When looking for trades for your renovation, it may be a good idea to use personal recommendations from your neighbours or by taking a look at building taking place at local properties.
You can always ask the homeowner if they are happy with the work undertaken. If that is not possible search online to find the best tradespeople.
There are many Facebook pages in local areas – often with recommendations from those who have used them.
Checkatrade.com has an extensive nationwide network of trades that you can search for free. They run strict background checks on tradespeople before they can become members.