ABOUT US
ABOUT JMAR BUILDING CO
WE BUILD HOMES PEOPLE NEVER WANT TO LEAVE
JMAR Building Co. is a Hawkesbury-based builder specialising in custom homes, knockdown rebuilds, and significant renovations. We work with homeowners who are ready to build something that really fits their block, their lifestyle and their future.
JMAR builds custom forever homes in the Hawkesbury, Penrith, Lower Blue Mountains and Hills areas.
BORN LOCAL, STAYED LOCAL.
Jayden started JMAR because he wanted to build properly – not to a formula, and not without being personally accountable to every client. He grew up in the Hawkesbury and has been building here ever since.
That local knowledge matters. He knows the blocks, the councils, the subcontractors worth calling, and the ones not to. When you build with JMAR, Jayden isn’t handing you off to a project manager you’ve never met. He’s the person who shows up.
The team is tight knit and held to a high standard – including the trusted network of subcontractors across every trade. It stays that way because quality control only works when you’re actually paying attention.
HOW WE WORK
WHAT YOU CAN EXPECT WHEN YOU BUILD WITH JMAR.
You'll always know what's happening
Clear communication isn’t a feature – it’s the baseline. You’ll know the schedule, the progress, and anything that changes before it becomes a problem.
The budget we agree on is real
We invest time upfront to specify properly, so provisional sums are minimised and the number you sign on isn’t a best guess. That’s why we have a pre-construction process.
The workmanship holds up
We build above the minimum standard, not just to meet a 7-year warranty period, but to create homes that stand strong for the next 50 years. By going beyond the building code and holding ourselves to a higher standard, we deliver better outcomes for our clients – because that’s the only way Jayden puts his name to a project.
WHAT OUR CLIENTS SAY
“Jayden was so impressive with his reliability, his ensuring I fully understood the work he would be doing and his reliability. He arrived to quote when he said he would, sent his quote when he said he would and carried out the work when he said he would. Totally trustworthy..
WHY WE CHARGE A PRE-CONSTRUCTION FEE, AND WHY IT PROTECTS YOU.
Volume builders offer free quotes. That sounds good until the variations start arriving. Our pre-construction process is a fixed, transparent fee that funds the proper planning work – so both of us know what we’re signing up for before a single slab is poured.
FIRST HOUR
Always free, no obligation
STAGE 1
$750 – Qualifying Budget Estimate (QBE). Qualifying your preliminary designs to ensure the home you’re wanting to build is the right budget and scope for you.
STAGE 2
Refining your design – accurate documentation and planning ensuring we’re all on the same page. Inclusions, exclusions, which items are provisional sums and what is a fixed price.
STAGE 3
Once the contract figure is agreed on, we move onto choosing all of your selections and the project fee proposal – everything clear to both parties from day 1.
LET'S TALK
WE’D LOVE TO HEAR ABOUT WHAT YOU’RE PLANNING
Tell us about your block, your ideas, what you’re hoping to build and what your dream home looks like – and we’ll have a conversation about what’s possible.