Perth’s Trusted Authority · Est. 1980 · Osborne Park
What We Do
From emergency lockouts to full strata security systems — one trusted Perth team.
Lock repairs, rekeying, smart locks and full home security assessments.
Master key systems, restricted access and end-to-end property management.
Car key cutting and programming for most makes and models. Quote by phone.
Locked out? Call us now. We’ll dispatch fast — 24 hours, 7 days.
Most locks can be rekeyed so old keys no longer work — no need to replace the entire lock, making it a more economical and secure solution.
Why Choose Diamond
Perth families and property managers have trusted us for 46 years. Here’s why.
46 years protecting Perth homes, families and properties with integrity.
Trade-qualified professionals you can trust in your home or building.
Well-equipped vans and prompt response when it matters most.
Family-owned. Real people who care about your outcome every time.
Structured systems for managers + practical solutions for homeowners.
Available when you need us — not just during business hours.
What Perth Says
★★★★★
5.0 Google Rating · 200+ Reviews★★★★★
Absolutely brilliant service. Called late on a Friday and they came out within an hour. Professional, fast, and reasonably priced. Will use Diamond every time.
Mosman Park
★★★★★
We use Diamond for all our strata properties. Reliable, communicate well with tenants, and the systems they set up are excellent. Highly recommended.
Property Manager, Subiaco
★★★★★
Michael and Sam run a first-class operation. Full security upgrade — the team was punctual, tidy, and explained everything clearly. Couldn’t ask for more.
Claremont
★★★★★
Lost all our keys and needed a full rekey before moving in. Diamond had it sorted the same morning — friendly, efficient, and great value. Wouldn’t go anywhere else.
Cottesloe
Every technician background checked
Licensed, certified professionals
Serving greater Perth since 1980
(08) 9344 1965
Public liability covered
200+ verified reviews
The People Behind Diamond
Co-Owner · Security Specialist
Sam has spent his career doing one thing: making sure Perth families and businesses feel genuinely secure. Not just locked up — secure. That means honest advice, the right solution for your property, and a team that shows up when they say they will.
Alongside co-owner Michael Wann, Sam leads a tight-knit team from the Osborne Park base, covering everything from emergency lockouts to full strata master key programmes.
“We’re always happy to have a conversation first. No obligation — just straight advice from people who know security.”
Service Areas
Based in Osborne Park — covering residential, strata and commercial clients across greater Perth.
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