A lot of Guelph homes built in the 1960s–80s were insulated to R12–R20 in the attic, well under today's recommended R60. Topping up an existing attic with blown-in cellulose or fibreglass is usually a one-day job with an outsized impact on comfort and heating cost.

Signs an attic needs a top-up: visible ceiling joists (insulation level below the joist height), ice damming along the roof edge in winter, uneven room temperatures, or a heating bill that seems high for the home's size.

Attic hatches, pot lights, and bathroom fan penetrations are common weak points where insulation is thin or missing entirely — worth checking even in a home with otherwise decent attic insulation.

Typical Guelph pricing: $1.50–$3.00 per sq ft depending on current insulation level and attic accessibility.

FAQs — Attic Insulation

Do you need to remove my old insulation first?

Usually no — blown-in insulation can go directly over most existing fibreglass or cellulose. Removal is only needed if the old insulation is contaminated (rodents, mould, or knob-and-tube era material).

Get a Quote — Attic Insulation

One local operator. Written quote. No obligation.

Attic Insulation in Guelph

FAQs — Attic Insulation

Do you need to remove my old insulation first?

Get a Quote — Attic Insulation