Our experienced team will take care of all your plumbing needs.

We install a wide range of plumbing systems from scratch – mains or boosted cold water systems, hot water flow & return systems and more.  We’ll do it all to a high standard and meet current water byelaws without fuss. This is commercial plumbing, made simple.


Small boiler replacement jobs or large commercial boiler houses, all your heating requirements will be handled by our in-house team of professional and experienced commercial heating engineers.

Not sure what you need? We take care of all heating systems. We can carry out low, medium or high temperature systems and stream to all ranges of heat emitters & plants, underfloor heating and much more. We’ll find the system that works for you and your budget.

Air conditioning and refrigeration

PREAH started as an air conditioning contractor, and we’ve now got an in-house team of highly experienced engineers who deliver air conditioning and refrigeration works to a high standard, every time.

We can help with everything from a simple bottle cooler fridge in a bar to complex industrial walk-in cold stores, through to replacements and first-time installations – whether that’s small single split air conditioning systems or large commercial VRF systems. Whatever you need, our in-house team will make it happen.

We can also help keep your systems up-to-date and improve your green credentials with certified R22 replacements.


We can carry out industrial projects across all of the main models. From gas boilers to gas fired water heaters and piping up commercial kitchens – we’ll take care of it. Our team of Gas Safe accredited engineers will make sure your work is completed to a high standard, and fully compliant with the latest regulations. 


Commercial and industrial ventilation, done better. We’ll design and install supply and extract systems, air-handling units and MVHR units – all to meet your specific needs. Of course, all our installs comply with current regulations.

We also keep up to speed with industry developments, so you get the best.


We’ll help with minor fixes or small-scale projects and work with trusted partners for large electrical projects. We can work to a range of specifications – handling everything from cabling systems and building management systems to power distribution. Just ask.

Our experience and knowledge in this field is vital to deliver complex projects in a live environment – quickly, safely.

Renewable Energy

Biomass boilers. Air source heat pumps. Solar thermal panels. We have a range of green solutions to improve your approach to renewable energy and help you become more environmentally friendly. We can help you figure out the best way to improve your BREEAM ratings.

Whether you’d like a complete overhaul or some simple changes – we will design a solution that works for your business.

Other services

Thermal insulation? Commissioning and sterilisation of mechanical or plumbing services? Incoming external services? We cover all this and much more. Tell us what you have in mind, and our team will make it a reality.

If your plan isn’t fully formed yet, don’t worry. We can help you finalise it.