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.
Residential Eavestrough Services
Eavestrough installation, repair, and replacement
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.
Eavestrough Repair
Calgary breaks eavestrough in predictable ways:
We inspect the whole system before quoting, so the fix addresses the cause. Repair is a standalone service.
Eavestrough Replacement
Removal of existing eavestrough and installation of new eaves. Old eaves are properly disposed of.
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.
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.
Why you don’t want water pooling at the foundation
Foundation movement
A wet basement
Grading undone
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.
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.
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.
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.
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!
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. 🙂
