Mechanical Contractors
Reliable mechanical infrastructure is essential for the smooth operation of any commercial property. At Berkleys, we support commercial developments across London and the Home Counties with specialist mechanical installation expertise, working with developers, principal contractors and building owners on projects of varying scale and complexity.
Our engineers deliver a wide range of mechanical installation works, including pipework distribution, plant room construction and water system infrastructure. We also install and upgrade equipment such as booster sets, pressurisation units, calorifiers and water storage systems to ensure dependable hot and cold water services throughout the building. Every installation is planned carefully, executed professionally and commissioned to ensure dependable long-term performance.
Our Mechanical Contractor Solutions in London and the Home Counties
Mechanical Installations
Full mechanical fitouts for commercial and mixed-use buildings, including complete system design and installation, pipework distribution, plant room builds, pressurisation units, hot and cold water services, and all associated mechanical infrastructure. We work with main contractors, developers, and building owners on projects of all scales.
Plant Room Design & Build
We design and construct plant rooms to the highest standard, from initial layout and specification through to full installation and commissioning. Our engineers understand how to maximise efficiency and accessibility within plant room environments, and our work is built to last.
Booster Sets & Water Systems
Supply, installation, and replacement of cold water booster sets, pressurisation units, calorifiers, water storage tanks, and associated controls. We carry out full system surveys, advise on the most appropriate specification, and deliver the installation with minimal disruption to building operations.
Why Clients Choose BPH as their Mechanical Contractors
Commercial mechanical contractors are responsible for the design, installation, and maintenance of building services such as heating, plumbing, and water systems. At Berkleys, we deliver complete mechanical solutions across London, covering everything from full system installations to plant room upgrades and specialist water services.
Mechanical installations typically include heating systems, pipework, plant equipment, water services, and controls. We manage projects from initial planning through to installation and commissioning, ensuring all systems are installed safely, efficiently, and in line with current regulations.
Yes, we provide full plant room design and build services for commercial properties across London. This includes system layout, equipment selection, pipework design, and installation. We work closely with consultants and contractors to deliver plant rooms that are efficient, accessible, and built for long-term performance.
We design and install water systems in line with current UK regulations and best practice guidance, including considerations for water hygiene and system safety. Our experience across London ensures that commercial water systems are installed and maintained to meet compliance requirements and operate reliably.
Yes, we regularly carry out mechanical upgrades and refurbishment works within existing commercial buildings. Whether improving plant room efficiency, replacing outdated systems, or upgrading water services, we plan works carefully to minimise disruption to occupied environments.
We work across a wide range of commercial environments including offices, retail spaces, schools, and heritage buildings such as churches and listed properties. With over 50 years of experience, Berkleys deliver mechanical contracting services across London and the Home Counties with a focus on quality and reliability.
The Sectors We Work In
We have extensive experience working across a wide range of commercial environments, including:
- Commercial offices and multi-tenanted buildings
- Historic and Grade I & II listed properties
- City of London livery halls and legal institutions
- Royal institutions and heritage estates
- Managed residential blocks and mixed-use developments
- Retail and hospitality premises
- Educational and civic buildings



