Welcome to William McAllen & Sons Ltd
William McAllen & Sons Ltd has an acknowledged reputation in Northern Ireland for quality, service and competitiveness.
This has been achieved and maintained by a strong and continuing commitment to customer satisfaction since the company's establishment in 1870. Today the hallmarked standards and principals of the company remain firmly bound to the same commitment.
Particular emphasis and value has been directed towards developing a fully trained, properly qualified, equipped and up-to-date skilled workforce in the direct employment of the company. This has provided a firm platform for which considerable mutual benefits can be derived for the customer in terms of contract performance and for the company in terms of efficiency.
The company is fully committed to the future and on-going development of quality contracting services in Northern Ireland.
William McAllen & Sons Limited has a customer base of over 2,200 customers with over 70 suppliers throughout the United Kingdom. The company has all the major accreditations within the plumbing and heating industry (including SNIPEF (Scottish and Northern Ireland Plumbing Employers Federation), Constructionline, OFTEC and Zurich for pressurized water systems), thus illustrating it’s professional ethics to you the customer. We offer to all customers a full 24 hours a day, 365 days a year emergency callout system. This callout system is managed by Senior Management within the company to ensure full and correct implementation of the system.
Whatever your need is, from a mere dripping tap to the plumbing of the most complex water systems, give us a call.

