Bolton window opening after removal of the old insulated glass unit, with the original frame retained.

Signs maintenance is needed

  • A property manager needs a visual condition review across several insulated glass units.
  • Early edge, spacer or seal indicators need to be documented before replacement planning.
  • A building portfolio needs units prioritized for monitoring, budgeting or scheduled replacement.
New insulated window glass with internal decorative grille installed in Bolton

What we can do during the visit

  • Visual condition review of accessible insulated glass units and edge conditions.
  • Condition notes that support monitoring and replacement budgeting.
  • Prioritization of openings that may need near-term or later work.
  • A recommendation for glass replacement when the inspection confirms a failed unit behind visible haze or moisture between panes.

Maintenance or adjustment is appropriate when

A planned inspection identifies the condition of the glass and seals. Repair is recommended only when the review confirms a failed unit or another specific service need.

Move to repair or replacement when

Confirmed failed or damaged units need Window Glass & IGU Replacement or the appropriate Door or Storefront Glass replacement service.

Parts, compatibility and property details
Parts and systems
Insulated glass units · Spacer / edge condition · Glazing pocket / accessible perimeter · Visible seal indicators · Multiple window openings
Typical properties
Commercial properties · Multi-unit residential · Office · Managed portfolios
Standards and requirements
Applicable safety-glazing requirements are considered where relevant to the opening · Inspection findings are visual condition observations rather than a laboratory seal-life certification

Preventive maintenance workflow

  1. 01

    Confirm the property, opening count and inspection purpose.

  2. 02

    Review accessible units and document visible condition indicators.

  3. 03

    Organize findings for monitoring, budgeting or replacement planning.

  4. 04

    Explain the measured glass replacement needed for any confirmed failed units.

Completed projects for this service

1 project

View all project categories

Questions about IGU & Glass Seal Inspection, Repair & Replacement Planning

Who is a planned IGU inspection for?

It is intended for property managers, commercial owners and multi-opening sites that need condition notes before budgeting or scheduling replacement work.

What does the inspection document?

It records visible unit, spacer, edge and seal-condition indicators that can help prioritize monitoring and replacement planning.

Which service should I choose for one visibly hazy residential window?

For haze or moisture between the panes of one residential window, start with Foggy Glass & Failed Window Seal service. Planned IGU inspections are intended for portfolios, commercial properties and multiple openings.

Can inspection findings support phased replacement planning?

Yes. Accessible openings can be grouped by apparent priority so a property can plan monitoring and replacement in stages.

Toronto & GTA service coverage

Toronto office portfoliosNorth York mixed-use propertiesMississauga commercial properties TorontoMississauga

Plan maintenance before tenants or customers report failures

Send photos and a short note. We will review the issue and recommend the next step.

DoorWin Google Reviews

Martin 4 reviews • 1 photo
★★★★★

Great price

I had a foggy window and was looking for some one to replace it for a fair price , their team showed up the same day for an estimate and got a fair price compare to other “big” companies, they did an amazing job got a new glass installed within a week , really recommend ! :)

Repair wait time
0–1 hr

Curtis Savage 8 reviews
★★★★★

I hired DoorWin services to replace two cracked glass windows for a unit at my triplex. An exterior porch window and interior stairwell window I just needed the panes of glass replaced and not the entire frame . DoorWin was happy to do the job. Unlike some other companies who wanted to replace the entire frame at a higher cost. They were very quick with a quote and were able to perform the job on an extremely tight timeline that I had to unexpectedly move up. Very professional. Friendly. Dependable. Competitive prices. Took away all materials and left a clean worksite. Would highly recommend and will work with them again if I need another window repair.

Ike Kvapil 6 reviews • 4 photos
★★★★★

Max at DoorWin completed a professionally executed job on our front door while being a pleasure to deal with...would recommend him for any services their company provides.

J1330i 2 reviews
★★★★★

Guys, thank you again for the excellent services!! Extremely fast and professional at a fair price...thanks again!!!

Nicole Seahra Local Guide • 62 reviews • 19 photos
★★★★★

Doorwin Services alongside Alex were amazing. Came in same day. Went above and beyond. Thanks so much!

Anastasiia Dashkevych 7 reviews
★★★★★

Great experience with the window replacement. The team was professional, efficient, and the quality of work exceeded expectations. Everything was completed on time and looks amazing. Highly recommend!!!!!wont be disappointed:)

Amir Malek 5 reviews
★★★★★

Had an amazing experience with Doorwin Services for my metal door installation. The quality of work, attention to detail, and professionalism were top notch from start to finish. Big thanks to Maksim for all his hard work and help throughout the process — everything was installed perfectly and the final result looks great. Highly recommend Doorwin Services if you want quality work done right.

yarin danan 9 reviews • 4 photos
★★★★★

Excellent service. I needed help with a broken window. They did everything quickly and efficiently. I recommend them

Oleksandr Branytskyi 4 reviews • 2 photos
★★★★★

Excellent service from start to finish. The work was completed professionally, quickly, and with great attention to detail. The technician gave us several options on how to strengthen and improve the glass unit, and we chose the best solution. Everything looks great now. Highly recommend!

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