HIA award-winning Gold Coast builder
Renovation builders for the Gold Coast home you don’t want to leave.
Twenty years of renovations, extensions and new builds from the northern Gold Coast to the Northern Rivers. One builder, one number, one person accountable from the first walk-through to the day you get the keys back.
Why people call us
Renovating shouldn’t feel like a gamble.
Most people who ring us have already been through a round of quotes that didn’t agree with each other. Here’s how we make the whole thing feel different.
The problem
Three quotes, three different stories.
One builder says the wall can come out. One says it can’t. The third won’t put a number on paper at all. Meanwhile you’re living in a house that stopped fitting the family years ago, and nobody has explained what’s actually holding the roof up.
What we do about it
We price what’s really there — then we hold it.
Jason walks the house with you and brings the engineer and certifier in before the number is locked. Structural renovation is our trade, not a sideline, so we’re not guessing at what’s load-bearing. You get a fixed-price contract with a schedule attached and provisional sums named out loud.
How it ends up
Sunday morning, doors stacked open, everyone in one room.
That’s what the end of a JT job actually looks like: a house that finally works the way your family does, finished when we said, and a conversation about moving that quietly stopped happening.
What we build
Renovations, extensions and everything in between.
Whole-home renovations are the core of what we do. If it involves taking a Gold Coast house apart and putting it back together better, it’s on this list.
Home Renovations
Whole-home renovations that fix the layout, not just the finishes.
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Extensions & Second Storeys
More room without moving suburb — ground-floor and second-storey additions.
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Kitchen Renovations
Kitchens that work for how your household actually cooks and gathers.
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Bathroom Renovations
Waterproofed properly, tiled beautifully, finished on time.
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Decks, Patios & Carports
Outdoor living that survives the salt air and gets used year-round.
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Garage Conversions
Turn the garage into the room your home is missing.
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The award
Judged the best renovation on the Gold Coast & Northern Rivers.
In 2017 the Housing Industry Association named Sunhaven the winner of Renovation / Addition Project $300,000–$600,000 for the Gold Coast & Northern Rivers region — and placed it second for Project of the Year.
It was a dark, closed-in coastal house with good bones and a bad floor plan. We opened the rear, rebuilt the roofline, added a pool terrace and a batten-screened carport, and put the light back into rooms that hadn’t had any since the seventies.
- Structural rework across two levels
- New kitchen, ensuite and family bathroom
- Pool, deck and screened outdoor living
- Delivered on programme and on budget
How a JT job runs
Six steps. No surprises in the middle of them.
The part most people dread is not knowing what happens next. So here it is, in order.
We come and look at it
A no-obligation site visit at a time that suits you — usually within a week. Jason walks the house, listens to what isn’t working, and tells you on the spot what’s possible and roughly what it costs. If your idea doesn’t stack up, you’ll hear that too.
Design and drawings
We bring in the architects, draftspeople and engineers we’ve worked with for years, or work alongside yours. Plans get tested against your budget before anyone falls in love with them.
Engineering, certification and approvals
Structural engineering, soil testing, private certification and council paperwork — handled and tracked by us, so you’re not chasing three different offices.
A fixed price and a real schedule
One contract, one price, a start date and a finish date. Provisional sums are named and explained rather than buried.
On site, with one number to call
Jason runs the job. Same trades, job after job, most of them people we’ve used for a decade. You get a weekly update and a site that gets swept at the end of the day.
Handover — and after
We walk the finished house with you, fix the snag list, hand over warranties and manuals, and pick up the phone when you call twelve months later.
Recent work
Four houses that changed completely.
Every photo on this site is a JT Master Builders job. No stock imagery, no other builder’s work.
Sunhaven, Kingscliff
A tired coastal cottage reworked into a light-filled family home — and the project that won the HIA Renovation/Addition award for the Gold Coast & Northern Rivers.
View project
Drysdale, Isle of Sorrento
A canal-front home rebuilt around the water — pool terrace, jetty access and a kitchen that runs the length of the view.
View project
Firestone, Gold Coast hinterland
A large acreage home built end to end: void stair, butler's pantry, dark stone bathrooms and a pool terrace for the whole extended family.
View project
Albion Ave, Miami
From beach shack to luxury — a Miami original taken back to its bones and rebuilt for coastal living.
View projectWatch
See a renovation actually happen.
Walk-throughs of completed Gold Coast renovations, filmed on site.
What clients say
Twenty years of people who’d have us back.
Jase's attention to detail has delivered a result that is beyond our expectations, whilst on time and within budget. We have no hesitation in recommending JT Master Builders.
It was great to see the detail and care taken to provide us with the quality finish we expected, while completing the work within the tight timeframe.
Jason made me feel like anything was possible, and he was willing to help me find ways to keep within my budget.
“Jase's attention to detail has delivered a result that is beyond our expectations, whilst on time and within budget. We have no hesitation in recommending JT Master Builders.”Lisa & Wade HeggieRenovation & extension
Where we build
Northern Gold Coast down to the Northern Rivers.
We’re licensed in Queensland and New South Wales, which means we can build straight through the border instead of stopping at it.
Coastal houses have their own problems — salt, slab movement, older additions that were never engineered, and councils with a firm view on what you can do to a beachfront block. We’ve been solving those specific problems on these specific streets for two decades.
Questions
The things everyone asks first.
How much does a home renovation cost on the Gold Coast?
Most of the whole-home renovations and extensions we build on the Coast land between $250,000 and $700,000, and kitchens and bathrooms sit well below that. The honest answer is that the number depends on what’s behind your walls, how much structural work is involved and the level of finish you’re after. We break the ranges down properly on our Gold Coast renovation cost guide.
Do you give fixed-price quotes?
Yes. We do the investigation work first — engineer, certifier, soil test where it’s needed — so the contract price is based on what’s actually there rather than an optimistic guess. Anything that genuinely can’t be known until we open a wall is listed as a provisional sum up front, so you can see it coming.
How long does a Gold Coast renovation take?
A bathroom is usually three to four weeks on site. A kitchen, four to six. A full renovation or extension typically runs four to nine months from first site meeting to handover, and roughly a third of that is design, engineering and council or private certification before a single tool comes out.
Are you licensed and insured?
Yes — QBCC licence 1190157 in Queensland and licence 256797C in New South Wales, so we can build both sides of the border. We’re members of the Master Builders Association and the Housing Industry Association, and every job carries the required home warranty insurance.
Which areas of the Gold Coast do you work in?
From the northern Gold Coast down through Burleigh, Palm Beach and Currumbin, across the border into Tweed Heads and the Northern Rivers. See the full list of areas we build in.
Can you help before we’ve got plans drawn?
That’s usually the best time to call. We’ll walk the house with you, tell you what’s realistic and what it’s likely to cost, and bring in an architect, draftsperson or engineer from the people we already work with. It saves paying to draw something that was never going to be buildable to your budget.
Start here
Let’s talk about your place.
Tell us what’s not working about the house you’re in. We’ll come out, walk it with you, and tell you honestly what’s possible and what it’s likely to cost.