Garage conversion

House Extensions

Add value to your home or optimise the space you have available. Whether it’s adding a garage or an extra level of bedroom space, our team can help.

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Home Extension & Addition Specialists

Your life may have changed since you purchased your property. Your family has grown, you started working from home, or maybe you’ve been hosting some long-stay guests so your home feels a bit more cramped than it used to. Extending your house provides a solution to your space issues without forcing you to relocate; an extension also has the potential to increase your property’s value. 

Whether you’re looking for a granny flat extension, or you already have a house extension design in mind, Refresh is here to help. Our experienced team provides more than professional project management; we’re by your side every step of the way. From ideas and inspiration to coordinating qualified tradespeople, you can expect exceptional support throughout your entire renovation.

How does Refresh help?

Renovations are an opportunity to transform your home into a space that works better for you. Refresh was established to take this exciting time and make sure it’s also stress-free. To do so, a Renovation Consultant will guide you through every stage of our proven 5-step process, handling all aspects from start to finish. 

“Excellent customer service and professional advice and consultation throughout the project. Thank you Refresh!” — Jeff Berry, Refresh client



The house extension process requires a team of contractors and specialists. Our careful approach helps our Renovation Consultants keep everyone organised and on schedule. Streamlined channels of communication mitigate risk and keep expectations clear for a project delivery that doesn’t sacrifice quality or customer service. 

Tired of close quarters?

Let’s change that! Get in touch with your local Renovation Consultant and arrange a no-obligation consultation to start your house extension journey today. 

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A smoother house extension process

Using our proven 5-step process enables our Renovation Consultants to deliver fantastic house extension results, on time and within budget.

Step 1

Briefing / Initial Consultation

Discuss your house extension ideas with your Renovation Consultant during the initial consultation; define your goals, budget, and timeline for the project. Establishing these elements early in the process will help ensure that your renovation is delivered on time and within budget.

Step 2

Concept and Feasibility

Once everyone is on the same page and the project scope has been defined, your Renovation Consultant can arrange for concept designs to be drawn up. While the main goal is to determine the feasibility of your project, these 3D designs make it easy for you to see your house extension ideas come to life and present the perfect opportunity to make any changes.

Step 3

Working Drawings and Costing

Moving on to the final step of the planning stages, working drawings will be developed which focus on technical aspects such as architecture and structural considerations. Once building begins, making changes can incur extra expenses and delays so now is the ideal time to alter any of the plans. The house extension cost will be provided during this stage as well in the form of a fixed quote.

Step 4

Build / Construction Stage

Now is when all the thorough planning comes to fruition and you can see your house extension take form. Your Renovation Consultant will continue to provide full support during this phase by coordinating expert tradespeople and sourcing premium materials. Any issues will be dealt with quickly to keep the project on track and ensure you experience minimal disruptions.

Step 5

Your Finished Renovation

The last step before handing over your finished house extension is to ensure all Code of Compliance documentation is in order. Your Renovation Consultant will prepare all of the appropriate documents that prove your renovation has been completed up to code. Once that is settled, your renovation is done!

Create an Extension You'll Feel Proud Of

Recent House Extension / Addition Projects

Want to see the Refresh process in action? Take a look at some completed projects to see what our Renovation Consultants have accomplished and what it took to make it happen.

Why Choose Refresh for Your House Extension / Addition?

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We’re highly organised

Having delivered thousands of successful renovations, we’ve got our process down to a science. From the early planning stages through to project completion, our 5-step approach keeps your project organised at every phase.

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We care about results

At Refresh, we only work with qualified and skilled professionals who we know will deliver results that maintain our high standards. Homeowners can be assured that every task will be performed by trusted and experienced craftspeople.

House Extension / Addition Inspiration & Advice

For everything from loft extension design ideas to garage extension advice, check out our collection of helpful articles from experts who have done it all before.

Find your nearest house extension / addition Renovation Consultant

We have Renovation Consultants nationwide, find one near you.

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Our Renovation Builders Service The Following Locations

Ashburton & Timaru
Auckland
Auckland - Rodney
Auckland - Central
Auckland - Manukau & Eastern Bays
Auckland - North Shore
Auckland - West
Christchurch
Far North
Gisborne & Wairoa
Hawkes Bay
Invercargill
Manawatu
Marlborough
Nelson
Queenstown & Wanaka
Rotorua
Taupō
Tauranga
Waikato
Wellington
Whangārei

Andre is dedicated, creative, highly engaged and extremely positive to work with. He had some great ideas for our building project. He is also very reliable and has excellent contacts within the building profession.

⁠— 

Andrew Harrison

, Refresh Customer

We were looking to renovate and extend our home. Sharon was very professional and friendly and great to deal with throughout. Although we decided to go a different route, her advice was excellent and very helpful. Highly recommended.

Renovation Consultant: Sharon Giblett

⁠— 

Tim Jamieson

, Refresh Customer