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Welcome to John Fredericks
The Ultimate Collection - John Fredericks


The Ultimate Collection provides you with the reassuring combination of Ultimate high security PVCu windows and doors along with industry renowned Ultraframe roofs. Ultraframe is the leading name in conservatories, orangeries, extensions and replacement roofs. They have been designing and manufacturing British made roofing systems and other building solutions for more than 35 years.

Performance Conservatory
Performance Conservatory

The Performance Conservatory features the latest super-insulated column technology which is five times more thermally efficient than standard brick columns. The inclusion of the decorative cornice gutter shroud gives a sense of grandeur to the conservatory externally, and internally, the plastered columns and insulated perimeter ceiling pelmet give a cosy feel to the room.

Designer Conservatory
Designer Conservatory

The inclusion of the plastered perimeter ceiling pelmet automatically improves thermal performance. With the option to make it wider to give the look and feel of a ‘real room’, particularly with the fitment of lights or speakers. 

Classic Conservatory
Classic Conservatory 

The Classic Conservatory incorporates the latest technologies in roof and glazing design and can be complemented with a range of optional extras. Choose from traditional or contemporary styles and bring the garden into the home by using full height glazing and french doors.

Contemporary Orangery
Contemporary Orangery

The Contemporary Orangery includes features such as the slimline ridge, super insulated columns, and hidden structural goalposts which create large openings for bifolds and inline patios. Its discrete strength keeps the ridge and the roof bars surprisingly slender. 

The structural goal post which is concealed carries the load over large door openings allowing a seamless transition between the inside and outside.

Classic Orangery
Classic Orangery

The Classic Orangery combines solid brick pillars and a performance glass roof with an internal insulated pelmet and a range of traditional finishing touches, including a choice of flat or curved decorative cornices, in a range of heights, to carefully conceal the guttering and match the rest of the property.

John Fredericks - Manufacturers of PVC-U Windows, Doors
Lantern Orangery

Unrivalled strength gives the Ultrasky Lantern slimline simplicity and an undeniable elegance, while the thermally broken ridge helps minimise condensation.

As beautiful as it is practical, the Ultrasky Lantern has a 25º pitch to all 4 sides, providing a stunning addition to any room – ideal for creating a focal point in a dining room or kitchen. Available in sizes up to 4m by 5.85m.


An Ultimate Collection Orangery offers an exciting and inspiring alternative to a conservatory, combining the light, open feeling of a conservatory and the tall, pillared grandeur of an orangery. Always warm, welcoming and cosy, thanks to Ultraframe’s advanced insulation technology and thermally efficient glass, an orangery gets its distinctive look from its lantern shaped roof that creates a real focal point.


The most solid and substantial way to add space to a property, an Ultimate collection extension from John Fredericks can also be the most thermally efficient. 

Not only are the Ultraframe solid roof systems certified to meet current Building Regulations, but they have also been fully fire tested, as opposed to relying on individual part ratings.

Ultraroof Extension
Ultraroof Extension

An Ultraroof Extension fuses the thermal properties of brick or super-insulated columns with the ultimate in lightweight tiled roof solutions. Ultraroof offers a magnificent vaulted plastered ceiling on the inside, enhancing the feeling of space. 

It’s finished on the outside with beautiful and authentic looking lightweight tiles, available in three colour finishes to match or contrast with the rest of the property. Insert full length glazed panels for maximum natural light and create a stunning feature. It’s no wonder that Ultraroof is the preferred tiled roof of 8 out of 10 homeowners.

Ultraroof can be configured into any shape or size and never requires a tie bar.  

Livinroof Extension

Ideal for a contemporary extension with wide bi-fold doors, the Livinroof Extension is the most versatile product on the market with the ability to be built in almost any shape or size for endless design options. 

The ‘hybrid’ roof design means you can insert shaped glass into the contemporary grey panelled solid roof, allowing the perfect amount of light to enter the room exactly where it’s needed most. What’s more, the roof is very well insulated, ensuring a room that can be used all year round.

