Serving London · St. Thomas · Woodstock · Stratford · Tillsonburg · Ingersoll · Simcoe · Brantford
Every project tells a story. Here's what our work looks like up close.
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Don't just take our word for it. Here's what your neighbours have to say.
"Professional from start to finish."
The crew arrived on time, cleaned up every day, and the new roof looks incredible. Tyler walked me through every step. I wouldn't hesitate to recommend Optima to anyone.
"Fixed a leak no one else could find."
I'd had three other companies look at the same leak and they all missed it. Optima found it within an hour and fixed it the same day. Outstanding attention to detail.
"Completed in one day, no mess left behind."
We were amazed — the whole roof was replaced in under 8 hours. The team was courteous, quick, and left the yard cleaner than they found it. Fantastic experience.
Pre-book now and save. Roof replacements, repairs, and gutter installs all included. Expires end of season.
Claim My DiscountMost roofers rush the job to move on to the next one. We do the opposite. Every project starts with a thorough inspection, proper flashing, and full deck prep before a single shingle goes down.
From century homes with original cedar shakes in Old South to new builds in subdivisions across Middlesex County — flat roofs, steep-slopes, dormers, valleys — if it's overhead, we've done it. We use Owens Corning and CertainTeed products because they're engineered to handle Ontario's brutal freeze-thaw cycles.
Residential and light commercial. Any size. The standard never changes.
Full tear-off and replacement using premium architectural shingles. Completed in as little as one day.
Emergency and non-emergency leak diagnosis and repair. We find the source — not just patch the symptom.
Seamless aluminum gutter installation, cleaning, and downspout re-routing to protect your foundation.
Optima Roofing & Construction was founded in London, Ontario with one simple idea: homeowners deserve a roofing company that shows up when it says it will, does what it promises, and stands behind its work.
We're a family-run crew — not a franchise, not a call centre. When you call us, you speak to the people who'll be on your roof. We've been protecting homes across Southwestern Ontario for over 15 years, and every job we take gets the same level of care.
Our 25-year workmanship warranty backs every replacement. We carry full WSIB coverage and $5M liability insurance so you're protected from day one.
Most residential roof replacements in Southwestern Ontario range from $8,000 to $20,000+ depending on the size, pitch, materials, and number of layers being removed. We provide free, no-obligation quotes with a full line-item breakdown — no hidden fees.
Most standard residential roofs are completed in a single day. Larger homes or complex roof lines (multiple dormers, steep pitches, skylights) may take two days. We'll give you a realistic timeline before we start — and we stick to it.
No — most homeowners go about their day. We'll confirm access requirements beforehand, take before-and-after photos, and walk you through the finished work when you're back. All we need is access to the exterior and a safe distance from the work area for pets and children.
We back every full replacement with a 25-year workmanship warranty in addition to the manufacturer's product warranty (Owens Corning and CertainTeed both offer lifetime shingle warranties on qualifying products). All repairs carry a 2-year warranty.
Absolutely. We have experience working directly with all major Canadian insurance carriers. We can help document storm or hail damage, prepare the scope of work, and communicate with your adjuster to make the claims process as smooth as possible.
We serve London and the surrounding region including St. Thomas, Woodstock, Stratford, Tillsonburg, Ingersoll, Simcoe, Brantford, and most communities within a 90-minute radius. Not sure if we cover your area? Give us a call and we'll let you know.
Fill out the form and we'll be in touch within one business day to schedule your free, no-pressure inspection and quote.