Window & Door Repair in Thornhill
Reliable glass and window repair for Thornhill homeowners — from Royal Orchard to Thornlea. We fix it on-site, usually the same day.
Thornhill sits at the crossroads of Vaughan and Markham, and its housing stock reflects that mix — mid-century brick bungalows along Centre Street, estate homes in Royal Orchard, and modern townhomes near Promenade Mall. Whatever the age of your home, windows and doors wear out. Failed seals cause fog between panes, old crank mechanisms seize up, and door glass cracks from settling or impact.
We handle all of it without the cost and hassle of full window replacement. LuminaSky Glass replaces only the component that failed — the sealed glass unit, the operator hardware, or the door lite — so your frames, trim, and siding stay untouched. Most jobs are done in a single visit, and you save 60–80% compared to ripping everything out and starting over.
What We Fix in Thornhill
Foggy Glass / Sealed Unit Replacement
Moisture between your panes means a broken seal. We swap out the insulated glass unit and leave the frame intact — often completed the same day you call.
Glass Replacement
Cracked or shattered glass in windows, sidelights, or patio doors. We measure, cut, and install on-site or source custom tempered and laminated glass.
Window Crank & Operator Repair
Stuck casement or awning window? We replace worn-out crank operators with compatible hardware — no need to swap the entire window.
Front Door Glass Inserts
Replace outdated or damaged decorative door glass with modern inserts. We carry standard sizes and order custom lites for non-standard doors.
Screen & Storm Doors
Storm door glass swaps, new screen doors, and retractable screen installations for Thornhill homes.
Skylight Repair
Foggy or leaking skylights fixed without a full roof opening. We replace the glass and re-seal the unit for all skylight brands.
Why Thornhill Homeowners Choose Us
Fast Response
Same-day or next-day service across Thornhill. Emergency calls answered within 2 hours.
Repair, Not Replace
We fix the broken part — the glass, the crank, the seal — without tearing out your whole window or door.
1-Year Warranty
Every repair backed by our warranty. If it fails, we come back and fix it — no questions asked.
We Come to You
Fully mobile service. We bring everything we need to your door — no trips to a shop required.
Areas We Cover in Thornhill
We serve all neighborhoods across Thornhill and surrounding areas. Same-day or next-day service available throughout:
Frequently Asked Questions — Thornhill
How quickly can you come to Thornhill?
My home is older — can you still get parts for the windows?
Is it worth repairing a foggy window or should I replace the whole thing?
Do you cover both the Vaughan and Markham sides of Thornhill?
Get a Free Quote in Thornhill
Dealing with a foggy window or broken glass in Thornhill? Send us a photo on WhatsApp for a fast quote — or call us any time.