Top-rated heating and air conditioning pros.

Get matched with top heating and air conditioning pros in Williamstown, PA

Enter your zip and get matched with up to 5 pros

Need a pro for your heating and air conditioning service project in Williamstown, PA?

Select your specific project to find the pro for you.

Verified Reviews for Heating And Air Conditioning Service pros in Williamstown, PA

*The Angi rating for Heating And Air Conditioning Service companies in Williamstown, PA 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 Williamstown, PA 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 June 05, 2026

Find Heating and air conditioning pros in Williamstown

Avatar for Jason E Brubaker, LLC
Jason E Brubaker, LLC
4.8(
39
)
Central A/C - Service or RepairGas Furnace / Forced Air Heating System - RepairOil Furnace / Forced Air Heating System - Repair+3 more

Serving Williamstown, PA and surrounding areas

Approved

In business since 2001

Warranties offered

Credit card accepted

"Arrived on time and were very knowledgeable on the operation of our heating system. (System 2000) Thanks for a well done and in a timely manner!"
High efficiency Propane furnace
High efficiency RheemAir conditioning
New air conditioning
New air conditioning
New air conditioning

+8

Response time1 day
13 neighbors recently requested a quote
Recommended by82%of homeowners
Request Quote
Avatar for E & G Heating & Air Conditioning, LLC
E & G Heating & Air Conditioning, LLC
4.8(
44
)
Central A/C - Service or RepairElectric Furnace / Forced Air Heating System - RepairElectric Furnace / Forced Air Heating System - Repair - For Business+13 more

Serving Williamstown, PA and surrounding areas

Approved

In business since 2014

Emergency services offered

Credit card accepted

"Absolutely amazing! I would recommend Edwin to anyone looking for an HVAC technician. I got home from work and entered my 90 degree home. I call E & G and he responded in 20 minutes! He diagnosed and fixed the problem for a very reasonable price."
inside A/C
A/C install
condenser a/c unit
condenser unit
oil furnace

+65

Response time6 hrs
Recommended by100%of homeowners
Request Quote
Avatar for CLS Home Services, LLC
CLS Home Services, LLC
5.0(
14
)
Heat Pump - Install or ReplaceDuctless Mini-split Heating System - Install or ReplaceElectric Furnace / Forced Air Heating System - Repair+9 more

Serving Williamstown, PA and surrounding areas

Approved

In business since 1997

Free estimates

Credit card accepted

"Came out fast professionally installed friendly would recommend to anyone"
Response time1 day
1 neighbors recently requested a quote
Recommended by100%of homeowners
Request Quote
Avatar for Central Penn Duct Cleaning
Central Penn Duct Cleaning
4.9(
23
)
Air Ducts & Vents - Clean

Serving Williamstown, PA and surrounding areas

Approved

Super Service Award Winner

In business since 2016

Free estimates

Emergency services offered

"Michael did an excellent job cleaning our dryer duct vent - the proof was in the before and after photos - amazing! He was pleasant, professional and explained each step in the process. He went above and beyond to ensure he removed all of the lint. The cleaning took less than an hour. I would highly recommend and will us this service again. Thanks so much, Michael!"
Response time9 hrs
Response rate100%
8 neighbors recently requested a quote
Request Quote
Avatar for Higher Degree Mechanical
Higher Degree Mechanical
5.0(
4
)
Central A/C - Service or RepairHeat Pump - Install or ReplaceCentral Air Cleaner - Repair or Service+8 more

Serving Williamstown, PA and surrounding areas

Approved

In business since 2022

Free estimates

Credit card accepted

"Very clean and conscientious about the house. I appreciated the extra care that went into making sure he didnt leave behind a mess. Rey is extremely professional and explained everything he did and how it effects the unit as a whole."
Higher Degree Mechanical
23 neighbors recently requested a quote
Request Quote
Avatar for House Tutor LLC
House Tutor LLC
5.0(
15
)
Central A/C - Service or RepairHeat Pump - Repair or ServiceGeothermal Heating or Cooling System - Service+1 more

Serving Williamstown, PA and surrounding areas

Approved

Super Service Award Winner

In business since 2024

Free estimates

Emergency services offered

"Cody is amazing Located the issue and repaired it in a timely manner. , leaving no mess at all While in my home he discovered a gas leak, repaired that Most importantly he arrived on time and was prepared to fix the issue I definitely recommend House Tutor for all your HVAC needs and more"
High Efficiency
Looks Tough?
Service?
Old an Broken
New and Efficient

