Love where you live but need more space? At Gareth Davis Builders, we specialise in quality home extensions that help Canterbury homeowners create more functional homes without the stress of moving.
Seamless Home Extensions
in Christchurch & North Canterbury
A Better Extension Experience
With Gareth Davis Builders
You love your home and neighbourhood, but your current space is no longer cutting the mustard? We know the feeling. And we know the solution! A well-designed extension can completely change the way you live in your home. By creating more space you can have a home that feels comfortable, functional, and enjoyable again without the worry of having to move.
At Gareth Davis Builders, we understand that extending your home is about more than adding square metres. It is about creating spaces where your family can grow, connect, relax, and make memories for years to come. Whether you need more room for a growing family, an extra living area, or simply a home that works better for everyday life, we take the time to understand how you want to live in the space.
Unlike builders who mainly focus on new builds, our team genuinely enjoys the problem solving and attention to detail that comes with extensions and renovations. When blending new and existing spaces seamlessly, we pride ourselves on delivering a smooth and enjoyable experience for our clients and a quality extension that feels like it has always belonged there.
Our Home Extension Services
Extensions Designed For Better Living
Transform your entire home with more space.
Love your home and neighbourhood, but need more space?We build seamless extensions that improve flow, functionality, and everyday comfort.
From open plan living areas and kitchen extensions to extra bedrooms, bathrooms, and family spaces, we create practical additions that feel naturally connected to your existing home.
Second Storey Extensions
Can’t go out? Go up!
If your section size is limited, building up can be a smart solution. Second storey additions can dramatically increase living space while maintaining valuable outdoor areas. These projects require careful planning and experience to ensure the new addition integrates well structurally and visually with the existing home.
Garages, Workshops & Home Offices
More Room for Activities
We build practical extensions for garages, workshops, storage areas, and home offices that improve the functionality of your property and adapt to changing lifestyles.
We create additions that feel well integrated with your existing home while adding long-term practicality and value.
Frequently Asked Questions
About Home Extensions
Why hire an extension specialist instead of a general builder?
Renovations require a very different skillset to new builds. Working with existing homes involves problem solving, careful planning, great communication, and attention to detail. At Gareth Davis Builders, renovations and extensions are a core part of what we do, and our team genuinely enjoys the process of transforming homes.
For more detailed information, read our article on the importance of choosing a specialist renovation builder.
Will the extension match my existing home?
A good extension should feel like it has always belonged there. We work with experienced designers and place a strong focus on blending new and existing spaces through careful detailing, material selection, rooflines, and finishes to create a seamless result.
Can you help with extension design and planning?
Absolutely, we love to help with the planning and design phase. We have trusted designers and architects we work along side to provide you a full design and build service, or we can work with a designer of your choice.
How much does it cost to extend your home in Christchurch or North Canterbury?
The cost of a home extension depends on the size, complexity, design, and level of finish. Factors such as plumbing, structural work, kitchens, bathrooms, and site access can all impact pricing. We are happy to discuss your ideas and provide guidance on realistic budgets during the early planning stage.
For a more detailed breakdown of renovation costs, budgeting tips, and the factors that can affect pricing, read our article on what a home renovation can cost in Christchurch and North Canterbury.
What types of extensions do you build?
We build a wide range of home extensions including living area extensions, kitchen and dining additions, extra bedrooms, master suites, second storey additions, garages, workshops, home offices, and outdoor living spaces.
Can we live in our home during the extension?
Often, yes, although it depends on the scope of the work. Many clients remain living in their home during the build, and we carefully plan projects to minimise disruption wherever possible. For larger or more complex extensions, temporary accommodation may sometimes be recommended.
What areas do you service?
We work across North Canterbury in the Waimakariri and Hurunui districts. We focus Rangiora, Kaiapoi, Pegasus, Woodend, Amberley and surrounding areas, and we also service the northern suburbs of Christchurch.
Do you offer fixed-price contracts?
Yes, we typically work with fixed-price contracts to give you certainty and peace of mind around the overall cost of your project. However, when adding an extension, there can be unforeseen elements that only become clear once the job is underway. In these cases, we’ll discuss any required variations with you, and it’s wise to have a contingency budget in place to cover unexpected work if needed.
How do I get started with a extension project?
The best place to start is by getting in touch with us for an initial conversation. We can discuss your ideas, budget, timeframe, and whether your extension project is likely to be a good fit before moving to the next stage.
Our Extension Process
01.
Initial Consultation
We start with a no-obligation consultation to understand your goals, budget, and timeline. Whether it’s a small extension, or you are adding significant space to your home, we will tailor the process to you.
02.
Design & Planning
We work with you to plan your design, select materials, and finalise a realistic budget. We collaborate with our designer, or yours to create a seamless addition to your home.
03.
Consent & Final Quote
The deisgner will handle the council consent process. Once consented, we review the approved council issued plans and finalise the quote to ensure everything aligns with your budget before construction begins.
04.
Contract Signing
Once the quote is approved, we prepare a Master Builders contract covering scope, timeline, payments, and guarantees, along with issuing a deposit for 10% of the contract price. Once we receive a signed contract and deposit, work on your new extension will begin.
05.
Construction Begins
The exciting part – we break ground. We manage the build from start to finish, keeping you informed and on track throughout.
06.
Handover
Once finished and signed off, we hand over the keys and do a final walkthrough to ensure you’re happy.
What Our Clients Say
Thinking Of Renovating?
We make it easy with our free renovation guide. We send it straight to your inbox!
Make Your Home Energy Efficient
With A Green Home Loan
Make the most of these green loans when planning your extension. You may be able to access low-interest or interest-free Green Home Loans through major New Zealand banks including ANZ, Westpac, ASB, and BNZ to help fund energy-efficient upgrades to your home.
These loans can assist with improvements such as heat pumps, insulation, double glazing, ventilation systems, hot water upgrades, solar power, rainwater tanks, waterproofing, and more. This helps create a warmer, healthier, and more energy-efficient home. Depending on the bank, eligible homeowners may be able to borrow up to $80,000 at low or even 0% interest rates for a set period.
Love Where You Live?
Let's Create More Space!
Whether you’re still exploring ideas or ready to extend your home, as experienced extension builders, we are here to guide you through the process from planning to completion. With clear communication, careful project management, and quality craftsmanship, we’ll create a seamless home extension to suit your families needs. Get in touch to discuss your ideas, get expert advice, or request a quote.
