Stormsure Energy+ Casement Windows

JELD-WEN Stormsure Energy+ windows are our most energy efficient windows. They offer impressive thermal performance and robust protection against the elements.

JELD-WEN Stormsure Energy+ Windows

JELD-WEN Stormsure Energy+ windows are the ultimate combination of terrific performance and luxurious aesthetics. The attention to detail on the Stormsure Energy+ windows is second to none, made from beautiful softwood timber with pinless timber composite beading for a polished finish. With a wide variety of colours and finishes available, you don’t have to sacrifice style when choosing wood stormproof windows. What’s more, you can also pick between a selection of glazing bar designs, should you want to create a heritage look for a period property.

A+ Rated Energy Efficient Windows

Our JELD-WEN Stormsure Energy+ windows are A+ energy rated windows, earning this through their impressive performance. They are the most energy efficient windows in our range, providing top thermal and sound insulation thanks to quality triple glazing. If you are looking to reduce heat loss through windows, then the Stormsure Energy+ range is a fantastic choice, offering U-values as low as 0.8W/M2K. Not only will energy efficient windows help you cut down your energy bills, they can also make your house greener by improving insulation and reducing energy usage and heat loss.

As with the JELD-WEN Stormsure casement windows, the Stormsure Energy+ range are robust, weatherproof windows. If you live in a coastal or stormy area, you’ll know that your home can be subject to a battering from the elements. The sturdy design of JELD-WEN’s Stormsure Energy+ windows combined with strong triple glazing gives you the protection your home needs to weather any storm!

If you are looking for robust stormproof windows with fantastic energy performance, JELD-WEN Stormsure Energy+ casement windows are a great choice. Simply get in touch with our team with any enquiries.

Free & Fast Delivery to UK Mainland Addresses!

With one of the fastest lead times available in the UK, you’ll get a free and quick turnaround on your made-to-measure windows. Get a quote today!

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Why Choose High Performance Stormsure Energy+ Windows?

Thermal Efficiency

These high performance windows offer an almost unrivalled thermal efficiency. Crucial for those biting winters!


JELD WEN triple glazed windows provide robust protection with safe & secure designs.

Fully Guaranteed

Long and comprehensive guarantees ensure you get the best from your windows for many decades. Quality is assured and integrity guaranteed.

Product Information

  • Materials: engineered softwood
  • Bar designs: no bar, Victorian bar, cottage bar, horizontal bar, Deco bar, all bar
  • Colours: all RAL colours available
  • Hardware options: polished chrome standard, also white, black, satin chrome, bronze, gold, antique black
  • Security options: Secured by Design optional, Approved Document Q/PAS 24 certification optional
  • Ventilation: recessed flush fitting vents as standard

Our JELD-WEN Stormsure Energy+ windows offer robust protection from storms and inclement weather. Featuring triple glazed glass with a black warm edge spacer bar as standard, a multi-point locking system is built in with projecting hinges. The factory glazed windows are completely CE marked and premium, FSC Chain of Custody certified timber is used throughout the range.


  • Window sizes: standard sizes and made to measure
  • U value: 0.8 – 1.0W/M2K
  • Window energy rating: A+ and B (BFRC)
  • Glazing options: triple glazing, 36mm Low-E insulating 
  • Acoustic performance: up to 40dB
  • Air permeability class: class 4
  • Exposure rating: 2000pa
  • Sill size range: 158mm standard, also available in 93mm stub sill, 67mm flush, 133mm, 183mm, 208mm

Help Needed?

Don’t hesitate to get in touch if you want to discuss any of our products. We can help you with any queries you may have or you’re welcome to visit our showroom and browse our range in person!


01205 363 999