Mornington Peninsula · Since 2009
The Peninsula's most
trusted deck builder.
Custom timber decks and composite decking — built to last, across all Mornington Peninsula areas from Frankston to Portsea, Mornington to Flinders.
Who we are
We build decks that belong on the Peninsula.
If you've been dreaming about a deck that looks out over the bay, wraps around your home, or finally makes that sloping backyard usable — you're in the right place.
At Mornington Peninsula Decking Co, we've been helping Peninsula homeowners build better outdoor spaces for years. Whether it's a spotted gum deck off the back of your house in Blairgowrie, an entertainer's paradise in Mount Eliza, or a composite deck that can handle the salt air near Portsea — Dean and the team know exactly what works down here.
The Peninsula isn't like building in the suburbs. Coastal conditions, sandy soils, sloped blocks, bushfire zones and strict council regulations. We deal with this every single day.
What we build
Decks, composite & rooftop decks.
01
Custom Timber Decks
Hardwood and treated pine decks designed for your home, block and budget — built to last decades.
Learn more →
02
Composite Decking
Low maintenance, long lasting, genuinely good looking. Perfect for coastal homes and busy families.
Learn more →03
NexGEN Composite
Australia's premium composite board — fade resistant, slip resistant, up to 50-year warranty.
Learn more →Why us
Built by a Peninsula business, not a metro franchise.
We're local
We're a Peninsula business — not a franchise or a metro company sending crews down the highway.
Dean is hands-on
Our founder Dean is involved in every project. You'll deal with him directly — not a salesperson or subcontractor.
We know the land
Sloped blocks, coastal salt air, sandy soils, bushfire overlays. We've seen it all and we know how to build for it.
Licensed & fully insured
Registered Victorian builder. Full public liability and workers compensation.
Clean, honest quoting
A real price upfront. No nasty surprises, no hidden variations after the job starts.
We clean up
Every site is left tidy. We respect your home and your garden.
Service area
All Mornington Peninsula — and everywhere in between.
Not sure if we cover your area? Give Dean a call. Chances are we do.
Call 03 5910 4486- →Frankston & Frankston South
- →Mornington & Mount Martha
- →Mount Eliza & Langwarrin
- →Rosebud & Rye
- →Mornington & Blairgowrie
- →Dromana & Safety Beach
- →Red Hill & Main Ridge
- →Hastings & Somerville
- →Flinders & Balnarring
- →Portsea & coastal properties
What homeowners say
"Honestly the best decision we could have made."
Dean and his team built us a beautiful hardwood deck overlooking our garden. The attention to detail was incredible — three years on it still looks brand new.
We had a tough sloping block we'd been putting off for years. Dean came out, had a good look around, and gave us a plan that actually made sense. Finished on time.
Went with composite for our beach house. Best decision we could have made — two winters in and it looks exactly the same as install day. Genuine local mob.
How much does it cost to build a deck on the Mornington Peninsula?+
There are a myriad of options and variables to consider when constructing a deck, all of which can affect the overall cost. Generally speaking, deck building costs range from $300/m² to $550/m², depending on factors such as materials, design complexity, site conditions, and finishing requirements.
Do I need a building permit?+
Building permits may be required for your project. We assess all requirements, advise you accordingly, and take care of the permit application and paperwork as part of our service.
What's the best timber for coastal areas like Portsea or Sorrento?+
We have found that high-quality engineered composite decking consistently outperforms natural timber in durability throughout the Peninsula. Our clients appreciate the low-maintenance benefits of composite decking, as it eliminates the need for regular sanding, staining, or oiling — saving them time and money.
How long will my deck last?+
A high-quality composite deck installed on a premium aluminium frame can be backed by industry-leading warranties of up to 50 years, providing exceptional durability, performance, and long-term peace of mind.
How long does the build take?+
Most residential decks (20–40m²) take 7–10 working days on site. Permits and material lead times add 4–8 weeks up front. We'll give you a realistic timeline from day one.
Can you build on a sloping block?+
Absolutely — we do a lot of this on the Peninsula. Mount Eliza, Mount Martha, Arthurs Seat, Main Ridge, Red Hill and parts of Mornington are all sloping country. An elevated deck on a slope is often the best feature of the property.
Can you build rooftop decks?+
We have extensive experience in the design and construction of rooftop decks. These projects typically require engineering assessments and a building permit to ensure the existing structure can safely support the additional load. Depending on the property's location and project scope, a planning permit may also be required, along with Report and Consent from neighbouring properties. We assess all project requirements and provide expert guidance throughout the approval and construction process.
Ready when you are
Let's build something you'll
actually use.
Free measure and quote.