We contacted Mark to attempt to decrease the noise levels in our bedrooms which face onto a very busy main road and the result has surpassed our expectations.  We had to move the kids to the other areas of the house previously as they couldn't sleep with the traffic noise and now we have no issues at all.  The tint adds another bonus - blocking people from seeing what they shouldn't if we leave the curtains open!  As well as the fact that we have decreased our aircon usage as the cool air is no longer leaking out the single glazing.  We have been so happy with the final product that we actually installed additional windows and have a few more planned to try and better insulate the whole house.  The service was top level with Mark turning up exactly when planned, all communication was clear and response times were excellent and he even cleaned up the house when he was finished!  Overall, we are extremely happy with the results and can't wait to get a few more! Hamersley