Mountain Top Plumbing, Cooling & Heating Services

Book Service in Mountain Top with S.J. Kowalski

Serving the Mountain Top Community Since 1972


Mountain Top, Pennsylvania lies between the Susquehanna and the Lehigh River in Luzerne County just north of our Hazleton home town. Since 1972, S.J. Kowalski has provided plumbing, heating, and air conditioning services to Mountain Top homeowners and businesses.

  • Heating System repair, maintenance, and installation
    Furnaces, Boilers, Ductless Mini-Splits, Heat Pumps & Geothermal Units
  • Cooling System repair, maintenance, and installation
    Air Conditioners, Ductless Mini-Splits & Geothermal Units
  • Water Heating System repair, maintenance, and installation
    Tankless & Tank Water Heaters

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

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

Plumbing & Water Heating
in Mountain Top, PA


We other a full range on plumbing services for homes and businesses in Mountain Top.

Did you know that domestic water heating is the second-largest energy user a typical Pennsylvania home right behind space heating? At S.J. Kowalski, we can help you extend the life and efficiency of your existing gas or electric water heater with both water heater repair and maintenance services. If you are looking for a new water heater we offer traditional tank heater heaters, and new high-efficiency tankless systems and heat pump water heaters.

We are well-pump specialists. We have the parts, pumps, expansion tanks, and controls on hand, and offer around the clock emergency service. To learn more about our pump service for your Mountain Top, PA home or business click here.

We also offer a broad range of plumbing services including leak repair, drain cleaning, sump-pump work, bathroom updates, and kitchen remodeling services. Learn more here.

Tankless Water Heaters

Click the Rinnai & Navien logos above to learn more about the tankless water heaters we carry

At S. J. Kowalski we are Trane Comfort Specialists, and a Mitsubishi Diamond Elite dealer.

Mountain Top the primary supplier for both electricity and natural gas is UGI. They support investments in energy efficiency for both residential and commercial installations. Rebates for up to $1250 are available for the installation of mini-split heat pumps. See details here.
For Mountain Top natural gas customers, UGI offers rebates of up to $1500 for installation of a high-efficiency natural gas boiler, $500 for a new EnergyStar furnace, or $400 for the installation of a new tankless water heater. For details on UGI rebates click here.

Heating & Air Conditioning Services
in Mountain Top, PA


At S. J. Kowalski we offer a broad range of central heating and air conditioning services for Mountain T residents and businesses. Both hot water boilers and ducted furnaces are common in eastern Luzerne County.

For reliable comfortable heating, nothing is as flexible as a boiler system for Mountain Top home and business owners. Very compact hydronic systems can provide heat and hot water for a small condo, or large commercial systems can heat the largest commercial applications. At S.J. Kowalski we service existing systems and install new high-efficiency boilers. For information about our Mountain Top boiler services click here.

At S.J. Kowalski we are Trane Comfort Specialists and feature Trane 97% plus gas furnaces. We are also fully licensed and insured to maintain and repair all brands of furnaces for if you need help with your existing furnace we can help. Learn more about our furnace services here.

S.J. Kowalski are also air conditioning experts for Mountain Top, PA. Our insured and EPA certified technicians can service any brand of central air conditioning. If you need a new AC system we feature Trane, a leading international brand. Click here for information about our AC repair service, or here to learn more about our advanced Trane cooling systems.

Heat Pumps have become increasingly popular in Mountain Top, lead by the extraordinary technology offered by mini-split heat pumps. We are Mitsubishi Diamond Contractors. Mitsubishi is Pennsylvania’s lead brand of mini-split and they offer unparalleled energy savings combined with terrific system flexibility and comfort. Click here for more mini-split information.

We also offer Mountain Top home and business owners add-on central heat-pumps, and Geothermal heat pumps. A great option when you have a ducted system is to add a heat pump. A central heat pump will provide high-efficiency air conditioning in the summer, and also efficient heating in the winter. Often a central heat pump can save energy versus a convention system, and it reduces the carbon footprint of your home.

Trane Furnace

Click the Trane and Williamson logos above to learn more about the gas and oil furnaces we carry

Navien Boiler

Click the Navien logo above to learn more about the boilers we carry

Trane Air Conditioner

Click the Trane logo above to learn more about the air conditioners we carry

Trane Heat Pumps

Click the Trane logo above to learn more about the air-source heat pumps we carry

ClimateMaster Geothermal Heat Pumps

Click the ClimateMaster logo above to learn more about the ground-source heat pumps we carry

Mitsubishi Mini-Splits

Click the Mitsubishi logo above to learn more about the ductless mini-splits we carry

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