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TRUSTED BY PRINCETON, MA HOMEOWNERS

  • Average homeowner rating star icon4.5
    Average homeowner rating
  • Verified reviews icon152
    Verified heating and air conditioning services reviews

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

*The Angi rating for Heating And Air Conditioning Service companies in Princeton, 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 Princeton, 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 August 26, 2026

Find Heating and air conditioning pros in Princeton

Avatar for Emerald HVAC LLC
Emerald HVAC LLC
4.9(
16
)
Central A/C - Service or RepairHeat Pump - Repair or ServiceHeat Pump - Repair or Service - For Business

Serving Princeton, MA and surrounding areas

Approved

Super Service Award Winner

In business since 2024

Free estimates

Small jobs welcome

"Customer service was good, stayed in contact with me and updated me on arrival time of technician. Technician was courteous, professional, and gave good insight on how to maintain system, helped troubleshoot some things. Looking forward to working with Emerald HVAC again."
Response time1 day
Response rate93%
29 neighbors recently requested a quote
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Avatar for Dr. Clean-Air Restoration
Dr. Clean-Air Restoration
4.9(
99
)
Air Ducts & Vents - Clean

Serving Princeton, MA and surrounding areas

Approved

In business since 2014

Free estimates

Emergency services offered

"Prompt response from initial quote request to showing up to do the work. Work was explained prior to start and any questions that I asked during the cleaning were professionally answered."
Before
After
Response time1 day
1 neighbors recently requested a quote
Recommended by98%of homeowners
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Avatar for Everclean Air LLC
Everclean Air LLC
4.8(
43
)
Air Ducts & Vents - Clean

Serving Princeton, MA and surrounding areas

Approved

Super Service Award Winner

In business since 2023

Free estimates

Emergency services offered

"Great !! Gabriel was on time and went right to work. He took pictures of duct work before and after. He supplied my wife and I N95 masks to wear during the cleaning keeping us safe. Gabriel was a true professional."
Additional Photos
Additional Photos
Additional Photos
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Additional Photos

+2

Response time7 hrs
Response rate100%
7 neighbors recently requested a quote
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Avatar for Duct Kings
Duct Kings
4.7(
409
)
Air Ducts & Vents - Clean

Serving Princeton, MA and surrounding areas

Approved

Super Service Award Winner

In business since 1999

Free estimates

Emergency services offered

"Duct Kings came to clean out a dryer vent. They were very quick with their work and did a great job. They even documented the job with before and after pictures and videos which we appreciated. I would highly recommend if you're looking for a fast and reliable duct company"
Additional Photos
Response time2 days
Response rate100%
11 neighbors recently requested a quote
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KERO HVAC
4.6(
32
)
Central A/C - Service or RepairDuctless Mini-split Heating System - Install or ReplaceHeat Pump - Repair or Service

Serving Princeton, MA and surrounding areas

Approved

In business since 2021

Free estimates

Customers say: Quick response

"Thought something was wrong with my Hvac system. Kero hvac called me and came out the next day. He was very honest and gave me great recommendations for my system. I would definitely recommend!"
Response time6 hrs
Response rate94%
Recommended by90%of homeowners
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Avatar for New England Quality Air Solutions
New England Quality Air Solutions
4.7(
296
)
Air Ducts & Vents - Clean

Serving Princeton, MA and surrounding areas

Approved

In business since 2005

Free estimates

Offers commercial services

"The staff at NEQAS provided a high quality of service and professionalism. They gave clear explanations and expectations of the work that need to be done in order to get the best air flow. The work was completed at the set timeline and the quality of care for our home was a top priority. They also gave us advice for care and future maintenance. Thank you for your service and we would recommend NEQAS for duct work to anyone."
Before Cleaning-Air Ducts
Air Duct - After Cleaning
Before-Air Duct Cleaning
Air Duct Cleaning
Before-Air Duct Cleaning-Commercial

+6

Recommended by98%of homeowners
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Avatar for Landry Mechanical, Inc.- HVAC
Landry Mechanical, Inc.- HVAC
4.5(
107
)
Central A/C - Install

