Roofing Built to
Weather the North
Metal roofing, replacement, repairs, and emergency service for Thunder Bay and Northwestern Ontario. Built for heavy snow load, ice dams, and Lake Superior weather. Licensed, insured, free estimates.
- Licensed & Fully Insured
- Free No-Obligation Estimates
- 24/7 Emergency Repairs
Get Your Free Estimate
We Solve Real Roofing Problems
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Leaking roof keeping you up at night?
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Worried about hidden costs or getting overcharged?
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Not sure if you need a repair or a full replacement?
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Same-day emergency response. We stop the damage fast.
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Free itemized written estimate. No surprises, no pressure.
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Honest inspectors give you a straight answer, no upselling.
Roofing Solutions for Every Need
From minor repairs to complete roof replacements, we deliver expert roofing solutions built to last.
Roof Replacement
Complete roof replacement built for Thunder Bay snow load, ice dams, and Lake Superior weather.
Roof Replacement Services
Metal Roofing
Standing seam and steel metal roofing that sheds snow and beats the wind. The Northern long-term answer.
Metal Roofing Services
Roof Repair
Fast, reliable repairs for ice-dam leaks, wind-lifted shingles, failed flashing, and storm damage.
Roof Repair Services
Emergency Roof Repair
Emergency roof repair and tarping for snow-load failures, storm damage, and active winter leaks.
Emergency Roof Repair Services
Shingle Roofing
Cold-climate asphalt shingle installation and repair, with ice-and-water membrane and proper ventilation.
Shingle Roofing Services
Flat Roofing
Flat and low-slope roofing for homes and commercial buildings, built for snow load and meltwater drainage.
Flat Roofing Services
Roof Inspection
Thorough roof inspections with honest written reports for buyers, sellers, and homeowners planning ahead.
Roof Inspection Services
Eavestrough & Gutters
Eavestrough installation, repair, and gutter guards sized for heavy Northwestern Ontario snowmelt.
Eavestrough & Gutters Services
Soffit & Fascia
Soffit and fascia repair and replacement that protects the roofline and keeps attic ventilation working.
Soffit & Fascia Services
Skylight Installation
Skylight installation, replacement, and leak repair sealed for snow load and freeze-thaw.
Skylight Installation ServicesHow It Works
Free Consultation & Inspection
Give us a call or fill out our online form. We will come to your property, inspect your roof thoroughly, and discuss your options, all at no cost and no obligation.
Detailed Written Estimate
You will receive a clear, itemized quote that covers materials, labour, timeline, and warranty details. No hidden fees, no surprises, just honest pricing.
Expert Installation
Our experienced crew handles your project from start to finish with quality materials and clean, professional workmanship. We keep you updated every step of the way.
Final Walkthrough & Warranty
Once the job is done, we walk through everything with you to make sure you are completely satisfied. You get a written warranty so your investment is protected for years to come.
Why Thunder Bay Homeowners Choose Us
We combine local expertise, premium materials, and honest service to deliver roofing you can count on.
Built for the North
We know what Lake Superior winters do to a roof. Snow load, ice dams, and freeze-thaw shape how we build every roof in Thunder Bay.
Quality Materials
We use only premium roofing products from trusted manufacturers, backed by industry-leading warranties.
Transparent Pricing
No hidden fees, no surprises. You get a detailed written quote before any work begins, and that price is what you pay.
Fully Insured
Complete liability and workers' compensation insurance protects your property and gives you peace of mind.
Emergency Response
Roof emergencies do not wait, and neither do we. Our 24/7 emergency team is ready for storm damage and active leaks.
Clean Job Sites
We leave your property spotless. Every nail, every shingle, every piece of debris is cleaned up before we leave.
Transparent Roofing Pricing
Every project is unique. These ranges give you a ballpark. Your free estimate will be detailed and exact.
Roof Replacement
Full tear-off and new installation
Roof Replacement DetailsFlexible Financing Available
0% interest for qualified homeowners. Apply during your free consultation.
