WELCOME TO JMAR BUILDING CO.
Built for Living, Designed for Life.
We don’t just build houses – We create the spaces where your life’s most cherished moments unfold.
Your Hawkesbury & Blue Mountains Builders
JMAR Building Co specialises in custom homes, duplexes, and architectural renovations across the Hawkesbury, Lower Blue Mountains, and surrounding areas.
With a skilled team of carpenters, we create high-quality spaces designed for the way you live. From concept to completion, we ensure a seamless, stress-free building experience—on time, on budget, and built to the highest standard. Contact us today, and let us help you create your dream home.
ABOUT JMAR BUILDING CO
We Build Spaces for Life’s Best Moments
At JMAR Building Co, we build more than homes — we build trust. Partnering with you, we specialise in custom homes, duplexes, and architectural renovations, bringing experience, craftsmanship, and a hands-on approach to every project. Our team is committed to quality work and a smooth, stress-free building journey. Let’s bring your vision to life.
Custom New Homes
Architectural Renovations
Outdoor Living
OUR PROJECTS
Transform Your Home with JMAR Building Co
Looking to extend or fully renovate your home? JMAR Building’s expert team delivers seamless transformations to bring your vision to life.
Ian Street
More space, more light, more living. A reimagined home where every detail enhances comfort, function, and the connection between indoors and out.
Horans Lane
Luxury meets livability. A complete transformation with open, connected spaces, premium finishes, and a design that feels effortless yet refined.
Centennial Homestead
A redefined venue experience. Expansive dining, an elevated bar, and a sun-drenched deck—crafted for seamless hospitality and unforgettable moments.
OUR TESTIMONIALS
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..
Rosina S - Gymea RenovationRead More...★★★★★
"From a rough idea, Jayden was able to produce an excellent result and exactly as I had envisioned. Jayden and his team worked diligently to complete my verandah addition. The end result exceeded expectations. Jayden is meticulous in his workmanship & very easy to work with…”
Greg R - Home AdditionRead More...★★★★★
“Jayden came and did some work for me. His attention to detail and explanation of process and products was impeccable. Jayden's communication was fantastic and he is extremely reliable. Thank you Jayden for turning our house into our dream home.”
Bec C - Home RenovationRead More...CONTACT US
Let’s Chat About Your Next Project!
info@jmarbuilding.com.au
PHONE
LOCATION
Sydney, Hawkesbury, and the Lower Blue Mountains.