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Sustainability and energy performance are a crucial part of every building project. It’s something we all want to get right, but the targets and the rules keep changing…


….luckily, you don’t have to tackle it alone.

Buildpass is your one-stop energy and sustainability consultant helping you deliver a low carbon future in a simple, cost effective way.

We are Buildpass and we’re here to help you conquer the world of energy performance and sustainability. We’ll help you get it right and navigate the complexities. You’ll meet planning and building control requirements, reduce your risks, cut your costs and tick all the boxes. Together we will build better spaces to live and work.

Whether you select one of our services or make the most our dedicated whole project lifecycle consultancy you’ll be able to focus on what you do best because you’ll know compliance, testing and certification are all taken care of.

But ticking boxes is just the start. Whether you’re an architect, developer, contractor or homeowner, we can help you:

Save Time and Money
Integrate energy efficiency into the initial design, saving you time and money later on.
Save Money
Push the limits of what’s possible and reap the rewards of a building that costs next-to-nothing to run.
Smooth Process
Turn a potential minefield into a simple, streamlined and enjoyable process.
Combat Climate Change
Contribute to the increasingly urgent movement to combat climate change.

From our base in Southampton, we work across the south of England, London and the home counties – and we also have clients in the further corners of the UK.


But who are we?

I’m Andrew, and I am the Director here at Buildpass. I’m something of a geek when it comes to sustainability and energy performance. Ever since I started out, I’ve been hooked on the intricacies of energy performance and the vagaries of our government’s policies. I know it’s not everyone’s cup of tea, but it’s most certainly mine. And on this warming planet of ours, it’s becoming more and more important.

Andrew Sadler

Find out more about the story of Buildpass and what led me here.


Why choose us?


We know that when you need an answer, you need it quick. We endeavour to provide speedy responses and solutions to any problems you might face.


Our services won't break the bank - we're all about maximising the UK's energy efficiency, and our prices reflect that.


We aren't attached to any agencies or partner organisations, meaning you will always get 100% honest and impartial advice from our team.


We've got over a decade of experience behind us; you can trust in our knowledge, expertise and attention to detail.


We believe that genuine, personal relationships are the key to success. It's important that you know, like and trust us, and we'll do everything we can to make that a reality.


We are always just a phone call away - you can rely on Buildpass to guide you, support you and help you reach your goals.


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