I had a double sash window in my old Edwardian house i had bought that had a broken spring and so would never stay open at a certain point and also was very difficult to even open..almost jammed up. Then one day I forced it a little to shut and the whole thing smashed down luckily no glass was broken. I called Greg and he came the very same day..a Saturday..remarkable! He didn't have the special British part/cord length required that day but had to order it in. But he did repair it so at least the window could freely open and close with hardly any effort .. the promised he would call me when the part came in. I was so used to some trademen never returning I must say I was dubious. But true to his word Greg called and returned to instal the correct length. Im so grateful. Super friendly and reliable. Thankyou Greg. I will get him to instal this in my other window also..amazing ..you just need a finger to lift it! Perfect!

Approximate cost: $250