Serving Princeton, MA and surrounding areas

Approved

Super Service Award Winner

In business since 2008

Emergency services offered

Warranties offered

"Ray and his team replaced both of my 20 year old HVAC units and did a great job. Ray listened to my requirements and proposed HVAC units best suited for the attic and basement. Very happy having the same temperature throughout the house."
Mitsubishi Ductless
Furnace install
Water filtration
Stretching out during a hvac install
New heat pump and furnace

+50

Response time11 hrs
Response rate97%
16 neighbors recently requested a quote
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Avatar for Landry Mechanical, Inc.- Electrical
Landry Mechanical, Inc.- Electrical
4.5(
111
)
Thermostat - Install or ReplaceThermostat - Repair or Reprogram

Serving Princeton, MA and surrounding areas

Approved

In business since 2008

Emergency services offered

Warranties offered

"Excellent service. They are now my new HVAC contractor."
Ductless Install
Various photos
Various photos
Various photos
Various photos

+52

Response time2 days
136 neighbors recently requested a quote
Recommended by81%of homeowners
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Avatar for Walshco LLC
Walshco LLC
5.0(
19
)
Oil Boiler or Radiator Heating System - RepairOil Furnace / Forced Air Heating System - Repair

Serving Princeton, MA and surrounding areas

Approved

In business since 2024

Free estimates

Emergency services offered

"The company was extremely professional in terms of using the hose properly .They did everything in a timely manner. Very clean and efficient work! Excellent customer service all around!"
roth 275
roth 275
Roth 160 Gallon Tank
Response time9 hrs
Response rate100%
49 neighbors recently requested a quote
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Avatar for D Day Plumbing
D Day Plumbing
5.0(
46
)
Electric Boiler or Radiator Heating System - InstallGas Boiler or Radiator Heating System - InstallGas Boiler or Radiator Heating System - Install - For Business+3 more

Serving Princeton, MA and surrounding areas

Approved

In business since 2012

Free estimates

Emergency services offered

"Damien was able to schedule the annual/preventative maintenance on my gas boiler to meet my scheduling needs. Damien arrived on time, performed the needed service within the time and cost quoted, and educated me on the condition of my boiler. I would recommend Damien without hesitation."
Cabinet - finished product
Cabinet rebuild (before picture)
Gas Hot Water Heater Install - Power Vented
Navien Wall Hung Water Heater
3 Bay Commercial Sink Install

+32

Response time2 hrs
Recommended by100%of homeowners
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Showing 1-10 of 329
Heating and Air Conditioning questions, answered by experts

AC drip pans last five to 20 years, depending on the material. Plastic AC drip pans last five to 10 years, while metal pans can last over 10 years. Plastic AC drip pans are vulnerable to cracking in response to temperature changes. Metal drip pans are prone to rusting over time, which can also lead to leaks.

You may be able to clean mold from your air conditioner in some cases. If the mold growth only takes up a small area, you can use either vinegar or bleach mixed with water to remove it. Larger areas of mold should be left to the professionals, though. It's also a good idea to leave mold removal to the pros if you are sensitive to mold or have asthma. 

You need to know the square footage of your home first. Multiply that number by 20, which will get you the BTUs (British Thermal Units) needed to cool your home efficiently. Homes up to 1,000 square feet usually need a 1.5-ton unit; homes 1,000 to 1,200 square feet usually need a 1.75-ton unit, and homes 1,200 to 1,400 square feet usually need a 1.9-ton unit. Talk to a local pro for more specific advice on your home. 

Yesh, heat pumps can easily cool homes when the weather reaches over 100 degrees Fahrenheit, just as powerful air conditioners can. The key is sizing the heat pump correctly for the size of your home and your climate. A local heat  pump professional can help you determine the right size and type for your home.

While many states do not have specific licensing requirements for HVAC companies, your local city or county might. It's always a good idea to check local requirements online and use a tool like Angi’s contractor license lookup to confirm that the company you’re considering is licensed. Regardless of licensing, you should always ensure the company you hire is fully insured to avoid potential lawsuits if a technician is injured on your property. Additionally, it is recommended to check if the company holds third-party certifications, such as North American Technician Excellence (NATE) certification or R-410A certification, which qualifies them to work with HVAC refrigerants.

The Princeton, 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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