How to Choose a Roofer in Thunder Bay: 10 Questions to Ask Before Signing

Picking the wrong roofer in Thunder Bay is an expensive mistake. A bad install does not always leak the first winter. It can hold up through one mild season, then unravel the first time it sits under three feet of wet, settling snow with a thaw on top. By the time you notice, the cash is gone and the crew is unreachable. This guide gives you ten questions to ask before you sign, so the roof you pay for is the roof you actually get.

Most of these are simple. The point is not to trip up a good roofer. A good one will answer every one of them without a pause. The point is to filter out the ones who hope you do not ask.

Why Hiring Matters Up Here

A Thunder Bay roof has to carry snow load for months, take Lake Superior wind on exposed lots, and survive freeze-thaw cycles that pry at every seam. The install quality matters more than the brand of shingle on the truck. A premium shingle put on by a crew that skipped ice-and-water membrane and got the ventilation wrong will fail faster than a mid-grade shingle put on right. So the questions below focus on what the roofer actually does, not what is on the box.

The 10 Questions

1. Are You Licensed and Insured? Can I See Both Documents?

Ask for a business license and proof of two kinds of insurance: general liability and WSIB coverage for every worker on your roof. Liability protects your property if something gets damaged. WSIB protects you if a worker is hurt on your job. Without it you can be held responsible. A real contractor sends a current certificate of insurance without making a fuss. If they hedge, walk.

2. Will You Provide a Written, Itemized Quote?

Not a number scribbled on a clipboard. A real quote spells out tear-off, ice-and-water membrane, underlayment, the exact shingle or metal product, flashing, ventilation work, cleanup, and disposal. If two quotes are far apart in price, the cheaper one is usually leaving something off. Compare what is included, not just the bottom line. Our new roof cost guide walks through what should be on a complete quote.

3. What Manufacturer Warranty Comes With This Roof?

Manufacturer warranties depend on the product and on whether your installer is certified by that manufacturer. A non-certified installer often means a lesser warranty, even on a premium shingle. Ask which warranty tier you qualify for and get it in writing on the quote.

4. What Workmanship Warranty Do You Offer?

This is separate from the manufacturer warranty and covers installation defects. Reputable Thunder Bay roofers offer a multi-year workmanship warranty in writing. Be careful with “lifetime” claims that lean on a company that has only been around a couple of years. Ask how long the company has been operating under its current name, and whether the warranty transfers if you sell the home.

5. Will the Quote Include Ice-and-Water Membrane at the Eaves and Valleys?

This is non-negotiable on a Thunder Bay roof. Ice-and-water membrane is the self-adhering layer that seals around fasteners and blocks meltwater from getting under the shingles when an ice dam forms. A quote without it is not a Northern Ontario roof. Ask how far up the eave the membrane runs and whether valleys are fully covered. For more on why this matters, see our ice dam prevention guide.

6. What Is Your Ventilation Plan for My Attic?

Most chronic ice dam problems are a ventilation failure, not a roofing failure. A real roofer will look at your soffit intake and ridge exhaust and tell you whether the balance is right. If they say “we will add a couple more vents” without checking soffits or measuring attic area, they are guessing. Ask them to describe the ventilation system they will leave behind, in plain English.

7. What Is the Payment Schedule?

A common scam pattern is a big up-front deposit followed by the company disappearing. A fair payment schedule is a small deposit to secure the date, a progress payment when materials are delivered or work starts, and the bulk on completion. If they want most of the money before the first shingle goes on, that is a flag. Pay by cheque or e-transfer with a paper trail. Avoid cash.

8. Who Is Actually Doing the Work, and Will You Be On Site?

Some companies sell jobs and sub them out to a crew you have never met, with no supervision. Ask whether the roofer you are talking to has crews of their own or subs the work. Ask who runs the job on site and whether they will be there each day. There is nothing inherently wrong with subs if the contractor stands behind the work, but you should know who is on your roof.

9. How Will You Handle Cleanup, Disposal, and Property Protection?

A re-roof creates a lot of debris. A roofer worth hiring will put tarps over landscaping, use magnetic sweeps for nails when the job is done, dispose of all old roofing themselves, and leave the property cleaner than they found it. Ask how they protect siding, eavestrough, and AC units. Ask if there is a final walk-through.

10. What Will You Refuse to Do, and Why?

This is the one question that tells you the most. A good roofer refuses things. They refuse to roof over two existing layers of shingles. They refuse to skip ice-and-water membrane to hit a price. They refuse to install on a deck with rot they have not replaced. They refuse to roof in conditions that will compromise the install. If a contractor says yes to everything, especially every shortcut you suggest to save money, that is a problem. A real one will tell you no, and tell you why.

The Local Red Flags

A few patterns we see in Thunder Bay year after year:

• Storm chasers. After a hail or wind event, out-of-town crews appear with door-knocking sales pitches and discount pricing. Their warranties are worthless once they leave the region. If you have storm damage, work with a local contractor who will be here next year. Our storm damage guide covers what to do.
• Door-to-door “free inspection” pressure. A legitimate roofer does not need to push for a same-day signature. If you are being told the price is only good if you sign today, slow down.
• Cash-only and no contract. Common in scams. A real roofer issues a proper invoice, accepts traceable payment, and writes things down.
• No physical address you can drive to. If the company is a cell number and a magnetic truck sign, you are not going to find them in two years when the warranty matters.

Get a Second Quote, Always

Even if the first quote feels right, get a second. Compare on what is included, not the bottom number. A second opinion costs nothing and surfaces things the first roofer might have missed or padded. If you want a clear, written quote that answers all ten of the above, call Sleeping Giant Roofing at (807) 501-9192 or request a free estimate. We will do the inspection, lay out exactly what your roof needs, and put it on paper.