Insulated Glass Unit / Sealed Unit Replacement

Foggy, failed, or broken sealed units? We replace the glass — not the whole window. Restore clarity, comfort, and energy efficiency to your home or business in Victoria, BC.

Schedule your quote today

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Locations We Serve

Find Your Location

Greater Victoria
Sidney & North Saanich
Langford & Colwood
Sooke & Metchosin
Duncan

WHAT ARE IGUS?

Understanding Insulated Glass Units

Insulated glass units (IGUs) — commonly called sealed units or double-pane windows — are the glass component inside your window frame. They consist of two or three panes of glass separated by a spacer bar and sealed around the edges.

The sealed space between the panes creates an insulating barrier that reduces heat transfer, minimizes outside noise, and improves your home’s overall energy performance.

Over time, seals can break down due to age, sun exposure, or temperature fluctuations. When the seal fails, moisture enters the space between the panes — causing that familiar foggy, cloudy appearance that no amount of cleaning will fix.

DO YOU NEED REPLACEMENT?

Signs Your Sealed Unit Has Failed

If you notice any of the following, your insulated glass unit likely needs to be replaced. The good news — we can replace just the glass, keeping your existing window frames intact.

Fogging Between Panes

Condensation or a milky haze trapped between the glass panes is the most common sign of seal failure. This moisture cannot be cleaned from either side.

Cloudy or Hazy Appearance

A persistent cloudy, hazy look that obscures your view — even on a clear day — means the glass unit is no longer performing as intended.

OUR PROCESS

What Our Sealed Unit Replacement Includes

From inspection to installation, we handle every step, so you get crystal-clear windows without the cost or disruption of a full window replacement.

01

Consultation & Quote

An in-home consultant will assess your existing windows to identify failed sealed units, take rough measurements and discuss options such as argon gas, LowE coatings, etc. and then send you a quote.

02

Measurement

Once your quote is approved an installer will come and take a precise measurement for exact-fit replacement.

03

Removal of Failed Unit

We carefully remove the old, failed sealed unit from your existing window frame, preserving the frame and surrounding finishes.

04

Professional Installation

The new IGU is installed and properly sealed into your existing frame — restoring full thermal performance, clarity, and weather protection.

05

Clean-Up & Final Check

We clean the work area, inspect the finished installation, and ensure everything meets our quality standards before we leave.

WHY REPLACE

Benefits of Sealed Unit Replacement

Replacing failed insulated glass units is one of the most cost-effective upgrades you can make to your home or commercial property.

Restored Clarity & Curb Appeal

Eliminate foggy, stained glass and enjoy a clear, clean view that instantly refreshes the look of your property.

Improved Energy Efficiency

A properly sealed IGU with argon gas fill and lowE coating will reduce heat loss in winter and heat gain in summer, lowering your energy bills year-round.

Reduced Condensation & Mould Risk

Eliminating moisture between panes prevents the conditions that lead to mould growth on frames and surrounding walls.

Enhanced Sound Insulation

New sealed units with differing glass thickness can significantly reduce outside noise — ideal for homes near busy roads or urban centres.

Save vs. Full Window Replacement

Replacing just the sealed unit is significantly more affordable than replacing the entire window and frame assembly.

Extend the Life of Your Windows

Your existing frames may have decades of life remaining. A new sealed unit brings them back to full performance.

Customer Reviews

Hear What Our Customers Have To Say

"Thanks for an impeccable job done by two extremely competent, hard-working and personable employees--(Phil and Gord) We will recommend Thermal King Glass to everybody. They worked so hard and cleaned up too."
- Nancy and Mike
"... the Strata Council would like to let you know how pleased we were with the crew Thermal King Glass sent out for our window installations. Gordon, Al, Jesse and the two young men who helped on the first day...did an excellent job. Their hard work, attention to detail and workmanship were all first rate, plus they certainly went above and beyond with customer service. Also we couldn't help but notice, as a team how well they worked together. It really was a positive experience for us."
- Eva P.
Strata President
"…In a day and age when quality and service is becoming a rarity, I felt it was important to write this letter to thank John and TK Glass for a job well done and service that exceeded my expectations…"
- C. Daiken
"I had Thermal King Glass come out and install a replacement for a busted window in my basement. Sean came on time, quickly assessed the situation, had me a quote via email within a day or two. We booked a time and it was done perfectly within a couple of weeks. Clean and Tidy, no fuss!"
- Dan L.

GLASS OPTIONS

Available Glass Types

We offer a range of glass types and configurations to match your existing windows or upgrade their performance.

1 - Clear Glass

Standard clear float glass for maximum light and visibility

2 - Low-E Coated

Low-emissivity coating to reflect heat and block harmful UV rays

3 - Tempered

Safety glass required for doors, skylights, and high-risk areas

4 - Laminated

Enhanced security and sound reduction with bonded interlayer

5 - Tinted

Reduce glare and solar heat gain while maintaining privacy

6 - Patterned / Obscure

Decorative or privacy glass for bathrooms and accent windows

Applications

Windows & Doors We Service

We replace sealed units in virtually any residential or commercial window and door application.

Single & Double Hung Windows

Casement Windows

Sliding Windows

Picture Windows

Bay & Bow Windows

Patio Doors

French Doors

Sliding Glass Doors

Skylights

Commercial Storefronts

Office Windows

Townhomes & Condos

Custom Shapes & Sizes

Insulated Glass Unit & Sealed Unit Replacement Victoria

Get Started With Your Commercial Project

We provide value for your dollar in the glass products and services we sell by:

  • Using top-quality components and technology
  • Sourcing cutting-edge glazing technology
  • Seeking out the most durable solutions for every situation
  • Partnering with industry leaders in commercial and residential window and door systems to back up our in-house capabilities
  • Providing in-depth knowledge and resources

Quality is assured through after-sales service and warranty that demonstrate our confidence in our products and services.

Insulated Glass Unit & Sealed Unit Replacement Quotes

Schedule a quote today

"Thanks for an impeccable job done by two extremely competent, hard-working and personable employees--(Phil and Gord) We will recommend Thermal King Glass to everybody. They worked so hard and cleaned up too."
- Nancy and Mike
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Our trained technical staff provides professional, reliable design, installation and repair services.

Get in Touch

250 Island Hwy
Victoria, BC Canada
V9B 1G2