Request an engineer

If you are an existing customer with a valid guarantee you can now request an engineer online. This process is quick, simple and easy. Please fill out the form below and we’ll email you back with an appointment


  • We will respond to your request usually within 24-48 hours via email.
  • On the day of your appointment our engineer will call you when they are en-route to your address.
  • Condensation on your windows does not require an engineers visit – please watch our Condensation Video.

Free & chargeable call-outs

  • An engineer’s visit is free of charge where the product or installation is faulty.
  • To help you – and where possible – CSJ will advise you via email of any fixes or checks that can be done beforehand.
  • Where there is evidence of damage or misuse that is no fault of CSJ a charge will apply.
  • Chargeable Example 1: You believe your window is leaking. We visit and find the leak is coming from a crack in your rough casting.
  • Chargeable Example 2: Your door frame has been scratched by a parcel delivery. We visit to repair the scratch.
  • Charges: The minimum fee is £120 for areas within a 40 mile radius of FK2 9PJ. Out with this area up the fee is £200.