Premium builders across Sydney and the Southern Highlands

Grand Oak Building delivers high-end renovations, additions and extensions, selected new builds, refurbishments and fit-outs, and specialist remedial building work across the Southern Highlands and Sydney’s Inner West, west, south-west and southern areas. Our family-owned team brings more than 30 years of combined industry experience, including ARDEX-accredited waterproofing and repair capability.

Premium residential building and renovation work

From considered upgrades to substantial transformations, our high-end residential renovations and home additions and extensions are planned around how you want the property to function, feel and perform.

Planning building work in Sydney or the Southern Highlands?

Tell us what you are planning or what needs to be repaired. We can discuss the scope, the property and the next steps for your project.

Our range of services

High-end renovations and new builds

Home additions and extensions

Kitchen and bathroom renovations

Refurbishments and fit-outs

Remedial building repairs

Water ingress and waterproofing

Project gallery

Olwyn Mckee

I am writing to let you know how grateful and happy we are with the studio you built for us. Every day i thank my lucky stars that you came our way. I hope you and your family are in good health. Our very best wishes to you.

David Ginges

I found GRANDOAK BUILDING online and naturally was apprehensive given what I hear about bad builder. but boy did i get a pleasant surprise. they did a beautiful job for us but what impressed me the most was the level of communication and through out the entire process. I highly recommend them and praise them for the quality of work they did for us.

Kris Mikaere

We have now engaged GRANDOAK BUILDING on two occasions for works on our child minding facility. Everything they did has exceeded our expectations and all the parents and staff are very happy with the results We would not use any other builder on our future projects.

Olwyn Mckee

I am writing to let you know how grateful and happy we are with the studio you built for us. Every day i thank my lucky stars that you came our way. I hope you and your family are in good health. Our very best wishes to you.

David Ginges

I found GRANDOAK BUILDING online and naturally was apprehensive given what I hear about bad builder. but boy did i get a pleasant surprise. they did a beautiful job for us but what impressed me the most was the level of communication and through out the entire process. I highly recommend them and praise them for the quality of work they did for us.

Contact us

Talk to Grand Oak Building

Contact our team about new builds, renovations, extensions, remedial repairs, waterproofing or refurbishment work across our Sydney and Southern Highlands service areas.

Building across Sydney and the Southern Highlands

Our key Southern Highlands service areas include Bowral, Mittagong, Moss Vale and Robertson. In Sydney, we focus on Inner West Sydney, Western Sydney, the Sutherland Shire and Campbelltown, with surrounding areas considered where the project is a suitable fit.