Sheffields No1 Security Door Lock Specialists.

Sheffield Based Door Lock Upgrades is a sister Company of Window Doctor UK an Established Family run Business that Specialises in Double Glazed Window and Door Repairs.

Established over 20 years ago, our Business has rapidly grown as a result of word of mouth referrals coupled with High Quality Workmanship, Reliability and importantly, Trust.

As well as working for the general public, we also work alongside Estate Agents, Letting Companies and Landlords throughout Sheffield, South Yorkshire and neighbouring suburbs.

All of our Engineers are Fully Trained and able to solve any Double Glazing or Security problems no matter how big or small.

We are here to help you so if you have any questions, please don't hesitate to get in touch.

There is No call out charge for visiting you, no hard selling and all quotations are free!

We Look forward to hearing from you soon.

Contact us on 0114 2477676 / Mobile 07739705545 or

Email Door Lock Upgrades NOW for a FREE QUOTATION and more information about how we can help you to Secure your Home.