Flexible glazed openings
Spectus describes two- and three-panel configurations, with side panels possible for a broader glazed opening. We will check the arrangement against your actual sizes.
Buy sliding patio doors online from PVC Windows Online. Spectus uPVC patio doors are made to your opening and layout, supplied without installation and delivered throughout England and Wales.
Sliding doors connect living spaces to the garden without the swing space of a hinged door. Large glazed panels bring light into the room, while the sliding arrangement suits patios and narrower outdoor spaces. Send the overall opening dimensions and preferred sliding direction for a tailored quote.

Spectus sliding patio doors bring generous glazing and daylight into a room while opening without the swing space needed by hinged doors.
Tell us the appearance, operation and practical priorities for your project. We will confirm which available system and configuration is appropriate before you order.
Manufacturer information: Spectus sliding doors ↗







Images are illustrative of the product type. The exact style, colour and glazing are confirmed with your quotation.
Spectus describes two- and three-panel configurations, with side panels possible for a broader glazed opening. We will check the arrangement against your actual sizes.
Spectus lists energy-efficient glazing and multipoint locking, hook latches, anti-lift blocks and anti-jacking technology on its sliding door systems. Confirm the exact specification in your quotation.
Choose the sliding direction, pane arrangement, frame finish and handle colour. Low-threshold options are available on selected configurations.
The energy performance of a Spectus sliding door depends on the glazing, frame, pane layout and overall size. We will confirm the specification for your opening with your quotation.
Windows in England and Wales are commonly compared using the BFRC Window Energy Rating scale, which runs from A++ down to E. The rating achieved depends on the frame system, glass specification, spacer bar and the size of the unit, so it is confirmed per configuration rather than per range.
Building Regulations work to U-values (W/m²K) — the lower the figure, the less heat is lost. The figure for Spectus frames depends on the window or door system, glazing and overall specification.
Glass coatings, argon fill, spacer type, frame depth, the number of opening sashes and the overall size all change the final figure. Tell us your target rating and we will quote a specification to suit.
Spectus frames are available in white and a selection of coloured and woodgrain foiled finishes. The exact finish and any dual-colour option depend on the chosen system.
Colour availability, lead times and any surcharge for non-stock finishes are confirmed with your quotation.
For accurate pricing, provide manufacturing sizes or drawings, quantity, preferred colour, glazing requirements, opening directions and your delivery postcode. Confirm all final sizes with your installer.
Free delivery applies to orders of £600 or more within 100 miles of Gloucester. For projects more than 100 miles away, a minimum order of £1,500 applies. We confirm delivery arrangements with every quotation.