Dream | Design | Deliver

We are very sorry to learn that you have experienced problems with one of our products. Please fill in the form below and our service team will contact you as soon as possible. 

We do our best to deliver high-quality windows and doors without defects. However if, against expectations, defects occur during production, transport or delivery, please report any issue with your Rationel product as soon as you discover them.

We’ve made it easy to submit a complaint.

To submit a complain, you will need to supply the following details:

  • Order acknowledgement number
  • Product position number

Where can you find these numbers?

If your unit has glazing, you’ll find the numbers on the spacer bar between the glass panels. If it doesn’t have glazing you’ll find the numbers on the silver ID tag which is between the hinges when the unit is in the open position. Please see examples of these below.

And then, simply fill out your details in the form below, and a member of our team will contact you with a service number.

Location of the numbers


Current ID Tag


Silver ID Tag

Id Tag Image - cropped

*Please note our service team will need the information you provide in the form above in order to assist you in identifying and rectifying the issue.

If you would like to speak to a member of our team directly please call 01869 248181.