# Unionville $1,180 Patio Door Low-E Swap | Elite Glass Toronto

URL: https://eliteglassrepairtoronto.ca/projects/unionville-patio-door-low-e-swap/
Last-Modified: 2026-04-10
Author: The Elite Glass Repair Toronto Crew

Unionville, Markham

# Unionville $1,180 Patio Door Low-E Swap

A Unionville family's 80-inch fixed patio panel had fogged so badly they could not see the garden. The crew replaced only the sealed unit with a tempered Guardian ClimaGuard Low-E Argon IGU, keeping the frame, track and drywall.

By The Elite Glass Repair Toronto Crew · Finished April 10, 2026

![Clear new 80-inch patio door glass in a Unionville kitchen](/images/featured/clear-new-80-inch-patio-door-glass-looking-onto-a-.webp)

## The Problem

A family in Unionville had a two-panel sliding patio door off the kitchen, original to their late-1990s house. The fixed 80-inch panel had fogged over the past two winters until it looked frosted. The operable panel was still clear, and the frame and track were in good shape.

They had been quoted $5,800 for a new patio door, which would also have meant new trim and patching drywall.

![Foggy 80-inch fixed patio panel with haze between the panes](/images/content/foggy-80-inch-fixed-patio-door-panel-with-milky-ha.webp)

## The Fix

The crew confirmed the fog was between the panes, meaning a failed seal, and checked the frame, sill and track. Everything except the sealed unit was sound. We measured the glass size, read the spacer stamp and checked the overall unit thickness so the new unit would sit in the same pocket.

## Materials

-   One tempered double-pane sealed unit, both lites CSA A440 tempered
-   Guardian ClimaGuard Low-E coating on surface 3
-   Argon fill and warm-edge spacer in the original colour
-   New setting blocks and glazing tape

![Crew carrying a tall tempered Low-E patio unit through a side gate](/images/content/three-person-crew-carrying-a-tall-tempered-low-e-p.webp)

## Timeline

| Step | When |
| --- | --- |
| Measured and ordered | Day 1 |
| Unit fabricated | 12 business days |
| Install | One visit, about 2 hours |

The old foggy unit stayed in place until the new one arrived, so the house was never open. Our crew removed the exterior stops, took out the old unit, set the new one on fresh blocks and refitted everything. The drywall and trim were not touched.

## Final Cost

**$1,180 CAD**, installed, including removal and disposal of the old unit. That is about a fifth of the full door quote. The new unit carries a 10-year Guardian IGU warranty plus our written 2-year workmanship warranty, and the family can see the garden again.

Related service: 

patio door glass replacement

[/patio-door-glass-replacement/ →](/patio-door-glass-replacement/)

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Service Used

## Patio Door Glass Replacement Toronto

Double-pane sealed units for 68-96 inch patio panels, Argon fill, Low-E, tempered per CSA A440.

 

![Glazing crew carrying a tempered patio door unit across a Port Credit deck](/images/misc/three-person-glazing-crew-carrying-a-tall-tempered.webp) DOORS & SHOWERS

[/patio-door-glass-replacement/ →](/patio-door-glass-replacement/)

### 

Patio Door Glass Replacement Toronto

[/patio-door-glass-replacement/ →](/patio-door-glass-replacement/)

Patio door glass replacement for homeowners with a shattered or foggy 68-96 inch panel. We build double-pane sealed units with Guardian ClimaGuard or Pilkington OptiTherm Low-E and Argon fill, tempered both sides per CSA A440, and fit them to the existing slider in Port Credit, Lorne Park and Kleinburg backyards.

Panels run $650-$2,400 depending on size and coating. Replacing only the sealed unit spares a $3,500-$7,000 full patio door replacement, with a 10-year Guardian IGU warranty and our written 2-year workmanship warranty.

Includes In Scope

-   Tempered Low-E Argon sealed unit
-   Existing frame and track kept
-   Temporary panel while unit is built

10-14 business days | $650-$2,400

Get a written quote

[/contact/ →](/contact/)

[/patio-door-glass-replacement/ →](/patio-door-glass-replacement/)

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24/7 Emergency Dispatch

## Broken glass right now? The crew is on call 24/7.

2-hour arrival across the 416, 4-hour across the 905. Board-up tonight with 15mm OSB, permanent glass within 72 hours, and insurance direct-billed to Intact, Aviva, Economical and Co-operators.

Call 24/7 Dispatch: (416) 555-0100

[tel:+14165550100 →](tel:+14165550100)

 

Get a written quote

[/contact/ →](/contact/)

-   Written 2-year warranty
-   Published CAD prices
-   WSIB + $5M CGL

We do NOT repair automotive glass or windshields. Residential, commercial and storefront glass only.