Commercial Aluminum Window Repair
Fogged glass, leaking frames, broken hardware — Nextgen's technicians repair all types of commercial aluminum windows across the GTA, fast and right the first time.
Professional Aluminum Window Repair
Failed commercial windows aren't just an eyesore — they're an energy cost and a liability. Fogged glass, water infiltration, drafts, and broken hardware all affect your building's performance and occupant comfort.
Nextgen Door Systems provides fast, expert aluminum window repair for offices, retail buildings, industrial properties, schools, and high-rises across the Greater Toronto Area. We source and supply glass units specific to your window system, along with gaskets, hardware, and sealants to get the job done right.
With over 30 years of hands-on experience, Nextgen and his team diagnose window problems accurately and fix them permanently — no band-aid solutions, no unnecessary replacements.
Call (416)-759-0909Window Repair Services We Provide
- Aluminum window frame repair and realignment
- Broken seal and fogged glass unit replacement
- Cracked or shattered glass panel replacement
- Casement, awning, and sliding window hardware repair
- Window operator (crank) replacement
- Latch, lock, and handle replacement
- Weatherstrip and gasket replacement
- Screen frame repair and replacement
- Thermal / insulated glass unit (IGU) replacement
- Full window sash and frame replacement
Common Window Problems We Solve
Fogged or Cloudy Glass
Failed seal between panes — we replace the insulated glass unit (IGU) to restore clarity and insulation.
Water Leaking Around Frame
Failed perimeter sealant or gaskets — we clean, re-seal, and re-glaze to stop infiltration.
Window Won't Open or Close
Worn operators, bent tracks, or failed hardware — we repair or replace the specific component.
Drafts and Air Leakage
Replace weatherstripping, gaskets, and seals to restore the thermal envelope.
Damaged or Bent Frame
Frame repair or full sash replacement — we match existing anodized or painted finishes.
All Window Systems We Service
Fixed Aluminum Windows
Non-opening aluminum-framed fixed-lite windows used in curtain walls, storefronts, and commercial facades. We replace glass units, repair frames, and reseal failing perimeter joints.
Sliding Aluminum Windows
Horizontal sliding aluminum windows common in office towers and institutional buildings. We repair or replace rollers, tracks, lift rails, locks, and glass units.
Casement & Awning Windows
Crank-operated aluminum casement and awning windows. We replace broken operators, hinges, hardware, seals, and glazing — restoring full operation quickly.
Curtain Wall Windows
Glass and aluminum curtain wall systems on commercial towers and institutional buildings. We replace failed glazing units, repair mullion seals, and address water infiltration.
Storefront Windows
Fixed and operable windows integrated into aluminum storefront systems. We replace IGUs, repair frames, and address fogging or seal failures without full system removal.
Spandrel & Vision Glass
Replacement of spandrel panels and vision glass in aluminum framing systems — matching existing glass specifications for a seamless appearance.
Stop Drafts & Leaks
Proper sealing and glazing to restore your building envelope
Energy Efficiency
IGU replacement restores insulation and cuts heating costs
Matched Aesthetics
We match existing glass specs and frame finishes exactly
We Serve the Entire
Greater Toronto Area
From downtown Toronto to Hamilton, our certified technicians are always nearby. We provide fast, same-day response across the GTA and surrounding regions.
Our Base Location
1881 Lawrence Ave E, Scarborough, ON M1R 2Y3
Areas We Cover
Don't see your area? Call us — we may still be able to help.
Leaking or Foggy Windows?
Don't let failing windows drive up your energy bills. Call Nextgen's team for a fast assessment and same-day repair.