Newcastle's Home Extension Experts

Stunning home extensions Newcastle locals can trust

We’ve been helping Newcastle locals turn their current home into their dream home for almost 30 years. With decades of experience and a highly-trained team of in-house experts, we’re the ideal choice for your Newcastle home renovation. You can expect total transparency, upfront costs and a streamlined design and build process with everything from quotes and design to construction and approvals handled right here by us.

Forget waiting around for quotes to come back from half a dozen contractors, with Cubitt’s you can have the entire extension processed covered and get an accurate upfront estimate on cost and time.

With the strength and stability of a large company paired with the down to earth friendly service of a family run business, at Cubitt’s we’ll take care of you and ensure your home extension provides the lifestyle you want at a price you can afford.


Where we build in Newcastle

We can provide house extensions anywhere in Newcastle, Lake Macquarie and the Hunter. Our local home extension experts can come to you for a site inspection and planning session to help you get the most out of your Newcastle home.


Trusted in-house designers and builders


All DA and council approvals


28+ years of experience


Full-service home extensions


Dedicated design consultants


Proudly Australian, owned and operated

Your Dream Home Is Closer Than You Think


Completed Projects

Live where you love with large scale home renovations in Newcastle

Love where you live but need some room to grow? We can help. With more than 300 home extensions under our belt, we can make sure your Newcastle home renovation provides the space and facilities you need to stay living where you love.


Avoid the stressful moving process
Between house hunting, price negotiations, paperwork and packing up your home, moving home can be a huge hassle. By upgrading your home with a custom extension you can avoid the stress of uprooting your life and moving homes.


Stay connected to your community
Putting down roots and making connections takes time. By renovating your home you can stay connected to your community, close to friends, schools, doctors and other services.


Invest your future
A home extension can enhance your lifestyle now and add value to your home when it comes time to sell.


Upgrade your lifestyle
Whether you’re adding additional rooms, an alfresco entertaining space or an extra storey to your house, a home extension will enhance your lifestyle and help you maximise your space.


Live where your memories were made
Families grow and your needs change, and it can be a heart wrenching decision to leave behind the home where your precious memories were made. Stay in your family home with a custom extension.


Enhance your home’s value
An extension won’t just improve your lifestyle, but also the value of your home. Improve your financial situation while keeping your mortgage affordable.


Beautiful, functional, stress-free extensions with experienced Newcastle renovation builders

One of the most time consuming and stressful aspects of organising a house extension in Newcastle is sourcing designers, builders and other contractors and waiting for quotes to come back. Fortunately, we can take on that workload for you. At Cubitt’s, we have a dedicated in-house team of designers, builders and specialists who can provide detailed quotes within a matter of days, rather than a matter of weeks, so your renovation project can get underway sooner.

Hear What Cubitt’s Customers Have to Say…

"Cubitt’s are the most supportive and professional contractors I have ever employed. From their on-site supervisor to all others who worked on site, everyone was co-operative, nothing seemed to be too much trouble, and any alterations we wanted were carried out quickly and well. The job was completed 2 months before the contract date, and we are very happy with the end result. We would happily recommend Cubitt’s to anyone considering this option!"

-  Doug and Robyn Midgley


Frequently Asked Questions


Talk to us about your
Home Extension today!

Interested in finding out how to make a positive investment from a Cubitt's Home Extension? Get in touch for a no-obligation site inspection today.

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Home Extensions Form

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Visit Our Newcastle
Display Centre


Cubitt's Display Centre

124-126 Maitland Road,
Mayfield NSW 2304

Opening Hours:
Tuesday-Saturday: 9am-4pm

Where We Build