Dreaming of a bigger home but terrified it’ll all go wrong?
You love your home, but it feels cramped. The kids fight over bedrooms and bathroom time. Entertaining is a nightmare because your layout just doesn’t work. And the thought of extending? Scary. What if you blow the budget, make design mistakes, or end up overcapitalising?
At Certified Home Extensions, we’ve spent over 20 years helping Auckland families turn their homes into spaces they actually love without the stress and guesswork. We know what makes an extension go smoothly, and we know the common pitfalls that can ruin the experience.
If your home feels cluttered, the layout doesn’t flow, or you’re desperate for more space, it doesn’t have to be a choice between the home you love and the space you need.
Download yourFREE guide to extending your home, and start your project today!
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4 Reasons why extending your home is easy with CHE
Home extension specialists
Whether you’re planning a single storey, second storey, basement, bungalow or villa extension, experience matters. Home extensions aren’t a side offering for our team, we’ve completed over 200, backed by 70+ years of combined experience.
We understand how to seamlessly integrate new spaces into existing homes so they feel like they’ve always been there, not added on later. Personally overseen by our director Alvin, we take real pride in high quality craftsmanship and attention to detail. The goal is simple, when it’s finished, you shouldn’t be able to tell where the original home ends and the extension begins.
End to end project management
We’re a full end to end design and build team, which means we take responsibility for your home extension from concept through to completion. You’re not left coordinating different consultants or trying to keep everything moving between design, council, and construction.
Our goal is to bring everything together into one clear process and translate the technical detail so you always understand what’s happening and what it means for your project. That way, decisions feel simple, and you always know you’re moving in the right direction.
Fixed price certainty
Before construction starts, we work through a detailed scope and pricing process so you know exactly what your home extension will cost upfront, giving you confidence before you commit.
Clear communication throughout
We keep you updated at key stages throughout your project so you always know what’s happening on site without needing to chase information or manage the day to day. You also have access to our dedicated project management platform, where you can view schedules, track progress, and communicate with the team. On top of that, you’ll receive weekly client updates every Monday so you always know exactly where things are at.
Happy Clients
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Amanda And Deane Clark
Trustindex verifies that the original source of the review is Google.
Alvin, Emily and the team were a pleasure to deal with. Attentive replies to councils very detailed requests, made the process easier and more seamless.
All the tradies were friendly and reliable.
Pleased with the final outcome and would happily use the team again for future projects.
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Rames Pavadan
Trustindex verifies that the original source of the review is Google.
"I recently worked with Alvin and his team, and I am truly impressed by their commitment to detail. From the very first consultation, it was clear they prioritize every aspect of the project. They took the time to understand my needs and consistently went above and beyond to ensure nothing was overlooked.
It's rare to come across a company that cares so much about the finer details, but Certified Home Extensions definitely sets the bar high. I highly recommend them for anyone looking for meticulous, top-tier service. You won’t be disappointed!"
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Meleane Tava
Trustindex verifies that the original source of the review is Google.
We used CHE to add an extension to our home. As this was a first huge project not everything was smooth sailing but Alvin and his team helped us reach our goal. Emily was amazing to deal with and always got back quickly with any questions we had. Only reason for the 4 star rating was we had a few problems with the painters, having to come back a few times to fix up some imperfections, otherwise we are very happy with the work that we had done.
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Colin M
Trustindex verifies that the original source of the review is Google.
We used CHE for our home renovations, Alvin and the team were easy to deal with, accommodated changes on the fly and made suggestions and improvements all the way through the project. Big shout out to Emily as well for her patience and support from start to finish!
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Patrick Baker
Trustindex verifies that the original source of the review is Google.
I have known Alvin and Emily from Certified Home Extensions for a number of years and Alvin has always been helpful when coming in to guide me with my home renovation - his team is trustworthy and friendly - family owned business who love to help people with end to end project management for your next renovation dream - highly recommended!!!
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John van Winden
Trustindex verifies that the original source of the review is Google.
Alvin has assisted his client with a major renovation and extension to their family home and I was privileged to assist in organising the finance. When working with builders it is important they are open and transparent on the quoted costs, and in case of renovation / moving a home / adding an extension, Alvin went beyond his scope and him and his team kept us involved all the way through the project and this made the management of the funds relatively easy. The home looks great and the clients are very happy. I would recommend Alvin and his team to anyone who may think about a renovation project.
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suem99
Trustindex verifies that the original source of the review is Google.
CHE did an amazing job with the two projects they have undertaken for Franklin Hospice. The quality of the work was outstanding and all the staff and tradies were accomodating, friendly and even cleaned up after themselves. Great job CHE - I would highly recommend Sue
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Alison D
Trustindex verifies that the original source of the review is Google.
Great company to work with. They have been extremely reliable and efficient.
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Lewis T
Trustindex verifies that the original source of the review is Google.
