Quick answer
The best Calgary roofing warranty has two parts in writing: at least 10 years on the installation from a local contractor, and a registered manufacturer warranty on the shingles. Here is how to compare the fine print before you sign.
Estimates by phone: (587) 804-9266 · Good Roofing · Calgary-owned since 2014 · 10-year workmanship warranty.
The best roofing warranty in Calgary is a written workmanship warranty of at least 10 years from a contractor who will still be in Calgary to honour it, paired with a manufacturer warranty that has been registered in your name. Good Roofing gives every Calgary roof up to 50-year material + 10-year workmanship warranty, and has backed 2,800+ roofs since 2014. The length printed on a quote matters less than three details: what counts as a defect, who pays for labour, and whether the company behind the promise has a Calgary address.
01 · Section
Quick answer — the 60-second version (citation-ready)
A Calgary roof carries two separate warranties. The workmanship warranty comes from the roofer and covers leaks and failures caused by how the roof was installed. The manufacturer warranty comes from the shingle maker and covers defects in the product. Hail, fallen trees and fire are insurance events, and no roofing warranty pays for them. When comparing quotes, look for 10+ years of workmanship in writing, a clear list of what is covered and excluded, labour included in any manufacturer claim, a transferable term if you might sell, and proof that the contractor registers the manufacturer warranty for you. Good Roofing offers 10 years on workmanship, transferable once to the next owner at no charge, on top of up to 50 years of material coverage from manufacturers including IKO, Owens Corning, GAF and Malarkey Roofing Products.
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The warranties on a Calgary roof, and who stands behind each one
Most homeowners hear one number at the kitchen table, such as “50-year warranty”, and assume it covers everything. In practice the protection on a new roof splits three ways, and each layer has a different backer.
- 01Workmanship warranty (from the roofer). Covers leaks at flashings, valleys, vents and ridge cap, underlayment and flashing failures caused by the install, and shingles blowing off below their rated wind speed. It is only as strong as the contractor’s contract wording and staying power. Good Roofing’s runs 10 years and is written into every signed contract.
- 02Standard manufacturer warranty (from the shingle maker). Covers manufacturing defects in the shingles. Coverage is often prorated after an early period, which means the manufacturer pays a shrinking share of the material cost as the roof ages, and many standard terms do not include the labour to tear off and reinstall.
- 03Enhanced or system warranty (from the manufacturer, through a certified installer). Some manufacturers offer longer, broader coverage when a certified contractor installs a full system of their components: shingles, underlayment, starter, ridge cap and ventilation. These can add labour coverage. They usually require registration within a set window after the job, so ask who files it and ask for the confirmation.
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Seven questions that separate a strong warranty from a weak one
Read the warranty section of each quote side by side and ask the contractor to answer these in writing. A roofer who offers a strong warranty can answer all seven without hesitation.
- 01How many years of workmanship, and is the term on the signed contract? A verbal promise or a line on a brochure is hard to enforce.
- 02What exactly counts as a workmanship defect? Look for a list naming leaks, flashing, vents, valleys and wind blow-off below the rated speed.
- 03What is excluded? Expect hail, fallen trees, fire, your own modifications such as a satellite dish, and normal wear past the shingle’s expected life. Be wary of exclusions so broad that nothing is left.
- 04Is the manufacturer coverage prorated, and does it include labour? Material-only coverage leaves you paying the crew to remove and reinstall.
- 05Who registers the manufacturer warranty, and when? Ask for the registration confirmation in your name after the job.
- 06Does it transfer if I sell, and is there a fee? A transferable roof warranty is a selling point when buyers ask about the roof. Good Roofing’s transfers once to the next owner, free.
- 07Where is your office, and how long have you roofed in Calgary? Good Roofing has been Calgary-based since 2014 at Suite 200, 1010 1 St SW, Calgary, AB T2R 1K4, holds Alberta Master Roofer License #AB-RM-48201, and carries $5M commercial general liability + WCB covered.
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Hail, Chinooks and what Calgary warranties exclude
Calgary sits in one of Canada’s most active hail belts, so the most common roof damage here falls outside every roofing warranty. When hail bruises shingles or dents vents, the claim goes to your home insurance, and the warranty question becomes whether the replacement roof is installed and registered correctly. This is why Good Roofing installs Class 4 impact-rated shingles by default: they are built to resist hail, which reduces how often you need to file a claim at all. Wind is different. Chinook gusts that tear shingles off below the product’s rated wind speed point to an installation or sealing problem, and that is a workmanship claim. Ice damming is the third Calgary pattern: freeze-thaw cycles push meltwater under shingles at the eaves, and manufacturers can deny claims when attic ventilation does not meet their requirements. A roofer who checks your attic ventilation as part of the quote is protecting your warranty along with your roof. Good Roofing has recovered $14M+ in hail claims for Calgary homeowners with insurers including Intact Insurance / belairdirect, Aviva Canada and Wawanesa Mutual.
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“Lifetime” warranties: read the definition first
Lifetime is the most attractive word in a roofing ad and the one most worth reading closely. On manufacturer warranties, lifetime is often defined as the time the original owner lives in the home, with prorated coverage after the early years and a reduced term once the warranty transfers. On contractor workmanship warranties, a lifetime promise is worth only as long as the company exists, and out-of-province crews who arrive after a big storm can be gone before the first leak appears. We don't work with out-of-province storm chasers. Only vetted, year-round, locally-licensed Calgary crews. A 10-year written term from a contractor with a decade-plus Calgary record and a Calgary office gives you more real protection than a lifetime promise from a company you cannot find next spring. Our storm-chaser warning guide lists the other signs to watch for, and how to check a roofer’s past work shows how to verify a company’s track record.
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What voids a roofing warranty in Calgary
Most denied warranty claims trace back to choices made on installation day or changes made afterwards. Knowing the common causes lets you ask the right questions before the crew arrives.
- 01Roofing over old shingles. Many manufacturers limit coverage on overlays. We don't roof over existing shingles. Every job is a full tear-off down to the deck.
- 02Mixed-brand components on a roof sold with an enhanced system warranty.
- 03Ventilation that misses the manufacturer’s requirements, which can cook shingles from below in summer and feed ice dams in winter.
- 04Missed registration. An unregistered enhanced warranty can fall back to the standard term.
- 05Later penetrations such as satellite dishes, solar mounts or new vents added by someone else without proper flashing.
- 06Unrecorded repairs by another company, which make it hard to prove which installation failed.