As carpentry & joinery was my starting point in building I can do any job within the maintenance of your home. I can supply and fit, doors, windows, 1st & 2nd fix, shuttering, sash windows the list is as long as your arm.
For windows and doors I use GRP, UPVC, Hardwood or softwood or a combination of both if you want it cheaper then softwood framing will be used, but it will not last as long as Hardwood but I always use a hardwood cill even for softwood projects as this is what takes most of the weather like the sash window below.
Sash windows are one of the more tricky joinery items to make due to the amount of bits and the construction method has a large part to play on how long it takes to make and how long it will it last. Most companies I have look at on the net always screw through the front and rear face and then insert a dowel. This method is a weak point for water entry and rot to start.
On my sash windows pictured left, there are only about 10 internal screws (depending on the size) and all timbers are jointed and glued so no holes in the faces. As I manufacture my own sash windows any size, type or style can be made out of Hardwood or Softwood if you would like softwood then I always use a hardwood cill as pictured left.
Below is a set of stairs I doctored from a straight flight to form a dog legged stair at the top of the flight, so the bathroom could be extended by 1 metre x width.