RLM CASEMENT WINDOWS
Casement Windows
We all have different lifestyles, favourite colours and tastes, So we would like to show you that choosing new windows can be inspiring and that it is possible to design something that is not just functional, but becomes unique to you and your home.
Our casement windows are designed to any property. Our windows are manufactured in a variety of sizes, styles, colours and finishes to match your exact requirements. Casement windows are the most popular option for replacing old windows. We offer a wide range of options to suit any home.
Casement Windows by RLM: Bespoke Design Meets Performance
At RLM Windows, we specialise in bespoke casement windows for properties across the North East. Our made-to-measure casement windows combine traditional aesthetics with modern energy efficiency, offering homeowners a perfect balance of style, security, and thermal performance. Whether you’re renovating a period property or updating a contemporary home, our casement window range provides the flexibility to match your requirements. Casement windows remain the most popular choice for window replacement in the UK. They offer excellent ventilation, ease of operation, and a timeless appeal that suits both traditional and modern properties. At RLM, we take this classic design and elevate it with premium materials and comprehensive customisation options.
Why Choose Casement
Our bespoke windows are completely tailored to your exact requirements and are all fully made to measure. We offer a combination of high security, low maintenance, energy rated windows.
Along with a wide choice of unique designs. Our ranges can include sash horns, French casement, Georgian or astragal bar for style along with a variety of accessories including colour options, handle options, energy and thermal enhancements options. Visit our showroom or contact us for a free quote.
Compliance & Safety
Our Windows come as standard with an ‘A’ rating energy performance certificate.
All windows comply with current British Standards (BS 7950 and BS7413) and are approved by the BFRC (British Fenestration Rating Council) to prove that we don’t just say that our windows are ‘A’ Rated, it’s a fact! We use the high performance and premium Rehau Edge and Veka Halo window systems.
Design Casement Windows That Match Your Home
One of the greatest advantages of choosing RLM casement windows is the ability to fully customise every aspect of your design. We understand that every home is unique, and your windows should reflect that. Whether you’re looking for a contemporary aesthetic or a traditional period style, our extensive range of options allows you to create windows that are both functional and uniquely yours. From colour selection to hardware finishes, glass types to decorative glazing bars, you have complete control over the final design. Our team can guide you through each decision, or if you prefer a hands-on approach, try our free Window Designer tool to visualise your options.
Product Options
Our windows come in a variety of colour options and finishes.
Elephant Grey (Grained)
Basalt Grey II (Smooth)
Slate Grey (Grained)
Slate Grey (Smooth)
Anthracite Grey (Grained)
Anthracite Grey (Smooth)
Black Brown (Grained)
Midnight Black (Matt)
Simply White (Grained)
Clotted Cream (Grained)
Chartwell Green (Grained)
Pearl Grey (Grained)
Turner oak (Grained)
Irish Oak (Grained)
Golden Oak (Grained)
Walnut (Grained)
Rosewood (Grained)
Dark Oak (Grained)
Mahogany (Grained)
Ruby Red (Grained)
Racing Green (Grained)
Steel Blue (Grained)
The colours shown on our web site are for your guidance only, please ask to see physical samples for a true representation.
Antique Black
Black
Bronze
Chrome
Gold
Graphite
White
Antique Black
Gold
Chrome
Graphite
Antique Black
Gold
Chrome
Graphite
We offer a choice of Ovolo and bevelled profile options. This can often be influenced by your personal preference and taste. Our standard go to profile is Ovolo as this is the most popular option.
Ovolo Profile
Bevelled Profile
Arctic
Autumn
Chantily
Charcoal
Contora
Cotswold
Digital
Everglade
Flemish
Florielle
Mayflower
Minster
Oak
Pelerine
Stippolyte
Sycamore
Taffeta
Warwick
Rehau Windows
Rehau by RLM
Legacy Sliding Sash
Ultimate Modern Collection
Ultimate Heritage Collection
If you want to discuss colour, profile or hardware options please speak to the team on Call 0191 266 8788.
Why Choose RLM for Your Casement Windows?
When investing in new windows, you’re not just buying a product—you’re choosing a partner for your home improvement project. Here’s what sets RLM apart:
- Fully Bespoke & Made-to-Measure – Every window is crafted to your exact specifications, ensuring a perfect fit and finish for your property.
- A-Rated Energy Efficiency – All our casement windows come standard with ‘A’ energy performance ratings.
- Extensive Customisation – Choose from multiple colours, hardware finishes, glass options, and decorative styles (Georgian bars, French casements, sash horns, astragal bars) to create windows that reflect your home’s personality.
- Expert Installation & Aftercare – Our highly-rated team handles everything from design consultation to professional installation and ongoing support.
- Trusted Local Installer – With over 15 years of experience, RLM is one of the highest-rated glazing installation businesses in the North East, with excellent reviews on Checkatrade and Google. We are registered with FENSA and offer a 10 year insurance backed Guarantee for your peace of mind.
Frequently Asked Questions
RLM Windows is based in Newcastle upon Tyne and serves the North East region. We install casement windows and other products throughout Northumberland, Tyne and Wear, and surrounding areas. Contact us for details on your specific location.
Casement window prices vary based on size, materials, customisation options, and your property’s requirements. We offer free, no-obligation quotes tailored to your project. Contact us or visit our showroom to discuss your budget and get an estimate.
Yes! Our showroom is located at Unit 2, Armstrong Drive, Westmoor, Newcastle upon Tyne, NE12 7EB. You can view our casement windows and other products in person. Our team is available to discuss your project and answer any questions. Call 0191 266 8788 to book an appointment.
Casement windows open outward on hinges and offer excellent ventilation and ease of operation. Flush sash windows sit flush within the frame, creating clean lines that suit both modern and heritage properties. Our team can help you choose the right style for your home.
Why not visit our showroom where you can view our range of products in person. Our team are here to help talk you through any project.
Try Our Window Designer
Want to design and plan your own windows? Then try our free window designer.