WHY BUY OUR CHEAP SKYLIGHTS & ROOFLIGHTS N 20 year guarantee N Customer service N High quality items N Free delivery on everything N Free upgrade to triple glazed on most in stock sizes N Low u values N Safe and secure delivery N Very competitive prices N Can make any size N Wide range of skylights including fixed, walk on, electric and manual opening, anti slip, tinted N Full installation instructions N Bs standard toughened safety glass N Argon gass filled N Timber kerb with every skylights (mahogany kerb with opening skylights