Calgary · Roof Replacement
Roof Replacement in Calgary
A complete roof replacement rebuilds the system protecting your home - from the deck and underlayment to the shingles, flashing, and ventilation.
WCB Covered
WCB #9259474
Local Calgary Crew
No storm chasers
Written Estimates
No-obligation quotes
Full-System Builds
Down to the deck
A complete roof replacement, built as a system
Core Armour Exteriors Inc. replaces residential asphalt shingle roofs across Calgary and the surrounding service area. We tear the existing roof down to the deck, inspect what is underneath, and rebuild the weatherproofing system rather than covering old problems with new shingles.
The right replacement starts with a free inspection and a written estimate that reflects the roof's actual size, pitch, condition, and material choice. For a localized problem, roof repair may be the better path - our free roof inspection helps establish the difference. If you are still planning and want the published budgeting context, see our Calgary roof replacement cost guide.
- Full tear-off to the deck
- Deck inspection and repair
- Ice-and-water and synthetic underlayment
- Flashing, ventilation, and cleanup
WCB Covered
WCB #9259474 · Zero liability to you
Is it time?
When replacement makes more sense than another repair
A free inspection can separate a localized problem from a roof system that is failing in several places.
Recurring leaks
Leaks that return after repeated repairs can point to broader roof-system deterioration.
Widespread shingle damage
Curling, cracking, bald patches, or storm damage across multiple roof areas may make replacement the clearer option.
Sagging or soft areas
Visible sagging or soft spots can indicate deck concerns that need assessment below the shingle layer.
Several systems at once
When shingles, flashing, underlayment, and ventilation all need attention, a complete rebuild may be more appropriate than piecemeal work.
A clear condition-based decision
The replacement decision should follow the roof's condition and the written estimate, not a generic age rule by itself.
Repair is still considered
Not every damaged roof needs replacement. We explain when a targeted <a href="/roof-repair-calgary/" class="font-semibold text-copper-700 underline underline-offset-2">roof repair</a> remains the sensible option.
How it works
From free inspection to finished roof
The replacement process starts with the roof's condition and ends with a complete system and a clean site.
- 1
Free roof inspection
We inspect the visible roof and relevant system details, then explain whether repair or replacement fits the condition.
- 2
Written estimate
We measure the roof and provide a written estimate that explains the replacement scope and selected system.
- 3
Tear-off and rebuild
The existing roof is removed to the deck, the deck is assessed, and the new weatherproofing system is installed.
- 4
Cleanup and warranty
We complete the roof, clean the site, and provide the 10-year workmanship warranty alongside applicable manufacturer warranties.
Class 3 and Class 4 shingle options
Core Armour installs asphalt shingles, including Class 3 and Class 4 impact-resistant options from IKO and Malarkey. IKO Nordic, Malarkey Vista, and Malarkey Legacy are among the impact-resistant products in use.
The right selection depends on the roof, the project decision, and the system that fits the home. After hail or storm damage, our hail restoration service can help assess the repair-or-replacement path.
Built for Calgary weather
A replacement roof in Calgary has to handle summer hail, prairie wind, and freeze-thaw conditions. The system includes the underlayment, flashing, drip edge, and balanced ventilation details that help protect the home through those conditions.
Roof-integrated details matter too: a replacement may be the right time to coordinate a skylight installation or repair, while attic ventilation diagnosis addresses the roof-space conditions that support a healthy system.
Scope and planning
What drives replacement scope and cost
No two roofs cost the same. The estimate reflects the roof that is actually in front of us.
Size and pitch
Roof area, slope, layout, and access affect the amount of material and work involved.
Layers and tear-off
The number of existing layers and what is found during removal affect the replacement scope.
Deck condition
Rotted, delaminated, or water-damaged sheathing may need to be replaced after the roof is opened.
Shingle system
Asphalt shingles include Class 3 and Class 4 impact-resistant options from IKO and Malarkey.
Flashing and ventilation
Chimney, wall, valley, drip-edge, and ventilation details are part of the roof system, not add-ons to ignore.
Weather, season, and access
Weather and season affect timing, while roof access and site conditions affect how the work is planned.
Why homeowners choose us
Coverage and a clear replacement plan
Core Armour is WCB covered and carries $2,000,000 in commercial general liability insurance. The replacement plan is explained before work begins, with no price figure published here because the estimate depends on the roof's actual scope.
Core Armour provides a 10-year workmanship warranty, and manufacturer warranties apply to installed products. The company serves Calgary, Airdrie, Cochrane, Chestermere, Okotoks, Strathmore, High River, Bragg Creek, Diamond Valley, Langdon, Irricana, Crossfield, Carstairs, Didsbury, Olds, Three Hills, Cayley and Nanton.
10-year workmanship warranty
Workmanship is covered for 10 years; manufacturer warranties apply to installed products.
WCB covered
WCB #9259474 and $2,000,000 in commercial general liability insurance.
Free inspections and estimates
The process starts with an inspection and a written estimate for the roof's actual condition.
Typical one-day replacement
Many replacements are completed in one day, depending on roof size, pitch, weather, and season.
Free & no obligation
Get your roof replacement quote
Talk to a local Calgary roofer today. We'll assess your roof, give you a straight answer, and put a written, itemized estimate in your hands - with no pressure and no obligation.
Selected projects
Recent roofing projects
See examples of the roofing work behind this service.
Roof ReplacementRoof replacement during a renovation in Spruce Cliff
A renovation-era replacement exposed an existing 1×6 plank roof deck and led to a plywood/OSB resheathing recommendation.
View case study
Roof RepairLeak-related roof replacement in Strathcona
A living-room leak led to a full replacement with flashing, plywood, vent and exhaust-pipe work.
View case study
Hail Damage Roof RestorationHail-damage roof replacement in Sage Hill
A full roofing-system replacement after owner-reported significant hail impact, using IKO Nordic Class 4 impact-resistant shingles.
View case studyExplore more
Related roofing services
Core Armour handles every part of keeping a Calgary roof watertight.
Roof Repair
Leaks, storm damage, flashing failures, and emergency fixes - we find the real source and fix it right.
Explore Roof Repair
Hail Restoration
Hail-damage roof restoration with repair or replacement options and impact-resistant upgrades.
Explore Hail Restoration
Low-Slope Roofing
Low-slope roofing systems using approved shingle, SBS, and torch-on options where the roof and slope suit them.
Explore Low-Slope Roofing
Roof Inspection
Free, checklist-based assessments for storm damage, home sales, maintenance, and leak diagnosis.
Explore Roof Inspection
Skylights
Watertight skylights installed, replaced, and repaired by roofers who get the flashing detail right.
Explore Skylights
Attic Services
Ventilation, attic-rain, and ice-dam diagnosis for Calgary roofs and attics.
Explore Attic Services
Let's protect your home
Get a free, no-obligation estimate
Tell us what your roof needs. We'll inspect it, explain what we find in plain language, and give you a written estimate you can trust - anywhere in Calgary.