uPVC Casement Windows in Sheffield, Chesterfield & Dronfield
The UK’s favourite window, perfected with A-rated efficiency and advanced security for your home.
The UK’s Favourite Window, Perfected for Your Home
Casement windows are a timeless classic, and for good reason. Their simple, elegant design suits almost any property, from traditional cottages to modern new-builds. At Stay Warm Windows, we’ve perfected this classic design with modern uPVC technology, creating a window that offers unbeatable ventilation, security, and energy efficiency for homes across **Chesterfield, Sheffield, and Dronfield**.
The Clear Choice for Your Home
Discover why our uPVC casement windows are the smart choice for homeowners.
A-Rated Efficiency
The sash presses tightly against the frame for a superb airtight seal, preventing draughts and lowering your energy bills.
Superior Security
Fitted with multi-point locking systems and internal beading as standard, our casement windows offer robust protection.
Unrivalled Ventilation
Hinged at the side, they open wide to allow maximum fresh air into your home, creating a bright and airy feel.
Timeless Style
The simple, elegant design is highly versatile and can be customised with colours and hardware to suit any property.
The Anatomy of Our A-Rated Windows
It’s the combination of advanced components that delivers superior performance.
Multi-Chambered uPVC Frame
The internal chambers within the frame trap air, creating an insulating barrier that dramatically reduces heat transfer and improves thermal efficiency.
Low-E Glass Coating
An invisible metallic coating on the inner pane of glass reflects heat back into your room, preventing it from escaping and keeping your home warmer.
Argon Gas Filled Unit
The gap between the two panes of glass is filled with Argon, an inert gas that is denser than air and a much poorer conductor of heat, further boosting insulation.
Warm-Edge Spacer Bars
Unlike traditional aluminium spacers, our warm-edge bars reduce heat loss around the perimeter of the glass, preventing cold spots and condensation.
Design Your Perfect Casement Windows
From modern colours to traditional hardware, create a look that’s uniquely yours.
Popular Colours & Finishes
Anthracite Grey
White
Black
Cream
Chartwell Green
Golden Oak
Finishing Touches
Glazing Options
Customise your privacy with decorative or obscure glass, perfect for bathrooms. Add traditional character with elegant Georgian bars or leaded designs.
Heritage Hardware
Complete the look with our high-quality handles, available in a range of stylish finishes including classic monkey tail, teardrop, chrome, gold, and black.
Frequently Asked Questions
Here are answers to some common questions about our uPVC casement windows.
How secure are your casement windows?
Very secure. Our uPVC casement windows are fitted with advanced multi-point locking systems that secure the window at several points around the frame. They also feature internal glazing beads, which means the glass cannot be removed from the outside, providing a powerful deterrent to intruders.
Are your uPVC windows energy efficient?
Yes, all our windows are A-rated for energy efficiency as standard. The combination of the multi-chambered uPVC frame, warm-edge spacer bars, and high-performance double glazing creates an excellent thermal barrier that significantly reduces heat loss and helps to lower your energy bills.
How much maintenance do they require?
Virtually none. Unlike timber windows, our uPVC frames will never rot, warp, peel, or fade. They are incredibly durable and weather-resistant, and all they require to stay looking like new is a simple wipe-down with a damp cloth from time to time.
Hear From Our Local Customers
We’re a trusted local business with a 5-star reputation. Here’s what our local customers are saying on Google.
Get a Free Quote for uPVC Casement Windows
Ready to improve your home? Fill out the form below or call our friendly team on 01246 901107.