The cause was unknown as there had been no sign of a forced entry and the power was off.
Rachel Ross, who has been involved with the Esk View Playgroup, said about 30 families who used the centre moved to temporary premises at the Eskdale Church where a Sunday School room was available.
"The community really came together," she said.
One posting on the playgroup's Facebook page summed things up.
"A big thanks to everyone who supported our local playgroup, either by attending our dinner at Valley d'vine last night, donating for our mystery envelopes, purchasing mystery envelopes, providing musical entertainment or making donations to help us get back on our feet after the fire."