Looking for beautiful slim line metal windows and doors?

by Laura

Met Therm manufacture the AG210 range offering the slimmest thermally broken ‘A+10 rated’, Part L complaint metal windows and doors available.

Perfect for restoration and renovation projects, replacement windows and new builds, our windows and doors are handmade to measure by our skilled craftsmen.

Recognising the distinctive and coveted features of steel windows and doors, the AG210 range offers a product which counters the issues traditional windows or period windows can create. Once installed, the range requires minimal maintenance and with its slim line profile and thermal efficiency, your home will be lighter, brighter and warmer.

We can ensure an excellent match for your home, achieving the traditional styling of the originals and providing a seamless blend of old and new. Once completed, your new windows and doors are almost indistinguishable from the original.


Our windows (and doors) can be installed direct to brick, stone or wood surrounds and we offer beautiful leaded lights, Georgian panes, horizontal bars and bespoke designs. We can replicate the small panes of Georgian windows or Cottage windows and we can create the classic lines of the 1930s window.


Met Therm’s stylish doors and door screens transform the look and feel of your room with slender sections and slim line framing for maximum vision and light. Remove the kicking panel and you feel as if the barrier between the garden and the interior has been removed.

Colour and Finish

Polyester powder coating provides a highly durable, low maintenance finish. With over 250 colours and a choice of finishes there are plenty of options to complement your design and project.

Complete your project by selecting hinges and handles to ensure an authentic replacement and personal preferences catered for.

Met Therm Windows

Met Therm is a family run business and our dedicated team draw on extensive experience within the replacement steel windows industry to meet each customer’s needs and focus on ensuring a quality service.

“Met Therm Windows offered us a five star service from start to finish. We are delighted with our AG210 windows and doors and will definitely use your company again – Thank You”. Mrs M, Hertfordshire

Met Therm Windows Contact Details

Telephone Number: 01730 89 47 45
Email address: info@metthermwindows.co.uk
Web address: www.metthermwindows.co.uk

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