Indeed its true that Howdens do not sell direct to the public, they specialise in supplying the building trade, my DH was a Joiner for over 50years, and fitted many kitchens including some very large commerical ones. Magnet usedto be his trusted Go-To brand, but when we were shopping for our own kitchen, he was very disapointed in their latest quality and choice.
CC, you mentioned that MDF is often better than natural timber, but the pitfalls of using it in a kitchen arethe effects that heat can have on it, especially next to oven doors and grills, over time the plastic coating deteriorates, moisture gets into the MDF core and causes it to weaken and swell. With a solid timber kitchen, you get non of this, the timber is usually Oak.or Ash renown for its strength and durability, its also totally paintable should you chosen colour go.out of fashion in a few years time, making a makeover a much cheaper option than replacing the full kitchen, something that is not possible with a MDF kitchen which is lightly to swell up with the actions of the chemicals in the paint on the plastic coating, and giving a poor finish. We did have some help to fit our kitchen from a young Joiner who DH helped to train just before he retired, lifting some of the full height wall cupboards was a 2 person job, and we had 21 units in all, all factory built and delivered fully assembled, but a word of warning, you do need plenty of space such as an empty Garage or conservetory to store all the new
components in whilst instalation is in progress. I dont envy anyone the mess and disruption kitchen fitting can bring, the worst bit being the stripping off of old tiles and replastering before any fitting could commence, it does look all rather super now though.