Window and door replacement
Coastal Grove replaces windows and exterior doors across the Sunshine Coast with full-frame installs only. We cut back the siding, tie new membrane into your wall, air-seal the whole perimeter and finish with new trim inside and out, so the window keeps water out for decades. Both owners are Red Seal Glaziers. Our window replacements run $1,500–$2,000 per window with everything included.
Prices updated September 2026 · Langdale to Egmont
What a window replacement costs
Every window gets the same full-frame install, so the price covers the whole job, not just the unit. Large, custom or hard-to-reach openings cost more; we price each opening after a site visit.
| Per window, all in | $1,500–$2,000 New window, cut-back and re-flashed siding, membrane tied to the wall, full perimeter air seal, and new interior and exterior trim. |
|---|
What we handle
- Full-frame window replacement, never retrofit inserts
- Siding cut back so new membrane ties into your wall’s weather barrier
- Sill pans and head flashing
- Drywall or wood returns removed for a full-perimeter air seal with backer rod and sealant
- New interior and exterior trim
- Rot repair around old openings
- Exterior and patio doors
From first call to finished
- 1
Measure and assess
We measure every opening and check for rot or water damage behind the old frames.
- 2
Order
Lead times are usually 4–8 weeks from the manufacturer.
- 3
Install
We open up the wall around each window, set it properly, seal it and re-trim, working one room at a time so your house stays closed up at night.
What’s different here
Wind-driven rain
Coast storms push water sideways. How the window is tied into the wall matters more than the window brand.
Foggy windows
Condensation between panes means a failed seal. The glass can sometimes be replaced without replacing the whole window.
Windows & doors FAQ
How much does window replacement cost on the Sunshine Coast?
Our full-frame window replacements run $1,500–$2,000 per window with everything included: the window, cutting back and re-flashing the siding, new membrane tied into the wall, a full perimeter air seal, and new trim inside and out. Many quotes you’ll see online are lower because they’re for retrofit inserts, which leave the old frame and flashing in place.
Why don’t you do retrofit windows?
A retrofit (or “insert”) window sits inside the old frame. It’s cheaper, but it keeps whatever flashing and weather barrier were there before, and it can’t be tied into the wall properly. On the Coast, with wind-driven rain, that’s where leaks and rot start. We only install full-frame so we can stand behind the work.
How long does it take?
Most homes take 1–2 weeks on site depending on how many windows, and we work one room at a time.
Are there rebates for new windows?
Some. The CleanBC window and door rebates ended for invoices dated July 6, 2026 or later. BC Hydro offers $100 per window or door, up to $2,000, for units with a U-factor of 1.22 or lower installed by a licensed contractor, and FortisBC has similar and income-qualified offers. Check eligibility before you order; we’ll give you the product specs you need.
Other ways we can help
Custom homes →
Licensed residential builder (BC Housing #53228) now booking custom and high-performance homes for 2027, Gibsons to Pender Harbour. 2-5-10 home warranty.
Renovations →
Kitchens, bathrooms, additions and whole-home renovations on the Sunshine Coast by a licensed general contractor. One team from permit to final walkthrough.
Decks →
Composite, vinyl and cedar decks with aluminium railings, built for Sunshine Coast rain. Trex, Valor vinyl membranes and RainEscape dry-below systems.
Get a quote
We aim to reply within one business day. For new homes and major renovations, we’ll set up a site visit.