Services from
SJ Kowalski Inc

Serving both Residential and Light Commercial customers SJ Kowalski Inc is ready to help you.

Installing & Servicing High-Efficiency Heating & Cooling Systems Since 1972

Get REady For Cooling Season!

With Summer approaching it's important to gear up for the warmer weather!



We stock the best Air Conditioners and Mini Splits from Trane and Mitsubishi, call today for your service!

  • A/C Service
  • Mitsubishi Mini Split System Service
  • Geothermal Service Near Me
  • Air Conditioner Repair Near Me

Goodman Furances
Mitsubishi Mini Splits
Cooling Service

Book Repair, Maintenance, or Installation Today

See What Our Customers Are Saying

     J . S from Drums , PA


"We had our new heat pump installed today. The guys did a great job. Very professional and answered all my questions. Jimmy took the time to explain how everything worked. When they were finished, they made sure everything was cleaned up. I highly recommend their services."

Heat Pump Installation

     J . Z from Hazle Twp, PA


"Woke up to a leaking water heater. Within an hour and a half, their technicians were here with a replacement. Fast, courteous, professional service and reasonably priced. They are my go to HVAC specialists deserving of a 5 star rating."

Water Heater Service

     T . H from Hazleton, PA


"Excellent, Excellent, Excellent! Very Professional with honest and exceptional service. We had no air conditioning/heat pump wouldn't run on the worse day of the year. Kowalski had a technician (Jake) sent out in no time, he diagnosed the problem within a few minutes, had the parts he needed with him and had the system up and running in no time. "

AC Repair

S. J. Kowalski, Inc.starstarstarstarstar4.9 / 5

141 Total Reviews /files//kowa-logo.jpg570-455-2600$1034 HARWOOD ROAD, HAZLE TOWNSHIP PA

Schedule Heating, Air Conditioning Service with SJ Kowalski Inc

S. J. Kowalski, Inc. has been serving the heating, air-conditioning and plumbing needs of the greater Hazleton and surrounding areas since 1972. We install high-quality equipment from today’s industry leaders like Trane, Mitsubishi, Rinnai, Honeywell and Triangle Tube while providing “round-the-clock” 24 Hour Emergency Service. We are a family owned and operated business and the area’s only Trane “Comfort Specialist” dealer.

It's important to get ready for the upcoming Winter season, getting your repairs and necessary services out of the way early will save you money and peace of mind in the long wrong. If your furnace, Mitsubishi mini split, boiler or heat pump breaks down mid winter that's a big problem. We provide expert service and preventative maintenance to make sure this doesn't happen.

At SJ Kowalski Inc we are committed to providing the best products and solutions to help lower your energy costs and keep your family safe and comfortable.

The team at SJ Kowalski Inc

Family Owned & Operated
since 1972

Our Accreditations



A/C installations in Hazleton
A/C

Referral Program

Refer our services to your neighbors, friends and family and receive a gift if they schedule service with us.

Get $100 off your bill or account credit with a installation referral!. Click the button below to fill out the form and let us know you referred someone.

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Residential
Repair, Maintenance & Installation

Full HVAC Services

Commercial
Repair, Maintenance & Installation

Check Out Our Services

S. J. Kowalski, Inc.starstarstarstarstar4.9 / 5

141 Total Reviews /files//kowa-logo.jpg570-455-2600$1034 HARWOOD ROAD, HAZLE TOWNSHIP PA

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