serving calgary & area since 1984
Calgary’s original eavestrough & siding experts
Founded in 1984, you could say we’ve seen every community in Calgary from its rooftops! Today, we’re one of Calgary’s leading eavestrough, siding, soffit, and fascia installation companies.
Get an honest, no-nonsense on-site quote from an exterior company you can trust to be here after the next boom and bust cycle.
Hardie board + eavestrough install, Auburn Bay in 2021
40+
Years serving Calgary & area
A+
BBB rated since 1998
5-Year
Big 5 Install Warranty
4.5★
40+ Google reviews
Our Exterior Services
Exterior services for your entire building envelope

Eavestrough Installation & Repair
5" and 6" seamless aluminum eavestrough, downspouts, and repairs that keep water off your fascia and away from your foundation.
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James Hardie Board Siding
James Hardie fibre-cement siding that holds its colour through Calgary hail, chinooks, and -35 mornings.
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Vinyl Siding
Low-maintenance siding in the profiles and colours that suit Calgary's housing stock.
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Fascia & Soffit
Aluminum fascia and vented soffit that protect and ventilate your roofline.
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Alu-Rex Leaf Guard
Continuous gutter guards with a lifetime warranty, so you never climb the ladder to clean eaves again.
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Roofing
Asphalt shingle roof replacement and hail repair for Calgary homes.
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“Big” Al Perzylo (founder, left), Derek Perzylo (general manager, right).
1984
Founded in Calgary
A+
BBB rated since 1998
2nd
Generation running the company
Why Calgary keeps calling us back
You don’t last more than 40 years in business by being “good enough”!
I had no idea when dad took me out in the cube van for the first time when I was 12 years old that I’d eventually go on to run the company. My younger brother is our lead eaves installer, and my other younger brother built this website.
It doesn’t get more “family owned” than that!
Derek Perzylo · General Manager
Who are we?
Big 5 Exteriors Ltd. is a family-owned exterior contractor in Calgary, Alberta. Founded in 1984 by “Big” Al Perzylo and run today by the second generation of the family, we install eavestrough, siding, fascia and soffit, leaf guards, and roofing across Calgary and area.
More about Big 5
We install 5″ and 6″ seamless eavestrough, James Hardie fibre-cement siding, vinyl siding, fascia and soffit, Alu-Rex leaf guards, and asphalt shingle roofing for homes and light commercial buildings across Calgary, Airdrie, Cochrane, Okotoks, Chestermere, and the rural properties around them. Big 5 Exteriors is a James Hardie Alliance Preferred Contractor, as well as an authorized Alu-Rex Leaf Guard installer.
Family owned and operated since 1984
We’ve survived decades of booms and busts.
Itemized quotes, measured on-site
We measure your home in person and give you a written quote that lists what’s included.
Big 5-Year Install Warranty
Five years on our workmanship, on top of the manufacturer’s warranty on materials (25 years on most siding, lifetime on Alu-Rex leaf guards).
Real customer reviews
What Calgary homeowners say
4.5 ★★★★★
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!
After the storm
Hail damage on your roof, siding, or eavestrough? Start here.
Calgary’s hail seasons have kept us busy since 1984. If your home took a hit, get it assessed before you call your insurer, so you know what you’re claiming for.
We inspect roof, siding, soffit, fascia, and eavestrough and photograph what we find.
You get an itemized scope and estimate written for your adjuster.
We do the work once the claim is approved, on the schedule we agreed to.
What it costs
What things cost in Calgary today
Every home is different, so these are ranges from recent Calgary jobs, not quotes. Your on-site quote will be itemized and specific to your home.
Prices include removal and disposal of the old material.
5″ eavestrough installation
Average bungalow
Typical range
$1,000 to $2,500
Hardie board siding
Average two-storey
Typical range
$15,000 to $25,000
6″ eavestrough installation
Average two-storey
Typical range
$3,000to $5,000
Vinyl siding
Average two-storey
Typical range
$10,000to $18,000
Commercial exteriors
Eavestrough, siding, and roofing for commercial and multi-family buildings
Our team has done the eavestrough and siding on dozens of condos, multi-family buildings, and single-floor commercial buildings across Calgary.
We take on
- Detached garages and shops
- Quonsets and agricultural buildings
- Condo and townhouse buildings
- Small retail and mixed-use
We refer out
- Industrial facilities
- Large office buildings
- Flat commercial roofing
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.
FAQ
Questions Calgary homeowners ask before hiring us
What areas do you serve?
Big 5 Exteriors serves Calgary, Airdrie, Cochrane, Okotoks, Chestermere, and rural properties within about an hour of the city. If you’re on the edge of that, call (403) 291-3093 and we’ll tell you straight.
How are your quotes created?
Most quotes start with an on-site visit where we measure and assess the work in person, then send you a written, itemized quote. Small, straightforward repairs can sometimes be quoted over the phone. Quotes are free and carry no obligation.
How long will my project take?
A typical eavestrough installation takes about three days from quote to completion. Vinyl or Hardie board siding on an average home takes about a week. We source materials locally, so there are no manufacturer delays.
Do you offer a warranty?
Every Big 5 installation carries the Big 5 Install Warranty: five years on workmanship. Materials carry the manufacturer’s warranty on top of that, ranging from 25 years on siding to lifetime on Alu-Rex leaf guards.
Do you help with hail damage insurance claims?
Yes. We assess the damage, photograph it, and give you an itemized scope written for your adjuster.
Do you do commercial work?
Yes, for light commercial buildings: detached garages, shops, quonsets, condo and townhouse buildings, and small retail. We don’t take on industrial facilities or large office buildings.
Are your installers licensed and insured?
Yes. Our entire team carries the required licensing and commercial liability insurance, and we work to Alberta’s building codes and occupational safety laws.
Do you offer financing?
Yes. We work with a third-party lender to arrange one-, two-, or three-year terms. Ask when you request your quote.
What happens to the old material?
We remove and dispose of everything we take off your home. Metals and plastics are recycled wherever a recycler will take them.
Are you BBB rated?
Big 5 Exteriors has held an A+ rating with the Better Business Bureau since 1998.
Still have a question? Call (403) 291-3093.
The Big 5 blog
Practical advice for Calgary homes, from a company born here
What’s the Best Roof Shingles Brand in Canada?
Canadians have lots of options when it comes to roof shingles, so finding the best brand can be challenging. Let Big 5 Exteriors show you why we recommend BP Mystique or Malarkey shingles for most homes in the Calgary area.
How to Check Your Roof for Leaks: Your Pre-Storm Checklist
Calgary’s hail season can do real damage to a roof, and the warning signs are often visible weeks before a single drop gets through your ceiling. A quick inspection of your attic, eavestroughs, and key exterior checkpoints can catch problems before they become expensive. Here’s what to look for.
When Is the Best Time to Replace Your Roof in Calgary?
The timing of your roof replacement affects more than your schedule. Temperature determines how well shingles seal during installation, Calgary’s hail season can push contractor availability out by months, and a compromised roof heading into winter usually means a bigger job come spring. Knowing when to schedule your replacement can save you time and money in the long run.
Get a no-nonsense quote for your home
We measure on-site, put it in writing, and the price holds. Call or send us the details and we’ll get back to you within one business day.







