Roofing Companies in London Ontario: Essential Questions to Ask Before Hiring

Your roof is arguably the most critical component of your home’s exterior. It shields your family from our unpredictable Canadian weather, contributes to energy efficiency, and plays a massive role in your property’s curb appeal. When it comes time for a repair or a full replacement, the stakes are high. You need a partner you can trust. With so many roofing companies in London Ontario, narrowing down your options can feel overwhelming.

A quick search online reveals dozens of contractors, all claiming to be the best. How do you separate the true professionals from the “fly-by-night” operations? The secret lies in asking the right questions. A reputable roofer will welcome your scrutiny and provide clear, honest answers. They understand that an informed homeowner is their best customer.

This guide outlines the essential questions you must ask before signing any contract. By treating the hiring process like an interview, you can protect your investment and ensure your roofing project runs smoothly from start to finish.

Are You Licensed and Insured?

This should always be your very first question. It seems basic, but you might be surprised by how many operators skip these crucial steps to cut costs. In Ontario, legitimate businesses must have proper licensing to operate. Ask to see proof of their business license and ensure it is current.

Insurance is even more critical. There are two specific types of coverage you need to verify: general liability insurance and WSIB (Workplace Safety and Insurance Board) coverage. General liability protects your property. If a ladder falls and smashes your window, or if a roofer accidentally damages your neighbour’s car, this insurance covers the cost. Without it, you could be liable for the repairs.

WSIB coverage protects the workers. Roofing is inherently dangerous work. If a worker falls or gets injured on your property and the company does not have WSIB coverage, you could potentially be sued for their medical bills and lost wages. Never hire a company that cannot provide a valid WSIB clearance certificate.

Can You Provide Local References?

A company can tell you anything they want about their quality, but their past work speaks the loudest truth. When looking at roofing companies in London Ontario, ask for a list of recent references specifically in your area. Do not just settle for a curated list of “star clients” from five years ago. Ask for addresses of roofs they completed in the last six months.

If possible, drive by these homes to see the finished product yourself. Does the roof look uniform? Are the flashings neat? If you feel comfortable, you might even knock on the door and ask the homeowner about their experience. Did the crew show up on time? Did they clean up nails and debris afterwards? Were there any surprise costs? Hearing directly from a neighbour is often the most reliable way to gauge a company’s integrity.

What Warranties Do You Offer?

A new roof is a significant financial investment, and you need to know that it is protected. There are two distinct types of warranties you should ask about: the manufacturer’s warranty and the workmanship warranty.

The manufacturer’s warranty covers defects in the roofing materials themselves (e.g., the shingles). Most major brands offer substantial warranties, often ranging from 25 years to lifetime coverage. However, these warranties are often contingent on the roof being installed correctly. If the contractor cuts corners or ignores the manufacturer’s installation guidelines, that warranty could be voided.

The workmanship warranty is provided by the roofing company and covers their labour. If a shingle blows off next year because it was nailed incorrectly, or if a vent leaks because of poor flashing installation, this warranty covers the repair. Be wary of companies that offer very short workmanship warranties (e.g., one year). A confident, high-quality roofer stands behind their work for much longer, often five to ten years or more.

Who Will Be on the Job Site?

It is common in the construction industry for companies to use subcontractors. You might hire “ABC Roofing,” but a different crew shows up in an unmarked van to do the actual work. While subcontracting is not inherently bad, it can lead to communication breakdowns and inconsistent quality if not managed properly.

Ask the company who will be performing the installation. Are they actual employees of the company, or are they subcontractors? If they are subcontractors, are they covered by the company’s insurance? Who is the project manager or site supervisor responsible for quality control? You want to know that there is a dedicated person accountable for your project who you can speak to directly if issues arise.

How Do You Handle Unexpected Repairs?

Roofing projects are notorious for surprises. Once the old shingles are torn off, the crew might discover rotten decking (the wood sheeting underneath) or water damage that was not visible during the initial inspection. This is a common scenario, but how the company handles it makes all the difference.

Ask them upfront about their process for “change orders” or additional work. Will they stop work and notify you immediately? Do they have a set rate for replacing rotten plywood sheets? You want to avoid a situation where you come home to a finished roof and a bill that is thousands of dollars higher than the quote because of “unforeseen issues” that were never discussed. A professional roofer communicates these possibilities clearly and gets your approval before proceeding with extra costs.

What Is Your Clean-Up Process?

Roofing is a messy job. Thousands of nails, old shingles, and packaging debris will be generated during the tear-off process. If this waste is not managed properly, it can damage your landscaping or leave dangerous hazards for your family and pets.

Ask specific questions about their waste management. Do they bring their own dumpster or bin? Where will it be placed? Do they use tarps to protect your bushes, flower beds, and deck? Most importantly, do they use a magnetic sweeper to pick up stray nails from your lawn and driveway? A respectful contractor treats your property with care and leaves it as clean as they found it.

Will You provide a Written Estimate?

Verbal agreements are meaningless in construction. Never allow work to begin based on a handshake and a “ballpark figure.” You need a detailed, written estimate that breaks down exactly what you are paying for.

This document should include the start and completion dates, specific materials to be used (brand and colour of shingles, type of underlayment, etc.), the scope of work (stripping old roof, installing ice and water shield, replacing vents), and the total cost including taxes. It should also outline the payment schedule. Be wary of roofing companies in London Ontario that demand full cash payment upfront. A standard arrangement often involves a deposit to book the job and purchase materials, with the balance due upon completion and satisfaction.

Are You a Local Business?

Choosing a local company has distinct advantages. After a major storm, “storm chasers”—out-of-town companies that travel to disaster areas—often flood the market. They might offer cheap prices and quick turnaround times, but if your roof starts leaking six months later, they will be long gone and impossible to reach.

A local business has a reputation to uphold in the community. They have a physical office you can visit. They are invested in their neighbours and are more likely to be around to honour their warranties years down the road. The Government of Ontario provides excellent consumer advice on hiring a roofer, emphasizing the importance of checking the business’s history and reputation.

Trust Your Gut Feeling

Finally, pay attention to how the company treats you during the estimation process. Did they show up on time for the appointment? Did they take the time to inspect your roof thoroughly, or did they just glance at it from the driveway? Did they explain their recommendations clearly without using confusing jargon or high-pressure sales tactics?

Communication is a huge part of the service. If they are difficult to reach or dismissive of your questions before you have even hired them, it is unlikely to get better once they have your deposit. You want a partner who is responsive, professional, and respectful of your home.

At Shockwave Roofing, we believe in transparency and education. We encourage our clients to ask tough questions because we are confident in our answers. We are proud of our safety record, our workmanship, and our standing in the London community. Whether you need a small repair or a full residential roofing replacement, we are here to provide honest advice and superior service.

Don’t leave your home’s protection to chance. If you are ready to discuss your roofing needs with a team that puts quality first, reach out today. We would be happy to walk you through our process and provide a detailed, no-obligation quote.