uPVC French Windows – Elegant Indoor-Outdoor Living

uPVC French windows bring a timeless elegance to any home, combining the classic look of traditional French casements with the outstanding thermal and security performance of modern uPVC profiles. Also known as French casements, these windows feature two inward or outward-opening sashes that meet at the centre without a central dividing post, creating a wide, unobstructed opening that beautifully connects your interior with a garden, balcony, or courtyard. Northern Storm supplies and installs premium French windows throughout Northern Ireland and the Republic.

The wide, unobstructed aperture of French windows makes them ideal for ground-floor rooms that open onto a patio or garden. They provide an easy, accessible walkthrough when both sashes are open, making them a popular choice for entertaining spaces and for homes where indoor-outdoor flow is a key design priority. When closed, the slim sight lines of our profiles maximise glass area and natural light.

Our uPVC French windows are manufactured with multi-chamber frame profiles that deliver excellent thermal insulation, helping to reduce heat loss and lower your energy bills. The frames are reinforced with galvanised steel for rigidity and longevity, and the sealed double-glazed units incorporate low-emissivity glass and argon gas fills as standard, meeting current Irish Part L building regulations for replacement windows.

Security features include multi-point locking systems with espagnolette bolts that lock the frame at three or more points simultaneously, along with shoot bolt top and bottom locking for the secondary sash. All hardware is manufactured from corrosion-resistant materials to withstand Ireland’s coastal and humid climate conditions for many years without degradation.

Colours, Finishes and Glazing Choices

We offer French windows in white, cream, anthracite grey, Irish Oak, Golden Oak, Rosewood, and a range of RAL custom colours on request. Glazing options include clear float, solar control, acoustic, self-cleaning, and privacy glass, allowing you to tailor the product precisely to your home’s needs and orientation. Decorative Georgian bar and leaded light effects are also available to complement period properties.

As a registered SEAI contractor, Northern Storm can help you access government energy grants when installing these windows as part of a broader retrofit project. Our friendly team will provide a full survey, product recommendation, and written quotation at no charge. Get in touch today to transform your home with beautiful, energy-efficient uPVC French windows.