Depends on the level of service you want really and will vary greatly from kennel to kennel. My ex runs a countryside kennels which is fab (not sure of your location).
You can expect to pay typically around £12.00 per night/day per dog (less if they share).
Heating is usually an additional cost and extra exercise also needs to be taken into account i.e can they be trusted off the lead to play free or will you require additional walks on top of usual 2 x daily jaunts.
I would guess approx £12.00 per dog per day but your best bet is to go on www.boardingkennels.org for better info. Hope that helps .
You could go for home board option, I actually charge £12 per night for a small dog and half for second and they stay indoors, I encourage owner to bring food so no extra charges there, and the exercise and heat (as it's the heating in the house
is no extra charge.
Not that im advertising....im always fully booked......but it may be an option for you.