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Contact Thermguard F J Nash Double Glazing Ltd in London

If you require any further information, do not hesitate to contact us


F J Nash Double Glazing Ltd
1494 London Road
SW16 4BT



020 8764 3255 / 020 8679 2588


07970 946 251


020 8764 1343

Opening Times

  • Mon to Fri: 9:00am - 5.30pm
  • Sat: 9:00am - 1:00pm
Registered as a limited company in England and Wales under company number: 02919591

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For further information on our double glazing services, call us on
020 8764 3255
07970 946 251

On May 25th 2018, the government are bringing in new General Data Protection Regulations (GDPR) so we need to inform you of the following information:

We collect your personal data when you book a free no-obligation quotation.

This data is not passed on to any third party and is only used for the purposes of providing information as requested by the user. If you decide to go ahead with us as your installer, we may disclose your personal information should the work be carried out and covered by an insurance backed guarantee and entered on FENSA. In this instance we will share the details with FENSA and Quality Assured National Warranties. This is for the purpose of fulfilling the requirements of the Competent Person Scheme for self-certification under the current Building Regulations.

Personal data includes your name, address, telephone number and email address. This data will be retained on file for the lifetime of the guarantee, ten years.

We do not share your data with any other third parties.

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