Home Extension

Expert Home Extension Builders Brisbane & Gold Coast

There are several reasons you might consider a house extension. Perhaps you’ve outgrown your home but you love the part of Brisbane that you live in. Maybe you’d like to add a home office or extend the living room. Whatever the reason, our extensions will add value to your property and add a new spark to your living space. We’re experts in home extensions Brisbane, focusing our attention on the minor details that other home builders may overlook. We work closely with you and offer an end-to-end service incorporating everything you need for a great result.

We understand you may be unfamiliar with the building process. To ensure you understand each phase of the construction process, we’ll provide you with an information pack which includes what we call ‘The Journey.’ This details our construction process from the initial concept through to post-project completion.

Our Project Management and Customer Care systems are also designed to keep the extensions process simple and keep you informed of the steps we’ll take together to improve your home.

The highest quality house extensions

Designing and building great home extensions is our passion. We love great design and will never underestimate the need to meet deadlines, but the overall quality is what matters most to us. Our commitment to achieving a quality extension for our clients is unmatched within the industry, and this is always evident when the final inspection is conducted with the family.

It is our job to provide you with the best possible home extension that we can, that’s why we employ experienced and skilled industry professionals from the design stage, right through to the completion of construction. Our reputation has taken time to build, so it is important that we protect it by providing you with the best quality extension possible.


Our House Extension Process

Exterior Extensions Brisbane

You’re not just limited to extensions within existing home. Where property size and zoning allow – you may also consider adding some outdoor extensions to your property. Give yourself that outdoor space you’ve always been dreaming of, making full use of your property both indoors and out.

Outdoor extensions can include:

The Crossan Building Service approach

Crossan Building Service is a Brisbane-based extension and renovation builder. We are specialists in the field, offering clients a seamless design-to-construction experience. With one company handling all the minute details of home extensions and renovations from start to finish, we can guarantee quality outcomes. By working collaboratively with our in-house team, you can be confident that your project will come to life the way you envision it, without any unexpected surprises. Our strategy blends practicality with creativity. Designs and floor plans emerge only after extensive consultation with our clients so that all of us are ‘on the same page’ before construction starts. You’ll receive the benefit of a final fixed project price and ongoing support throughout the build.


Contact us to talk about your extension or renovation project. We’d love to hear from you.