Your insurance company gives you 30 days to replace your oil tank, and you’ve never watched anyone do it. Sound familiar? Every fall, homeowners across Greater Moncton call us holding a renewal letter and wondering exactly what they’ve signed up for.
Here’s the good news. The oil tank replacement process is faster and less disruptive than most people expect. A standard swap takes about half a day, your heat is off for only a few hours, and a good crew leaves your basement or yard tidier than they found it.
This guide walks you through the whole job, from the first phone call to the moment your furnace fires back up on the new tank. By the end you’ll know what happens at each step, roughly what it costs, and how to spot a contractor who’s cutting corners.
If you’d rather skip the reading and just talk it through, call us at (506) 802-3471. We give free written estimates across Moncton, Dieppe, Riverview, and the rest of Southeast New Brunswick.
How the Oil Tank Replacement Process Starts: The Estimate
Everything begins with a proper look at what you’ve got. A tech visits your home, checks the tank, and works through a short list:
- Where the tank sits: basement, garage, or outside on a stand
- How the oil line runs to the furnace or boiler
- The condition of the fill pipe, vent pipe, and gauge
- How much oil is left in the tank right now
- Access issues like narrow stairs, tight doorways, or a soft, sloped yard
That last point matters more than people think. A standard 910 litre steel tank is about five feet long, and getting one out of a 1970s basement with a tight stairwell takes real planning. Sometimes the old tank has to be drained, cut open, and carried out in pieces.
You’ll also talk tank options during this visit. Most homes in our area run a standard 910 litre steel tank, but double-bottom steel tanks and double-wall models are worth a serious look, especially for outdoor installs near the coast. They cost more up front and buy you a lot of peace of mind.
Then you get a written estimate. Insist on written. It should list the tank model, the stand or pad, the oil line, filter, fittings, vent whistle, labour, oil transfer, disposal of the old tank, and taxes. If a company throws out one round number over the phone without seeing the job, be careful. Our oil tank replacement service in Moncton always starts with eyes on the actual tank.
Here’s how that played out for Diane in Riverview last October. Her insurer gave her 30 days to replace her 1996 single-wall tank or lose coverage. We did the site visit on a Tuesday, had a written quote in her inbox that evening, and swapped the tank the following week for $3,150 all in. Her broker had the compliance paperwork before our truck left the driveway. If tank age is what triggered your letter, our post on oil tank age and insurance explains what New Brunswick insurers actually look for.
Replacement Day, Step by Step
Here’s what happens once the truck pulls into your driveway. Most of these steps overlap, and a two-person crew moves through them faster than you’d guess.
Step 1: Shut down and protect the space
The furnace or boiler gets switched off at the emergency switch, and the crew lays down drop sheets along the path from the tank to the door. For basement tanks, anything fragile nearby gets moved or covered before a wrench comes out.
Step 2: Pump out the old oil
A transfer pump moves your remaining oil into clean holding drums. Good crews pull from a few inches above the tank bottom so the sludge and water that collect down there stay out of your fresh supply. That bottom layer goes off for proper disposal, not into your new tank.
Step 3: Disconnect the lines
Next the oil supply line to the furnace comes off, along with the fill pipe and vent pipe. Each open connection gets capped or plugged right away so nothing drips while the tank is being moved.
Step 4: Remove the old tank
An outdoor tank usually lifts straight off its stand and onto the truck. A basement tank is the wild card. If it fits up the stairs and through the door, out it goes in one piece. If it doesn’t, the crew cuts it apart with the vapours properly managed, which is one of several reasons this is not a DIY job.
Step 5: Prep the base
The new tank needs a solid, level base. Outside, that means a proper stand on a concrete pad or patio stones set on compacted ground, never bare soil that heaves every frost. Inside, the floor gets checked for level and the legs get set so the tank can’t rock. A leaning tank stresses every fitting attached to it.
Step 6: Set and level the new tank
The new tank is placed and levelled with a slight pitch toward the outlet, exactly as the manufacturer specifies. That pitch lets water and sediment settle away from the fuel pickup instead of feeding into your burner.
Step 7: New line, filter, and fittings
A quality install includes a new oil line in a protective sleeve, a new filter, new fittings, and a vent whistle so your delivery driver can hear when the tank is nearly full. Reusing a 25 year old copper line on a brand new tank is false economy, and it’s where corner-cutting outfits save their money. Everything is installed to the CSA B139 code that governs oil burning equipment in Canada.
Step 8: Refill and leak test
Your clean oil goes back into the new tank through a filter. Then every joint and fitting gets checked for weeps and drips. No crew should leave before the whole system has been inspected under real operating conditions.
Step 9: Fire the furnace and bleed the line
Air in the oil line will stop a burner cold, so the tech bleeds the line at the pump until fuel runs clear, then fires the furnace and runs it through a full heating cycle. You should have warm air or hot water moving before anyone packs up.
Step 10: Paperwork and haul-away
The tank gets tagged with the install date, you get documentation for your insurance company, and the old tank leaves on the truck for recycling. Steel tanks are almost entirely recyclable, so very little of the old unit ends up in a landfill.
