Heating & Cooling

Serving Southeastern and Central PA

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Go with Petro for live 24/7 emergency service.

Our local team of experts is always available to take care of any HVAC, heating or cooling emergency repairs – whatever the weather!

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HVAC services that are best-in-class.

From expert heating and cooling system installation to fast water heater repairs, we’re the local HVAC pros you can rely on for all your comfort needs.

Water Heaters

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Heating oil services you can always rely on.

Go with Petro for better savings, worry-free delivery, flexible pricing plans, monthly budget plan and a guaranteed oil supply, so you’ll never run out.

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Propane for all the ways you use it.

We’re the local propane pros you can count on for worry-free delivery of the propane to power your home, with no hidden delivery surcharge fees and more!

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Generators to keep your home powered up.

For whole-house standby generator installation, repair and maintenance services to ensure that life goes on anytime power goes off at home, go with Petro.

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See what our customers are saying!

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Patsy W.

Mar 08, 2026

Good service.

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Lisa C.

Nov 13, 2025

Leffler is a great company. They're my oil supplier as I have oil heat and hot water heating. They're affordable and provide excellent service.

D

Dave L.

Sep 16, 2025

Leffler replaced our central air with a new and upgraded outdoor compressor unit. The old unit was too loud. The new one is so much quieter; what a difference! Matt in sales was very knowledgeable. The techs Barry and Steve d...