Roofing Material Comparison
Choose the right material for your home and budget.
| Asphalt Shingles | Recommended Metal Roofing | Flat Roofing | |
|---|---|---|---|
| Lifespan | 20-30 years | 40-70 years | 15-25 years |
| Cost Range | $8,000 - $15,000 | $12,000 - $25,000 | $5,000 - $12,000 |
| Best For | Most residential homes | Long-term investment | Commercial & low-slope |
| Durability Rating | 7/10 | 9/10 | 6/10 |
| Maintenance | Low | Very Low | Moderate |
| Energy Efficiency | Moderate | Excellent | Good |
Asphalt Shingles
- Lifespan
- 20-30 years
- Cost Range
- $8,000 - $15,000
- Best For
- Most residential homes
- Durability Rating
- 7/10
- Maintenance
- Low
- Energy Efficiency
- Moderate
Metal Roofing
- Lifespan
- 40-70 years
- Cost Range
- $12,000 - $25,000
- Best For
- Long-term investment
- Durability Rating
- 9/10
- Maintenance
- Very Low
- Energy Efficiency
- Excellent
Flat Roofing
- Lifespan
- 15-25 years
- Cost Range
- $5,000 - $12,000
- Best For
- Commercial & low-slope
- Durability Rating
- 6/10
- Maintenance
- Moderate
- Energy Efficiency
- Good
Serving Thunder Bay & Northwestern Ontario
From the Port Arthur and Fort William sides to the surrounding townships and the north shore, we provide roofing services across the region.
A Roofer Built for Northwestern Ontario
Focused on the North
We work in Thunder Bay and Northwestern Ontario, building roofs for the snow load, ice, and Lake Superior weather that define the region.
Honest, Local Service
Straight answers and quality workmanship, with no fabricated reviews or pressure. We would rather earn your trust than sell you a patch.
Senior & Veteran Discounts
We offer special pricing for seniors and veterans across Thunder Bay and the surrounding communities.
Roofing Tips & Insights
Practical advice and guides to help Thunder Bay homeowners protect their biggest investment.
Best Roofing Material for Thunder Bay Winters: Metal vs. Asphalt
Metal or asphalt for a Thunder Bay roof? Compare cost, lifespan, snow shedding, and wind resistance in our Lake Superior...
Read MoreIce Dams: What They Do to Your Roof and How to Prevent Them
Ice dams are the top winter roof problem in Thunder Bay. Learn what causes them, the damage they do, and how ventilation...
Read MoreSnow Load and Your Roof: When to Worry in Northwestern Ontario
Heavy snow load is a real risk for Thunder Bay and Northwestern Ontario roofs. Learn the warning signs of an overloaded ...
Read MoreFrequently Asked Questions
Answers to the most common questions Thunder Bay homeowners ask about roofing.
What is the best roofing material for Thunder Bay winters?
For most Thunder Bay homes the long-term answer is metal. A standing seam steel roof sheds heavy snow, stands up to Lake Superior wind, and lasts far longer than asphalt in our freeze-thaw climate. Cold-climate architectural shingles are a solid mid-budget choice when installed with ice-and-water membrane and proper attic ventilation. We help you choose what fits your roof and budget.
Do you offer free roof inspections?
Yes, we provide free visual roof inspections for homeowners across Thunder Bay and Northwestern Ontario. We assess the condition of your roof, check for ice-dam and snow-load wear, and give you an honest written recommendation.
How long does a roof replacement take?
Most residential roof replacements in Thunder Bay take 1 to 3 days, depending on the size of the home, the number of old layers to remove, and the weather. Our season is shorter than the south, so we work efficiently inside the windows we get.
Are you licensed and insured?
Yes. Sleeping Giant Roofing is fully licensed and insured, giving you peace of mind that your property and our crew are protected throughout every project.
What areas around Thunder Bay do you serve?
We serve all of Thunder Bay, both the Port Arthur and Fort William sides, including Westfort, Current River, and County Park, plus the surrounding townships of Oliver Paipoonge, Shuniah, and Neebing, the village of Kakabeka Falls, and out along the north shore to Nipigon and Red Rock.
Do you handle emergency roof repairs?
Yes, we offer emergency roof repair and tarping for snow-load failures, storm damage, fallen branches, and active winter leaks across Thunder Bay. Call us as soon as you have a problem and we will get a tarp on it to stop further damage.