Where dogs are part of the family
Below is a list of expectations as defined by the British Dog Groomers Association.

A high standard of work that takes into consideration your wishes and which is compatible with the type and condition of your dogs coat. However, remember that a well behaved dog can be bathed and groomed much quicker and more successfully than one that is difficult to handle.
A good knowledge of breed styles, breed standards and with sensible ideas about customising styles to suit your dogs lifestyle and your ability to maintain the style easily between visits to the grooming room
An understanding of behaviour and health issues. These may require special techniques and as a result may increase the time spent in the salon
Advice on coat care at home, suggesting appropriate brushes and combs to ensure that the coat is kept in good condition between visits to the salon.
Premises that have a relaxed atmosphere, are insured, clean and safe.
A good groomer will spot obvious health problems such a skin disorders and infections and advise you to seek veterinary attention where necessary
Grooming rooms provide a range of other services from nail clipping to ear cleaning. You should be told what the overall cost will be and the cost of any extras that your dog will need.
A dog that has not been left too long between grooms. If your dog has a matted, knotted or tangled coat it will take much longer. The cost will be greater and most importantly, the dog will be much more stressed. A matted coat can hide wounds, skin problems and parasite infestation.
Understanding that while all groomers love dogs (they would not groom them otherwise) and would not harm them, dogs do not always understand that keeping calm and still is in their best interest. Clippers and scissors are sharp, dogs claws are often black which makes it very difficult to locate the quick when trimming and although minor injuries are not common, they do happen occasionally. One of the advantages of using a groomer who is a member of the British Dog Grooming Association is that the Pet Care Trust can be contacted in any dispute and undertakes to provide independent adjudication if required. However the Trust has no authority or responsibility if the groomer is not a member of the British Dog Grooming Association.
Most coated breeds will require full grooming about once every four to six weeks but even short coated breeds can benefit from a wash and brush up occasionally to remove dust and dirt.
Care and attention to health and hygiene
Love and respect
Firm but gentle handling
To be kept safe