About Us


Ronnie is the company director and has over 30 years experience.
The worked for the original Thermashield company until owners retired and in 2010 started on his own as Thermashield Windows & Maintenance Limited – same name but smaller company.

Based at their factory in Cumbernauld they are perfectly situated to serve the Central belt of Scotland. Meaning you’ll have peace of mind that you’ll be dealing with an easily accessible local company.

All windows, doors and conservatories come with a 10 year guarantee as standard. So, in the unlikely event of any issues, the Maintenance Division are on hand to carry out any remedial work.

Thermashield Windows & Maintenance also offer a wide variety of roofline and cladding options.

All installers are highly trained.

Maintenance Division are available to carry out a wide variety of repairs on all types of windows, doors and conservatories including:

  • Repairing/replacing smashed or broken glass
  • Changing door panels
  • Changing single to double glazing
  • Locks, handles & hinges
  • Conservatory repairs
  • Roofline repairs
  • Draughts re-sealing and more!

If you would like any information or a free quote, visit our contact us page and fill in your details.



Thermashield Windows & Maintenance Limited, 5 Deer Dykes View, Cumbernauld, Glasgow.  G68 9HN.
Tel/Fax: 01236 739939