Custom woodwork and creative exterior solutions, built for the coast
Breakwater Exteriors is a Powell River exterior construction company founded and run by Marc Thornton, a Journeyman Red Seal Carpenter. We take on the siding, decks, fences and one-off builds that demand real carpentry — and we do them right for our west coast climate.
Marc Thornton, Red Seal Carpenter
A Journeyman Red Seal is the highest trade certification in Canada — earned, not bought.
Marc has built his reputation on the details most people never see: properly flashed siding, square framing, and finishes chosen to survive coastal rain and salt. Breakwater Exteriors grew out of a simple idea — that homeowners on the Sunshine Coast deserve a tradesperson who treats every exterior like it's their own.
From full re-sides to a single set of stairs, every project gets the same standard of work and the same straight answers.
A standard you can see in the finished work
- Red Seal craftsmanshipEvery job is run by a certified Journeyman carpenter — not handed off to a crew working without one.
- Built for our climateMaterials and methods chosen for coastal rain, salt air and sun, so the work lasts where it actually has to.
- Honest, custom-mindedTricky sites and one-off ideas are welcome. We'll tell you plainly what's possible and what it takes.
- Guaranteed & coveredA written labour guarantee, full insurance and WorkSafeBC coverage on every project.
Powell River & Qathet Regional District
Based in Powell River and working up and down the coast — including the islands and the remote sites that are harder to reach.
See our full service area →- ◆Powell River
- ◆Lund
- ◆Saltery Bay
- ◆Savary Island
- ◆Texada Island
- ◆Remote & coastal sites
Let's talk about what you're building
Siding, a new deck, a fence, or something custom — we'll give you an honest assessment and a free quote.