SERVING CALGARY & AREA SINCE 1984
Calgary Roof Replacement, Repair & Installation
Get a roof that holds up to Calgary’s hail and wind. Go beyond builder-grade shingles with architectural and impact-resistant options, backed by our Big 5-Year Install Warranty.
Hail-Resistant Options
Impact-rated shingles available.
Get Help for Hail Claims
Damage photographed and documented for your insurer.
Includes the Whole Roofline
Eavestrough, soffit, and fascia, all in the same quote.
5-Year Warranty
+ limited lifetime shingle warranty
5,000+ ROOFS INSTALLED
Architectural shingles installed by pros who know Calgary weather.
Calgary’s hail, wind, and freeze-thaw cycles take years off a roof. We’ve spent 40+ years working on roofs in every community in Calgary, so we know how to take care of yours and provide the service you deserve.
BP Mystique and Malarkey shingles
The two architectural shingle brands we recommend for most Calgary roofs. High-quality and long-lasting.
Quoted and measured on site
We assess every roof in person and measure all materials on site to make sure we’re always delivering solutions that work.
Efficient work on a timeline that works for you
Our team can re-roof most homes in about three working days. Bigger and steeper roofs may take longer. We’ll give you a timeline before starting so you know what to expect.
Protected by two warranties
A limited lifetime manufacturer’s warranty on the shingles and our Big 5-Year Install Warranty on the workmanship.
RESIDENTIAL ROOFING SERVICES
Replacements, repairs, and new roofs
- Roof replacement
- Roof repair
- New roof installation
Roof replacement
If your roof is beyond repair, we’ll tear it off, replace damaged decking, and rebuild it with new underlayment, flashing, and shingles. We can also install new eavestroughs, soffit, and fascia during the job if needed.
- Full tear-off and disposal
- Damaged decking replaced before anything goes back on
- BP Mystique or Malarkey architectural shingles
- Hail-resistant shingle upgrade available
Roof repair
From hail and wind damage to leaks and lifted shingles, we find what’s wrong with your roof and fix the problem at the source. All new materials are matched as closely as possible to your existing roof, and you approve everything before it goes on.
- Hail and wind damage
- Leaks at vents, chimneys, skylights, and valleys
- Missing, cracked, or lifted shingles
- Flashing repairs
New roof installation
For new construction including detached garages, additions, pitched-roof condos, townhouses, and small commercial buildings. We use the same high-quality architectural shingles and detailed approach as we would for a full roof replacement.
- Detached garages and additions
- Pitched-roof multi-family and light commercial
- Eavestrough, soffit, and fascia in the same quote
ROOF REPLACEMENT
What comes off, and what goes on
Close-ups of a worn roof and a new one.
Comes off
Worn, lifted shingles. They no longer lie flat.
Goes on
New architectural shingles. BP Mystique or Malarkey, with a hail-resistant upgrade available.
Get a no-obligation quote from one of Calgary’s oldest exterior companies
We’ll come out, look at your roof, and give you a free quote.
HAIL DAMAGE
Hail damage on your roof? Let us look before you call insurance.
The August 2024 storm hit about one in five Calgary homes, but hail damage is hard to measure from the street. A professional assessment tells you what you’re dealing with, documents the damage, and helps you find the most cost-effective fix.
- Free on-site assessment. We check the roof, eavestrough, soffit, fascia, and siding, and photograph what we find.
- Documentation for your adjuster. A scope and estimate written for your claim.
- Repair or replace. We do the work once the claim is approved.
If your claim covers a new roof, ask us what it costs to upgrade to impact-resistant shingles.
REPAIR OR REPLACE?
Signs your roof needs repair or replacement
Most of these can be seen from the ground or in your eavestrough. Here’s what each usually means.
Missing or lifted shingles
A few gone or flapping after a windstorm.
Usually: a repair
A leak at a vent, chimney, or skylight
Ceiling stains indoors. Often caused by loose or damaged flashing.
Usually: a repair
Hail damage
Soft spots, dented vents, circles with missing granules or cracked shingles.
Usually: an insurance claim
Granules in the eavestrough
Sand-like grit in the eaves and dark bare patches on your shingles.
Usually: a replacement is getting close
Curling or cupping shingles
Edges lifting or the middle sagging as the shingles dry out.
Usually: a replacement
A roof over 20 years old
Architectural shingles last about 20 to 25 years in Calgary.
Usually: time to plan a replacement
Not sure what you’re looking at? Read our pre-storm roof checklist →
UNDER THE SHINGLES
What goes under the shingles on a Big 5 roof
The layers you don’t see do the most to keep water out. Here’s how we protect them from Calgary’s hail, wind, ice dams, and more.
- Ice and water protection. A self-sealing membrane at the eaves and valleys that prevents melted ice from backing up underneath.
- Underlayment. Another layer protecting the whole deck in case shingles are cracked by hail or blown away by windstorms.
