heating with oil often look at heat pumps or mini splits to supplement or replace part of their heating — we help size a system for the space.
We serve ZIP code 02054 and every community within 25 km of Millis, and our nearest neighboring service areas for heat pump & mini split service include Medfield, Holliston and Sherborn.

Millis, MA at a glance
- Homes heated with utility gas
- 44%
- Homes heated with utility gas
- Homes heated with fuel oil
- 39%
- Homes heated with fuel oil
- Average January low
- 22°F
- Average January low
- Heating degree days / year
- 5,757
- Heating degree days / year
Sources: U.S. Census Bureau ACS 2020–2024 5-year estimates; Open-Meteo historical weather (2015–2024).
Signs Your Heat Pump Needs Service
Noticed one of these? Catching it early usually means a simpler repair — call us before a small issue turns into an emergency.
- 01
Not heating or cooling
The system runs but the room never reaches the set temperature.
- 02
Ice on the outdoor unit
Heavy ice that doesn't clear during defrost.
- 03
Running constantly
The unit rarely shuts off.
- 04
Noises or leaks
Unusual sounds, or water dripping from the indoor unit.
Heating in Millis: What's Local
What the data says about homes in Millis — and what it means for heat pump & mini split services.
How local homes are heated
In Millis, 44% of occupied homes heat with utility gas, 39% with fuel oil and 12% with electricity. Homes heating with oil often look at heat pumps or mini splits to supplement or replace part of their heating — we help size a system for the space.
Source: U.S. Census Bureau, American Community Survey 2020–2024 5-year estimatesLocal heating demand
Millis averages about 5,757 heating degree days a year and dipped to -16.4°F in the past decade, so we size heat pumps for real local winter conditions rather than mild-weather ratings.
Source: Open-Meteo historical weather (ERA5 reanalysis), 2015–2024 averagesWinter in Millis
Based on the last ten years of weather data for Millis, nights drop to freezing or below on about 111 days a year, and on roughly 20 days the temperature stays below freezing all day. The average January low is 22°F. Cold-climate heat pumps are designed for winters like these, and proper sizing matters for comfort on the coldest nights.
Source: Open-Meteo historical weather (ERA5 reanalysis), 2015–2024 averages
Good to know about heat pump & mini split services
DOE says heat pumps are the most efficient form of electric heating, providing up to three times more heat than the energy they use, and can reduce electricity use for heating by approximately 50% compared to electric furnaces or baseboard heaters.
energy.govDOE describes ductless mini-split heat pumps as air-source heat pumps that can be installed in homes or additions without ducts, offering flexibility for zoning or heating and cooling individual rooms; cold-climate air-source heat pumps are designed specifically for cold climates.
energy.govDOE advises not to manually set back a heat pump's thermostat if it causes backup electric-resistance heat to come on, and to use a smart or programmable thermostat designed for heat pumps.
energy.gov
Simple, Stress-Free Service
From your first call to the final walkthrough, you always know what's happening and what it costs.
- 1
Call or book online
Tell us about your heating problem. No-heat emergencies are answered 24/7.
- 2
System diagnosis
Our technician inspects your system and explains the issue and upfront price.
- 3
Repair or install
We repair the failed part or install new equipment, working cleanly in your home.
- 4
Safety & performance check
We test the system, check safety controls and confirm your home is heating properly.
Our Heat Pump & Mini Split Services
Repair, maintenance and installation for ducted heat pumps and ductless mini splits.
- Heat pump diagnostics and repair
- Ductless mini split repair
- Mini split installation
- Heat pump replacement and installation
- Seasonal maintenance and filter cleaning
- Thermostat and remote control setup


Need help right now?
Call (555) 123-HUNT — 24/7Heating Service You Can Trust
24/7 emergency service
Plumbing and heating emergencies don't wait for business hours, and neither do we.
Upfront and honest pricing
You get a clear explanation and the price before any work begins.
Licensed and insured
Your home is in the hands of licensed, insured plumbing and heating technicians.
Clean and professional service
We respect your home, protect your floors and clean up when the job is done.
Serving Millis & Nearby Towns
Millis is in Norfolk County, part of the Charles River Valley area. We provide heat pump & mini split service in these ZIP codes:
- 02054
Heat Pump & Mini Split Service in nearby towns
- Heat Pump & Mini Split Service in Medfield, MA4.8 km from Millis
- Heat Pump & Mini Split Service in Holliston, MA6.6 km from Millis
- Heat Pump & Mini Split Service in Sherborn, MA8 km from Millis
- Heat Pump & Mini Split Service in Dover, MA10.7 km from Millis
- Heat Pump & Mini Split Service in Natick, MA12.9 km from Millis
Millis Heat Pump & Mini Split Service Questions
Still have a question? Call (555) 123-HUNT — 24/7 for emergencies.
Yes. Hunt Plumbing And Heating INC provides heat pump & mini split services throughout Millis (02054) and nearby Medfield, Holliston and Sherborn. Call (555) 123-HUNT or request service online.
Related Services in Millis
- Heating & HVACFurnace Repair & Installation in MillisFurnace repairs and new installationsLearn more
- Heating & HVACThermostat Repair & Installation in MillisThermostat repair & smart installsLearn more
- Heating & HVACHeating Maintenance & Tune-Ups in MillisSeasonal tune-ups that prevent breakdownsLearn more
- Heating & HVACEmergency Heating Repair in MillisNo-heat calls answered 24/7Learn more
- Heating & HVACBoiler Repair & Installation in MillisBoiler, pump & zone valve serviceLearn more
Sources for local information on this page

Ready to Solve Your Plumbing Problems?
From emergency repairs to new installations, our experienced team is here to deliver fast, reliable plumbing solutions you can trust. Get in touch today for a free, no-obligation estimate.

