Casement windows, commonly choice in the UK, are connected to their frames by side hinges. They are available in several different materials such as uPVC, wood, and aluminium, each with distinct advantages. They can be opened using a handle, which makes them particularly suitable for locations that are difficult to access. We warmly welcome homeowners from within Northamptonshire to visit our Rushden showroom and explore our extensive range of products, with expert advice available to help you find the right solution for your home.
Casement windows are the most common choice in UK homes and account for the majority of new window installations. The side-hinged design opens outward like a small door, giving excellent ventilation when open and a tight perimeter seal when closed.
We supply and fit casement windows in Northamptonshire across an 50 miles radius of our Rushden showroom, with the full range of uPVC, aluminium and timber casement options available. Every unit comes with double glazing as standard, multi-point locking, and a 10-year guarantee included.
A casement window is a single sash hinged at one side (or occasionally top or bottom) that opens outward. The sash sits within a frame, with the locking mechanism, hinges and weather seals built into the meeting rails. When closed, the sash presses firmly against the frame to create a tight perimeter seal, helping its thermal performance.
Operation is straightforward. A handle on the inside of the sash releases the multi-point locking mechanism, and either a friction stay or a handle opens the window to a controlled position. The window can be locked in any partially-open position for secure ventilation, or opened fully for maximum airflow and easy cleaning of the outside glass from inside the property.
The casement design delivers several practical advantages.
The tight perimeter seal when closed delivers good thermal performance, with with some VEKA uPVC configurations achieving U-values as low as 1.2 W/m²K with double glazing. The wide opening angle gives excellent ventilation, with many models opening to 90 degrees or more. The simple operation works well for all age groups, with the standard handle reach suiting both adults and older children.
The internally-beaded glazing means the glass can’t be removed from outside, which is part of what makes modern casement windows secure. Multi-point hook locking engages at multiple positions around the frame perimeter when the window is closed, distributing the holding force significantly more widely than the single-point latches older casements used.
Each material affects appearance, maintenance, performance and price differently.
These are the most popular choice in the UK because they balance thermal performance, security, low maintenance and affordable pricing. Multi-chamber profiles provide the insulation. The coloured or foil-wrapped finish requires no painting and little maintenance beyond an occasional wipe with soapy water.
Our uPVC casement windows are built on VEKA profiles with multi-point locking and internally-beaded double glazing as standard, with a wide range of colour options available. Wood-grain foils like golden oak, Irish oak and rosewood give the appearance of timber without the maintenance demands of real wood.
Typical fitted prices range from £400 to £800 per unit, depending on size, glazing spec and colour.
Aluminium frames can offer slimmer sightlines than uPVC. The strength of aluminium handles larger sash sizes than uPVC can while keeping the visible frame thickness minimal. Best for properties wanting maximum glass area and a contemporary aesthetic that uPVC can’t quite match.
The thermal break in modern aluminium profiles prevents the cold-bridging that older aluminium suffered from. Powder-coated finishes last 25 years or more without fading, with anthracite grey, matt black and warm white being the most popular contemporary colours.
Typically cost £700 to £1,200 per window fitted.
Timber casement windows give authentic wood character for period properties, listed buildings and conservation areas where the natural beauty of real timber is integral to the character of the building. Engineered timber construction provides improved dimensional stability and is available in the natural stains, oils and paint finishes that real wood is known for.
This option suits Victorian, Edwardian, 1930s and cottage properties, preserving the building’s original character and authenticity in a way that uPVC alternatives rarely replicate. The maintenance trade-off is periodic re-oiling or re-painting, particularly on exposed elevations.
Typical fitted prices range from £900 to £1,800 per unit.
Within the casement category there are, several variants, each offering distinct benefits to suit different property types and design priorities.
The standard configuration. The sash hinges at one side and opens outward like a door. Suits most window openings and remains the most common casement window style across UK homes.
The sash hinges at the top and opens outwards from the bottom. Often used above eye level where you want ventilation without the sash sitting in the way at handle height. Also referred to as an awning style in some technical contexts.
The sash hinges at the bottom and tilts inward from the top, used historically for secure ventilation. Less common in modern UK installations because tilt and turn designs deliver similar functionality with more flexibility.
A sealed window with no opening sash. Used where ventilation isn’t needed and you want maximum glazed area with the slimmest sightlines, common as side panels alongside an opening casement window or as decorative top lights above standard windows.
A casement variant where the sash sits level with the frame when closed, rather than sitting proud of the frame. Reproduces the traditional flush sash appearance of old timber windows in modern uPVC, aluminium or contemporary timber construction. Suits period properties and contemporary minimalist designs.
Two casement sashes side by side, often with a fixed mullion between them or with one sash flush against the other. Used for wider openings where a single sash would be too large for the opening proportions or practical operation.
The full RAL colour palette is available throughout the uPVC, aluminium and timber casement window range. The most-requested colours in the UK market are classic white, anthracite grey, matt black, traditional cream, Chartwell Green and heritage cream.
Black has grown rapidly in popularity for both contemporary new builds and period properties wanting a modern contrast against light render or red brick. Anthracite and charcoal grey remain popular choices for modern UK homes.
