How to Insulate Around a Sink
LESLIE: Gwen in Wyoming, you’ve got The Money Pit. How can we help you today?
GWEN: Well, we’re working on a kitchen remodel and I’m looking at sinks. Right now, we have a stainless-steel sink that has three compartments in it. And it just doesn’t seem to hold the water hot for very long. And I was wondering, are different things more insulated or how could we insulate a sink?
TOM: Well, sinks are generally not insulated.
TOM: What should be insulated is the wall behind the sink. And if the wall behind the sink is not insulated, then the cabinet gets that much colder and then, of course, the water doesn’t stay warm in the sink very long. It’s an interesting question, though, Gwen, and I’m thinking about how could you possibly insulate a sink.
I mean one idea comes to mind is to spray the whole thing with expandable foam insulation, because it would be under the cabinet. And once you got it done – it would be kind of a messy job but once it was done, you’d be finished. Except that you would want to make sure you keep it away from all the plumbing connections because, eventually, you’re going to want to replace the faucet and you don’t want to have to cut through all that mess. Or you could just wrap it with some other type of insulation: one that’s perhaps encapsulated, like a batt insulation.
But I’ve never actually had anyone ask me how to try to keep a sink warmer but I see why it’s important to you, because it would make sense, as you’re doing the dishes, to try to keep that water as warm as possible. But I would first want you to concentrate in making sure the wall underneath there is properly insulated.
GWEN: That makes sense. So when we pull it all out and – we’ll double-check to make sure that wall has good insulation.
TOM: Yeah, that might be part of your problem. And if you get it warmed up – insulated and warmed up ¬- you may not have to deal with trying to insulate a sink.
GWEN: OK. Well, great. Thank you.
TOM: You’re welcome, Gwen. Thanks so much for calling us at 888-MONEY-PIT.