Short answer: The Same Guys Insulation, based at 83 Henry Smith Ave in Bowmanville, does attic insulation removal and re-insulation in Grafton and Colborne, Ontario. Grafton is about 65 km east on Highway 401, typically around 45 to 50 minutes; Colborne is about 75 km, typically around 55 minutes, just up the same highway between Cobourg and Brighton. We take out old, wet, mouldy or rodent-damaged insulation, air-seal, and insulate to R-50 or better, usually toward about R-60. Qualifying upgrades can get 50% of the after-tax insulation cost back, up to $1,250, through the Ontario Home Renovation Savings / Enbridge attic rebate. Call 647-453-7037.
Grafton is a village in the Township of Alnwick/Haldimand. Colborne is the urban centre of the Township of Cramahe. Both sit on the old Highway 2 corridor just north of the 401 in Northumberland County, with nineteenth-century village streets, farmhouses on the concessions, and later houses closer to the highway. We only recommend removal when the existing layer should not stay.
Attic work we do in Grafton and Colborne
- Full take-out of insulation that is old, wet, mouldy, or contaminated by mice, squirrels or raccoons, or that has settled too far to leave
- Checks for moisture and mould on the roof boards, fan ducts and soffit venting before anything new goes down
- Sealing of air leaks at top plates, stacks, wiring holes and fixtures once the attic floor is clear
- Eave baffles and a ventilation check so the new insulation does not block airflow
- Blown-in re-insulation to at least R-50, and typically toward about R-60
- Top-ups when the old insulation is dry and sound and only needs more depth
Basement insulation is also available.
Grafton and Colborne homes, and what their attics tend to look like
These two villages grew along the Lake Ontario settlement road that is now Highway 2, a short way inland from the 401. In Grafton, Barnum House on Highway 2, built about 1819–1820 for Eliakim Barnum, is a National Historic Site and one of Ontario’s important early Neo-Classical houses (Ontario Heritage Trust). In Colborne, Joseph Abbott Keeler laid out the village around a central square, now Victoria Square, and in 1820 built the Keeler House on Church Street East, a close contemporary of Barnum House (Heritage Cramahe). Around those landmarks are ordinary village houses, later bungalows, and farmhouses on the back concessions. In the attic, that usually means:
- Older houses in the Grafton and Colborne village cores, and along Highway 2. Attics this old are often low or odd-shaped, with insulation added in stages. Hatch photos are usually enough to start a quote; we only come out first if access or the age of the house makes a site check necessary.
- Farmhouses and mid-century homes in Alnwick/Haldimand and Cramahe. Depth and settling are the more common problems. Many of these attics start below the R-50 rebate minimum, and a bath fan or blocked soffits often leave the insulation stained or compressed.
- Later houses closer to the 401. These attics usually need a depth check more than a full take-out. If the starting level is already above R-35, the rebate no longer applies, and a home occupied for six months or less is not eligible.
Reading a Grafton or Colborne attic before we recommend removal
Once the hatch photos are in — or after a site check, if the house needs one — the job usually falls into one of these paths:
- Build up the existing layer if it is dry, even and free of contamination. That is the cheaper route to R-50 or more, and it remains rebate-eligible when the starting level is R-35 or less.
- Take the old material out if it is wet, crusted or stained, if a fan dumps into the attic, if there are nests, or if only a few inches remain. A new blow-in over that simply hides the problem.
- Deal with the air leaks first. Eave ice, frost on the nails or a stale smell at the hatch point to house air moving into the attic. An empty floor is what lets us seal those openings.
The broader method is on attic insulation removal and re-insulation in Durham Region.
Scheduling work in two Northumberland villages
Grafton is about 65 km east of the shop on the 401, typically 45 to 50 minutes. Colborne is about 75 km, typically around 55 minutes, one exit closer to Brighton. We price the job from details and photos, then travel when a site check is actually required or when the work is booked, often on the same east-401 day as Cobourg or Brighton:
- Price it from the address, the age and the hatch photos. Take-out, sealing, baffles, mould-related items and the new insulation are each itemized, with a stated target R-value.
- Visit first only if the house calls for it. A tight hatch, an older Highway 2 attic, or photos that do not show enough may need a look. We do not use the 401 just to write an estimate.
