Found this interesting article about gutters.
Time spent clearing weeds and debris can save hundreds, possibly thousands, of pounds from potentially avoidable building repair costs. Water backed up in the gutters may freeze and fracture your gutters and downpipes.
Click here to read tips from The Society for the Protection of Ancient Buildings.
Equally applies to modern homes too!
Call 01376 572046 or 07903 221374 if your windows are like this.