8 Inch Commercial GutterBrush Gutter Guard
8 Inch Commercial GutterBrush Gutter Guard
GutterBrush Canada · 8″ Commercial
The biggest gutters in Canada collect the biggest messes. The 8 Inch Commercial GutterBrush is one of the only leaf guards made for full-size 8″ (20.3 cm) commercial gutters — a heavy-duty brush that keeps massive amounts of debris out while water flows freely, installed with no tools, no nails, no cutting and no drilling.
Choose Your 8 Inch Commercial GutterBrush Kit
4 × 3 ft sections + 2 × 18″ fillers · about $13.93/ft
Best for: trialling on a problem run or protecting the gutter over a main entrance.
8 × 3 ft sections + 2 × 18″ fillers · about $13.30/ft
Best for: longer runs on barns, arenas and institutional buildings. Bigger jobs: ask for a volume quote.
Why the 8 Inch GutterBrush Works on Large Commercial Gutters
- Full 8″ (20.3 cm) brush: fills the largest commercial and agricultural gutters.
- No fasteners or roof penetrations: sections drop in by hand.
- Keeps high-volume gutters flowing: water passes straight through the bristles.
- Fewer cleanouts: less debris reaches the bottom of the gutter.
- Lift out to service — no panels to unscrew.
- Deters birds and pests from nesting in open gutters.
Which Canadian Commercial Gutters the 8 Inch GutterBrush Fits
- 8″ (20.3 cm) commercial box-style gutters on commercial, agricultural and institutional buildings
- Large K-style and half-round gutters — aluminum, copper, PVC, wood or steel
- Any roof type — asphalt shingle, cedar shake, slate, tile, rubber or metal
Quick size check: measure straight across the top opening. 8″ (20.3 cm) = this product. 7″ gutters take the 7 Inch Commercial.
How Much 8 Inch GutterBrush Do I Need?
- Measure each gutter run in feet (or metres × 3.28).
- Add the runs together.
- Round up: up to 15 ft = one 15 ft box; 16–27 ft = one 27 ft box; longer, combine boxes — or send us the total for volume pricing.
Example: a 50 ft barn eave = two 27 ft kits (54 ft), or one 27 ft + two 15 ft kits for 57 ft.
Commercial GutterBrush vs Ice Dams Over Entrances
A clogged commercial gutter holds standing water that freezes solid, feeding ice dams and icicles over entrances and loading areas. GutterBrush keeps the trough open so meltwater can drain, and its black UV-treated bristles absorb heat on sunny days to help ice along the gutter line melt sooner.
GutterBrush vs Other Commercial Gutter Guards
| GutterBrush | Screens / mesh covers | Foam inserts | |
|---|---|---|---|
| Available in 8″ | Yes — purpose-sized | Limited, often custom | Rarely |
| Install | Drop in by hand — no tools | Cut and fastened, often by a contractor | Cut to length |
| Roof contact | None | Often fastened at the roof edge | None |
| Cleaning access | Lift out in seconds | Unfasten panels | Lift out |
8 Inch Commercial GutterBrush Specifications (Imperial & Metric)
| Fits | 8″ (20.3 cm) commercial box-style, K-style and half-round gutters |
| Brush diameter | 8″ (20.3 cm) actual |
| Section length | 3 ft (91 cm) sections + two 18″ (46 cm) filler pieces per box |
| Kits | 15 ft (4.6 m) · 27 ft (8.2 m) |
| Material | Black UV-treated polypropylene bristles on a rust-resistant wire core |
| SKUs | GB-8-15 · GB-8-27 |
| Ships from | Paris, Ontario — to every Canadian province and territory |
How to Install 8 Inch Commercial GutterBrush in 4 Steps
- Clean the gutter once and flush the downspouts.
- Lay sections end to end in the trough — no fasteners.
- Bend around corners by hand and finish with the 18″ (46 cm) fillers, or fold a section back on itself.
- Check after the first big storm that water reaches the downspouts.
Full walkthrough: How to install GutterBrush. Follow your site's fall-protection and ladder/lift safety rules.
8 Inch Commercial GutterBrush FAQs
Do you offer volume pricing for commercial jobs?
Yes. Send your gutter size and total linear footage through our contact page and we'll quote it, usually within one business day.
How do I tell an 8 inch from a 7 inch commercial gutter?
Measure straight across the top opening: 8″ (20.3 cm) takes this model, 7″ (17.8 cm) takes the 7 Inch. Send a photo with a tape across the top if in doubt.
Does it need a contractor to install?
No — there are no fasteners. Anyone who can safely access the gutter can drop the sections in.
Does GutterBrush stop pine needles?
It stops leaves and larger debris well. Needles and seeds can catch in the top of the brush but generally stay up there to dry and blow off; under heavy pines, plan on an occasional shake-out.
Is GutterBrush maintenance-free?
No gutter guard is. When it needs attention, lift sections out, shake or hose them off, and set them back.
Where does my order ship from — will I pay duties?
Orders ship from our stock in Paris, Ontario, priced in Canadian dollars. No duties, no brokerage fees.
Outfitting a Commercial Building in Canada?
Send your gutter size (inches or cm) and total run length for a volume quote — or a photo if you're not sure which size fits. Usually back within one business day.
Get my commercial quote →Size guide