- October 5, 2026|
- Windows|
- sandymount_admin
Open a casement window and it’s easy to see why they’re such a popular choice with homeowners across Gloucester. Their simple yet effective design fills rooms with natural light and fresh air, while keeping your home warm and secure when closed. Whatever the style of your property, there’s a casement window to suit it. This guide covers the materials and finishes available, how they perform and what to expect from installation.
What are casement windows?
Casement windows are attached to their frame by one or more hinges at the side. They open outwards like a door, giving you a wide, unobstructed opening and clear views when closed.
Few window types are as versatile. Their classic look sits naturally on traditional cottages and period properties, while sleek aluminium designs give modern homes a crisp, contemporary finish.
The benefits of casement windows
Here’s why so many homeowners choose casement windows for their window replacement:
- Excellent ventilation: the full sash opens outwards, allowing a generous flow of fresh air into your living space
- Plenty of natural light: large panes of glass with fewer obstructions keep rooms bright
- Easy cleaning: outward-opening sashes make it easier to reach the outside of the glass, even on upper floors
- Ease of use: side hinges and a single handle make them simple to open and close
- Strong security: when closed, multi-point locking secures the sash firmly into the frame
- Aesthetic appeal: a timeless design that suits a wide range of property styles
Choosing the right material
At Sandymount, we offer casement windows in uPVC and aluminium, so you can choose the material that best suits your home, budget and style.
uPVC casement windows
Our uPVC windows are durable, low maintenance and cost-effective, making them a popular choice for many homes. Our uPVC casement windows are A+ rated, so they’re an excellent choice if your home’s energy efficiency is a top priority.
Aluminium casement windows
Our aluminium windows come from award-winning manufacturer Origin. They offer a modern appearance, superior strength and excellent energy ratings that exceed building regulations. Every Origin window also comes with a 20-year guarantee, giving you complete peace of mind for years to come.
Styles, colours and hardware
This is where you can really make your windows your own. Every casement window we fit is custom-made to your exact requirements, so you can match it perfectly to your home’s style.
- Flush casement windows: our flush sash windows, also known as flush casement windows, sit seamlessly within the frame for a clean, minimalist look
- A wide range of colours: choose from 25 finishes, including Anthracite Grey, Golden Oak and Cream White
- Woodgrain finishes: ideal if you want the warmth of timber with the low maintenance of uPVC
- Hardware options: handles from the Quartus Espag, Sparta and Virage ranges, in black, gold or silver finishes
A perfect choice for period properties
Many homes in and around Gloucester have period character worth preserving, and casement windows are a natural fit. Our flush casement windows recreate the look of traditional timber casements, while woodgrain finishes and heritage shades such as Chartwell Green and Irish Oak help them blend in with original features. If you live in a Cotswold village or a conservation area, our team can talk you through the casement styles and finishes best suited to your home.
Energy efficiency and security
Beautiful windows should perform and protect your home as well as they look.
Are casement windows energy efficient?
Yes. When properly fitted, casement windows close against the frame to form a tight seal, minimising heat loss and draughts. Paired with double glazing or triple glazing, they keep warmth inside, reduce air leakage and help lower your energy costs throughout the year.
According to the Energy Saving Trust, upgrading single glazing to A-rated double glazing can save around £85 a year on energy bills. With A+ rated uPVC casement windows, you can look forward to a warmer home and real energy savings.
Security you can rely on
Feeling safe at home matters. Our casement windows come with multi-point locking systems as standard, along with PAS 24 and Secured by Design accreditation, so you can relax knowing your home is well protected.
What to expect from your window installation
We keep the process simple and stress-free, with our own experienced team looking after every stage:
- Free consultation: we talk through your requirements, including materials, colours and hardware options
- Survey: we visit your home to measure every window accurately
- Made to measure: your new windows are custom-made to your exact requirements
- Installation: our skilled fitters remove your old windows and install the new ones with care
- Certification: we’re FENSA registered, so you’ll receive a FENSA certificate confirming your windows comply with building regulations
Get perfect casement windows for your Gloucester home with Sandymount
Casement windows offer the perfect blend of style, comfort and security, making them a smart investment for your next home improvement project.
Based in Cirencester, we’re proud to install casement windows for homeowners across Gloucester, Gloucestershire and beyond, backed by over four decades of experience. Whatever look you have in mind, our friendly team will help you find the right windows for your home. Get in touch today for a free, no-obligation quote:
- Enquire online
- Call us on 01793 230684
- Email windowsanddoors@sandymount.co.uk
Visit our showroom in Cirencester to see our range of windows
