what about the relative qualities of the product, what about the guarantees, what about the time these companies have been in business- in life one tends to get what one pays for. You could say that it would be dreadful for the BMW salesman to demand three times as much for a top of the range brand new 5 series as the salesman from the Kia garage- but it is life and windows/doors as with cars come in a range of quality- its your choice as consumer where you place your business and how much you pay. Age had I suspect very little to do with this- �1,900 to fit 3 doors- take out fitting charges, VAT, salesman, surveyor, removal of existing doors- not that much left really for the product! Hope in 3 ytears time your partner, his grandparents are still as pleased with their doors as they are today. Anglioan have been in business 40 plus years- 50% of double glazing companies in the Yellow Pages today will not be there in 5 years time, what do you think those guarantees are worth then?