serving calgary & area since 1984

Calgary eavestrough installation, repair, and replacement

Seamless 5″ and 6″ aluminum eavestrough built on-site and colour matched to your home. We’ve installed more than 2 million feet of eavestrough since our founding in 1984.

All eavestrough installations backed by our Big 5-year warranty.

Colour-Matched

Your eaves will match your home’s exterior

Slope & Drainage Verified

Every length is tested to ensure proper water drainage

Expert Installation

Our eaves will outlast the building we put them on!

5-Year Warranty

+ 50-year material warranty

Your home doesn’t want water where it shouldn’t be.

Your eavestrough has one job: moving water off the roof and away from the foundation, and wouldn’t you know… Calgary’s weather works against it all year.

Between hail, spring melt, freeze and thaw swings, sudden summer storms, windy chinooks, and everything else the prairies throw at them, your eaves really have their work cut out for them!

A properly sized, properly sloped gutter system handles all of it and more though, so you never have to think about it again.

Sound familiar?
A damp line down the parging
A trench carved into the flower bed
Ice sheeting the walk after every chinook
Water sheeting over the trough edge in a storm
All of these get diagnosed during a free on-site quote.

Residential Eavestrough Services

Eavestrough installation, repair, and replacement

home in NW Calgary with 6 inch eavestrough and hardie board

Seamless Eavestrough Installation

Fabricated on-site from continuous aluminum coil, cut to your exact roofline with joints only at the corners or for extremely long lengths.

5" and 6" profiles; downspouts, hangers, and extensions included
Every length is slope checked to confirm proper drainage
About 3 days from quote to completion

Eavestrough Repair

Calgary breaks eavestrough in predictable ways:

Hail dents and dinged trough lines
Troughs pulling away from the fascia
Corner joints worked loose by freeze and thaw
Slope shifts that leave water pooling mid-run

We inspect the whole system before quoting, so the fix addresses the cause. Repair is a standalone service.

water leaking behind eavestrough
home in walden calgary with hardie board and 5 inch eavestrough

Eavestrough Replacement

Removal of existing eavestrough and installation of new eaves. Old eaves are properly disposed of.

Aging sectional or vinyl systems
Joint failure along the whole run
Fascia damage hiding behind the trough

Seamless aluminum resets the clock for 20+ years. And because Big 5 is a complete exterior contractor, if the roof, siding, soffit, or fascia need work too, we quote that in the same visit.

5″ and 6″ Eavestrough

5-inch or 6-inch eavestrough: which is best for your home?

Both are continuous aluminum and fabricated on-site. The right size depends on what your roof sheds into them, the size of your home, and other factors.

5" Eavestrough
Builders Grade
Water capacity
Standard capacity, right for most Calgary homes
Best for: standard asphalt-shingle homes
Looks: clean, low-profile line that disappears into your roofline
2× capacity
6" Eavestrough
Upgraded
Water capacity
Roughly double the capacity of 5"
Best for: tile, metal, wood shake, and rubber roofs; large or steep rooflines; homes with a history of overflow
Looks: many homeowners choose 6" for the beefier profile
Not sure which one? You don't have to be. Big 5 sizes the system from your actual roof drainage area at the on-site quote.
house in haysboro calgary with black 6" eavestrough and wood plank siding

Alu-Rex Leaf Guards

We don’t clean gutters. Why should you?

An Alu-Rex leaf guard system means your eaves rarely, if ever, need cleaning.

Leaves and debris stay out, water keeps moving, and the guard is rated to hold 250 lbs per linear foot, so ladders, ice, and Calgary hail don’t faze it. It’ll last as long as the building we install it on.

Add it to a new install or retrofit it onto healthy existing trough.

Gutters and downspouts get water where it needs to go

Gutters and downspouts are a critical part of your home’s defences against water. The trough catches it; the downspouts decide where it ends up.

1The trough catches it. Sized from your roof's actual drainage area, slope-checked on every length.
2The downspout moves it. Placed at the concentrations: valleys, corner runs, the low end of a long slope.
3The extension lands it past the backfill zone. We'll create a setup that works for your home.
Cross-section · how water leaves your home
Grade
Foundation
1
2
3
Backfill zone
Water exits past the backfill zone, where soil is loosest, instead of settling beside the basement wall.

