Win-Dor

Win-Dor: double glazing design, manufacture and installation in Milton Keynes

Win-Dor is a double glazing specialist based in Milton Keynes, serving homeowners across the surrounding region. Founded in 1978, the company states it has built its reputation over more than 45 years on integrity, reliability and attention to detail. Its work covers the design, supply and installation of windows, doors, conservatories, roof lights and lanterns, and luxury orangeries, combining what it describes as traditional craftsmanship with modern technology.

The company is part of the Astraseal Group, which it identifies as one of the UK's leading manufacturers of windows, doors and conservatories. Because Win-Dor manufactures its own products, it states it maintains control over quality, design, price and delivery. All products are custom-built to order, and a specialist spray service is available to match a home's existing character and finish.

Windows: aluminium, uPVC, flush fit and heritage sash

The window range includes several distinct systems. Aluminium windows combine a slim profile with strength, while flush fit windows are designed so the opening sash sits level with the outer frame. Heritage sash windows replicate the traditional timber sliding sash style with modern performance, and uPVC windows offer a classic appearance with reliable performance. The Alitherm Heritage range provides a contemporary interpretation of classic steel-look windows.

Doors: bifold, sliding, entrance and internal

For doors, Win-Dor offers aluminium bifold doors and a uPVC bifold option for opening up a home to the outside. The sliding door range includes several named systems: INVISOGLIDE, with ultra-slim sight lines and a concealed minimalist finish; SLIDE 2000, designed for wide openings; SLINOVA, a slimline patio door for energy-efficient homes; ULTRAGLIDE, a flexible aluminium system with large sash sizes; and VISOGLIDE Plus, a premium aluminium sliding system. uPVC French and patio doors are also available to connect interiors with gardens.

Entrance doors include composite doors, uPVC entrance and rear doors, and premium aluminium Signature & Designer Doors. For interiors, AluSpace internal screens and doors are designed to improve both functionality and aesthetics.

Conservatories, orangeries and roof glazing

The conservatory service is bespoke, giving homeowners freedom to create a space suited to their property. Orangery-style roofs deliver the look of a traditional orangery with the benefits of a lightweight system, while replacement conservatory roofs upgrade existing conservatories with a solid, tiled system intended for year-round comfort. Flat rooflights are fixed, elevated roof windows with a sleek contemporary look, and roof lanterns are designed for flat roof extensions, kitchens and open-plan areas, combining elegant proportions with expansive glazing to bring in natural light. Bespoke orangeries are presented as a blend of elegant design, natural light and year-round comfort.

Design tools and the Milton Keynes showroom

Win-Dor provides an online composite door designer that allows homeowners to explore styles, colours, finishes, glazing and hardware options, and to upload a photo of their home to see how a new door would look in place. The company also operates a showroom in Milton Keynes, described as the largest glazing showroom in the city, with full-size displays of windows, doors, conservatories and orangeries. Visitors can compare finishes and designs and receive advice from the team.

Guarantees, energy performance and installation times

Every product installed by Win-Dor carries up to a 10-year guarantee as standard. The company states that its installations use A-rated double and triple glazing, multi-chambered profiles and superior seals to improve comfort and energy efficiency, and potentially lower energy bills. Installation times vary by project: most windows and doors are fitted in a couple of days, while more complex home extensions or bespoke builds take longer. A detailed schedule is provided and the team keeps homeowners informed throughout.

Coverage across Milton Keynes and neighbouring counties

From its base in Milton Keynes, Win-Dor regularly works throughout Milton Keynes, Bedfordshire, Northamptonshire, Buckinghamshire and nearby towns and villages. The company describes its team as friendly and experienced, with highly skilled builders and fitters, and an extensive product range manufactured in-house.