Call Now
Website
Call
Business Details
50+ Years
experience
Emergency
services
Open 24/7
always available
Your Trusted HVAC Partner in Hazle Township
Founded in 1972, S. J. Kowalski has established itself as a trusted leader in HVAC and plumbing services for residential and light commercial clients. Our family-owned business combines decades of hands-on experience with factory-trained expertise in cutting-edge systems from industry leaders like Trane and Mitsubishi. We prioritize preventative maintenance and 24/7 emergency service to ensure uninterrupted comfort, backed by a 2-year labor warranty and partnerships with top manufacturers.

Our commitment to quality installation, energy efficiency, and personalized solutions has earned us an A+ BBB rating and recognition as the region's only Trane Comfort Specialist dealer. With over 50 years of community service, we maintain deep ties through memberships in the Great Hazleton Chamber of Commerce and Better Business Bureau, ensuring every project reflects our core values of reliability, transparency, and customer-centric care.
Services
HVAC Services Furnace Repair Boiler Services Heat Pump Installation Plumbing Services
Details
  • Year established: 1972
Highlights and features
  • 24/7 emergency service available for urgent HVAC needs
  • Family-owned business with 50+ years of local experience
  • Factory-trained technicians certified by Trane and Mitsubishi
  • 2-year labor warranty on all installations
  • Financing options through Wells Fargo Service Finance
Associations and certifications
  • Trane Comfort Specialist
  • Better Business Bureau
  • Mitsubishi Diamond Contractor
What people say
Prompt service Professional technicians Reliable repairs Great communication Efficient installations
Services
HVAC Services
We provide comprehensive heating, ventilation, and air conditioning solutions for residential and light commercial properties. Our certified technicians install, repair, and maintain systems from leading brands like Trane and Mitsubishi. With 24/7 emergency availability and preventative maintenance programs, we ensure year-round comfort through efficient system operation and energy-saving technology.
Furnace Repair
Our specialists handle all furnace makes and models, offering prompt repairs for gas and oil systems. We diagnose issues like ignition failures, thermostat malfunctions, and airflow problems while providing annual tune-ups to extend equipment lifespan. Emergency service guarantees rapid response during critical winter months to restore home comfort quickly.
Boiler Services
We install and service high-efficiency Navien boilers with expertise in radiant heating systems. Our technicians perform preventative maintenance, emergency repairs, and complete replacements while educating clients on energy savings from modern condensing boilers. Radiant heating solutions provide consistent warmth without air circulation allergens.
Heat Pump Installation
Our team specializes in air-source and geothermal heat pump installations with Trane systems. We assess property requirements to recommend optimal configurations for year-round temperature control. Proper sizing and installation maximize energy efficiency while reducing utility costs through advanced heat exchange technology.
Plumbing Services
We offer full plumbing solutions including tankless water heater installation, well system maintenance, and water conditioning services. Our licensed plumbers handle emergency repairs, system upgrades, and preventative care for residential and commercial properties, ensuring reliable water delivery and quality throughout Northeastern Pennsylvania.
Questions
What HVAC services do you offer?
We provide heating, cooling, plumbing, boiler, and geothermal services with 24/7 emergency repair availability.
Do you service all HVAC brands?
Yes, our technicians repair all major brands but specialize in Trane, Mitsubishi, and Navien systems.
Are financing options available?
Yes, we offer Wells Fargo Service Finance for qualifying HVAC installations and major repairs.
What areas do you serve?
We serve Hazle Township, Hazleton, Tamaqua, Mahanoy City, and surrounding communities in Northeastern Pennsylvania.
How often should HVAC systems be maintained?
We recommend bi-annual maintenance - once for heating systems before winter and cooling systems before summer.
Do you offer maintenance agreements?
Yes, our Comfort Club provides scheduled maintenance with priority service scheduling and system longevity benefits.