Alitherm Plus Door Range

Our Aluminium range of entrance doors will impress your guests and keep out both the elements and unwelcome intruders. Alitherm doors are designed for use as open out or open in, single or double doors, internally or externally beaded with side-light and low threshold options. A wide range of colours and finishes are readily available. The latest addition to the successful Alitherm range of domestic doors & windows, the Alitherm Plus Door is suitable for all residential light commercial applications such as entrance doors to apartment buildings.


Alitherm entrance doors match the alitherm 47 windows they too have slim sight-lines giving more light into the home. The doors open in or open out. The alitherm plus doors have a higher level of security and have been designed for use in areas of higher traffic or in areas of higher exposure where the durability and reliability are required. Alitherm doors have a low threshold option.

Aluminium  entrance doorsAdjustable hinges and lock keeps
Aluminium entrance doorsMulti-point locking mechanisms for single & double doors
Aluminium doorsDual lock mechanisms on double doors, enabling handles on both sashes
window-casementStrengthened door sections & hinges
window-casementInternally beaded for open in and open out doors
Aluminium doorProfiles are contemporary styled with a modern, square-edge design
window-casementLow thresholds comply with Document M building legislation
window-casementZ/T sash sections allow for greater coverage and weather resistance

The Alitherm range of residential aluminium doors gives a high performing, robust domestic door at an affordable cost.The Alitherm range features adjustable hinges and lock keeps ensuring your door is completely adjustable and secure for any application.Available in Single and Double doors with multi-point locking mechanisms for increased levels of security.

All our door sections and hinges have been designed with extra strength in mind whilst maintaining a contemporary modern square-edge design. All residential doors are completely weather resistant and are tested to rigorous standards to ensure all our customers receive the highest quality glazing products.

Smart Doors Elegance Strength & Durability

Smart Alitherm aluminium windows and doors designed to be used, and to last, designed to reduce heat loss by the use of a thermally broken aluminium frame with a polyamide bridge. The polyamide material has a very high resistance to heat transfer from the inner face of a frame (i.e. inside a room) to the external face of a frame (i.e.outside). The thermally broken frames provide homeowners with windows and doors that have distinct advantages.

window-casementStrength & Durability
Provided by the use of Aluminium sections which gives structurally sound windows and doors for your peace of mind.
window-casementWarmth & Comfort
Benefits enjoyed by homeowners because Alitherm windows and doors are thermally efficient and contribute to a reduction in the cost of heating bills.
window-casementElegant Slim Sightlines
Features of the Alitherm windows and doors which are enhanced by an ovolo, chamfered or square profile edge appearance.
window-casementChoice of dual colour options
There are choices of finishes and colours, externally and internally

Range Of Colours & Finishes

A wide range of colours and finishes are readily available, standard ranges of colours include White, Black and Anthracite Grey; you can choose from any RAL colour and finishes are available, there is also a range of exciting ‘Sensations’ metallic colours, which offer a really exclusive and exciting option to your new window.

Smart Door & Window Systems
Smart Door & Window Systems Brochures

  • Smart Systems offer a range of doors suitable for public, new build, the architectural, commercial, and retail markets.The doors available are commercial hinged, commercial swing,patio, tilt and slide, slide folding, multi-track slide and automatic. Our doors are designed for use as open out or open in, single or double doors, internally or externally beaded with sidelight options for domestic and/or commercial applications.

    Doors are available with polyamide thermal barrier or as aluminium/PVC-U composite frames for high performance thermal efficiency.High security glazing, locking mechanism including security deadlock and hook bolts, dual colour options, excellent weather performance (BS6375 Pt 1) are some of the many special features of our door systems.

    We have over 30 years combined experience in the uPVC domestic and trade industry and we will happily advise you, and answer any queries you may have. Should you like a brochure posted to you, or should you need any help at all with selecting doors or windows, or assistance with choosing a conservatory please do not hesitate to contact us! We offer free no obligation surveys..

  • Free Impartial Advice. Free Estimates & Surveys – No hard sale no obligations.

  • windowsOur Commitment 10 Year Guarantee on profiles, hardware and sealed units
    windows-all-leading-brandsFree 12 month after sales service on all windows and doors (subject to inspection)
    window-casementuPVC maintenance on existing products.
    double glazingIndustry Approved Installers of UPVC Doors, Windows & Conservatories
    window-casementOver 30 years combined experience in the glazing industry.
  • We operate from a factory unit which is 3000sq feet fully stocked, offering uPVC doors, windows and conservatories. Get in touch for double glazed and replacement windows, doors and conservatories.