Questions to ask before roof work starts

Most roof problems start small. A missed detail during the initial inspection becomes a hidden leak. A contractor who glosses over the scope becomes a project that spirals into unexpected costs. The difference between a straightforward repair and months of frustration often comes down to how thoroughly you ask questions before the work begins—and how carefully you listen to the answers.

Skip this step, and you risk hiring someone who hasn't thought through the job, hasn't checked what's actually broken, or has reasons to rush. The right questions force clarity on both sides: they show you whether the roofer has done the diagnostic work, whether they understand your specific roof, and whether they're willing to be transparent about what they'll do and why.

What exactly have you found, and how did you find it?

A roofer who gives vague answers here—"it looks like a leak somewhere up there" or "the flashing is probably shot"—is guessing. A good answer includes specifics: which side of the roof, what type of damage, where water is likely entering, and how they identified it. They should describe whether they actually went into the roof space to trace the leak, inspected from inside the house, or climbed up to check the exterior. If they haven't done this diagnostic work yet, they shouldn't be quoting a repair price; they're putting off the hardest part. Ask them to walk you through what they saw or suggest a site visit where they'll do a proper inspection before giving a quote.

Why this matters: misdiagnosis is the biggest reason repairs fail or get repeated. A roofer who's willing to spend time on diagnosis is protecting both of you.

How will you access the roof and keep the rest of my house safe?

A dismissive answer—"we'll just use a ladder" or "no problem there"—suggests they haven't thought about fall protection, safety equipment, or how they'll prevent damage to gutters, plants, cars or paving while they work. A roofer who's taken the time to assess your site will mention specifics: the type of scaffolding or ladder system they'll use, whether they need to lift materials by crane, how they'll protect guttering and downpipes, and what weather will stop the work. They might ask where they'll position vehicles or whether you need temporary tarpaulins. This isn't paranoia; it's professionalism.

Why this matters: an unsafe site kills timeline and credibility. You also want to know what's insured and what's your liability.

What's included in your quote, and what could change?

Listen for honesty about unknowns. A good answer sounds like: "The quote covers [specific materials and labour]. Once we start, if we find rot under the flashing or the roof deck is worse than the inspection showed, I'll stop, take photos, and call you before proceeding. We'll agree on price for any extra work." An evasive answer avoids contingencies: "We'll fix the roof, end of story." Or it's so vague you can't tell what you're paying for. Ask them to itemise: materials, labour, rubbish removal, sealing, any scaffolding or safety gear hire. Ask what happens if they uncover hidden damage and what the process is for approving add-ons. A roofer who's done this before knows surprises happen and has a system for handling them.

Why this matters: unspecified quotes turn into unexpected invoices. Clarity here prevents arguments.

Once the work is done, what's guaranteed and how do we handle problems?

A vague answer—"it should be fine" or "I stand by my work"—is not a guarantee. A solid answer names specifics: the warranty period (usually 1–5 years depending on materials and repair type), what's covered (e.g., materials and labour, but not storm damage), and the process if something fails (call them, they inspect, they fix at no cost if it's their fault). They should also explain what maintenance you'll need to do and how often inspections help catch problems early. Ask whether they'll provide a written warranty document and a contact number for follow-up issues. If they're hesitant to put this in writing, that's a red flag.

Why this matters: a guarantee in writing protects you if the repair fails. It also shows the roofer is confident in their work.

Once you have clear, detailed answers to these four areas, you have a much stronger sense of whether this roofer is thorough, honest and reliable. When you're ready to move forward, verifying that they're licenced, insured and reviewed by previous customers on Strove will complete the picture.