What the Oil Tank Replacement Process Costs in Greater Moncton
Most residential replacements in our area land between $2,400 and $4,500 CAD. Where you fall in that range depends on the tank you choose, where it sits, and how hard the old one is to get out.
| Job type | Typical all-in price (CAD) | Time on site |
|---|---|---|
| Outdoor tank, straightforward swap | $2,400 to $3,200 | 3 to 5 hours |
| Basement tank, standard access | $2,600 to $3,500 | 4 to 6 hours |
| Basement tank that must be cut out | $3,000 to $3,900 | 5 to 7 hours |
| Double-wall upgrade with new stand and line | $3,200 to $4,500 | 4 to 6 hours |
| Emergency swap on a leaking tank | Add $300 to $600 | Same day where possible |
Two real examples from this past year. Marc in Shediac had an outdoor tank where salt air off the strait had rusted the bottom seam. He went with a double-bottom tank on a new stand with a fresh line, $3,850 all in, and the crew was gone in five hours. Salt exposure ages coastal tanks faster than inland ones, so Shediac and Pointe-du-Chene owners should budget for earlier replacement.
Then there were the Melansons in Memramcook, who found a wet spot under their basement tank on a Friday night in January. Our emergency oil tank service pumped the remaining oil that night and installed the new tank Saturday morning, $3,700 including the after-hours call. If you ever spot a wet spot under your oil tank, treat it as urgent. A slow weep becomes a floor-staining leak fast, and cleanup costs dwarf replacement costs.
For a full breakdown of what drives the price up or down, see our oil tank replacement cost guide. Want a number for your exact setup? Request a free written estimate and we’ll come take a look, no obligation.
How Long Does the Whole Job Take?
For most homes, replacement day is half a day. Your heat is typically off for three to five hours, and we schedule morning starts so everything is warm again well before supper.
A few things stretch the timeline:
- A basement tank that has to be cut apart for removal
- A nearly full tank, since 800 litres takes a while to pump twice
- Winter conditions, where snow and ice slow down outdoor work
- Rot or rust on fill and vent pipes that need replacing along the way
In winter we plan jobs so no home sits without heat overnight, full stop. And if your tank is already 15 years or older, don’t wait for a failure to force an emergency timeline on you. Our guide on how long oil tanks last will help you judge how much runway you’ve got.
One more wrinkle worth knowing: if your property has an old buried tank from decades past, that’s a different job entirely, with its own excavation and testing steps. Underground leaks can quietly contaminate soil and groundwater for years, which is why the U.S. EPA runs an entire program on underground storage tanks.
Getting Ready for Replacement Day (and What Not to DIY)
You don’t need to do much, but a little prep saves the crew time and you money.
- Clear a path from the tank to the nearest door, about a metre wide
- Keep pets closed off in another room
- Note roughly how much oil is in the tank when you book
- In winter, shovel the driveway and the route to the tank
- Move vehicles so the truck can back in close
Now the other side of it. Do not drain the tank yourself, and don’t loosen a single fitting. Home heating oil is a regulated contaminant, and even a few litres soaked into a basement floor or lawn can trigger a cleanup running into tens of thousands of dollars. In New Brunswick, oil spills must be reported to the Department of Environment and Local Government, and homeowners who caused a spill while freelancing on their own tank have a hard conversation ahead with their insurer.
Same goes for moving a partly full tank, cutting up an old one, or reusing the old oil line to save a few dollars. The tools are cheap. The mistakes aren’t. This is one of those jobs where paying a licensed and insured crew is genuinely the frugal choice.
When you’re ready, call (506) 802-3471. Free written estimates, licensed and insured, and a 24/7 emergency line if your tank is leaking right now. We cover Moncton, Dieppe, Riverview, Shediac, Salisbury, Memramcook, and Sackville.
Frequently Asked Questions
How long does the oil tank replacement process take?
Most residential swaps take three to six hours from arrival to a running furnace. Basement tanks with tight access can push toward seven hours if the old tank has to be cut apart. Booking the estimate and getting on the schedule usually adds a few days to a week.
Will I be without heat during the swap?
Yes, but only for a few hours while the tanks are switched over. We schedule morning starts so your home is heating again the same day, and in winter we never leave a house without heat overnight. Plan for the furnace to be off from roughly mid-morning to mid-afternoon.
Can the oil from my old tank go into the new one?
Usually, yes. Clean oil gets pumped out, held in drums, and returned to the new tank through a filter. The sludgy bottom layer stays out and goes for proper disposal. If your old oil is badly contaminated with water or sediment, we’ll tell you before disposal so there are no surprise charges.
Do I need a permit or inspection for a new oil tank in New Brunswick?
Oil tank installations must meet the CSA B139 installation code, and your insurer will want proof the work was done by a licensed installer. A good contractor handles the compliance details and gives you dated documentation for the new tank. Keep that paperwork with your insurance file, because you’ll be asked for it at renewal time.