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Verified Reviews for Heating And Air Conditioning Service pros in Lancaster, NH

*The Angi rating for Heating And Air Conditioning Service companies in Lancaster, NH 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 Lancaster, NH 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 21, 2026

Find Heating and air conditioning pros in Lancaster

Avatar for Jeff Mackay Mechanical, LLC
Jeff Mackay Mechanical, LLC
5.0(
7
)
Central A/C - InstallCentral A/C - Service or RepairDuctless Mini-split A/C - Install or Replace+13 more

Serving Lancaster, NH and surrounding areas

Approved

In business since 2005

Free estimates

Credit card accepted

"He was professional, courteous, very knowledgeable. Took care of all our needs for the project. I highly recommend him. You did a outstanding job."
Response time2 hrs
Recommended by83%of homeowners
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Avatar for Evan Jones- Master Electrician, LLC
Evan Jones- Master Electrician, LLC
4.0(
22
)
Electrical Baseboard or Wall Heater - InstallThermostat - Install or Replace

Serving Lancaster, NH and surrounding areas

Approved

In business since 2004

Free estimates

Small jobs welcome

"Excellent customer service from start to finish. Electrician Eric and technician Johnathan were very professional and did an outstanding job. Nice to see young men practicing their trade so well. Highly recommend them without any reservations. Satisfied customer."
Response time3 days
Recommended by88%of homeowners
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Avatar for SW WOOD LLC
SW WOOD LLC
5.0(
1
)
Central Air Cleaner - Repair or ServiceDucts & Vents - Install or ReplaceGeothermal Heating or Cooling System - Install+5 more

Serving Lancaster, NH and surrounding areas

Approved

Free estimates

Emergency services offered

Small jobs welcome

"I was very pleased with the work he did, he has a nice way of explaining things , I sure I will hire him again for other projects when needed he is a very pleasant person to deal with. Tank you Scott for being such a nice guy ."
4 neighbors recently requested a quote
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Avatar for Jay Scannell
Jay Scannell
New to Angi
Air Ducts & Vents - Clean

Serving Lancaster, NH and surrounding areas

Approved

Free estimates

Small jobs welcome

Offers commercial services

My name is Jay Scannell and I enjoy cleaning and making things spotless. My mother always made sure our house was clean as I was growing up and naturally I have liked to follow those similar footsteps and take it that one step further. I’d enjoy cleaning for you and your family if need be and I am open to anything you throw at me:).

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Avatar for Air Scrubbers Air Duct Cleaning LLC
Air Scrubbers Air Duct Cleaning LLC
3.9(
332
)
Air Ducts & Vents - CleanBoiler or Radiator Heating System - Install or ReplaceBoiler or Radiator Heating System - Install or Replace - For Business+48 more

Serving Lancaster, NH and surrounding areas

In business since 2000

Free estimates

Credit card accepted

"Excellent job, professional, considerate of my time.  I already notice less dust bunnies due to my cleaner air.
"
Recommended by77%of homeowners
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Avatar for North Alabama Technical Services
North Alabama Technical Services
4.9(
124
)
Boiler or Radiator Heating System - Install or ReplaceBoiler or Radiator Heating System - Install or Replace - For BusinessBoiler or Radiator Heating System - Repair or Service+47 more

Serving Lancaster, NH and surrounding areas

In business since 2010

Emergency services offered

Credit card accepted

"Excellent service, very fast response to my request for service, picked up laptop, diagnosed issues. Initially thought it was an OS update issue but the hard drive had failed along with other components (including 'CPU). Because other components were involved, a new solid state hard drive was put into a laptop with a working processor - same type CPU as in the failed unit. The laptop was repaired and returned in less than a week. This company picked up and dropped off the laptop (driving from Huntsville, AL (about 60-70 minutes)-- great service in this covid environment. I would recommend this company to my family./friends and will use again."
2014 Super Service Award Winner!
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Recommended by97%of homeowners
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Avatar for Hatch Family Electric LLC
Hatch Family Electric LLC
5.0(
6
)
Central A/C - Service or Repair

Serving Lancaster, NH and surrounding areas

Free estimates

Offers commercial services

"Gabe showed up when he said he would, completed the project in a timely, efficient and professional manner and was truly a pleasure to work with. I would highly recommend Gabe for any electrical work you need done!"
6 neighbors recently requested a quote
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Avatar for Hilltop Drain & plumbing
Hilltop Drain & plumbing
4.9(
12
)
Thermostat - Install or ReplaceThermostat - Repair or Reprogram

Serving Lancaster, NH and surrounding areas

In business since 2021

Free estimates

Credit card accepted

"quick response, very professional, Quality work. I recommend I we definitely hire again"
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+21

Recommended by100%of homeowners
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Showing 1-10 of 40
Heating and Air Conditioning questions, answered by experts

It is normal for the attic to be hotter than the rest of the house in the summer, but only by about 10 or 20 degrees. Attics that aren’t properly insulated or ventilated can reach temperatures of 130 degrees or more which can cause damage to the home’s structure, including the roof, wood framing, and HVAC system.

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.

A new HVAC system can increase your home's value by about 5% to 7%, which can translate to an added value of $2,500 to $3,000. The return on investment (ROI) can be around 30%, especially if you upgrade the entire system, including ductwork and insulation. Adding modern features like a smart thermostat can further increase your home’s value by making the heating and cooling systems more efficient and convenient. However, since a new unit can cost $10,000 or more to install, it's important to weigh the upfront cost against the potential increase in home value. For a specific assessment, it's best to consult a local AC installer.

Yes. It's not just AC filters that get dirty. Ducts can accumulate dust and dirt quickly. Insects and animals can also get into duct systems, creating many problems. Dirt build-up and unwanted guests can constrict the airflow and cause rooms not to cool evenly. You might also see higher energy bills because they're not working as efficiently.

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. 

The Lancaster, NH 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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