Skylight Contractor in Mississauga

Common questions about skylight contractor

How much does skylight installation cost in Mississauga?

A single standard skylight install, including flashing and interior finishing, typically runs from around $1,500 to $4,000 depending on the unit type (fixed, vent-operated, or tubular), roof material, and whether new framing or electrical wiring for a remote-opening unit is needed. Replacing an existing skylight with a like-for-like unit usually costs less than a fresh install through a new roof opening.

How often do skylights need to be replaced or resealed?

Most skylights last 15 to 20 years before the seals, flashing, or glazing start to fail. Flashing is often the first thing to go, sometimes within 10 to 15 years, especially if it wasn't matched properly to the roofing material during the original install. Regular roof inspections should include a check of skylight seals and flashing condition.

What should I expect during a skylight installation?

A crew typically cuts the roof opening, frames it to code, sets the skylight or curb, installs step and counter flashing that ties into the surrounding roofing, then insulates and finishes the interior shaft with drywall or trim. Most single-unit jobs take one to two days, weather permitting, since the roof is open for part of the process.

How do I judge whether a skylight contractor did quality work?

Check that the flashing overlaps correctly with the surrounding shingles or membrane rather than relying on caulk alone, that the interior shaft is properly insulated to prevent condensation, and that there's no visible gap or staining around the frame after the first heavy rain. A contractor who explains their flashing method before starting is usually a good sign.