1. Always ask for proof of Public Liabilty insurance.

To ensure your home is properly looked after, you must check that the company has valid and upto date Public Liabilty insurance. It will give you peace of mind in the event of problems.

2. Always get a quote or estimate in writing.
This will ensure you are both of the same page and understand the scope of work in great detail. This way you will know exactly what you are getting.

3. Once you've chosen a company or tradesman, ask them how they will protect your property.

Doing this will ensure that you're furniture and belongings are protected. Will they use dust sheets? will they use tape? will they use protective floor coverings? find out these details before work begins.
 

4. Never pay them the full amount up front!
If the company ask for a down payment this is fine. But alarm bells should be ringing if they ask for the full amount up front.

5. Always ask for references or reviews from previous projects.
This is always helpful when deciding which decorating company is right for you.