With the Certass TRR Trade Frame Supplier Scheme, you can have unlimited WER labels in your company name, thus ensuring the promotion of your business identity in the marketplace.


As a trade frame supplier you may purchase your frames and glass units from different suppliers to take advantage of the best available deals. In doing so, you may be excluded from the Fabricators Window Energy Ratings (WER) labelling system.

The Certass TRR Trade Frame Supplier Scheme allows you to have unlimited labels which will ensure that you can best meet the needs of your business by easily changing suppliers and specifications, This will allow your business to lead and secure the best and most competitive deals available to you at any one time, meeting your customer expectations whilst placing you in a better position to take full advantage of new technologies.

The TRR WER label is designed to be consumer friendly, easy to understand with simple to follow graphics. The unique light energy transmittance and heat retention graphics assist in the sale of triple glazed units.

Often triple glazed units do not perform well with the WER rating methodology as light transmittance is reduced due to the third pane of glass. With our simple to follow graphics the beneficial effect of the improved U-Value is demonstrated clearly for all to see.