Business Details
50+ Years
experience
Emergency
services
Open 24/7
always available
Expert HVAC & Plumbing Services in Hazle Township, PA
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, Mitsubishi, and Navien. We prioritize 24/7 emergency service, preventative maintenance, and energy-efficient solutions to ensure year-round comfort. Our team's commitment to excellence is reflected in our A+ Better Business Bureau rating and status as the region's only Trane Comfort Specialist. With over 50 years of local service, we emphasize personalized attention, transparent communication, and long-term customer relationships.Our technicians undergo continuous training to stay at the forefront of HVAC technology, including geothermal and ductless mini-split systems. We guarantee reliable installations, prompt repairs, and comprehensive maintenance plans tailored to individual needs. Our Comfort Club membership program demonstrates our proactive approach to customer satisfaction. Backed by manufacturer warranties and a 2-year labor warranty, we stand by our workmanship. Serving Hazle Township and surrounding areas, we remain dedicated to community values while delivering modern, sustainable solutions.
Services
Furnace Repair
Boiler Services
Heat Pump Installation
Plumbing Services
Ductless Mini-Split
Geothermal Systems
Water Heater Repair
Indoor Air Quality
Emergency HVAC Service
System Maintenance
Details
- Year established: 1972
Highlights and features
- 24/7 emergency service available for all HVAC systems
- Factory-trained technicians for Mitsubishi and Trane systems
- A+ Better Business Bureau rating since 2006
- 2-year labor warranty on installations
- Custom Comfort Club maintenance programs
Associations and certifications
- Trane Comfort Specialist
- Mitsubishi Diamond Elite Dealer
- Better Business Bureau (BBB) A+ Rating
What people say
Prompt service
Expert technicians
Reliable repairs
Great customer service
Efficient installation
Services
Furnace Repair
Our certified technicians provide prompt furnace repair for all makes and models, including Trane and Williamson systems. We diagnose and fix issues like ignition failures, thermostat malfunctions, and airflow problems. Regular maintenance prevents breakdowns during critical winter months while improving energy efficiency. Our 24/7 emergency service ensures rapid response for urgent heating needs in residential and commercial properties.
Boiler Installation
We specialize in Navien boiler installations and replacements for residential and commercial properties. Our experts assess heating requirements to recommend high-efficiency condensing boilers that reduce energy costs. The installation process includes ductwork evaluation, system sizing, and integration with existing radiant heating systems. We offer comprehensive warranties and post-installation maintenance programs to maximize system performance and longevity.
Heat Pump Services
Our Trane-certified technicians handle all aspects of heat pump systems, from installation to emergency repairs. We service both air-source and geothermal models, optimizing performance for year-round temperature control. Preventative maintenance includes refrigerant checks, coil cleaning, and thermostat calibration. Our 24/7 service team addresses urgent issues like compressor failures and heating mode malfunctions in residential and light commercial settings.
Plumbing Services
We provide comprehensive plumbing solutions including water heater repair, pipe leak detection, and system upgrades. Our services cover traditional tank and tankless water heating systems, with expertise in Rinnai and Triangle Tube products. We handle emergency plumbing repairs, routine maintenance, and new system installations for residential and commercial properties throughout the service area.
Ductless Mini-Split
As Mitsubishi Diamond Contractors, we install and service energy-efficient ductless mini-split systems for homes and businesses. These systems provide targeted temperature control without extensive ductwork. Our technicians handle multi-zone installations, system maintenance, and emergency repairs. We offer customized solutions for additions, garages, and commercial spaces requiring independent climate control with advanced filtration options.
Questions
Do you offer 24/7 emergency HVAC service?
Yes, we provide 24-hour emergency repair services for all heating and cooling systems in our service area.
What areas do you service?
We serve Hazle Township, Hazleton, Tamaqua, Mahanoy City, and surrounding communities in northeastern Pennsylvania.
What HVAC services do you offer?
We provide furnace repair/installation, boiler services, heat pump maintenance, ductless mini-split systems, and geothermal solutions.
Are financing options available?
Yes, we offer financing through Wells Fargo Service Finance for HVAC system replacements and upgrades.
What is the Comfort Club Membership?
Our Comfort Club provides twice-yearly system maintenance, priority service scheduling, and discounts on repairs for HVAC systems.