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TRUSTED BY MILLIS, MA HOMEOWNERS

  • Average homeowner rating star icon4.5
    Average homeowner rating
  • Verified reviews icon768
    Verified heating and air conditioning services reviews

Verified Reviews for Heating And Air Conditioning Service pros in Millis, MA

*The Angi rating for Heating And Air Conditioning Service companies in Millis, MA is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Heating And Air Conditioning Service needs.

*The HomeAdvisor rating for Heating And Air Conditioning Service companies in Millis, MA is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Heating And Air Conditioning Service needs.

Last update on January 25, 2026

Find Heating and air conditioning pros in Millis

Avatar for Sila Heating, Cooling, Plumbing and Electrical
Sila Heating, Cooling, Plumbing and Electrical
4.5(
5,398
)
Central A/C - InstallElectric Furnace / Forced Air Heating System - InstallGas Furnace / Forced Air Heating System - Install+47 more

Serving Millis, MA and surrounding areas

Approved (Corporate)

In business since 1989

Free estimates

Emergency services offered

"Guy was hands down the best HVAC person we have ever had help us in Boston. Totally transparent, professional, easy to work with. If you need help, I would recommend asking for Guy to come out if possible."
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+6

63 neighbors recently requested a quote
Recommended by89%of homeowners
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Avatar for NETR Inc
NETR Inc
4.7(
78
)
Central A/C - InstallOil Furnace / Forced Air Heating System - InstallCentral A/C - Service or Repair+47 more

Serving Millis, MA and surrounding areas

Approved (Corporate)

In business since 1989

Free estimates

Emergency services offered

"

I called Kris U. in a panic because an unethical contractor had totally messed up our very expensive HVAC system, and the condensers had been sitting unconnected for 18 months! Called Sila, they had no idea what to do. Called Kris and he sent in Gregg H. to reconnect everything, drain the condensers and recharge them again. He did a great job and it turned out we did not have to buy new condensers -- hooray!

I highly recommend this company, since no one else was willing or had the inclination to tackle this.

"
SOUTH END CONDO RECEIVES MITSUBISHI DUCTLESS SYSTEM
SOUTH END CONDO RECEIVES MITSUBISHI DUCTLESS SYSTEM
SOUTH END CONDO RECEIVES MITSUBISHI DUCTLESS SYSTEM
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+9

24 neighbors recently requested a quote
Recommended by91%of homeowners
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Avatar for Cotti-Johnson Heating-Cooling-Electrical
Cotti-Johnson Heating-Cooling-Electrical
4.7(
166
)
Electric Furnace / Forced Air Heating System - InstallGas Furnace / Forced Air Heating System - InstallDuctless Mini-split Heating System - Install or Replace+4 more

Serving Millis, MA and surrounding areas

Approved (Corporate)

Super Service Award Winner

In business since 1948

Free estimates

Emergency services offered

"On time, neat, effective. Technicians were professional, personable and flexible. I gave a "B" on cost because I may have done better if I shopped around but having the company that was installing the HVAC install the electrical as well was a good convenience and one-stop shopping."
Navien Install
Backflow
Outdoor Shower
Well Tank Replacement
Filtration Installation

+62

68 neighbors recently requested a quote
Recommended by89%of homeowners
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Avatar for H L Bowman
H L Bowman
4.7(
409
)
Central A/C - InstallCentral A/C - Service or RepairElectric Furnace / Forced Air Heating System - Install+12 more

Serving Millis, MA and surrounding areas

Approved (Corporate)

In business since 1946

Free estimates

Emergency services offered

"Fantastic. In and out in within 2 hours. Cost $15,000 less than another Angie's List HVAC service person quoted me."
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+6

1035 neighbors recently requested a quote
Recommended by89%of homeowners
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Avatar for Everclean Air LLC
Everclean Air LLC
4.9(
41
)
Air Ducts & Vents - Clean

Serving Millis, MA and surrounding areas

Approved

Super Service Award Winner

In business since 2023

Free estimates

Emergency services offered

We are a dedicated air quality company committed to delivering exceptional service and professionalism to our valued customers. Our skilled technicians are trained in the latest air duct and dryer vent cleaning techniques. We serve both commercial and residential properties, improving indoor air quality, enhancing HVAC efficiency, and helping lower energy costs. Safety is our top priority, especially in dryer vent cleaning, where proper maintenance plays a critical role in preventing fire hazards. By staying updated with industry advancements, we deliver reliable and effective solutions tailored to each customer’s unique needs.

