Skylight Replacement in Toronto & the GTA

Fogged glass you cannot clean, a yellowed acrylic dome from the eighties, drips during a thaw, or a unit the shingle crew warned you about — sooner or later every skylight reaches the point where repair money is wasted money. Sealed units lose their gas fill and fog between the panes; older domes go brittle and hazy. Once that happens, replacement is the only fix that lasts.

The good news is that a replacement skylight rarely means opening up your ceiling. Where the existing opening fits a current standard size — and most do — the old unit comes out, the new one goes onto the same opening or curb, and fresh flashing plus ice and water membrane ties it back into the roof. The glass itself has come a long way: modern low-E, argon-filled units leak far less heat than what they replace, and laminated inner panes are a sensible upgrade over a bed or stairwell.

One piece of honest scheduling advice: if a leaking skylight replacement and a reshingle are both on the horizon, do them together. The flashing gets woven into the shingles, so replacing the skylight during the roof job costs meaningfully less than as a standalone visit — and reusing a twenty-year-old skylight on a brand-new roof is a decision people regret within a winter or two. We will quote it both ways.

• Removal and disposal of the old skylight, dome or roof window
• New deck-mount or curb-mount unit matched to the existing opening wherever possible
• Curb rebuild or adaptation where the old unit was a discontinued size
• Full manufacturer flashing kit installed over new ice and water membrane
• Shingle or membrane tie-in around the unit so the surrounding roof sheds water properly
• Inspection of the shaft for condensation staining, with insulation topped up where it is thin
• Interior trim check and touch-up at the ceiling opening
• Cleanup and a water-tightness check before we leave

• Skylight size and whether the existing opening matches a current standard unit
• Fixed versus venting versus powered replacement — like-for-like is cheapest
• Curb condition; a rotted or non-standard curb has to be rebuilt before the new unit lands
• Roof type and pitch — flat-roof curb units and steep shingle roofs each add their own labour
• Glazing upgrades such as triple pane, laminated glass or solar-control coatings
• How many units are being swapped; second and third skylights in the same visit cost less each
• Whether the work rides along with a reshingle or stands alone

Every home is different, so we don’t publish flat prices — the quote is free and based on your actual job.