Using the most advanced technology, William Duce Ltd provides a complete installation solution.

We will assess the project requirements and design an appropriate solution, meanwhile considering the client’s needs, usage, budget and environmental impact. Our team of advanced engineers have a breadth of expertise and knowledge within the areas of plumbing and HVAC, leaving them highly capable of accomplishing any project. We project manage every mechanical installation to trade standards and client’s expectations.

Our experienced team of engineers can work to identify any faults with your current equipment and are sure to get you back operating at optimum efficiency promptly. Afterwards, we can agree on a practical servicing schedule that works for your business, taking into account the critical nature of your equipment and the disruption that breakdowns can cause. A planned preventative maintenance schedule ensures you are getting the best return on your equipment and you know where to turn if your system goes down. 


We pride ourselves on building longstanding relationships with our clients, who have come to depend on our professional service and fast turnaround. It is our most considerable understanding that you face pressures in terms of financial and operational management. It is, therefore, our priority to work with you to reduce those concerns and build a dedicated service package suited to your individual business needs. 

So, why work with us?


We are advanced installers for various professional bodies such as Vaillant and Toshiba. We can offer you an extended parts and service warranty on new boiler and air conditioning installations, therefore saving you money long-term.

Industry Experience

With over 30 years experience within the plumbing and heating industry, we are extremely experienced in all areas of our type of business. We keep up to date on the latest industry news to continously expand our knowledge and expertise.

Energy Saving

We offer a range of renewable energy services and the latest controls to include BMS control panels. We strive to install only energy efficent systems.

Professional Job Management

To give our customers peace of mind we are able to professional manage any project. We can offer support from the offset with design and planning your project. Plus, after completing your project within your planned timescale, we can provide continued support with our service and maintenance contracts.

Highly Skilled Workforce

We are proud to employ a highly skilled workforce who are polite, professional and reliable. All of our employee's are trained to an advanced level and are very experienced within their trade.

High Trading Standards

We strive to implicate a professional infastructure within our business. We do so by carrying out health and safety policies and procedures, holding full public liability insurance and by being part of a various professional bodies within our trade. For large scale projects we provide necessary RAM's and O&M manuals.

William Duce Plumbing Heating hvac commercial air conditioning south yorkshire sheffield