Oil-to-gas and oil-to-propane changeovers handled start to finish by one licensed crew — fuel line, equipment and venting.

Serving Bowmanville, Oshawa, Whitby, Courtice, Newcastle, Orono, Port Perry, Uxbridge and rural Clarington.

Oil Furnace

If you’re still heating with oil, you’ve probably had at least one of these conversations recently — a letter from your insurer about the tank, a fuel bill that keeps climbing, or a furnace that’s getting harder to justify repairing.

Most companies split that job in two. An HVAC contractor handles the equipment, a separate fuel contractor handles the line, and you coordinate between them. Forward Mechanical is a TSSA-registered fuels contractor that also installs and services the equipment, so the oil removal, the new gas or propane line, the furnace and the venting are all one crew, one visit sequence, one company accountable for the whole thing.

Why homeowners are making the switch

  • Insurance questions about the tank If you’ve had a letter from your insurer asking about the age or condition of your oil tank, you’re on someone else’s timeline now. Replacing the tank answers the question for a while. Converting off oil answers it permanently, and puts the money toward equipment instead of toward storage for a fuel you’re eventually going to leave anyway.
  • Fuel supply and deliveries Oil means monitoring a tank, scheduling deliveries and running out on the wrong weekend if the timing slips. Natural gas comes off the main and never needs a delivery. Propane still needs a tank, but the tank sits outside and the supply arrangement is simpler than what you’re managing now.
  • The furnace is already at the end If the oil furnace is past 20 years and needs a major component, you’re deciding between spending real money on old equipment or putting that money toward the changeover. We’ll quote both and tell you which one we’d pick in your house.
  • Tank and line take up space you’d rather have back Converting means the tank comes out. For a lot of homeowners that’s a basement corner or a side yard returned to them.

What an oil-to-gas conversion involves

Every house is different, but the sequence is usually the same:

  1. Site assessment and quote We look at the existing system, where the gas service enters (or whether it reaches your street at all), the venting path, the ductwork, and the tank situation. You get a written quote covering the whole job — not equipment now and fuel work later.
  2. Gas or propane line New line run from the meter or tank to the appliance location, done in-house by our licensed technicians and inspected to code.
  3. Furnace installation The old oil furnace comes out, the new high-efficiency gas or propane furnace goes in, sized to your home rather than sized to whatever was there before.
  4. Venting High-efficiency equipment vents differently than an oil furnace. The old chimney or flue arrangement usually can’t be reused as-is, and we handle the new venting as part of the job.
  5. Tank removal and decommissioning We handle it. The old tank, the supply lines and the decommissioning are part of the job, not something you’re left to arrange with a third party after we’ve gone. That’s usually the first question homeowners ask us, and the answer is that you make one call and one company deals with all of it.
  6. Startup, commissioning and walkthrough System started, tested, and you get shown how it runs before we leave.

What does an oil-to-gas conversion cost in Durham?

No two of these jobs price the same, so we don’t publish a number we’d have to walk back once we see your basement. What we will do is tell you exactly what moves the price before we quote, so nothing in the number surprises you:

  • How far the gas line has to run — from the meter to the furnace location, and whether the service already reaches your street
  • Whether the venting path is workable — a straightforward sidewall vent costs less than reworking a difficult run
  • Ductwork condition — existing ducts are usually fine, but if they were undersized for the original system it shows up here
  • Equipment choice — efficiency level, staging, and whether you’re pairing with a heat pump
  • Tank removal — included in our quotes, but the tank’s location and condition affect the work involved
  • Rebates — availability changes; we’ll tell you what’s live when we quote rather than promising something that expired.

Every quote is written, itemized, and covers the whole changeover — fuel line, equipment, venting and tank removal — not equipment now with the fuel work priced later.

Still on oil? We service that too.

Converting isn’t the right call for everyone this year, and we’re not going to pretend otherwise to sell you a furnace. If your oil system is sound, we’ll keep it running safely:

  • Oil furnace repair diagnostics and repairs on existing oil equipment.
  • Annual service and tune-ups, keeping the system safe and efficient through a Durham winter.
  • Replacement assessments, astraight answer on whether the system is worth another season and what conversion would cost if it isn’t. No pressure either way.

 

No gas service on your street? Oil-to-propane.

