Call for a quote on 020 8640 1991

Alitherm Plus Door

logo_smartsThe Alitherm Residential Door takes its place alongside the Alitherm 47 Door, giving the option of a robust performance, domestic entrance door and an alternative to the Visoline light commercial door.


Fabricator & Fitter friendly; the new Alitherm Residential door is designed to be easier to manufacture and install. New adjustable hinges, lock keeps and additional sash passing clearance allow for greater on-site fitting tolerances.

  • New adjustable hinges and lock keeps
  • Single & double doors use multi-point locking mechanisms
  • Double doors feature dual lock mechanisms enabling handles on both sashes
  • Door sections & hinges are designed with added strength delivering robust performance
  • Internally beaded for open in and open out doors
  • Profiles are contemporarily styled with a modern, square-edge design
  • Low thresholds comply with Document M building legislation
  • Z/T sash sections allow for greater coverage and weather resistance
  • Tested in accordance with the requirements of BS 6375 Pt1 and achieved the following classification for weather tightness
  • Air Permeability 600pa
  • Water Tightness 600pa
  • Wind Resistance 1200pa


Product Type Doors
Material Aluminium Ployamide
Dual Colour
Thermally broken


Max width 900
Max height 2400
Max weight 80
Weather suitability
Acoustic suitability
Thermal suitability
Min Glazing 24
Max Glazing 32
Low threshold option


BS6375 Pt 1

Locking options


Frame options

Even leg
Direct Fix

Door options

Butt hinge



Building suitability

Light duty
Medium Duty