Dual-colour finishes give you one colour outside (matching the front elevation) and a different one inside (matching the room scheme). Wood-grain foils on uPVC give the timber aesthetic without the maintenance.
Every casement window we supply comes with double glazed sealed units as standard. Modern double glazing delivers good thermal performance, can reduce external noise, and helps reduce condensation compared with single glazing.
Triple glazed is available as an upgrade for properties on exposed elevations, near busy roads, or wanting maximum thermal performance. The extra glass pane and second air gap reduces heat loss by a further 25 to 30% compared with double glazing.
Low-E glass is standard across both double and triple glazed units. The microscopic metallic coating reflects internal heat back into the room during winter whilst still allowing beneficial solar warmth to enter during summer, improving thermal performance without darkening the glazing.
Soundproof acoustic-laminated glass is available for properties near busy roads, flight paths or noisy commercial neighbours.
Every casement window we supply includes multi-point hook locking, internally-beaded glazing, shoot bolts at the head and foot of the sash, and PAS 24 doorset certification available across the range.
For properties requiring the highest residential security spec, Secured by Design certification is available on the aluminium and premium uPVC casement windows. Lockable handles and removable handle keys are available across the range for households with young children or where added security is the priority.
We install casement windows in Northamptonshire within an 50 miles radius of our Rushden showroom, covering Northampton, Bedford, Milton Keynes, Kettering, Cambridge, Peterborough, Rugby, Hemel Hempstead, Wellingborough, Corby, Daventry, Towcester, St Neots, Higham Ferrers, Raunds and surrounding towns.
Installation is FENSA-registered, which means the work meets current UK Building Regulations and the certification paperwork is supplied at handover. The FENSA certificate stays with the property and is often requested during a house sale.
uPVC casement windows take around 4 to 6 weeks for delivery and fitting. Aluminium options take 6 to 8 weeks. Timber options take 8 to 10 weeks because of the timber finishing process.
Installation is usually a one- or two-day job for a full-house replacement, depending on the number being replaced and any structural work needed around the openings. Our in-house team handles the survey, removal of the old units, fitting of the new frames, weather sealing and final checks, with all waste taken away at the end.
The operating action, sightlines and finish quality are easier to assess in person before you buy. Our Rushden showroom (near Northampton) has full-size samples in uPVC, aluminium and timber construction within the popular colours and configurations.
Free no-obligation quotes and free home surveys within the 80 km installation area. Most Northamptonshire homeowners receive their initial quote within 48 hours of the survey.
Casement windows are side-hinged and usually open outwards, similar to a small door. They are operated with a handle and remain a popular choice in UK homes. This practical design suits many property types, offering good ventilation, a clean appearance and strong weather sealing when closed.
Prices depend on the frame material, size, glazing specification, colour and hardware options. As a guide, fitted uPVC options often cost around £400 to £800 per unit, aluminium around £700 to £1,200, and timber around £900 to £1,800. A home survey is the best way to get an accurate, itemised quote.
Yes. Modern designs can be highly energy efficient because the opening sash closes tightly against the frame, helping to reduce draughts and heat loss. When combined with quality double or triple glazing, Low-E glass and warm edge spacer bars, they can improve the comfort and thermal performance of a home.
Yes. They can provide strong home security when manufactured with multi-point locking, robust hinges, internally beaded glazing and high-quality handles. Security upgrades may also be available for homeowners who want enhanced protection, particularly on ground-floor openings or more exposed elevations.
Side-hung styles are hinged at the side and open outwards like a door. They are the most common configuration in UK homes. Top-hung versions are hinged at the top and open outwards from the bottom, making them useful for smaller openings, high-level positions, bathrooms or rooms where controlled ventilation is needed.
Yes. uPVC is a good choice for many UK homes because it offers good value, low maintenance, good insulation and reliable everyday performance. It is available in a wide range of colours and finishes, including woodgrain effects, making it suitable for both modern and traditional properties.
The main options are uPVC, aluminium and timber. uPVC is cost-effective and low maintenance. Aluminium offers slim frames and a more contemporary appearance. Timber provides natural character and is often chosen for period homes, heritage-style projects or properties where an authentic wood finish is preferred.
Homeefe supplies and installs casement windows from our Rushden showroom for homeowners across Northamptonshire and nearby areas. Our installation area covers approximately 80 km, including Wellingborough, Northampton, Bedford, Kettering, Cambridge, Peterborough, Corby, Milton Keynes, Rugby and surrounding towns. We offer home surveys and itemised quotes for replacement and new installation projects.
Get a Quote
By submitting your information, you consent to being contacted in accordance with our privacy policy.
Your Project Today...
Book your free quotation appointment with one of our local expert consultants who will:
Take advantage of our free consultation to understand how we can assist you.
Please fill in the following submission form to schedule your appointment. Upon receiving your form, our team will reach out to you to confirm the details of the appointment.
Thank you for considering our services.
We look forward to hearing from you!
Get a Quote
By submitting your information, you consent to being contacted in accordance with our privacy policy.
Homeefe Limited is a private limited company registered in England and Wales, company number: 12754601. Registered office is located at: 17 The Precinct, High Street South, Rushden, Northamptonshire, England, NN10 0QU
Copyright © 2026 Homeefe Limited
By submitting your information, you consent to being contacted in accordance with our privacy policy.
