I have lived in our 1938 house since 1977 (35 years). The outside walls are rendered and were painted white. I had the walls painted 3 times in the first 28 years, average about £1,000 plus gutter and fascia cleaning (UPVC).
In 2005 (7 years ago) I had The Wallshield Company treat the outside walls for £13,183 (first price: £23,059 second price: £16,479) because I agreed to have it done as soon as possible - the next week!
The two guys that did the job took 5 cold and wet days in January 2005, the amount of repair work to be done to the rendering was far less than the 'surveyor' had said, he had also said it would be two 'teams' and would probably take two weeks!
The finished job looked good AND it was 'guaranteed' for 15 years against chipping, flaking or peeling.
April 2010 I receive a letter telling me that Wallshield Limited is in "Creditors' Voluntary Liquidation".
Earlier this year I noticed 2 largish areas where the coating has lifted off the sidewall, another area which is flaking on the back-wall, and yesterday another area which is lifting on the front-wall. Hence I am online again to see if I can resolve this issue under the 15 year guarantee - a wall coating costing £13,183 lasting only 7 years - that is less than the £1,000 paint jobs I had previously had.
SAVE YOUR MONEY AND AVOID WALLSHIELD and probably other similar wall coating companies.