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+2

6 neighbors recently requested a quote
Recommended by57%of homeowners
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Avatar for Dr. Clean-Air Restoration
Dr. Clean-Air Restoration
4.9(
99
)
Air Ducts & Vents - Clean

Serving Millis, MA and surrounding areas

Approved

In business since 2014

Free estimates

Emergency services offered

"Very clean, professional and efficient. Explained the whole process and what steps to be taken to preform P.M. s on our HVAC system. We will have him back in six months for follow up maintenance."
Before
After
Response time1 day
Recommended by98%of homeowners
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Avatar for Turkey Heating and Cooling, Inc.
Turkey Heating and Cooling, Inc.
4.9(
22
)
Central A/C - Service or RepairHeat Pump - Repair or ServiceOil Boiler or Radiator Heating System - Repair+3 more

Serving Millis, MA and surrounding areas

Approved

In business since 2015

Warranties offered

Small jobs welcome

"Very Professional and Knowledgeable used them again for another service. A HVAC service"
HVAC
Response time3 hrs
17 neighbors recently requested a quote
Recommended by62%of homeowners
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Avatar for Rodenhiser Home Services
Rodenhiser Home Services
4.4(
522
)
Central A/C - InstallGas Furnace / Forced Air Heating System - InstallOil Furnace / Forced Air Heating System - Install+47 more

Serving Millis, MA and surrounding areas

Approved

In business since 1928

Emergency services offered

Warranties offered

"June 3, 2016- Rodenhiser Plumbing HVAC cost to diagnose and charge home central air conditioner $593.25 Rodenhiser personnel were prompt and professional. Based upon your reported figures, $593.25 seems high. Work done efficiently and effectively."
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46 neighbors recently requested a quote
Recommended by86%of homeowners
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Avatar for Duct Kings
Duct Kings
4.7(
406
)
Air Ducts & Vents - Clean

Serving Millis, MA and surrounding areas

Approved

Super Service Award Winner

In business since 1999

Free estimates

Emergency services offered

"Duct Kings came out quickly and spent one day thoroughly cleaning the vents and scheduled the aero-seal for another day. During the process they noticed an issue with their software and rather than ignoring it and continuing the work, they stopped and rescheduled to come back and finish when the equipment was working properly. They were thorough, respectful of my home (and my pets), and wonderful to work with. I highly recommend Duct Kings!!"
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7 neighbors recently requested a quote
Recommended by88%of homeowners
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Avatar for Landry Mechanical, Inc.- HVAC
Landry Mechanical, Inc.- HVAC
4.5(
107
)
Central A/C - InstallGas Furnace / Forced Air Heating System - InstallCentral A/C - Service or Repair+12 more

Serving Millis, MA and surrounding areas

Approved

Super Service Award Winner

In business since 2008

Emergency services offered

Warranties offered

"Excellent service. They are now my new HVAC contractor."
Mitsubishi Ductless
Furnace install
Water filtration
Stretching out during a hvac install
New heat pump and furnace

+50

Response time11 hrs
Response rate97%
52 neighbors recently requested a quote
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Showing 1-10 of 569
Heating and Air Conditioning questions, answered by experts

Deciding whether to replace just the AC coil or the entire system depends on the age of your unit and the overall cost. Replacing a coil is less expensive than a full system replacement, but it can still be a pricey repair. If your HVAC system is relatively new and still under warranty, or if the replacement cost is significantly lower than a new system, replacing the coil can be a worthwhile investment that restores efficiency and extends the unit's life. However, for older systems (nearing the end of their 10-15 year lifespan) or those with extensive damage, it is often more cost-effective to replace the entire AC unit. Mismatched coils in an older system can lead to inefficiency and future breakdowns, so a full replacement ensures optimal performance and avoids further costly repairs.

A calculation method that your HVAC contractor will use to ensure your system does what it's supposed to is measuring duct output, or its CFM. The calculation requires knowing the cross-sectional area of the ductwork and determining the air speed past any given point within it.

You should plan to change your AC unit's filter every one to three months, depending on the manufacturer's recommendations. You should also clean the coils at least once per year, but if you have pets or someone in your household has allergies, you might need to clean them more often. Fortunately, many pros will clean the coils and change the filter for you during an inspection, which you should schedule once or twice per year.

It depends on the size of the space you’re cooling down. If you’re looking for the most affordable way to cool an entire house over a long period of time, then central air will be more cost-effective. But when it comes to cooling down a couple of rooms or one floor, a window unit may be the cheaper option, with both a lower cost to install and less energy used to run.

High humidity, bad insulation, warmth from sunlight, and poor circulation are all reasons your home’s hotter inside than out. While this is what you want in the colder months, summer can become unbearable if this is a constant. Try to find the cause, but you need to remember that issues like this require a permanent fix (unless you want to bear down during the summer months).

The Millis, MA homeowners’ guide to heating and air conditioning services

From average costs to expert advice, get all the answers you need to get your job done.

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