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Holliston covers about 19 square miles, and gas doesn’t run down every road in it. That’s the first thing to know before you spend a dollar on oil to gas conversion in Holliston. Availability goes street by street—the Route 16 corridor and the village center are more likely candidates than outlying roads—and plenty of people will tell you “most areas have gas” without checking your specific address.
We check with Eversource first, so you get a real answer about your road. If gas is an option, the math gets simpler. The median home in Holliston was built around 1966, so the oil system in yours has probably been replaced at least once already. When the boiler or tank is 15 to 20 years old, oil heating replacement in Holliston with gas swaps out equipment you’d be buying anyway. Plan on an estimated $5,000 to $15,000, depending on how far the main sits from your house and what the job involves inside.
After that, you stop watching a tank gauge and scheduling deliveries around your commute. January lows in Holliston sit in the low 20s, and a gas system keeps running through that without a call to the oil company. If you live in an older home near the town center with radiators, gas heating installation in Holliston can often mean a new boiler feeding the same radiators, so the house stays as it is.
Dempsey Energy started as a family oil delivery company and grew into heating, air conditioning, and plumbing for homeowners across MetroWest. That history matters when you’re leaving oil behind in Holliston. We know what a tired burner sounds like and what a 20-year-old tank looks like, and we know what you’re used to getting from a local oil dealer.
If you’ve relied on a neighbor-run oil company in Holliston for years, switching fuels doesn’t have to mean losing the personal touch. We’ve served about 12,000 customers, and we track service calls and follow up to make sure repairs hold up. For an oil furnace conversion to gas in Holliston, you work with one team from the first walk-through to the final inspection.
Licensed gas fitters file the paperwork with the Holliston Building Department at Town Hall on Washington Street. That’s true whether your home is a 1960s raised ranch in Brentwood or an antique colonial in East Holliston. We handle the permits, the install, the tank removal, and the coordination with town inspectors so you don’t have to.
It starts with a walk-through. We look at your current oil boiler or furnace, how old it is, where the tank sits, and how long you plan to stay. Then we contact Eversource, the gas utility in Holliston, to find out whether a main runs past your property. That answer decides everything else, so it comes first.
If gas is on your road, Eversource handles the service line and the meter. If it isn’t, the conversation shifts to a main extension and whether your neighbors want in, which takes longer. We’ll tell you which situation you’re in before you commit to anything.
Inside the house, we pull the gas fitting and plumbing permits through the Holliston Building Department’s online portal. Then comes the oil to gas heating conversion itself: old equipment out, new furnace or boiler in, gas piping, venting, a chimney liner if your house needs one, and safety testing. Once gas service is available, the install usually takes one to two days.
We also remove the oil tank and coordinate asbestos removal, which is more likely to come up in homes built before 1940. The town inspects the work, and Eversource sets the meter after approval. Because heating system conversion in Holliston depends on utility and permit steps, spring or summer is the easiest time to start, well ahead of the first cold snap.
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Your oil to gas conversion in Holliston covers the whole job inside your house. That means the assessment, a new high-efficiency gas furnace or boiler (up to 95%+ AFUE), piping, venting, permits, safety testing, and a walkthrough when we finish. Oil tank removal and asbestos coordination are part of the project, so you aren’t hiring three different companies.
Furnace or boiler is the first real decision. Many homes near the Holliston town center and in the East Holliston Historic District have radiators or no ductwork at all, so a gas boiler is often the better fit. A 1960s raised ranch with ducts may be a better candidate for a gas furnace. For oil boiler conversion to gas in Holliston, we’ll tell you which one makes sense after we see your setup.
Manufacturer warranties on new equipment typically run 10 to 20 years, and we offer a labor warranty on select installs. After the work is done, the Dempsey Comfort Club is our membership program, with priority scheduling for routine and emergency calls, member discounts on service, and extended warranty options. Financing is available too, which matters now that Mass Save no longer rebates gas equipment.
It depends on your road, and the only way to know for sure is to ask Eversource, the gas utility serving Holliston. The town is spread across about 19 square miles with a lot of larger lots, so availability changes from street to street. The Route 16 corridor and the village center are more likely candidates than outlying roads in Holliston, but nobody can promise that for your address without checking.
We check availability for you at the start. If there’s a main out front, Eversource connects your house with a service line and meter. If there isn’t, your options are a main extension (which usually works best when neighbors sign up together), staying with oil, or looking at a heat pump. On a larger lot in Holliston, the distance from the street to your house can also add to the cost, so we price that out before you decide.
Plan on $5,000 to $15,000 for oil to gas conversion in Holliston, MA. That range covers the new furnace or boiler, gas piping, venting, permits, and tank removal. Where you land depends on how far your house sits from the main, how much piping runs inside, whether you need a chimney liner, and whether your tank is above ground or buried.
Savings are the other half. Many homeowners estimate $800 to $1,000 a year in fuel savings, though yours depends on how much heat you use and what gas and oil cost in your area. On a $5,000 job saving $1,000 a year, payback is about five years. On a $15,000 job, it takes longer. That’s why we give you a written quote, so you can run the numbers for your own house instead of trusting a headline figure.
Mass Save ended rebates for gas, oil, and propane heating equipment on October 1, 2024, with an exception for low-income households. Some websites still advertise old conversion rebates, so don’t count on one. Heat pump incentives are still available.
So the question is whether the numbers work on their own. They work best when your oil boiler or furnace is 15 to 20 years old and due for replacement anyway, gas is available without a costly extension, and you plan to stay about 10 years or more. Many Holliston owners fit that last part, with owner-occupancy near 87%. If your oil system is fairly new and efficient, keeping it may make more sense, and we’ll tell you that. A conversion that doesn’t pay off for you isn’t one we want to sell.
Yes, you’ll need permits. The Holliston Building Department issues gas fitting and plumbing permits through its online portal, and contractors register with a license, workers’ comp, and liability insurance on file. We handle that paperwork, and a licensed gas fitter signs the application. The department is at Town Hall on Washington Street (Route 16). The town inspects the work, and Eversource sets your meter afterward.
The install itself usually takes one to two days once gas service is available. The longer part is everything around it, like Eversource’s service line and the permit and inspection steps. Starting in spring or summer gives you a cushion before heating season. Starting in January with a failed boiler is a much tougher way to do it.
The tank gets removed properly as part of the project, so you aren’t left with a rusting tank in the corner of the basement. We handle the removal along with the old furnace or boiler. Once it’s gone, you get that space back for storage, a workbench, or just room to walk around.
Where the tank sits matters. A tank in the basement or above ground is straightforward. A buried tank is more involved and can need an environmental assessment if there’s any sign of a leak, which adds to the cost. Holliston has a lot of homes built in the 1960s and earlier, so it’s worth knowing what’s actually in your yard and basement before anyone gives you a price. If older pipe wrap turns up, we coordinate asbestos removal before the work begins.
It depends on the house, and we install both, so we’re not steering you toward one. Gas tends to fit when you already have radiators or ducts, gas is available at your street, and you want a lower upfront cost. Many older homes near the Holliston town center and in the East Holliston Historic District have radiators or no ductwork. A gas boiler can reuse that existing system, while a heat pump in those houses often means ductless units.
Heat pumps still qualify for Mass Save incentives and gas no longer does, so compare total cost with rebates counted. Gas and electric rates both move, so we run the comparison for your actual house. If you’re researching oil to gas conversion in Holliston, ask for a written side-by-side of both options. Then you can decide with real numbers.
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