Plenty of Durham properties will never see a gas main; the country edges of Clarington, the concessions around Orono and Newcastle, and much of Port Perry and Uxbridge. Propane is the workhorse out there, and it takes the same licensed fuels work as natural gas.

We handle the full oil-to-propane changeover: tank connection, line, furnace and venting. If gas service does eventually reach you, converting propane to natural gas later is a much smaller job than what you’re doing now.

Why Forward Mechanical for an oil conversion

Licensed fuels contractor, in-house.

The gas or propane side of your HVAC job is never subcontracted — it’s the trade we built the company on.

One company, one quote, one warranty.

No coordinating between an HVAC installer and a separate gas fitter, and no finger-pointing if something needs revisiting.

Done Right.
The first time.

Award-winning and accredited Readers Choice Diamond winner for Best Plumbing in Whitby, BBB accredited, TSSA registered.

Local and 24/7

Serving all of Durham Region. When the furnace quits on the coldest night of the year, you’re calling a neighbour, not a call centre.

Straight Quotes

If a repair makes more sense than a replacement, that’s what we’ll tell you.

What Our Customers Say

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Vanessa
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I had a great experience with these guys! I messaged them in a panic because we had a leak under our kitchen sink, and knowing that our plumbing from the previous owners wasn't great, that we would probably need to re do the whole thing. They replied quickly, and I was able to text them a photo of what I needed fixed, and they provided me a quote, details of what was going to need to be fixed, and WHY (this is super helpful), and worst case scenario, as well as an appointment asap. Ben and Owen were the two gentlemen who came to do the repairs, and they were quick, polite, and made sure everything was set, tested, and that we were aware of what was done before they left. And the pricing was absolutely more than reasonable. Will definitely be calling these guys again for any plumbing needs
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Janice G
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I have used their services several times. They are always professional, prompt efficient honest and the price is fair....they get the job done right I also continue to ask them for referrals for other types of work I need done . I trust them so trust their circles . I Highly Recommend you call Forward Mechanical plumbing and Gas for your needs
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Adrian Croft
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Ben and Owen were polite and helpful.
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Erik Kingissepp
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Hakim and Ben were great! Hooked up my gas stove, new dishwasher, faucet and water filter system. Very friendly and professional.
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Eric V
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showed up well within the service appointment time, quickly got the job done and correctly, under expected cost. Will use again
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sabrina perri
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They were fast and very efficient! Thanks alot :)
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Cara Young
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Great guys. Very quick and friendly. Highly recommend. Owen, Nick and Dylan all did a great job!
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Monkey Mike
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Amazing and quick!
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Marilyne Tallec
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Excellent work, from start to finish, took time to explain exactly what they and how it all works. Very efficient. I truly recommend them.
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Alim Yhap
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Hakeem and Ben corrected a gas connection problem identified by Enbridge during their metre change process. A brand new quick connect valve and a proper shut off was installed, and it was really well done!
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Oil Heating — Frequently Asked Questions

Yes, and we do the whole job in-house — the new gas line, the furnace, and the venting — rather than splitting it between an HVAC company and a separate gas fitter.

Then propane is the answer, and it’s the same licensed fuels work. We do oil-to-propane conversions regularly in rural Clarington, Orono, Newcastle, Port Perry and Uxbridge.

Yes. Tank removal, the supply lines and decommissioning are part of the conversion — you don’t need to arrange it separately or coordinate a second company.

Most changeovers are done inside a couple of working days, but it depends on the line run, the venting and the tank. We’ll give you the schedule with the quote so you know exactly what to plan around.

Broadly: replace the tank, or convert off oil entirely. Replacing buys you time; converting removes the issue permanently. We’ll walk you through both and quote the conversion so you can compare properly.

It depends on age, repair cost, and what fuel is available to you. Past 20 years with a major component failure, conversion usually wins on total cost — but we’ll quote both and tell you which we’d choose in your house.

Yes — 24/7, same as our plumbing and gas service. No heat in January is an emergency and we treat it like one. Call (905) 439-4360.

Service Across Durham Region

Plumbing, gas, heating and cooling service across Durham Region and Northumberland County. We cover Pickering, Ajax, Whitby, Oshawa, Courtice, Bowmanville, Newcastle, Port Perry, Uxbridge, Port Hope and Cobourg.

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