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TRUSTED BY HARVARD, MA HOMEOWNERS

  • Average homeowner rating star icon4.6
    Average homeowner rating
  • Verified reviews icon313
    Verified heating and air conditioning services reviews

Find Heating and air conditioning pros in Harvard

Avatar for Druziako HVAC Inc
Druziako HVAC Inc
4.7(
157
)
Central A/C - InstallGas Furnace / Forced Air Heating System - InstallOil Furnace / Forced Air Heating System - Install+23 more

Serving Harvard, MA and surrounding areas

Approved

In business since 1990

Free estimates

Emergency services offered

"I have a two-story single family house. Last year, Druziako HVAC replaced my first floor AC with a Carrier heat pump. I quoted 5 companies, and Druziako was honest and gave me best pricing. The heat pump worked great in summer and winter. This year I hired them again to replace my 2nd floor AC. The whole team are friendly, helpful, and very patient. Installation went smoothly and quickly. I cannot be happier with the pricing and quality of the work. I will recommend them without any doubt. Thank you very much!"
Aprilaire Dehumidifier
Attic Air Handler
Duct Cleaning before and After
Attic Ductwork
Aprilaire Humidifier

+3

Response time12 hrs
21 neighbors recently requested a quote
Recommended by95%of homeowners
Avatar for Airco Home Comfort Services LLC
Airco Home Comfort Services LLC
4.7(
33
)
Gas Furnace / Forced Air Heating System - InstallCentral A/C - Service or RepairDuctless Mini-split A/C - Install or Replace+46 more

Serving Harvard, MA and surrounding areas

Approved

In business since 1998

Free estimates

Warranties offered

"Joe, the AirCo sales representative, was very professional. He actually asked for my feedback on priorities for a new boiler. This was important to me because the boiler sits below our family room, and the noise level of the boiler was as issue. His proposals listed several boiler options, based on heating efficiency, which were competitively priced. The installation was run by Steve, who was able to fit in the installation the next week. Steve, and his crews, were punctual and courteous, and the installation went smoothly. It's only been a week, but I am very pleased with my Bosch boiler, the quality of the work, the price paid, and the timeliness of the installation."
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+4

Response time2 days
5 neighbors recently requested a quote
Recommended by96%of homeowners
Avatar for NETR Inc
NETR Inc
4.7(
78
)
Central A/C - InstallDuctless Mini-split A/C - Install or ReplaceGas Furnace / Forced Air Heating System - Install+47 more

Serving Harvard, MA and surrounding areas

Approved (Corporate)

In business since 1989

Free estimates

Emergency services offered

"From receiving the quote to the installation and servicing NETR has been extremely professional and great to work with on this renovation project. The installation went very smoothly and every person on their team had a lot of experience. Further, the team was able to solve a number of tricky problems with our installation (such as running the electrical behind the walls, drilling a hole through the roof for the pipe, concealing the pump in the back of the closet). The installation happened on time and on schedule. I would highly recommend them to anyone looking for HVAC services at home."
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

31 neighbors recently requested a quote
Recommended by91%of homeowners
Avatar for Everclean Air LLC
Everclean Air LLC
4.9(
40
)
Air Ducts & Vents - Clean

Serving Harvard, 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

Response time7 hrs
Response rate100%
5 neighbors recently requested a quote
Avatar for Duct Kings
Duct Kings
4.7(
387
)
Air Ducts & Vents - Clean

Serving Harvard, 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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Response time2 days
Response rate100%
5 neighbors recently requested a quote
Avatar for Emerald HVAC LLC
Emerald HVAC LLC
5.0(
15
)
Central A/C - Service or RepairHeat Pump - Repair or ServiceHeat Pump - Repair or Service - For Business

Serving Harvard, MA and surrounding areas

Approved

Super Service Award Winner

In business since 2024

Free estimates

Small jobs welcome

"My central AC unit has been broken for several years. intermittently working during hot summers. I've had several HVAC companies come to diagnose and all of them told me different things: replace the whole system, new lines, etc. potentially costing tens of thousands of dollars. So I decided to troubleshoot by myself and pinpointed the issue: the filter dryer needed to be replaced. No company wanted to do this small job. I called Emerald HVAC and told them about my issue, they sent in José, who diagnosed the issue to be what I said. He replaced the filter dryer and the AC unit works perfectly now after several years! In short, Emerald HVAC will be my first choice for any HVAC work in the future. They are honest, professional, and reasonably priced. I recommend them without reservation!"
Response time1 day
Response rate91%
47 neighbors recently requested a quote
Avatar for JC Duct Cleaning
JC Duct Cleaning
4.9(
28
)
Air Ducts & Vents - Clean

Serving Harvard, MA and surrounding areas

Approved

Super Service Award Winner

Customers say: True professional

At John Carroll Duct Cleaning we are experts in the field, possessing over 35 years of experience and customer satisfaction. We offer free estimates, deep duct cleaning, and dryer vent cleaning performed with state of the art equipment and unparalleled customer service.

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Response time11 hrs
Response rate99%
14 neighbors recently requested a quote
Avatar for Village Home Services
Village Home Services
4.8(
16
)
Central A/C - InstallGas Furnace / Forced Air Heating System - InstallOil Furnace / Forced Air Heating System - Install+47 more

Serving Harvard, MA and surrounding areas

Approved

In business since 1978

Emergency services offered

Warranties offered

Village Home Services formally known as Village Electric and Village HVAC. We stand at the intersection of expertise and community spirit. With our plumbing, electrical, and HVAC services, we go beyond fixing problems; we enrich lives, one home at a time. In our village, your comfort and safety are our top priorities.

Response time12 hrs
Response rate96%
6 neighbors recently requested a quote
Avatar for Dr. Clean-Air Restoration
Dr. Clean-Air Restoration
4.9(
99
)
Air Ducts & Vents - Clean

Serving Harvard, 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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Heating and Air Conditioning questions, answered by experts

HVAC pros recommend that you replace your AC filter every one to three months to maintain optimal indoor air quality and ensure your HVAC system operates efficiently. However, factors such as filter type, household size, and environmental conditions may influence the frequency of replacement. Regular filter changes help prevent debris buildup, maintain airflow, and prolong the life span of your air conditioning unit.

One of the first signs of mold in an air conditioner is a musty smell. You're likely to notice the smell when the unit runs, from the air coming out of the vents or the unit itself. You may also be able to see mold growing on the unit, such as near the condenser coils or by the fan. In some cases, there may be visible mold by the vents.

Yes, a dirty air filter can cause a higher electric bill. That’s because clogged filters make it harder for air to flow through your HVAC system, which forces it to work harder and use more energy. According to the U.S. Department of Energy, replacing dirty filters can save you between 5% and 15% in utility costs.

To lower humidity quickly, run a dehumidifier or your home's air conditioner or turn on exhaust fans to extract moisture. These methods can quickly and effectively bring your home's humidity levels to a comfortable condition. However, you should consistently practice humidity-reducing tasks to maintain proper indoor humidity levels.

No, you should not attempt to replace an AC evaporator coil yourself. This is a complex task that must be performed by a licensed HVAC technician. The process involves handling hazardous and flammable refrigerants, which poses significant safety risks. Attempting a DIY replacement can also cause further damage to your HVAC system and will likely void its warranty. It is necessary to hire a local AC repair professional for this job.

The Harvard, 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.