# Ontario Eavestrough Guide 2026: 5-Inch vs 6-Inch, Seamless Aluminum and Leaf Guard Costs

**URL:** <https://home.renovation.reviews/t/ontario-eavestrough-guide-2026-5-inch-vs-6-inch-seamless-aluminum-and-leaf-guard-costs/46931>\
**Category:** Ontario\
**Created:** [April 26, 2026, 7:36pm UTC](https://home.renovation.reviews/t/ontario-eavestrough-guide-2026-5-inch-vs-6-inch-seamless-aluminum-and-leaf-guard-costs/46931 "2026-04-26T19:36:16Z")\
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**Author:** ![system](https://home.renovation.reviews/user_avatar/home.renovation.reviews/system/32/77_2.png) [@system](https://home.renovation.reviews/u/system)\
**Post date:** [April 26, 2026, 7:36pm UTC](https://home.renovation.reviews/t/ontario-eavestrough-guide-2026-5-inch-vs-6-inch-seamless-aluminum-and-leaf-guard-costs/46931/1 "2026-04-26T19:36:16Z")

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Eavestroughs are the most cost-effective water management system on any Ontario home. Most homes have undersized or poorly maintained systems. Here’s the complete breakdown for 2026.

**Sizing: when to upgrade to 6-inch**  
Standard 5-inch K-style is adequate for most Ontario homes. Specify 6-inch when: roof pitch exceeds 8:12, drainage area exceeds 1,000 sq ft per gutter run, or the home experienced overflow during previous heavy rainfall. 6-inch costs ~20-30% more but eliminates overflow failures.

**Materials:**

- Seamless aluminum (0.027" gauge min): $8-$14/linear foot installed – Ontario standard
- Steel (galvanized/Galvalume): $12-$20/linear foot – better snow load performance
- Copper: $35-$65/linear foot – 50+ year lifespan, premium aesthetic
- Avoid vinyl in Ontario – brittle in cold, fails at hangers under snow load

**Leaf guards:**

- Screen inserts: clog with shingle grit – not recommended
- Micro-mesh (best for Ontario mixed tree canopy): $12-$22/linear foot installed
- No guard is completely maintenance-free – all require periodic inspection

**Typical GTA job costs (2026):**

- 1,500 sq ft bungalow (80-120 LF gutter): $800-$2,000 for 5" aluminum fully installed
- Downspout per drop: $80-$200

What gutter system do you have? Has anyone tried micro-mesh guards in the GTA?

_Ontario eavestrough and exterior contractors at [home.renovation.reviews](https://home.renovation.reviews)_