CALL NOW ON 0800 158 8055

Get a quick free quote

By entering your details in the fields requested, you signify your consent to our collecting and using your personal information to enable us to provide you with the services you select. Please read our Privacy Policy.

Casement Window

  • 'A' rated energy saving
  • Wide range of colours and styles to suit all properties
  • 10-year guarantee
  • Manufactured to the highest security standards
  • Provide complete weatherproofing against all the elements

0% Deposit

Buy Now Pay 2020

Flexible payments available

Casement windows in a range of styles and colours to suit all homes

Our uPVC casement window is our best-selling window style for good reason. It’s a comprehensive system available in bevelled and fully featured. As with all our products, our casement windows are manufactured from 100% lead-free material. With a wide range of colours, accessories and styles available, they’re sure to suit any property.

Like all our products, our casement windows are fully customisable to your requirements. From different colour options, to mock horns, to hardware and soundproofing. We specialise primarily in uPVC, however we also offer hardwood casement windows. Whatever you’re looking for, we can help!

We know that security is paramount, so our casement windows comply with enhanced security standards and are BBA and BSI accredited. In addition, all our windows have unique 14-point locking systems. They’ll help keep outside noise where it belongs – outside, and an A energy rating means they’ll save you money on heating bills.

It’s easy to transform your home with Emerald. If you’re looking for stylish new windows and doors, and you’re in Derby or Northern Ireland, get in touch today and request a free quote!

Benefits of Emerald Casement

Our casement windows will keep your home safe and secure. They conform to all British safety standards and have 14-point locking systems. We’re also part of the Secured By Design Initiative, and our windows exceed the requirements for this by 50%!
Energy saving
Save money on your energy bills! Our windows have an A energy rating and will improve the energy efficiency of your home.
Noise reduction
Keep unwanted noise outside your house where it belongs by opting for Emerald windows. Our uPVC double-glazed windows ensure that you can enjoy peace and quiet in your home at all times.
Our casement windows are manufactured from the highest quality materials that stand the test of time against all kinds of weather. They won't rot, rust or warp, no matter what the British climate throws at them!

Why choose Emerald

10 year icon

Over 10 years in the business

We are now into our second decade in the industry and are recognised as one of the leading home improvement companies in the midlands.

Security icon


We understand that our customer's highest priority is feeling safe and secure in their own home. That is why we manufacture all of our products with safety in mind.

Energy icon

Energy Saving

All of our products not only look great, but save you money on your heating bills.

Guarantee icon

10 Year Guarantee

We offer a 10-year insurance backed guarantee on all work we carry out.

Finance icon

Finance Options

We offer a range of flexible payment options.

Britain icon

Made In Britain

All of our products are manufactured within the UK and conform to British safety standards.

Read these reviews and more on our Derby Google reviews page, our Northern Ireland Google reviews page and our Thomson Local logo page.

We cover the Midlands and Northern Ireland
With headquarters in Derby as well as offices in Belfast, we are ideally situated for all of your home improvements needs.

Our Accreditations

When you buy an Emerald product you can rest assured that you are in the safest of hands. We are a member of FENSA, Trust Mark, The Guild of Master Craftsmen, the PWF (Plastics Window Federation) and many more. Being part of these initiatives ensures that Emerald operate to the strictest industry standards and that no corners are cut.

FENSA Guild of Master Craftsmen Plastics Window Federation Secured By Design Trust Mark
BSI BFRC Duraflex Pilkington

Ultion Locks

All of our doors come fitted with Ultion locks, which use cutting edge technology to provide maximum security for your home. Ultion has passed all major British standards test for security, Ultion meets the highest TS007 standard (3 star) without needing to be bolstered with support of cylinder protectors or extra secure door handles.

Your door may look great, feel solid, and have a great multi-point lock, but what’s the point if it can be disabled in a few seconds via an inadequate cylinder lock? Discover why Ultion is different.