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Buildpass provide sustainability and energy performance support in the built environmentBuildpass provide sustainability and energy performance support in the built environment

Let us remove the guess work from
building performance

As leading building energy, sustainability and compliance specialists we help architects, developers and self-builders develop sustainable and low carbon construction projects from concept to occupation.

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Energy and Sustainability Services under one roof

Together we build better spaces to live and work.

We are Buildpass and we’re here to help you conquer the world of energy performance, low carbon construction and sustainability. From building regulations compliance to Passivhaus and whole carbon lifecycle, we’ll help you get it right and navigate the complexities. You’ll meet planning and building control requirements, reduce your risks, cut your build costs, reduce your running costs and tick all the boxes, whilst doing your bit for the environment.

Our services from concept to post-occupancy

Through our range of services and wealth of experience, we’ll give you the confidence to deliver low carbon sustainable projects, whether you pick a one-off service or a complete start to finish bespoke package.

We work with a wide range of clients

What we love about our job is the wide range of projects we get involved in and the amazing clients we get to work with, from the homeowner building their life long dream to the housing associations building homes with wellbeing at the centre we are here to help at every stage. Click on the links below to see how we help clients like you deliver on their projects.

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.


Don’t just take our word for it, look at some of our reviews

I recently worked with Andrew from BuildPass on a new build project of mine and from the start to finish I found him/them to be super efficient, quick with replies and overall I am very happy with their service! Will 100% use them again!

Buildpass were extremely flexible and helpful in undertaking the air test at our property.
Very helpful with giving advice and help too.

Graham was very helpful in sorting out a difficult BC officer by providing SAP and U value calc for an extension. Always available on the phone, and has enough experience to help fight your corner. Highly recommend.

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