Technical specifications, colours and glazing options

Browse our brochures and tabs below for full technical specifications, frame colours, roof options and glazing choices. Everything you need to specify a new conservatory accurately is right here.

How we build our P-shaped conservatories

Every P-shape we manufacture starts with reinforced Eurocell uPVC profiles, designed for exceptional strength and excellent thermal efficiency. We work from your final measurements to deliver a bespoke solution that suits the available space on site.

Roofs are either fully glazed using Martindale's or Glasscraft units, or finished with a tiled warm roof system. Secure-by-Design locks are fitted as standard across the whole structure, and there are a variety of doors and windows to choose from.

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Glass or solid roof options

Choose a traditional glass roof for plenty of natural light or a roof for a more permanent feel. Both excel at thermal performance. 

Eurocell uPVC frames

We use Eurocell profiles throughout, giving exceptional durability, low heat loss and full compliance with current building regulations.

Internal finishes

Specify a plaster, timber or PVC cladding finish internally. Each option suits different architectural preferences and gives a fantastic finish.

Various uses, one structure

A P-shape works as a dining area and casual family space, a kitchen extension or a formal dining and lounge combination.

Key technical specifications

Everything you need to know about our range.

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SpecificationDetail
Frame materialEurocell uPVC, reinforced
Roof U-value (Therma-Roof)Around 0.16 W/m²K
GlazingDouble or advanced triple glazing systems
Glass supplierMartindale's (Blackburn) & Glasscraft (Leeds)
Roof optionsGlass, Therma-Roof, Solar Frame solid roof
External roof finishMetrotile Alu-Zinc, 40-year guarantee
HardwareTotal Hardware, Secure-by-Design locks
VentilationManual or electric centre pivot roof windows with rain sensor
ColoursAnodised, single or dual colour finishes
ComplianceCurrent building regulations, LABC-tested roof systems

Glazing and security as standard

We supply double glazing as standard with advanced triple glazing systems available on request, using sealed units from Martindale's and Glasscraft. Centre pivot roof windows can be added for natural light and ventilation, with manual or electric rain-sensor options. Secure-by-Design locks are fitted throughout.

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Large white P-shaped glass conservatory extension built onto the rear of a brick house with a landscaped garden and patio furniture.

Frame colours

Our Eurocell uPVC profiles are available in a wide range of finishes, including white, anthracite grey, black, cream, chartwell green and woodgrain effects. Dual colour options let you match interior and exterior tones.

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Irish Oak

Irish Oak

EUROCELL agate grey

EUROCELL agate grey

EUROCELL Chartwell gren

EUROCELL Chartwell gren

EUROCELL anthracite grey

EUROCELL anthracite grey

EUROCELL black ash

EUROCELL black ash

EUROCELL golden oak

EUROCELL golden oak

EUROCELL white ash

EUROCELL white ash

EUROCELL dark red

EUROCELL dark red

EUROCELL steel blue

EUROCELL steel blue

RAL option

RAL option

Download our brochures

Download our brochures for full U-values, glazing data, roof specifications and colour swatches. Useful for site surveys, client meetings and accurate quoting without having to wait on a call back.

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Two rooms, one conservatory

A P-shape combines a Victorian or Edwardian conservatory with a lean-to, giving you a characteristic bay front on one side and a longer extended living area on the other. The dual usage potential works well in larger properties, creating two distinct areas for different activities under one roof.

Our Eurocell uPVC frames offer exceptional strength, exceptional design flexibility and the added benefit of exceptional insulation. Paired with sealed units from Martindale’s and Glasscraft, your clients get a new conservatory built to last with excellent thermal efficiency.

  • White glass conservatory built onto a brick base set in a gravel garden surrounded by potted plants.
  • High-angle view of a large grey P-shaped conservatory extension attached to a stone country home next to a paved patio.

Why trade installers choose Alpine

With approaching 80 years of combined industry experience between Peter and Richard, we know what trade fitters need. We’re a family-run manufacturer based in Morley, Leeds, supplying installers primarily across Yorkshire, Selby, Ripon, Harrogate and York, but we work across the entire UK.

You’ll get same-day responses to trade enquiries, a quote within 24 hours and typical delivery inside two weeks. Whether it’s a single frame or a full P-shape, we treat every order with the same care and attention.

P-shaped conservatory FAQs

Common questions from trade customers about specifying, ordering and installing our P-shaped conservatories. Need something not covered here? Call our team on 0113 531 3148.

How we work with the trade

Our Process

Initial quote

Send us your sizes online or over the phone. We turn most trade quotes around within 24 hours, and there is no obligation to proceed.

Conversation

We talk through the priorities for you or your client, be it design, thermal performance, security, colour finish, glazing, or locking.

Manufacturing

We manufacture in-house at our Morley facility using Eurocell uPVC profiles, DoorCo composite slabs and Alunet aluminium systems. Typical lead time is two weeks.

Bespoke build, testing and supply

Every frame is made to your exact sizes and quality-checked before despatch. Supply only as standard, full installation available on request.

What fellow trade professionals say about us

Honest feedback from the installers, builders and double glazing companies we supply day in, day out.

"Had both front and back stable doors fitted recently, and I have to say the men that came to fit them were really good, pleasant, efficient and did a great job! I am rea...

Carol Marshall

Google
"I can’t thank the team at Alpine enough for all of the hard work on your build. They were great from the start, being really helpful through the quote process and in adv...

Kate Oakes

Trustpilot
"We recently renovated a small cottage and needed to consider the traditional look and feel of the property, Alpine Windows and Doors were brilliant, listening to our req...

Tom Crowe

Google
"Excellent service from start to finish. They made the process from colours to design easy, nothing was too much trouble. Lovely polite staff and fitters. Fitters turned ...

Sarah Wood

Google
"Peter at Alpine has done the windows and doors at both our offices and my home. The service was very professional, fast and competitive price wise. I had a combination o...

SMILE Air Conditioning

SMILE Air Conditioning

Trustpilot
    A modern dining and living space featuring floor-to-ceiling dark frame glass doors with built-in blinds overlooking a backyard garden.