Here's a fact that surprises most homeowners: your garage door is the single largest visual element on your home's front face. On a typical Toronto home with an attached garage, the door occupies 30-40% of the street-facing facade. When it's covered in road splash, exhaust film, salt stains, and green mould along the bottom — your entire home looks neglected. And the fix takes 10-15 minutes with a pressure washer.
Why Garage Doors Get So Dirty in Toronto
- Road splash zone: The bottom 2 feet of every garage door faces constant splash from vehicles, rain runoff, and snowmelt carrying road salt, sand, and oil. This zone gets dirtier 10x faster than the upper panels.
- Exhaust film: Every time you warm up your car in the driveway (especially in winter), exhaust deposits a thin oily film on the door. Over a winter of daily warm-ups, this builds into a visible grey-brown layer.
- Salt crystallization: Toronto's 130,000+ tonnes of annual road salt gets tracked up driveways and splashed onto doors. It crystallizes as white spots and streaks that look permanent but are actually salt deposits.
- Green algae base: The bottom of garage doors is a moisture trap — snow piles against it all winter, rain splashes constantly. This creates a green algae strip along the bottom 6-12 inches, especially on north-facing garages.
- Oxidation: Steel and aluminum doors develop chalky oxidation over 5-10 years. This isn't dirt — it's the paint/finish breaking down from UV exposure. Cleaning improves appearance but can't reverse oxidation (repainting is the fix).
PSI Guide by Material
| Material | Safe PSI | Nozzle | Notes |
|---|---|---|---|
| Steel (most common) | 1,500-2,000 | 25° | Durable. Pre-treat bottom 2ft with degreaser. Check for rust chips before blasting. |
| Aluminum | 1,200-1,500 | 25° or 40° | Dents easily at close range. Maintain 18"+ distance. Common on older Toronto homes. |
| Wood | 1,000-1,200 | 40° | Work WITH grain. Check for soft/rotting sections first. May need restaining after cleaning. |
| Vinyl/composite | 1,200-1,500 | 25° or 40° | Won't dent but can warp if exposed to high heat. Keep washer exhaust pointed away. |
| Glass panels | 800-1,000 | 40° | Modern garage doors with glass inserts. Treat glass like windows — gentle, no direct blast. |
Clean bottom-up, rinse top-down: This sounds backwards but it's critical. When you spray a dirty surface from the top, dirty water runs down and creates streaks that set into the lower panels. By cleaning bottom-up, you prevent dirty runoff from sitting on uncleaned surface. Then rinse from top-down to flush everything clean. This one technique is the difference between a clean door and a streaky mess.
The 10-Minute Garage Door Clean
- Pre-treat bottom 2 feet with degreaser/all-purpose cleaner. Let sit 5 minutes.
- Wash bottom-up with 1,500 PSI, 25° nozzle, 18" distance. Overlapping horizontal passes.
- Hit the tracks and weatherstrip — dirt collects in the vertical tracks and bottom seal.
- Rinse top-down with clean water, lower pressure (1,000 PSI or garden hose).
- Dry naturally — leave door open 30 minutes if weather permits to air-dry inside seal.
The "sell your home" angle: Real estate agents know: a clean garage door is worth $1,000-$3,000 in perceived home value. Buyers make judgments in the first 7 seconds of seeing a home. Your garage door IS that first impression for homes with front-facing garages. A $50 cleaning generates a 20-60x ROI in perceived value. Before listing, add garage door cleaning to your pre-sale prep list alongside window cleaning and driveway washing.
Bundle it: Never book a standalone garage door cleaning — it's not worth the trip for anyone. Instead, add it to: (1) Driveway pressure washing ($25-50 add-on), (2) Full exterior package (usually included free), (3) Window cleaning day ($50 add-on). MANTLE includes garage door cleaning in all pressure washing packages — the washer is already running, your door is right there.
Add Garage Door to Your Exterior Clean
Included in all pressure washing packages. 10-15 minutes. Massive curb appeal difference.
Get Free Estimate →Or call (416) 206-3274
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