You love where you live, but your home isn’t working for your family. Maybe you need more space, a better layout, or a stylish modernisation, and you’re not sure where to start. That’s our speciality.
Book your free 15-minute Clarity Call today. No pressure. No obligation. Just a friendly chat about how your home extension or renovation can become simple, clear, and stress-free from start to finish.
You don’t have time to manage trades, council requirements, or the endless decisions a building project brings. Lasting quality without the gold-plated extras is what matters most.
Worried (about Costs)?
You know what you can afford, but every story of a budget blowout makes the little voice at the back of your mind question whether extending or renovating is worth the risk.
Unsure (about the Possibilities)?
You know what you want, but you’re not confident it will work, blend with the existing house, or you have no idea what the council requirements might be.
$m+
projects completed
+
happy clients
yrs+
experience
Our proven building process, Auckland to Hamilton
01
Chat & clarify
A free, friendly, no-obligation call where you share your ideas, your frustrations, and what you want to achieve. You’ll walk away with clarity on your options and next steps.
02
Design, plan & approvals
Together we turn your vision into practical designs, realistic 3D renders, and a detailed plan. Council requirements, consents, and the stressful decisions are handled for you by our team. With our fixed pricing and clear communication, you’ll always know exactly what to expect.
03
Build & enjoy
Our fully managed construction process takes care of all the hard stuff, with Alvin personally overseeing the project. Sit back and watch your home transform, stress-free, into a space you and your family truly love.
Looking to add more space without leaving the home you love? We specialise in seamless, end-to-end home extensions that blend perfectly with your existing layout. From concept to completion, we take care of everything.
Want to refresh or modernise your home without the stress? Our fully managed renovation service brings clarity and calm to the process, delivering quality results with minimal disruption and a finished space that you’ll be proud of.
Stay in your home while we renovate, no moving out, no disruption, and our barefoot walking guarantee ensures safety and peace of mind.
Specialist focus
Nearly 25 years specialising in extensions and renovations means you get smarter solutions, better ideas, and a smoother, hassle-free experience.
Company director oversight
Alvin, our Founder, personally oversees every project to make sure your vision is delivered exactly as intended
Pricing certainty
Fixed-price projects give you certainty from start to finish, with no surprises, hidden costs, or last-minute shocks.
Stress free process
We take care of everything from council approvals to trades, so you can relax and enjoy the renovation or extension experience from start to finish.
Clear communication
Every step is explained and every decision guided, so you feel informed, comfortable, and secure throughout your renovation or extension.
Hear from those we've worked with
Posted on
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.
Posted on
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!"
Posted on
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!!!
Posted on
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.
Posted on
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
Posted on
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!
Posted on
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.
Yes — we provide end-to-end project management, from shaping your ideas and connecting you with the right designer, through consenting, and right through construction to completion.
Absolutely. We’ll introduce you to one of our carefully chosen architectural design companies so your home is designed around your lifestyle, needs, and budget.
We build a detailed scope and involve key sub-trades early, then review quotes to make sure nothing is missing — so the fixed-price figure is based on real, checked costs (not guesswork).
Your fixed price won’t change unless you change your mind. If something genuinely unforeseen comes up, you’ll receive a written variation so you stay in control of costs.
During construction your build is checked against a rigorous quality-control checklist, and a final walkthrough is completed before handover to ensure nothing is missed.
Yes — Certified Home Extensions are members of the New Zealand Certified Builders Association, and your project is backed by a comprehensive 10-year residential building guarantee.
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Get in touch
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