- Flashing and drip edge. Sealing the metal at walls, chimneys, vents, and roof edges, where most leaks start.
- Ventilation. Intake vents at the soffit and exhaust vents at the roof keep attic heat from baking the shingles in summer and help prevent winter frost from forming.
- Architectural shingles
- Starter strip
- Underlayment
- Ice and water protection
- Decking
- Drip edge
- Eavestrough
- Fascia
- Soffit
Choosing shingles to protect your roof
BIG 5 STANDARD
Architectural shingles
HAIL RESISTANCE
Handles Calgary weather well. Can still be bruised or cracked by large hail.
HAIL-RATEDUPGRADED
Impact-resistant shingles
HAIL RESISTANCE
Polymer-modified asphalt flexes on impact instead of cracking.
Costs more than standard architectural shingles.
Not sure which one? We look at your location and claim history when we assess your roof, then tell you whether upgrading is a cost-effective option.
What your roofing quote covers
Two roofing quotes for the same house can be thousands of dollars apart. Our itemized estimates show you exactly what you’re paying for so you can budget for the work with no surprises.
Tear-off & disposal
Old shingles removed and placed in a bin on site, then hauled away.
Decking
Fixing rotten decking found after tear-off to support new shingles.
Ice & water protection
Installing membranes at the eaves and valleys.
Underlayment
Placed over the full deck for extra protection if shingles fail.
Flashing & drip edge
Resealed at walls, chimneys, vents, skylights, and edges.
Ventilation
Intake and exhaust vents checked and replaced where needed.
Shingles
Architectural or impact-resistant, matched to your existing roof for repairs.
Timeline & cleanup
Start date, working days, and site cleanup before we leave.
Ask about 1, 2, or 3-year financing through our third-party lender.
Need new eavestrough, soffit, or fascia too? We can include your entire roofline in the same quote, broken down line by line.
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 in the surrounding communities!
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.
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 on-site at your property to ensure the right fit.
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
Live on a rural property outside these areas? Not sure if you’re in range? Call and we’ll tell you.
5 stars
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
5 stars
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
5 stars
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
FAQS
Roofing questions, answered
Calgary is hard on roofs. Here’s what people ask at the quote, answered the way we’d answer it on your driveway.
Something we didn’t answer? Ask us →
How much does a new roof cost in Calgary?
It depends on the roof’s size and pitch, how many layers need to come off, the type of shingles you choose, and what we find on the deck. Get an assessment from our team and an on-site quote to price out the specific work your roof needs.
How long does a roof last in Calgary?
About 20 to 25 years with architectural shingles and 15 to 20 with standard three-tab. That’s shorter than national averages because of Calgary’s hail, wind, and high-altitude sun. How long a roof lasts in Calgary →
What shingles do you install?
Architectural asphalt shingles from BP Mystique and Malarkey. They’re laminated in two layers on a fibreglass mat, so they’re thicker and rated for higher winds than the flat three-tab shingles on many older Calgary homes.
Are impact-resistant shingles worth it in Calgary?
If your roof has already taken hail or your house sits exposed, impact-resistant shingles are usually a smart investment, even though they cost more up front. It’s also worth asking your insurer whether they discount premiums for impact-rated roofs.
Will insurance cover a hail-damaged roof?
Often, if the damage came from hail or wind and your policy covers it. Get the roof assessed before you call your insurer so you can provide specifics. We photograph the damage and write a scope for your adjuster. Our guide to home exterior insurance claims walks through the rest.
Should I repair or replace my roof?
Repair it if the damage is in one area and the rest of the roof still has life left. Consider replacing it if the shingles are curling, granule loss is happening across the roof, or it’s over about 20 years old. We’ll tell you what we recommend at your assessment.
How long does a roof replacement take?
Most Calgary re-roofs take about three working days. Bigger or steeper roofs typically take longer, and the start date may sometimes need to move due to weather.
When is the best time to replace a roof in Calgary?
Late May to early October. Shingles need about 10°C and some sun to seal properly, and late spring gets you ahead of hail season. Winter installations are possible during a warm spell, with each shingle hand-sealed. Best time to replace a roof →
What warranty comes with a new roof?
Two. Our Big 5-Year Install Warranty covers the workmanship. The shingle manufacturer’s limited lifetime warranty covers the shingles against defects in materials and manufacturing.
Do you install eavestrough, soffit, and fascia with a new roof?
Yes. We quote the roof, eavestrough, soffit, and fascia together, so you can have one company take care of your whole roofline.
Do you do flat roofs or commercial roofing?
We do roofing for pitched roofs on homes, garages, and light commercial buildings such as condos and townhouses. We refer out flat commercial roofing.
Do you offer financing?
Yes. We work with a third-party lender on 1, 2, or 3-year terms. Ask us about your options when you request your quote.
Get a no-obligation quote for your roofing project
Get a free, no-nonsense quote via email or give us a call. We’d love to earn your business.