
LTI Metaltech, Milton Park
Two Vaillant ecoTEC Plus 64 kW boilers, a custom cascade frame and hydraulic separation for occupied offices.
View the projectOxyplumb Commercial · Oxfordshire
Replacing a commercial boiler can feel like a big job. We can help you choose a suitable system and plan the work around your school, workplace or business premises in Oxfordshire.

We start with what your building needs, not just the model written on the old boiler. Together, we can look at the heating demand, available space and connected equipment to work out a sensible replacement.
Tell us when heating and hot water can be interrupted and whether other contractors are involved. At LTI Metaltech the Oxyplumb Commercial team installed twin Vaillant boilers on a custom frame around occupied offices. At Carterton Town Hall, replacement work included hydraulic separation and changes to the connected system.
Yes, photos are a helpful place to start. We may also need to visit to check the layout, access and connections before confirming a quotation. Send what you have and we will explain what else is needed.
Multiple appliances can be considered where the building’s heat demand and operating pattern make them suitable. The existing system, controls, space and proposed design determine the arrangement; more boilers are not automatically the right answer.
Agree the commissioning information, operating guidance and maintenance requirements for the installed equipment as part of the proposal. Identify who will operate the system and how the new plant connects with existing controls.

Two Vaillant ecoTEC Plus 64 kW boilers, a custom cascade frame and hydraulic separation for occupied offices.
View the project
A failing boiler replaced with a Vaillant ecoTEC plus 48 kW, hydraulic separation and associated pipework.
View the projectRelated support: Plant-room upgrades · Planned heating maintenance.
How we work
A boiler replacement needs more than an equipment choice. We review the connected plant, site access and building use, then agree any heating interruptions before work begins.
View the LTI Metaltech projectTalk through the building’s heating needs, existing plant and available access.
Set out the equipment, associated work and project arrangements in your quotation.
Agree access and shutdown arrangements with the people responsible for the site.
Installation range
Examples from Oxyplumb commercial installations, from twin floor-standing appliances to wall-hung cascades and complete boiler manifolds.



Useful to know
We discuss how the premises operate and agree access and any required shutdowns before arranging the work. Let us know about term dates, guest use or other restrictions at the enquiry stage.
We undertake commercial boiler work across gas, oil and LPG. Send us the details of your existing installation so we can discuss the appropriate next step.
The site address, a brief description of the work and photographs of the boiler and plant room are a useful starting point. Include any drawings or previous service records you already have.
The applicable requirements depend on the appliances, fuel, flue arrangement and building. BS 6644 addresses installation and maintenance of gas-fired hot-water boilers within its defined scope; IGEM/UP/10 addresses flued gas appliances in industrial and commercial premises. Applicability must be assessed for each project alongside the manufacturer’s instructions.
Leigh Sackett completed Ideal Commercial Evomax 2 training on 18 March 2025.
YOUR NEXT STEP
Speak to our commercial team about your site and the work you need.