Business Information

Side View Of Van

Registered as a limited company in 2003, Harry Willis Limited is a small business that operates in domestic properties throughout the North East of England, installing and servicing gas appliances, including central heating.

With many years of ex-British Gas Service expertise, you can be sure of a prompt, reliable service.

Being a gas installer relies heavily upon safety. The business is registered with Gas Safe Register, (previously CORGI) which gives customers the assurance they need that they are dealing with a reputable installer, and ensures that work complies with stringent standards.

With full Public Liability Insurance, the company carries out work in a way that we would like it done in our own homes. Workmanship is fully guaranteed and only quality appliances and materials are used.

Honest, reliable and prompt

We will always try to keep to our arrangements and if there is an unusual reason why we cannot keep our promise, we will contact you as soon as possible, in advance if we know there is a problem.

We offer free estimates and advice, and cannot imagine how anyone could charge for giving a quotation!

Contacting Us

We can be contacted by telephone FREE on 0800 781 6854 but if you use a mobile, you can call us on 0773 918 5779. We can be very busy but if you leave a message, we will ring you back as soon as we can.

We can be contacted by email using the address shown below and we will reply as soon as possible

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News - Boiler Warranty

Usually we offer an 8 year warranty on Worcester Bosch boilers. We can upgrade the warranty to TEN years with the fitting of certain Worcester Bosch boilers along with several of their controls and their magnetic filter, which protects the boiler from sediment in the central heating system. more....


Have Gritish Bas been out and told you that your system needs power flushing? Well, you are not alone! A lot of people ring us and ask about power flushing, usually, asking how much we charge to power flush a central heating system.

8 out of 10 of the people who ask about it have been told by Gritish Bas that it is needed. Sometimes, power flushing would not cure the problem(s) these people are experiencing with their heating system. more....

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Contact us free on 0800 781 6854

Contact Us
0800 781 6854
0773 918 5779
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We install and service gas appliances, specialising in central heating installation.

We carry out Landlord (CP12) Safety Checks and can report on gas installations prior to home purchases.

Gas Safe Register

We are Registered with Gas Safe Register (previously CORGI) and believe that it is essential that customers understand how seriously we take this.

Link to Gas Safe Register Website

Please feel free to check our registration at the Gas Safe Register website