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Oil to Gas Heating Conversion Cost in Pennsylvania

Oil to gas heating conversion in Pennsylvania typically costs $6,000 to $15,000. See what drives the price, from gas lines to tank removal and chimney liners.

Oil to Gas Heating Conversion Cost in Pennsylvania

A lot of Pennsylvania homes still burn heating oil, especially older houses with cast iron radiators in the Philadelphia suburbs, around Scranton, and in the river towns outside Pittsburgh. When the oil boiler starts showing its age and the delivery bills keep climbing, switching to natural gas is usually the first upgrade owners price out.

A full oil to gas conversion in Pennsylvania typically runs about $6,000 to $15,000 for a straightforward job. It can reach $15,000 to $25,000 or more when you need a new boiler, a buried tank removed, and a long gas line. The spread is wide because the project is several separate jobs bundled into one.

What Goes Into the Total Price

Most conversions break down into five pieces: getting gas to the house, the new heating equipment, venting, dealing with the old oil tank, and permits. Each one can swing the final number by thousands of dollars depending on your house and your street.

Contractors usually quote the heating equipment, piping, and venting together. The gas service line comes from the utility, and tank removal is often handled by a separate company, so you may end up with three bills instead of one.

Here's a rough breakdown of typical ranges for a single-family home:

• Gas service line from the utility: $0 to $5,000 or more, depending on distance and utility policy
• New gas furnace, installed: about $4,000 to $9,000
• New gas boiler, installed: about $7,000 to $15,000
• Chimney liner or new direct venting: about $500 to $4,000
• Oil tank removal or abandonment: about $1,000 to $5,000, more if the soil is contaminated
• Interior gas piping and permits: about $600 to $2,500

These are approximate ranges based on typical Pennsylvania jobs. Your quotes will depend on the age of the house, how easy the basement is to work in, and how busy local contractors are when you call.

Getting Gas to the House

The first call should go to your gas utility, not a contractor. In southeastern Pennsylvania that is usually PECO in the suburbs and PGW inside Philadelphia. UGI covers much of the Lehigh Valley, Lancaster, Harrisburg, and the Scranton and Wilkes-Barre area, while Peoples and Columbia Gas serve large parts of western Pennsylvania, including the Pittsburgh region.

One common mix-up involves PPL. It is an electric utility only, so it won't run a gas line to your house even though it sends your power bill.

If a gas main already runs down your street, many utilities will install the service line for free or at a modest cost when you commit to gas heat, as long as the run stays under a set footage allowance. Past that allowance, you pay per foot. If there's no main on your street at all, extending one can cost tens of thousands of dollars, and that alone ends plenty of conversion plans.

Utilities also have lead times. In a busy fall, getting a service line installed and a meter set can take several weeks, so starting the process in spring or summer saves a lot of stress.

Furnace or Boiler

Homes with ductwork are the simpler conversion. A gas furnace swap in a house that already has forced air usually lands around $4,000 to $6,500 for a standard model and $5,500 to $9,000 for a high-efficiency condensing unit.

Radiator homes are a different story. The older twins and colonials along the Main Line, in Allentown, and in Lancaster city often have hot water or steam radiators, and those need a boiler. A new gas boiler typically runs $7,000 to $15,000 installed, and steam systems tend to cost more because fewer contractors work on them.

Some owners ask about keeping the oil boiler and swapping in a gas conversion burner. That can cost $1,500 to $3,500 and makes sense only if the boiler is fairly young and in good shape. On a 30-year-old cast iron boiler, you're putting a new engine in a car whose frame is rusting out.

Chimney Liners and Venting

Gas exhaust is cooler and wetter than oil exhaust, and it can eat through an old unlined masonry chimney. Code generally calls for a properly sized liner when a gas appliance vents into a masonry flue. A stainless steel liner usually costs $1,500 to $4,000 depending on chimney height and how many appliances share it.

High-efficiency condensing furnaces and boilers skip the chimney entirely. They vent through a side wall with PVC pipe, which often adds only $500 to $1,500 to the install. Avoiding the liner is one reason condensing equipment often pencils out better than its sticker price suggests.

The Old Oil Tank

Basement tanks are the easy version. Pumping out leftover oil, cutting up the tank, and hauling it away usually runs about $1,000 to $2,500, and some companies credit you for usable oil left inside.

Buried tanks are where budgets get into trouble. Removing an underground tank often costs $2,000 to $5,000 if the soil is clean, and abandoning it in place with sand or foam fill runs around $1,000 to $3,000 where local rules allow it. If testing finds a leak, cleanup can climb well past $10,000, so ask about soil testing before you sign anything.

Buyers and home inspectors in Pennsylvania routinely ask about buried tanks during a sale. Having removal paperwork on file makes a future listing easier, which is worth weighing even if abandonment is cheaper today.

Permits and Inspections

Permit fees are usually the smallest line item, often somewhere between $100 and $500 depending on the township. Pennsylvania's Uniform Construction Code is enforced locally, so the process in a Montgomery County township can look different from the one in a small borough outside Scranton.

