AG210 metal windows from Met Therm

Slimline metal windows that offer A+10 style and efficiency

We specialise in designing, manufacturing and installing beautiful A+10 rated energy-efficient, double-glazed metal windows. Our AG210 windows are approved by Conservation Officers for their slimline frames and traditional styling.

They recreate the elegant sightlines of classic steel windows without compromising on modern efficiency. Discover the benefits of the slimmest thermally broken A+10 rated metal windows.

Frames

Hinges

Glass and glazing

AG210 windows from Met Therm

Our AG210 metal windows are totally unique. Exclusively manufactured by Met Therm, AG210 are the slimmest thermally broken A+10 rated metal windows available.

Our windows are suitable as an alternative or replacement for steel casement windows including W20, W30, W40, W50 and SMW series windows.

Part L 2022 and Part Q/PAS 24 compliant windows

Compliant with Part L 2022 and Part Q/PAS 24 building regulations, our slimline windows are ideal for new build projects as well as renovations and replacements.

Benefits of our AG210 windows

We are able to provide a metal window that offers all the benefits of a modern window, with the look and style of a classic slim frame.

Energy efficient A+ rating
Elegant sightlines
Ideal for new builds and replacements
Install into stone, wood and metal
Customisable design and installation
Multipoint locking as standard
Polyester powder coated frames
Up to 10 years guarantee**

Frames

We provide a range of frame options suitable for new builds and replacement windows. The metal frames can be polyester powder coated in any standard RAL Classic colour.

If you want frames finished in different colours inside and out, dual colour is also available. All our frames come with a choice of finishes including:

Matt
Semi-gloss
Hammerite, subject to availability

View more examples in our gallery

Hinges

Met Therm’s AG210 metal windows are fitted with traditional fully working welded hinges and peg stays as standard.

This provides the traditional features so often required to achieve an authentic match in period and conservation replacements and renovations. We also offer sliding stays to maintain period features of original windows.

Welded hinges
Concealed friction hinges
Sliding stays

View more examples in our gallery

Glass and glazing

Our slimline windows retain the maximum amount of glass in all windows.

This means you get elegant sightlines and a better view. Our thermally broken frames are glazed using 24mm double-glazed argon-filled units and the latest thermally efficient glass.

This provides a BFRC A+10 rated window, making your home lighter, brighter and warmer.

Find out more

Speak to us today about your project

Whether you’re replacing traditional steel windows, renovating a period property or planning a new build, speak to us about how AG210 windows could work for your project.

Let’s chat

Features and specs

In keeping with a classic look and feel, our metal windows include traditional working features, including operational welded hinges.

Using flat or rounded leads in a range of widths, all soldered and antiqued for greater authenticity, we can replicate the features of your period windows.

For a more modern look, concealed friction hinges help maintain slim sightlines in a more contemporary style.

Energy efficient A+ rated performance
Elegant slimline sightlines
Ideal for new builds and replacement projects
Suitable for installation into stone, wood and metal
Customisable design and installation
Multipoint locking as standard
Polyester powder coated frames
Up to 10 years guarantee**

Thermally broken metal windows

Traditionally, the frames of older metal windows let more heat escape and more cold filter in. All of our A+10 rated metal windows are thermally broken.

This means our windows make use of a thermal break which acts as a barrier to prevent heat escaping and cold coming in. Thermal breaks also have the additional benefit of making your windows more soundproof.

More about AG210

What our clients think

“Our new windows have made a huge difference to the warmth and energy efficiency of the house; and aesthetically, it is exactly what we were looking for. We wanted the windows to look like the originals, and they do. In fact, we’ve had visitors who haven’t even realised we have had them changed – a perfect validation that Met Therm Windows was the right choice.”

Michael and Christine

1920’s home

“They were really quick and there was no disruption at all. The internal door took the longest and they did brilliantly with the windows because the houses around here are so old and the walls aren’t straight. But they made everything fit perfectly and the overall look is brilliant.”

“The quality of their work is amazing. The installers did such a good job, and they were so clean and tidy, nothing was too much trouble.”

Janet

Victorian mid-terrace

“The process of working with Met Therm was brilliant – and easy. They came out equipped with samples, did a site survey and took measurements off plan. They were also really helpful as they gave some great recommendations when it came to deciding how many openings to have.”

“Because we were both replacing windows and installing windows into a new build there were definite deadlines which had to be met, such as getting the property watertight. Met Therm happily liaised with our builder and pulled out all the stops to ensure this happened.”

Claire

1930’s home