I just received a recommendation for Winter Harbor Veterinary for our lab... But that may be further than you wish to drive.
Can't recommend a groomer, but I recently visited Alton Bed and Biscuit (
www.altonbedandbiscuit.com) as we will have to board our lab from time to time. We had a good visit and liked the establishment . It will be convenient for us on our way to Boston or other points south.
I will be visiting Lakes Region Pet Resort (
www.lakesregionpetresort.com) so that we have a a choice in the future.