Hiring a company to move you is something that you may want to consider if you've got enough money to do so, and can't afford the time to do it yourself, or its impossible for you to pack and move.
Moving companies offer several great reasons to hire them - with different levels of service. From companies who will show up and move you and your belongings to companies who will pack, clean and move your belongings from place to place.
There are also more and more 'complete' package companies springing up, designed especially professionals - allowing them to move to their job, without the hassle of it all. These companies do it all - from finding a suitable house within your price range and requirements, to packing you and moving you in. Some even unpack at the other end for you.
You'll need to check any company out thoroughly before hiring them - each company should be vetted to your satisfaction, with viable references, if possible. You should also search for any complaints or comments about them online, and see what comes up. These recommendations should also contain information on whether they were prompt, priced fairly, or added additional costs.
You may also want to ask the company themselves for references, and information on when their cheapest and most expensive times are to move. You may find moving midweek to be far more cost effective, as weekends always carry a premium.
The company you eventually choose to move you will want to come out and inspect your home, to work out what they will be moving, and to provide you with a quotation, so you may want to de-clutter before they arrive - they will take an inventory, in some cases, with you and decide what your quotation will be. These companies will also provide you with a complete overview of their insurance - review it carefully so you're sure of what they cover and what you're liable for, should the worst happen.