Why you don’t want water pooling at the foundation

Foundation movement

The backfill zone is the loosest soil on your lot. Water pooling at the foundation will saturate the backfill zone and contribute to foundation movement and settling (in addition to cracks and other water damage).

A wet basement

Pooled snow melt doesn't evaporate very quickly during Calgary's cooler springs, especially when the ground is still frozen. Water will naturally run to the lowest point, including window wells.

Grading undone

Settling soil tips the grade toward the house, so every storm after that drains the wrong way. Downspouts help by directing water away from the backfill zone, walkways, and gardens.

What your eavestrough quote covers

Eavestrough performs best when it is expertly-measured to fit your installation site exactly. That’s why we visit your home to provide an on-site quote that is expertly-tailored to your needs.

Colour & material

Drainage

Roof size & slope

Ease of access

Eavestrough size

Corners

Seasonality

Snow & ice

What determines your eavestrough price

Every home is quoted on-site, and the quote reflects your house and installation requirements.

1
We measure your roofline
Linear footage, corners, and how many downspouts your drainage needs.
2
You pick the profile and finish
5" or 6", colour-matched to your home. 6" eaves are a meaningful increase in price over 5".
3
We factor the site and old eavestrough removal/disposal
Storeys and access, and whether we're removing an old system on the way out.
Your quote is fixed before work starts
No surprises when our cube van shows up.

40+

Years serving Calgary

About Big 5 Exteriors

A Multi Generation Family Business

We are a family-owned company specializing in eavestrough, roofing, vinyl siding, and James Hardie Board siding. For more than 40 years, we have been working hard on home exteriors all across Calgary, Airdrie, Okotoks, Chestermere, Cochrane, and rural properties surrounding Calgary!

We're proud to have earned our excellent reputation and we stand behind our work. More importantly, boom or bust, you can trust us to be there when you need us. 

Image: "Big" Al Perzylo (founder, left), Derek Perzylo (general manager, right).

A+ BBB Rated

A top rating from the Better Business Bureau, proving our reliability and quality service.

4.5 Stars on Google

Trusted by our customers! Our high Google rating reflects our professionalism and excellent service.

See our Google reviews.

Coverage

Serving Calgary and surrounding areas

We've been based out of our NE Calgary shop since 1984.

Our materials are sourced from local suppliers, and our continuous eaves are fabricated at your home.

Areas we cover

We serve Calgary and surrounding areas within a 1-hour drive. There is generally no travel fee unless you're extremely remote.

Nearby communities we serve

Airdrie

About 20 minutes north of our shop

Chestermere

One of us graduated high school here!

Okotoks

Just a quick trip down Macleod, right? 😉

Cochrane

The view is always worth the drive

Rural property outside these? Not sure if you're in range? Call and we'll tell you.

4.5★★★★★from 40+ Google reviews
★★★★★

We had a really great experience with Big 5 Exteriors - had our eavestroughs replaced. We communicated with Derek and he always got back to us quickly. Pricing was the most competitive out of all the quotes we got and the work done was done well! We would use them again in the future.

Alex Duszyhnski, July 2026
★★★★★

I've shared some before and after pics. My soffit & fascia was old, rotten and wasn't venting. I had received multiple quotes from multiple different companies and their pricing was very fair. They are also an established company who has been around for many years and had good reviews so it was an easy decision to choose Big 5. They tore down all the old eavestrough, wood soffit and wood fascia and replaced with all new. Turned out fantastic. They came when they said they were going to come and it was done in a few days. Big thumbs up to Big 5!

Anthony Gebauer, July 2025
★★★★★

Big 5 built our garage and did a top notch job. They're always there to answer questions and were fast. We also had them repair our shingles and siding after the 2024 hail storm. I would recommend them to anyone of my friends and family.

Harry Coote, June 2025

FAQS

Things Calgarians Need to Know About Eavestroughing

Your eavestrough plays an important role in keeping your home safe from water. These FAQs are some of the most important ones we get asked.

What do eavestroughs do?

