DO NOT USE!! Had 3 installations done by Safestyle and with a total of 5 issues so far and the windows have been in less than a month, I would not recommend. All issues caused by badly being installed in the first place and the response you get when phoning to get it fixed is disgraceful. One of my windows installed is also a fire exit (Installing a faulty fire exit Im sure is illegal but they done seem to care) and it doesn't actually open due to a loose latch on the locking mechanism getting stuck and when I phoned wanting it fixed Ive been given a 5 week waiting time. This is disgusting and a real shame as the windows themselves are very nice, just they seem to employ anyone who can turn a screwdriver. Quick enough to take your money and slow doing anything, just Bad workmans ship. Would not recommend employ someone who actually cares about their work and their customers.