Tailored suits come in two flavours. Actually, one of them isn't tailored at all but such is the marketing bullsh1t nowadays.
Firstly, there are made to measure suits. These are genuinely made to measure with a choice of fine cloths. What you are paying for is the talent and expertise of the tailor, the cloth, the dye, the cut, and the hand made service. Expect more than one fitting which, of course, adds to the price. Expect to pay a minimum of £2000 in Saville Row for a made to measure, and the price rises from there. If you want an Italian look then Brioni is the place to go. But expect to pay a minimum of £4000 - £5000 for a custom Brioni.
Then there are the 'bespoke' suits. These are not tailored suits in the truest sense, in that often the 'tailor' (and I use that term loosely) will take your measurements and have a ready made suit altered to fit or will send your measurements to a factory where the suit will be made. Only one fitting is usually needed.
Avoid bespoke suits and instead go for a good off the peg suit and get it altered (if necessary) at a good alterations company. For £400 - £1000 you can find nice Paul Smith, Valentino, Cerruti (great cloth), Canali (great cut and cloth), Zegna and even Gucci suits.
Sleeve alterations are more difficult than leg alterations so make sure that the length of the sleeve fits well (you want a good half an inch of your shirt sleeve showing). Also, a tapered (at the back) leg alteration is a good idea with a little bit of hang.
Two button single breasted navy, charcoal or Prince of Wales check never lose style. Double breasted for the larger frame and more conservative look. For a more tailored look go for British designers (Paul Smith, etc) and for a more relaxed and less structured look go for Italian. Hugo Boss aren't as good as they once were, in my view.
There is a world of difference between the bespoke and the made to measure. One is genuine while the other is not.
For sure avoid this company (which advertises in The Telegraph and the FT of all publications):
http://www.sartoriani.com/
Edited to add: sorry, didn't answer your question exactly. You won't find a top tailor for little money. I don't know of any tailors in your area but I would think that even in Yorkshire you must be talking a grand for a made to measure. I guess you'd be offered bespoke as that seems to be a cunning marketing ploy. Top tailors = top dollar. And don't forget a good pair of shoes in the price too.
here are some pointers for people on a budget: 
