Oakville · Mississauga · Burlington · Milton · Toronto
Built to Protect.
Built to Last.
Roofing, chimney and attic insulation specialists based in Oakville, serving homeowners across the western GTA. Free inspections, honest assessments, and 24/7 emergency roof repair when water is coming in tonight.
BBB A- Accredited
20+ Years Experience
Free Inspections
24/7 Emergency Service
Real jobs, real homes
Drag the handle. See the difference.
Every one of these started with a free inspection and a written quote. Slide across to compare the before and after on four recent jobs.
Stripped to the deck.Rebuilt properly.
Roof replacement
Small repair.Big difference.
Roof repair
Keep debris out.Protect what matters.
Gutter guards
Cleared out.Covered for good.
Eavestroughs
What we do
Roof to attic, one crew.
Shingle Roofing
Asphalt shingle systems installed properly — underlayment, ice-and-water shield, ventilation and all.
Roof Repairs
Leaks, storm damage, failed flashing and lifted shingles. Fixed fast, without a sales pitch for a new roof.
Gutter Installation
Seamless eavestroughs, downspouts and gutter guards sized to actually carry an Ontario downpour.
Chimney Work
Rebuilds, repointing and aluminium capping to stop water getting in where the brick meets the roof.
Attic Insulation
Top-ups, full upgrades and spray foam that cut heat loss and help keep ice dams off the eaves.
Free Inspections
A proper look at the whole roof with photos, before anyone talks about money. Always free.
The Calthorpe approach
You'll get a straight answer.
Even when it costs us the job.
Joe has spent more than twenty years on Ontario roofs. He's seen what a rushed install looks like five winters later, and he's seen plenty of homeowners talked into full replacements when three hours of flashing work would have done it.
So Calthorpe does it the other way round. Every job starts with a proper inspection — roof surface, flashing, valleys, eavestroughs and the attic underneath. Then you get a written quote for the work that's actually needed, explained in plain English.
If your roof has five good years left in it, we'll tell you that and book you in for a repair instead.
20+
Years of hands-on experience
24/7
Emergency roof repair
$0
Cost for inspections & quotes
GTA
Oakville to Toronto, wide
Why homeowners choose Calthorpe
Four things we don't compromise on.
Quality Workmanship
The same standard on every job, whether it's a four-shingle repair or a full tear-off. Details like flashing, valleys and ventilation are where roofs fail — so that's where we spend the time.
Honest Pricing
You get a written quote with the work itemised before anything starts. No surprise line items, no pressure, and no charging you for work your roof doesn't need.
Fast Turnaround
Most residential roofs are done in a day or two. We show up when we say we will, and we don't disappear mid-job to start someone else's.
Customer Satisfaction
The site gets cleaned, the nails get magnet-swept, and Joe walks the job with you at the end so you can see exactly what was done.
How it works
Three steps. No surprises.
- 01
Free Inspection
Joe walks the roof, checks the attic, and photographs anything that matters. You see what he sees.
- 02
Clear Written Quote
An itemised price with the scope spelled out. If a repair will do, we quote the repair — not a replacement.
- 03
Job Done Right
Crew shows up on schedule, works clean, magnet-sweeps the property, and walks the finished job with you.
What homeowners say
5-star rated on Google.
Calthorpe is 5-star rated on Google, BBB accredited with an A- rating, and listed on HomeStars. Review quotes are pulled directly from those profiles — nothing here is written for us.
Review text pending import from the Google Business Profile — real customer wording only, no copy written on the client's behalf.
Google review · Oakville
Review text pending import from the Google Business Profile — real customer wording only, no copy written on the client's behalf.
Google review · Oakville
Review text pending import from the Google Business Profile — real customer wording only, no copy written on the client's behalf.
Google review · Oakville
Where we work
Across the western GTA.
Based at 1294 Dempster Lane in Oakville, with crews out daily across Halton and Peel. If you're not sure whether you're in range, call — Joe will tell you straight.
Oakville
Mississauga
Burlington
Milton
Toronto
Surrounding GTA
Free inspection · Free quotation
Get a straight answer about your roof.
No pressure. No upsell.
Book a free inspection and Joe will walk the roof, photograph what he finds, and give you a written quote for the work that actually needs doing.