- Removal, when the old layer has to go. It is vacuumed out. On rebate jobs, the starting R-value is recorded on site before insulation is disturbed — a program requirement for the work, not for the quote.
- Dry, seal, then fill. Mould on the sheathing or framing is shown to you and treated first. Fans go outdoors, soffits are cleared, floor gaps are sealed, and baffles are placed at the eaves.
- The new insulation and a tidy exit. An even blow-in to at least R-50, typically toward about R-60, then clean-up, a review with you, and the contractor rebate forms.
Most Grafton and Colborne take-out-and-refill jobs are done in one day. Extra time for a large attic or a mould issue is noted on the quote.
Home Renovation Savings in Grafton and Colborne
Both villages can use the attic stream delivered by Enbridge Gas and Save on Energy, with no energy assessment. Half of the after-tax insulation cost comes back, up to a cap set by the starting level taken on site:
- R-12 or less: maximum $1,250
- R-13 to R-25: maximum $1,000
- R-26 to R-35: maximum $800
The attic must finish at R-50 or better. Cathedral ceilings and flat roofs use caps of $750 or $650. Insulation is what the program pays for, not removal. You must own the house. It must be heated by an Enbridge gas furnace or boiler, or by electricity, oil, propane or wood and tied to the Ontario electricity grid. That second route is the one that usually applies on rural concessions in Alnwick/Haldimand and Cramahe without gas.
The Same Guys Insulation is an approved contractor for this stream. We confirm whether the house fits, do the work to the standard, and submit our forms. The program has been extended to March 31, 2027, as announced by Enbridge Gas in October 2026; confirm current dates at homerenovationsavings.ca. Steps in full are on our Ontario attic insulation rebate page.
A Bowmanville crew on the east-401 run
- The same highway as Cobourg and Brighton, so both villages are often booked on an east-end day
- 95+ five-star Google reviews
- Insured, including WSIB
- Approved Home Renovation Savings attic contractor
- Take-out, sealing and re-insulation as one job
- Most attics finished in a day
FAQ — attic insulation in Grafton and Colborne, Ontario
Do you treat Grafton and Colborne as one service area?
Yes. They are about ten kilometres apart on the same 401 stretch, so quoting and scheduling work the same way. Each house is still priced on its own details.
How far are Grafton and Colborne from your Bowmanville shop?
Grafton is about 65 km, typically 45 to 50 minutes on the 401. Colborne is about 75 km, typically around 55 minutes. The quote comes from details and photos. Call 647-453-7037 and send the address plus hatch photos.
Can a rural house in Alnwick/Haldimand or Cramahe get the Enbridge attic rebate if it is not on gas?
Often, provided the other rules are met. Enbridge gas heat qualifies, and so does electricity, oil, propane or wood in a house on the Ontario electricity grid. The finished attic has to be at least R-50, and the rebate is 50% of after-tax insulation cost, up to $1,250, $1,000 or $800. The program has been extended to March 31, 2027, as announced by Enbridge Gas in October 2026; confirm current dates at homerenovationsavings.ca.
Does the rebate pay for removing old insulation in Grafton or Colborne?
No. It pays for insulation purchase and installation. Take-out and mould-related work are listed separately.
Are the older Highway 2 and village-core houses hard to get into?
They can be. Nineteenth-century houses around Grafton and around Victoria Square in Colborne often have a small hatch or a low roof. Include hatch photos. If access looks tight we may need a site check, and we will say so if a section cannot be done well.
How much does the work cost in Grafton or Colborne?
It varies with the size of the attic, how much material has to come out, and whether mould or rodents are involved. Most jobs land between about $1,500 and $4,500 or more. Full removals sit toward the top of that range. There is no charge for the quote.
Do you also work in the rest of Alnwick/Haldimand and Cramahe?
Yes. The surrounding concessions are on the same east-401 drive. See Cobourg, Brighton and Port Hope.
Get a free quote in Grafton or Colborne
Call 647-453-7037 or email info@thesameguysinsulation.com. Share the address and what you can see at the hatch; we’ll price it from that. We travel first only when the age or construction of the house makes a site check necessary.
The Same Guys Insulation
83 Henry Smith Ave, Bowmanville, ON L1C 0W1
Hours: Open Daily 9am–6pm
Related: Attic insulation removal in Durham Region · Ontario attic insulation rebate · Trenton