Communication throughout the entire process was on point! We were kept across all major milestones and most of the back and forth with other parties was handled entirely for us.
The absolute key standout for myself and my family was that the work could be done (safely) while we were still living in our home. We knocked down walls, extended a room even replaced a wall with a new ranch slider and deck. A toddler and a cat could remain in the house throughout thanks to the processes, experience and cleanup that the team employed.
Great group to work with, if you value quality, clear communication and safety then it's a no brainer in my opinion. You definitely get what you pay for!
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Suhaylah Harun
Trustindex verifies that the original source of the review is Google.
Absolutely love the work Alvin does for us. Super fast and efficient. Definitely recommending to all my families and friends.
A single storey extension is the simplest and most cost effective method for adding more space to your home. This is because the excavation, engineering and strengthening costs are not as significant as they are with basement & upper level additions. The most popular type of single storey extension is the addition of a private master suite that is full of sunshine and/or an open plan kitchen/living/dining area. Doing one or both of these means that you and your partner can enjoy a quiet retreat, while your growing family has the space that they need to stretch out or spill outdoors.
If you are in the fortunate position of having ample backyard space (or maybe just really don’t like mowing lawns), a single storey extension is definitely the way to go. Whether it’s a single bedroom or perhaps a luxurious master suite, we’re worked on over 237 extensions since our company started in 2003, so can give you the best advice on design, cost and layout. Call our team now, and let’s chat about what a single storey extension might look like for your family.
One of our most popular single level extensions is to increase the amount of indoor outdoor flow, usually through the addition of an open plan kitchen / dining / entertainment area such as the one that is featured here
Its important to keep in mind when you are considering extension options, that a new upper level requires shrink wrap and significantly more structural work than a single level extension. Its always worthwhile if you are going to get good views, or if there is no other alternative, but if cost is a factor, it may be worth considering other alternatives.
Second storey extension
One of the main reason why people consider a second storey extension is so that they can capitalise on the amazing views that we are blessed with in this beautiful country we call home. If you can see Rangitoto from the garage roof, it is definitely worth entertaining the idea of a second floor addition.
Also, every kiwi family wants to have space to kick a ball around or have a big covered deck flowing onto garden, that is the envy of all their friends. A second floor addition can be the best way to ensure that you get the best of both worlds, as it adds the bedroom or bathroom you need, while ensuring that you retain your backyard space.
Adding a second floor addition can be complicated and its important that you involve a company with expertise right from the early stages. Otherwise the cost of your master bedroom addition can easily blow out and before you know it, you might have wasted money on plans for a project that you can’t actually afford to build.
Here at Certified Home Extensions we have been adding second storey extensions to homes all over Auckland since 2003. Whether it’s a master bedroom, living area or rumpus room for the kids, we’ll make your experience easy from design to build.
Do you have a dark, dingy space underneath your home? Perhaps it has been dug out, but not lined and has no concrete floor? Short on space otherwise due to a small section? A basement extension is definitely the way to go. You’ll be amazed at what we can achieve from what is probably just a junk storage area or make shift man cave at the moment!
We’ve helped clients to create a number of different basement conversions of varying complexities and sizes. These have ranged from a bungalow basement extension to create 3 bedrooms, a living area, a bathroom and laundry, to a lounge and laundry conversion, to the creation of a minor dwelling/small flat that was used for international students. The options are endless!
Choosing to complete a basement extension also means that you don’t have to sacrifice your section space. The kids can keep their trampoline, and you get to keep the BBQ area or spot for a future pool intact which is the ultimate win-win. A basement extension can also offer more possibilities than a single story extension, as we are not limited by section space and can often utilise the whole area underneath your home, creating a floor plan that is perfect for you and the family. Get in touch today and let’s discuss how we can help to make your dream basement extension a reality!
This render is a great example of what a high spec basement conversion can look like. We took what was essentially dirt and transformed it into three bedrooms, a living area, a third bathroom and a second laundry. Enough space for the whole Hulena family to enjoy!
Start your home extension with confidence, guided by our expert process!
Since CHE was established in 2003, we’ve helped over 237 clients to re-imagine their homes through either a home extension, or a full house renovation. Over the years we’ve developed our 4 steps to success for helping us to understand the needs and requirements that are unique to each project. Following these make it easy for us to offer you expert advice, recommendations and solutions that help you to get a home that you can be proud of.
SHARE YOUR VISION
Tell us what’s not working in your home, how you want to live, and what you hope your space will look like once our team completes your project.
If our approach sounds like what you’re looking for, book your free 15-minute clarity call here. Zero pressure, just a no-obligation chat about what’s possible and how we can help you best.
Bombay based, covering Auckland and Hamilton regions
If our approach sounds like what you’re looking for, book your free 15-minute clarity call here. Zero pressure, just a no-obligation chat about what’s possible and how we can help you best.
Bombay based, covering Auckland and Hamilton regions