Meine neue Küche
Ultrasky Flat Skylight

Ultrasky Flat Skylight benefits from a distinctive sleek, frameless edge-to-edge design with the option of blue glass, creating a stunning contemporary look that complements the style of the roof and allows the largest possible amount of light into the room. The Ultrasky Flat Skylight is frameless from the inside, giving a bright open feel. 

The fully insulated frame with ‘Warm Frame’ technology and high performance noise reducing glass means the flat skylight blocks out noise from the outside and is unrivalled in terms of thermal efficiency.

Performance Glass Roof

Conservatory roof manufacturing technology has come a long way in recent years. Advances in glass technology means that glass is much more thermally efficient, reduces sun glare and helps retain heat. 

Performance glass combined with brick piers or super-insulated columns gives the feeling of solidity, plus the thermal performance required for an extension. The columns can be specified as large or small and as either plain or fluted. High performance glass delivers impressive thermal efficiency. Discrete strength in every Ultraframe roof keeps the roof bars to a minimum for uninterrupted sightlines.

John Fredericks - Manufacturers of PVC-U Windows, Doors
Ultrasky Lantern 

With fewer bars and more light, the Ultrasky Lantern can be used on an existing flat roof, as part of a new build flat roof traditional extension or in a ‘deck’ type orangery. The Ultrasky Lantern floods light into the home using slimline bars. Sizes up to 5.8m x 4m.


Insulated Internal Pelmet
Insulated internal pelmet

The internal pelmet, available in any depth between 300mm and 1200mm means your customers can enjoy the light of a conservatory, the look of an orangery and the solid feel of an extension, all in one great value option. 

Super-Insulated Columns
Super-insulated columns

The Italian style of super-insulated columns adds a classic look. British engineering delivers five times the insulation of brick, which means you can have more glass and still meet Building Regulations. 

Roof Vent
Roof vent

A roof vent is one of the fastest ways of ventilating a conservatory during the warmest months of the year. Roof vents are available with a choice of manual openers or an electronic option with thermostat and rain sensor.

Lightweight Tile
Lightweight tile

The lightweight Ultraroof tile is manufactured to withstand extreme temperature variations. Tiles are available in 3 colours with an authentic slate design to complement any home.


Glass is generally classified in terms of the following performance criteria:

Light Transmission: Percentage of light transmitted through the unit. A low % can reduce glare from the sun.

Solar Rejection: The proportion of the sun’s heat that is rejected. Generally the higher the percentage the better the glass is. However, for North facing properties or ones situated in shade, solar rejection may need to be lower.

U-Value w/m2: A measure of how good the material is at preventing heat loss to the outside. The lower the figure, the more thermally efficient it is.

Self Cleaning: The glass is designed to remain cleaner for longer than conventional glass. The transparent coating on the glass harnesses the power of ultra-violet rays from the sun and rain (or water) to break down dirt and grime then wash it clean away.

UV Protection: The higher the percentage, the lower the possibility of furniture and fabrics fading.

Glass Choices

Our conservatories, orangeries and extensions are available in a range of stylish colours. From sophisticated ebony black, to the fresh feel of sage green, there is something to please even the most discerning customer. They can even choose one colour for the inside and another for the outside to complement their property and interior design.

Colour Choices 1
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Quality as standard

The ultimate collection glass is toughened, double glazed safety glass: 4mm glass – 16 mm . Argon filled cavity – 4 mm glass, with a warm edge spacer as standard. It is manufactured in specialist roof glass factories and guaranteed for 10 years.

Roof glass from the ultimate collection is available in blue, aqua, neutral grey tint and bronze self-cleaning. We also have the option of a privacy opal glass as well. We can achieve U-Values as low as 1.0 and solar rejection of up to 80%, depending upon the glass makeup. This means conservatories can be kept cool in summer and warm in winter.

Polycarbonate options for glazing are still available.

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