Our Services
Solutions for Your Engineering & Energy Challenges
Get reliable engineering consulting, design help, and energy efficiency solutions. Expert advice, real results, and no pushy sales; just honest support from a skilled engineer.
How We Help
Your Trusted Partner for Every Project
We know the stress that comes with complex projects and high energy bills. NZN Solutions delivers clear, quick answers so you waste less time and money. From product development and design engineering to energy efficiency and sustainability, we back every project with 30+ years of hands-on experience.
Electro-Mechanical Systems Engineering
Product Development
Apartment Block Energy & Sustainability
Home Energy Assessment
What You Get
Real Solutions, Not Empty Promises
We fix real pain points: delayed projects, costly bills, or ideas getting stuck in planning. When you work with NZN Solutions, you get answers you can use, fast.
Next Steps
Ready for Less Stress and Better Results?
Don’t let engineering, design, or energy issues hold you back. It’s simple to get started. Reach out for a quick consult, and Andrew will work with you to specify your needs and the best path to a fix. You’ll work directly with the engineer doing the work, never just a sales rep, so your project or building gets the full attention it deserves.
Our Approach
Why Choose NZN Solutions for Your Project?
We Listen First
Each project starts with your story, your pain points, and your goals. Andrew tailors every solution to what matters to you and keep you in the loop from start to finish.
No Pushy Sales
You speak with the engineer, not a sales rep. Every solution is based on your needs; never just what makes us the most money.
Proven and Reliable for Big or Small Jobs
With 30+ years experience solving tough problems, you get hands-on help and advice that actually works, every time.
The Expert
Work Directly With the Engineer
Skip the middlemen and avoid confusion. At NZN Solutions, you speak directly with Andrew. He makes complex design, building, and energy issues simple from day one, so you can move ahead with clarity and less stress.
Client Results
See Why Clients Trust NZN Solutions
Honest words from people who faced tough problems and found our team delivered.
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.
CEO, CityLite
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.
Strata Committee Secretary



