Trusted Engineering & Energy Solutions for Your Home or Business
Get fast, expert help from an engineer who’s passion and expertise in design and alternative energy Solutions took flight in 1989. While still at University, Andrew and his team clinched a Guinness World Record for the World’s first human powered helicopter. Andrew delivers top engineering consulting, building energy and sustainability assessments, and efficient Solutions you can trust. No hard sell. Just real results for people who need to lower energy bills, innovate new designs, or meet tough deadlines.
Why Choose NZN Solutions?
Not just another consultant. Andrew is an expert with decades of hands-on engineering and energy experience. Our family team gives honest, clear advice and real Solutions That Work. From lowering your energy bills to solving complex design problems, NZN Solutions is here to make your life easier.
Engineering Consulting
Stuck on a tough project or need extra skills? I handle the complex engineering for you with practical and proven design services to help you get great results, on time and on budget.
Energy Efficiency
Is your building drafty, too hot, or too cold? Are energy bills out of control? Get a clear, unbiased energy and sustainability report to increase comfort and cut costs, now and into the future.
SolidWorks CAD
Need clean, fast SolidWorks CAD files or drawings for prototypes? We produce clear, ready-to-use plans that lead to smooth builds and happy teams.
Prototyping & Product Development
Got a product idea but missing the steps from concept to prototype and production? We support start-ups and busy teams, so you get to working models and move on to production with less waste.
Engineering and Energy Expertise
Solve Your Challenges With Confidence
If you’re tired of high costs, delays, or poor advice, you’re not alone. Many people wait too long to call in an expert and end up with bigger bills or projects that stall out. NZN Solutions brings honesty, integrity, and skill to your project. We treat your home or project like our own and always work for the best results, not the hard sell.
Independent Advice, Real Results
Independent Advice, Real Results
We are truly independent. We never push products or try to sell you on things you don’t need. You’ll get honest advice and bespoke solutions that are right for you. Our work covers new designs, energy audits, and big fixes to persistent comfort or cost pain points. Let’s talk about what you need most and how we can help get you there.
Local Expert. Global Reach
Talk Directly to the Engineer
Tailored Engineering Support
Don’t Settle for Cookie-Cutter Solutions
Each project or building is unique, and so are your problems. Our custom engineering consulting and energy solutions are built around your actual needs. Whether you need a fast prototype, a real energy fix, detailed CAD drawings, or full concept to release Product Development, Andrew at NZN Solutions works side-by-side with you and your team from start to finish.
Why Clients Choose NZN Solutions
Why Clients Choose NZN Solutions
No Hard Sell. Just Honest Help
Get clear advice and practical fixes. I don’t sell equipment or push one-size-fits-all plans. My goal is to solve your problems and earn your trust.
30+ Years Proven Know-How
I’ve seen the lot, from rushed projects with poor specifications to costly energy issues. My experience means you get quick results and no nasty surprises along the way.
End-to-End Project Support
From start to finish, I’ll keep you informed and in control. Enjoy hands-on support at every stage, without getting lost in technical talk or sales fluff.
Why It Makes Sense
A Smarter Way to Solve Design and Energy Problems
With NZN Solutions, you’re not just hiring help; you’re getting a genuine partner for design engineering, energy audits, and product development. Our process is open, easy to follow, and focused on delivering the solutions you need without delay. Put your trust in a real local business that values your success.
Stress-Free Projects
Too many deadlines, too few hands? I help teams keep projects on track and avoid crisis mode. My agile consulting gets your projects moving.
Big Savings on Bills
Stop bleeding money every month. Energy prices are only going up, and our energy assessments find and prioritize the savings opportunities and provide ways to cut costs for real, sustainable savings.
Comfortable environment means happier People
Stop putting up with drafty or stuffy rooms. We help you get a home or business that feels right, with clear steps and real fixes.
Proven Outcomes
What Clients Say About NZN Solutions
People trust us because we deliver. See how our engineering consulting and energy solutions have made a real difference.
Andrew Letton from NZN Solutions provided excellent service at our 70‑unit apartment building. He was professional, knowledgeable, and very easy to work with throughout the process. Andrew clearly knows his field, and the quality of the report gave us great confidence. We’ve already implemented suggested strategies for cost savings. Highly recommended
Lindy W
Andrew is extremely experienced, knowledgeable, versatile and efficient. He has a broad spectrum of engineering capabilities from inception through production. He is easy to work with and communicates well. We have contracted him to work on existing and new designs and concepts creating CAD models and drawing sets, as well as, simulation and FEA studies even before he started NZN Solutions.
John B.
Really really appreciated working with Andrew on strata energy efficiency projects.
He is great to work with, due to excellent & rapid communications, engineering experience, software skills & working with an open mind on difficult problems.
Highly recommended.
Ian G.