5″ vs 6″ Eavestroughs in Mississauga

When installing or replacing eavestroughs, size matters. The choice between a 5-inch and 6-inch eavestrough affects how well your system handles rain, snowmelt, and roof runoff. Century Aluminum helps homeowners compare 5″ vs 6″ eavestroughs in Mississauga based on roof size, layout, and drainage requirements.

Many Mississauga homeowners consider upgrading to a larger size after experiencing overflow or repeated drainage issues.

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A 5-inch eavestrough is the most commonly installed size on residential homes. It is suitable for many roof layouts when properly installed with adequate downspout capacity.

5″ eavestroughs are often appropriate when:

• Roof areas are moderate in size
   
• Drainage layouts are straightforward
   
• Water volume is manageable
   
• Proper slope and downspout placement are used

A 6-inch eavestrough offers greater water-carrying capacity than a standard 5-inch system. It is often recommended for larger roofs, steeper pitches, or areas that experience heavy rainfall and snowmelt.

6″ eavestroughs are commonly chosen when:

• Roof surfaces generate higher runoff
   
• Overflow has occurred with smaller systems
   
• Homes have complex rooflines
   
• Additional drainage capacity is needed

While both sizes can function well when installed properly, the main differences relate to how much water the system can manage during peak conditions.

Comparison highlights:

• 6″ eavestroughs handle significantly more water
   
• 5″ systems are more common and lower profile
   
• Larger systems reduce overflow risk
   
• Proper downspout planning matters for both sizes

Roof pitch, surface material, and layout all influence how quickly water reaches the eavestrough. Steeper roofs shed water faster, increasing demand on the system.

Homes with valleys, multiple roof sections, or large surface areas may benefit from increased capacity even if the footprint isn’t unusually large. 

Reviewing Why Proper Eavestrough Installation Matters helps explain how design affects performance.

The right eavestrough size depends on how water moves across your roof and how the system is designed to manage it. In some cases, upgrading to a 6″ system helps prevent overflow and reduces maintenance.

We help Mississauga homeowners choose the right option based on drainage needs, roof layout, and long-term performance — not just appearance.

In some situations, choosing between sizes is part of a larger Repair vs Replacement decision.

Century Aluminum is a family-owned exterior contractor founded in 2011. All eavestrough installations are completed by our trained, insured, in-house crew.

Homeowners choose us because we offer:

• 600+ verified reviews across Google and HomeStars
   
• HomeStars Verified contractor and award recipient
   
• WSIB compliant and fully insured
   
• Working at Heights certified installers
   
• Alu-Rex Certified installer
   
• Clear communication and reliable follow-up
   

Learn more about our company at CenturyAluminum.ca.

We install both 5″ and 6″ eavestrough systems throughout Mississauga on homes with varying roof designs, lot layouts, and exposure to heavy rain and snowmelt. Local experience helps us recommend the right size for each property. 

If you’re deciding between 5″ and 6″ eavestroughs, contact Century Aluminum for a free assessment. We help Mississauga homeowners select systems designed for proper drainage and long-term performance. 

Early scheduling fills quickly during peak seasons. 

Get a Free Estimate today