If you’ve walked past a tired-looking timber deck in Mosman lately — grey, silvered, maybe a little rough underfoot — you’re looking at exactly the kind of job our team loves. This week we’re on-site restoring a hardwood deck just off a beautiful Mosman home, and it’s a perfect example of why sanding and refinishing is one of the smartest investments a homeowner can make before summer entertaining season kicks off.
Why Timber Decks in Mosman Need Regular Sanding
Mosman’s harbourside position means decks here cop a tough combination: strong UV exposure, salt-laden air rolling in off the harbour, and plenty of shade from established trees that keeps moisture lingering longer than it should. Over a few years, even a well-built hardwood deck will grey out, develop surface splinters, and lose the natural oils that keep the timber protected. Sanding strips all of that back to reveal fresh, structurally sound timber underneath — it’s restoration, not replacement.
Our Sanding & Restoration Process
Every restoration job follows the same disciplined process, regardless of the timber species or deck size:
- Inspection & prep — we check for loose boards, popped fixings, and any rot or damage that needs addressing before sanding begins. Any structural issues are repaired first.
- Pressure cleaning — a controlled clean removes surface dirt, mould, and grime without damaging the timber fibres.
- Multi-stage sanding — using professional-grade equipment (like the Festool gear you can see in the photo above), we work through progressively finer grits to strip back greying and weathering and reveal clean, even timber.
- Dust removal & final inspection — every board is checked before finishing to make sure the surface is smooth and consistent.
- Oiling — a quality penetrating oil is applied to restore natural colour, protect against UV and moisture, and bring the timber back to life.
The result is a deck that looks — and performs — like new, at a fraction of the cost of a full rebuild.
Restoration vs. Replacement: The Mosman Reality
We get asked constantly whether it’s better to restore or replace an ageing deck. In most cases where the structural timber and joists are sound, restoration is the clear winner — both financially and environmentally. There’s no reason to tear out perfectly good hardwood just because the surface has weathered. Our standardised restoration rate across Sydney is $153/m², which typically comes in well under a third of the cost of a full deck rebuild.
Of course, if the joists or bearers have deteriorated beyond repair, we’ll always tell you honestly — we’re not going to sand a deck that needs structural work first. But for the vast majority of Mosman homes with hardwood decks under 15-20 years old, sanding and oiling brings dramatic results.
Why Choose 5 Star Decking for Your Mosman Deck Restoration
We’re a fully licensed and insured decking business (NSW Contractor Licence 395250C) with years of experience restoring timber decks across Sydney’s Lower North Shore and Eastern Suburbs. Mosman’s mix of established hardwood decks and harbourside weather conditions is exactly the kind of project we handle week in, week out — and we treat every restoration with the same care as a brand-new build.
If your Mosman deck is looking grey, tired, or rough underfoot, get in touch for an obligation-free assessment. In most cases we can tell you on the spot whether a sand and oil will bring it back to life, or if something more is needed.
Call 5 Star Decking today on 0433 334 415 to book your free deck assessment, or visit our contact page to get a quote.