Your contractor should pull the mechanical permit and schedule the inspection. If a quote says no permit is needed for a heating system swap, treat that as a warning sign.

Water Heaters and Other Hidden Add-Ons

Many oil-heated homes make hot water with a coil inside the boiler or with a separate oil-fired tank. Once the oil burner goes, that hot water source goes with it, and a new gas water heater or indirect tank adds roughly $1,500 to $3,500.

Other surprises show up once the old system comes out. Asbestos insulation on boiler piping is common in older Pennsylvania homes and needs professional abatement, which can add $1,000 to $3,000 or more. Electrical updates and a condensate drain or pump can also appear on the final invoice.

A good contractor walks the basement before quoting and lists these items plainly. When one quote looks far cheaper than the others, check whether it leaves out the water heater, the liner, or the tank.

Does the Conversion Pay for Itself?

Payback comes down to how much oil you burn now and the price gap between oil and gas in your area. A typical older Pennsylvania home can go through several hundred gallons of oil a winter, and at recent oil prices that adds up to a heating bill in the thousands.

Natural gas has generally cost less per unit of heat than heating oil in Pennsylvania, though the gap moves with fuel markets. A household that trades an old oil boiler for a new condensing gas boiler gets two savings at once: cheaper fuel and less wasted heat. That combination is why many owners see yearly savings anywhere from several hundred dollars to over $1,000.

Running your own numbers is simple. Add up last year's oil deliveries, ask your gas utility for an estimate of annual gas use for a home your size, and compare the two. Divide the conversion cost by the yearly savings, and you get a rough payback period that often lands somewhere between five and 15 years.

The math improves when the oil system is near the end of its life anyway. If you would spend $8,000 to $10,000 replacing the oil boiler regardless, only the extra cost of converting needs to pay itself back.

Oil also carries costs beyond the fuel itself: annual burner service, tank upkeep, and the risk of running dry on a cold January night. Gas removes those, and many owners count that as part of the return.

Where Conversions Cost More in Pennsylvania

Location changes the math in a few predictable ways. Older rowhomes and twins in Philadelphia and its inner suburbs often have tight basements and shared chimneys, which adds labor. Hillside homes around Pittsburgh can mean longer service lines and harder trenching.

In the Scranton and Wilkes-Barre area, plenty of homes still run steam heat installed generations ago, and matching a new boiler to that piping takes a contractor who knows steam. Around Allentown and Lancaster, gas mains are common in town, but rural properties a few miles out may have no main at all.

Should You Consider a Heat Pump Instead?

Cold-climate heat pumps have become a serious option in Pennsylvania, including the colder northern tier. A ducted heat pump system typically costs about $12,000 to $25,000 installed, while ductless mini-splits run roughly $3,500 to $7,000 per zone.

Heat pumps make the most sense in homes with existing ductwork, decent insulation, and no gas main nearby. They also provide central air, which many oil-heated homes lack. Radiator homes are harder, since replacing radiators means new ducts or several ductless heads.

A hybrid setup is another path. Some owners pair a gas furnace for the coldest weeks with a heat pump that handles spring, fall, and mild winter days. Utility rebates and federal incentives for heat pumps have changed in recent years, so confirm current programs with your utility and installer before counting on any credit.

How to Get Accurate Quotes

Start with the utility, then call contractors. Knowing whether gas service is available and what the service line will cost keeps you from paying for a heating plan you can't use.

Get at least three quotes, and ask each contractor to list the equipment model, efficiency rating, venting method, piping, permits, and tank handling separately. Line-item quotes make it easy to spot what one company left out. You can compare local installers through our directory of Pennsylvania heating and cooling contractors.

Ask for a heat loss calculation instead of a size copied from the old boiler. Many oil boilers in older homes are oversized, and a right-sized gas unit costs less and runs more efficiently. For more guides on home costs across the state, browse the rest of our home services blog.

Frequently Asked Questions

How long does an oil to gas conversion take?

The equipment swap usually takes one to three days once work starts. The longer wait is often the utility, since a new service line and meter can take several weeks during the fall rush.

Will PECO or UGI run the gas line for free?

Sometimes. Many Pennsylvania gas utilities cover a set length of service line at little or no cost when you convert your primary heat to gas, and you pay for footage beyond that allowance. Call your utility with your address to get the current policy.

Do I have to remove my oil tank?

Not always. Many townships allow a buried tank to be abandoned in place with proper filling and documentation, which often costs $1,000 to $3,000. Removal gives you cleaner paperwork for a future sale, and some buyers prefer it.

Can I keep my radiators when I switch to gas?

Yes. A gas boiler connects to the same hot water or steam radiators, so most radiator homes keep their existing piping. The boiler is the main expense, usually $7,000 to $15,000 installed.

Is natural gas always cheaper than oil in Pennsylvania?

Gas has generally been the cheaper fuel per unit of heat, though prices for both change every year. Compare your last full winter of oil deliveries against a gas estimate from your utility to see the likely savings for your home.