Eavestroughs protect your home from rainwater by carrying it away from your home’s foundation. Proper water management is essential in preventing damage over time from rain, snow, and hail. Moving water away from the building preserves the lifespan of the building and its envelope.

What's the difference between seamless and sectional eavestrough?

Seamless eavestrough is fabricated on-site in one continuous length, with joints only at the corners, or for specialty sections (such as gables, rounded facades, etc.). 

Sectional systems come in preset lengths with a leak point at every connector, and Calgary’s freeze and thaw cycle finds them fast.

Our eavestrough machines require a cube van to be transported and shape the aluminum on-site in lengths as long as required.

What kind of eavestroughs does my home need?

Most eavestroughs in Calgary are either 5″ or 6″ wide. Roof types that need at least 6″ include tile, metal, wood shakes, and rubber, or on homes with large roofs.

5″ works for homes with regular asphalt laminate shingles, though many homeowners choose 6″ anyway because they carry nearly twice as much water and generally look better.

Do you install downspouts too?

Yes. Sizing, placement, and extensions are included in every install. 

Our aluminum downspouts are exactly colour-matched to the eavestrough, ensuring a seamless finish (see what we did there?).

Why are my gutters overflowing if they aren't clogged?

There are several reasons that eaves overflow: the eaves themselves are too-small for the roof type or size, they are improperly sloped, or an undersized or blocked downspout is preventing the free flow of water.

Do eavestroughs cause ice dams?

They’re a contributing factor when clogged or undersized, but attic heat loss is the primary driver. A clean, correctly sized system reduces how severe ice dams get, though.

How much does eavestrough installation cost in Calgary?

It depends on linear footage, the 5″ or 6″ profile, storeys and access, downspout count, and whether we’re removing an old system. We’ll provide a written quote based on our on-site measurements and assessment.

How long will my eavestrough installation take?

Our turnaround time for most homes is about 3 days from the time we give you your quote to the time we complete the job. We source materials locally and measure, cut, and install on-site, eliminating manufacturer delays.

Simpler projects, such as a wartime-era bungalow or a typical double-car detached garage, are often completed in just a few hours.

When should I replace my eavestroughs?

In Calgary, properly installed eavestroughs should last 15 to 25 years. The lifespan can vary depending on how they were installed and the health of the fascia boards.

How do eavestroughs get damaged, and how can I protect them?

Eavestrough in Calgary typically get damaged by hail impact, detaching from the home when overloaded with debris, warping from repeated freeze/thaw cycles, impacts with vehicles, inappropriate use, and bending in the wind. You can opt for Alu-Rex leaf guards, which catch debris and are rated to hold up to 250 lbs per linear foot.

But if your kids are hanging off troughs that were installed 10 years ago, don’t be surprised if they fall off the building! 

Should I install eavestroughs myself?

Look, we’re an exterior company that has been specializing in eavestrough since 1984. Of course we think you should hire a professional (us!) to install your eaves for you.

When professionals install your eaves, you get a continuous length custom-made for where it’s being installed. You also get a 5-year installation warranty, and a 50-year warranty on the aluminum material.

But if you’re handy and don’t mind donating a ton of your time, you can go DIY. DIY eavestroughs must be purchased in sections with pre-set lengths, leaving numerous seams and points of failure. They also don’t look as good or last as long.

How often should I clean my eavestroughs?

We recommend most homeowners clean their eavestroughs at least once a year, ideally in the fall. Note: we do not offer eavestrough cleaning services.

In communities with large established trees close to the home (lots of central communities fall into this mix), fallen leaves, tree sap, and rodent debris can accumulate more often. If you’re in a community with these trees, it’s best to check every three months.

Conversely, if you’re in a new community like Riverstone or Seton, you probably don’t have any canopy near your roof and are unlikely to have clog concerns.

Homeowners with Alu-Rex leaf guards installed will likely never need to clean their gutters at all.

Should you paint your eavestroughs?

You can, but you really shouldn’t. Eaves come in many colours and can be colour-matched to your application; we’ll help with colour selection. Paint is unlikely to adhere well to aluminum, and there’s a good chance you’ll accidentally wind up painting your fascia, soffit, and siding as well.

And when it inevitably starts flaking off, well, now you have TWO problems. 🙂