Reduce heating and hot water costs by around 20%
OH4 helps your existing heating or cooling system work more efficiently – without replacing your boiler or causing disruption.
Could your business save thousands on energy costs?
We help businesses reduce costs, improve efficiency and find practical ways to make sustainability work for them.
We understand that businesses need more than sustainability advice they need practical solutions that make commercial sense.
With experience across business efficiency, water, energy and sustainability, BSUK brings together the expertise and specialist partners needed to identify opportunities and help put them into practice.
We focus on real business outcomes, whether that means reducing costs, recovering money, improving efficiency, meeting customer or regulatory requirements, or planning for the future.
One business. One point of contact. Practical solutions that work for you.

Let’s look at where your business could be spending more than it needs to and identify practical opportunities to reduce costs.

Put those savings opportunities into action to make your business more efficient, cost-effective and sustainable.

Having identified savings and improved efficiency, you can choose to reinvest those savings in further improvements that deliver even greater benefits.
Experienced in business. Focused on creating value.
With 15+ years of experience, BSUK brings together practical business knowledge, specialist expertise and a network of trusted partners to help businesses identify and act on opportunities for improvement.
We work across business efficiency, water, energy and sustainability, connecting businesses with the right solutions without the need to manage multiple specialists themselves.
Our role is simple: understand your business, identify the opportunities and help you take the right next step.
Whether the opportunity is reducing an existing cost, recovering money, improving efficiency, meeting a business requirement or planning for the future, we focus on solutions that make commercial sense.
One business. One point of contact. A simpler way to improve your business.

Finding the right energy deal for your business isn’t simply a matter of getting a few prices. If you have multiple properties, different contracts, different consumption patterns and different requirements at each site, properly researching your options can take hours. You need to understand what you currently have, which providers can meet your requirements, what…

How improving the efficiency of an existing system could reduce energy costs When energy costs rise, businesses naturally look at tariffs, suppliers and contracts. But there is another question worth asking: Could your existing heating or cooling system be using more energy than necessary? For hotels, care homes, commercial buildings, retail premises and other larger…

As a supplier aiming to do business with the National Health Service (NHS), understanding NHS Evergreen Compliance is crucial. The NHS operates with a series of standards and regulations that ensure suppliers are meeting the necessary criteria for quality, safety, and ethical business practices. This guide provides you with an overview of what NHS Evergreen…