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Why Choose Us





Expert knowledge and experience

CBANZ conference

Caption: Alvin waiting to speak at the NZCB conference

Building an extension or renovating an existing space is tremendously more difficult then starting from scratch with an empty section and building a new home, thus experience is crucial when considering who will help you to make the dream that you have for your home a reality. After having successfully completed 139 (soon to be 140) home extensions, the A&A team has all of the experience needed and more when it comes to working on treasured family homes.

Throughout Alvin’s twenty one years in the Construction Industry he has encountered and overcome just about every problem imaginable with a building project. After thirteen years of focusing solidly on extensions, the likelihood of a challenge arising on your project that we do not know how to overcome is extremely unlikely.

Based on this experience we have compiled the challenges that we have overcome into a comprehensive 267-point Quality Assurance Checklist that all of our subcontractors abide by in order to ensure that we are constructing your extension dream to premium standards.

Complete Turn Key

Why Choose Us
Here at Certified Home Extensions we seek to provide all of our clients with the complete turn-key solution i.e. the ultimate one stop building company and experience.

This means that all you have to do is tell us about your extension dream, meet with one of our dream creators & designers and then sit back and relax as we manage the concept to completion process on your behalf.

Our team assists with your designing process (ensuring it runs as efficiently as possible), deals with council in order to obtain the required consents, organises the sub trades and then manages the construction process while keeping you updated every step of the way and ensuring that you have a stress free journey towards making your extension dream a reality..

Comprehensive Communication

Comprehensive Communication

Throughout the stages that we will work through together as we strive to make your extension dream a reality, communication is key to ensuring that you understand what is going on at every step of the way. As we go from concept to construction, we will update you regularly about what has happened and what the next step is. Throughout the design stage this will involve a weekly phone call whilst during construction Alvin will come out and meet with you and your partner once a week.

We also encourage you to give us a call at anytime no matter how small the question or idea, although we can’t guarantee that we will respond immediately if you call at 2am one of the key benefits to us being a smaller company is that during business hours one of our team is always reachable and only too happy to assist!

Action Plan

 Action Plans

One of the ways that we strive to maximise your levels of confidence is through the 13 page Action Plan that we provide pre construction. This 13 page Action Plan is broken down into approximately 24 unique categories with all materials that will be built into your dream extension listed and included. Sometimes it takes 2-3 revisions to get these 13 pages 100% correct but we are happy to do 200 revisions if that is what it takes, we want you to understand every detail and material that is going into your project. Rather than saying “Hey! I thought that was included!” we guarantee that you will be impressed with the depth of detail in what we have covered. The ultimate level of transparency that our Action Plan provides means that you have absolute clarity with regards to constructing your extension dream.

Let's Renovate Your Home Together

Although we have completed over 139 projects, each one has been unique with special needs and requirements. That’s why we have developed our 7 Steps to Success so that we can get as much information from you as possible before providing you with our expert advice, recommendations and proposed solutions.









Your extension journey usually begins when you make the decision to give us a call on 09 236 69443.

During our first phone call we’ll ask you a few questions so that we gain the most accurate understanding possible of how we can help you best.

Once we have finished & become fast friends, we’ll schedule a time for one of our team to come out and see you so that we can complete the picture as to what your completed extension dream will look like.


Once we have touched base for the first time (see Step One) we will usually schedule a time for one of our team to come out to your home and meet with you and any other decision making parties that may be involved with your project.

Our main purposes during this session is to leave with the full understanding of your reasons for choosing to extend or renovate, the financial resources you have available, the timeline that you would like to meet and the picture you have in your head of what your completed dream for your home will look like.

We encourage you to have on hand any ideas, house plans, section information, pinterest boards or any other relevant information that will be helpful for us when we are seeking to help you make the dream that you have for your home a reality. Remember any question is a good question so never be afraid to ask during these sessions!


(If you have plans already skip ahead to Step 5)
Once we have met onsite for the first time, we’ll arrange for you to meet with one of our personally chosen architectural designers who will be ideally suited to your project.

Their extensive experience (all of our designers have been drawing plans for 10+ years) will enable them to add to or improve any ideas that we have come up with together – that is if we haven’t found the perfect solution already ☺ while getting a feel for exactly what you want to achieve from your building project.

Within 2-3 days of this session we’ll send you an investment proposal for how much the designer believes the design stage of your dream will cost and once you are happy they will be able to start drawing!

With their extensive architectural experience, they will further add on to any ideas previously discussed and more and will be able to quickly identify challenges on site that council may pick us up on. By identifying these challenges early we can better prepare ourselves later down the track during council consents stage.


We pride ourselves on the way that we coordinate the process of getting from concepts to building consent from our clients, believing that bar any unforeseen complications we can have you ready to start construction approx six weeks faster then any other company.

The team at CHE does this through constant communication; with you so that you always know what is happening and with the designer + council to make sure that you remain a priority and that things happen as fast as possible.

Dealing with council especially can often be quite challenging and that’s the real bonus of dealing with a company like us, we spend our day working for you making sure that your dream for your home is made a reality as smoothly and with as little stress as possible!


Within 10 days of us submitting for Building Consent we will schedule a site visit with all of our important subcontractors e.g. builder, plumber, electrician etc. We feel that it is in the best interests of all parties to get the specialists to site to give us a price so to speak as they can sometimes make us aware of potential problems or issues, reducing the risk of any unforeseen surprises and giving you complete clarity before you start paying our guys to do a job that for some reason may be more difficult than expected for them to complete.

Once they have submitted their prices to us, we will compile them into a 13 page Action Plan. This Action Plan is tailored to your project and will give you a full understanding of what has and has not been taken into consideration e.g. we may exclude electrical work because you have your own electrician that you would like to use. Alvin will personally present this plan to you and go through every detail, the last thing that we want you to be saying is “Hey, I thought that was included.”


Hooray! Once you are happy and have signed off on your Action Plan we can usually begin construction within 4-6 weeks. (depending on the availability of the builder).

During Construction Alvin will organize weekly meetings and send weekly reports so that we ensure that you are kept updated every step of the way.

If you have a question, would like an additional meeting or require clarification at anytime then give us a call and we will be happy to arrange whatever necessary


The end of our journey together draws nigh! 🙁

At this stage your extension dream has been made reality, final payments have been made and you are living happily ever after!

You will also receive;
– Commercial Clean of your Home
– Signed Off Code of Compliance Certificate
– A Bottle of Champers and a Gift Basket to celebrate

Of course our journey together will never really be over, we pride ourselves on providing the ultimate level of service even when your building project has been completed If something should come up throughout the course of you living in your dream then feel free to give us a call and we will be more then happy to help

Tell us a little more about YOU!

Simply fill in the form below and one of our team will get in touch to discuss how we can best help you to make the extension dream that you have for your home a reality

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