Maintenance Tips

Callisto uPVC windows and doors require minimal maintenance, however to ensure that your new windows and doors retain their pristine appearance you should bear the following tips in mind.


One of the major benefits of uPVC Doors is that they're virtually maintenance free. uPVC is an extremely hard-wearing material which never rots, flakes or needs painting. In fact to keep your uPVC doors in perfect condition all you need to do is give them an occasional wipe down with a damp cloth and some soapy water.

Abrasive cleaners and dry cleaning with a duster should be avoided. Cleaning solutions and polishes that contain solvents or thinners should not be used as they can damage the frames and seals.


uPVC windows are designed to close very tightly and conserve energy and will, under normal circumstances, prevent condensation.

However, where humidity levels are high, condensation may occur on cold surfaces. This can easily be solved with correct ventilation. Windows should be opened on a daily basis sufficiently frequently to allow the moist air out and fresh air in. Your new windows will also be fitted with trickle vents which aid ventilation.


Handles and Hinges

All moving parts of fittings should be lightly oiled once or twice a year to ensure that your uPVC windows will always open smoothly.


  Aluminium Wood uPVC
Durability and long life
High strength from steel reinforcement
Adaptability for architectural requirements
Completely maintenance free
Eco - friendly
Provide thermal insulation
Suitable for extreme seasons
100% recyclable
Coastal areas weather resistance (MOISTURE)
Termite resistance
Pollution resistance
Ageing resistance
Wind resistance
Corrosion resistance
Sound resistance
Fire resistance

Advantages of uPVC

  • One window, many home improvements
  • Freedom from noise, dust and pollution
  • Monsoon proof to withstand torrential rains
  • Bright and airy rooms
  • Specially engineered windows to withstand strong winds: no rattling and whistling
  • An uninterrupted view of the world outside
  • The merging of balconies and rooms: more space
  • Energy conservation: reduced air-conditioning and heating costs
  • uPVC is a natural low heat conductor and aids to provide a fire-safe living
  • uPVC is resistant to pollution, concentrated and diluted acids, alkalis and fatty acids
  • uPVC meets the highest climatic requirements to satisfy the demands of modern living
  • Minimal maintenance
  • High Security: multi- locking systems available

Value for money

  • Callisto Windows pay for themselves
  • A flawless finish: superior aesthetics
  • Attractive style and finishing
  • Improved appearance of your property
  • Keep your home safe and secure
  • Help keep energy bills lower
  • Watertight, airtight and draught proof
  • Add elegance and quality to your home
  • Freedom from maintenance
  • A lifelong investment

What we offer