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, plus 19 years as an independant installer, 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!

Link to WAI Page

This Website

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News - Boiler Guarantee

Twelve Year Guarantee

We can upgrade the guarantee on certain Worcester Bosch boilers to TWELVE years with the fitting a magnetic filter to protect the boiler from sediment in the central heating system. This prolongs the life of a new boiler and attracts longer guarantee than offered by most other boiler manufacturers.

Even with other Worcester boilers, we can offer a 10 year guarantee. more....


A lot of people ring us and ask about power flushing, usually, asking how much we charge to power flush a central heating system.

Recently we have taken a decision not to offer a powerflushing service, but we can advise on alternative ways to try to improve a heating system's performance. more....

Card Payments

We can take payment by debit card, but for larger jobs we prefer bank transfer, or cheque, to avoid high card fees.

Square Card Payments

Contact Us

We can be contacted by telephone on our usual mobile number.

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.

Email Address Image

Gas Safe Register

We are Registered with Gas Safe Register 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