25 years of solving what others overlooked
Public sector estates, schools, and industrial sites have run inefficient energy systems for years, not because nobody noticed, but because nobody had the budget to fix them. We built WN1 Sustainability to remove that barrier.
The people behind it
Experienced practitioners who understand the work
Darren Halliwell
Jon Leggott
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David Coates
Martin Brown
Dominika Gajda
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Kylie Leggott
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Paul Williams
Lisa Davies
Noah Ibbeson-Smith
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Andrew Wood
Rhianna Cheshire
Vicky Foxcroft
What we’ve delivered so far
Real outcomes from real projects. Energy saved, carbon cut, organisations moving forward.
Over 45 million kilowatt hours saved
Schools, hospitals, and councils cutting consumption through better systems. Efficiency that compounds year on year.
Over 45 million kilowatt hours saved
Schools, hospitals, and councils cutting consumption through better systems. Efficiency that compounds year on year.
Over 45 million kilowatt hours saved
Schools, hospitals, and councils cutting consumption through better systems. Efficiency that compounds year on year.
Questions
Find answers to common questions about our approach, timescales, and what to expect.
How long does an assessment take?
Every project starts with a free site survey, covering your fittings, energy consumption, and hours of operation. From that we build your saving model and installation plan before you commit to anything. Timing depends on the size of your site, and we'll confirm a date when you book your free audit.
What’s the typical payback period?
There isn't one to wait for. Sustainable Estates Programme means zero up front cost, so you're not recovering capital, you're paying through the saving the project generates. For LED, savings start the day the new fittings are commissioned. For solar, they appear from your first full billing cycle. We model your specific numbers in the free audit, so you see them before you sign.
Do solutions disrupt daily operations?
No. We schedule around your operation, not the other way round. For schools, that's evenings, weekends, and half-terms. For commercial estates, we phase delivery site by site. For NHS and manufacturing sites, we work around clinical or production schedules.
Which sectors do you work with?
Four: Education, Commercial, NHS, and Manufacturing & Industrial. Each has its own procurement route and operational rhythm, and we deliver to fit it.
Ready to start your sustainability journey?
Let's talk about what's possible for your organisation. Our team is ready to listen and advise.