+2

Response time2 days
2 neighbors recently requested a quote
Request Quote
Avatar for Total Heating & Cooling, Inc.
Total Heating & Cooling, Inc.
4.3(
12
)
Geothermal Heating or Cooling System - Install

Serving Williamstown, PA and surrounding areas

Approved

In business since 1988

Free estimates

Credit card accepted

"Did a great job, I talked to 3 different contractors, glad I did Chuck educated me every step of the way. Secco Home services ripped me off for $800 to diagnose and charge my system then came back with a equipment quote that would have been wrong for the situation. Avoid Secco at all cost. Call Total Heating and Cooling!!"
Geothermal unit 1
Geothermal unit 7
Geothermal unit 2
Geothermal unit 3
Specialty ductwork 1

+10

Response time7 hrs
Recommended by100%of homeowners
Request Quote
Avatar for Mid Atlantic Geothermal
Mid Atlantic Geothermal
3.3(
8
)
Geothermal Heating or Cooling System - Install

Serving Williamstown, PA and surrounding areas

Approved

In business since 2009

Free estimates

Emergency services offered

"Absolutely the best price I got. The techs worked efficiently and cleaned up after every day of work. I would highly recommend this company."
Recommended by83%of homeowners
Request Quote
Avatar for TAS Contracting and Mechanical Solutions
TAS Contracting and Mechanical Solutions
New to Angi
Central A/C - Service or RepairCentral Air Cleaner - Repair or Service

Serving Williamstown, PA and surrounding areas

Approved

Emergency services offered

Warranties offered

Small jobs welcome

We are a family owned and operated company that works closely together to provide the best service possible for every customer we have the opportunity of servicing. \nAt TAS we provide high quality work for an affordable cost to our customers \nWhether you are looking for a remodel of your home or a specific project like HVAC, PLUMBING, ELECTRICAL, service and install; we have someone ready for the job.\nCan supply approximate pricing via photo or through messaging. \nOwner: my name is Blayze, I am 25 years old and have been part of the HVAC Industry for 7 years. I was a salesman and store manager for a HVAC supplier for 2-3 of those years that gave me knowledge of what products in the industry are best quality. you can be assured that you are getting the best of the best when it comes to quality. I work closely with my younger brother Ryder who has also been in the industry for 5 years and is a Ductwork master. We both look forward to meeting with you in the future

Blayze Scheidt
Request Quote
...
Showing 1-10 of 138
Heating and Air Conditioning questions, answered by experts

No. HVAC, which stands for heating, ventilation, and air conditioning, includes all of the systems that work together to regulate a building’s temperature and humidity levels. In comparison, air conditioners only provide cooling. You can have an air conditioner as part of your HVAC system, but not all HVAC systems include air conditioners.

Condensation forms when warmer, outside air combines with cooler air in your ductwork. This can happen when there are leaks in your air ducts, your HVAC system has a dirty air filter, or there’s a lack of insulation around the ducts. To prevent it from happening, replace your HVAC filters as directed. Also, once every five years, hire a local air duct cleaner to clean and inspect them.

Vents may blow air even though the air conditioning system is off because of the pressure difference between indoor and outdoor air or drafts from leaky ducts. Check for leaks or drafts in the ductwork or around windows and doors.

One of the fastest ways to unfreeze an AC unit is to turn off the unit and, if it’s warm outside, use the fan-only mode to help blow warmer air through the unit to speed up the defrosting process. While it may be tempting to use a hair dryer to defrost the air conditioner, that high heat can damage the coils.

After defrosting, if you can safely solve the issue with a fix like changing the filter, go ahead and do so. Otherwise, call in a pro before turning your AC back on.

If you don't clean your AC evaporator coils, dirt and debris will build up, which impairs the system's ability to transfer heat. This forces the unit to work harder, leading to inefficient performance, higher energy bills, and frequent breakdowns. Over time, neglected coils can corrode, which may cause refrigerant leaks, or develop mold, ice buildup, and a clogged condensate drain, resulting in poor air quality and an uncomfortable home.

The Williamstown, PA 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.

See all articles