Cracked Grout and Sealant
at the Kitchen Counter and Backsplash
The line where the counter meets the wall is one of the most common cracks in a house. It’s small, and it’s where water from the sink goes.
At 94 houses, Russ wrote up cracked grout or sealant somewhere on the counters, backsplash or tile. The single biggest title was “grout / sealant cracks” (37 houses), most of them at the kitchen backsplash. Thirteen more were new homes with cracks at the cabinet counters.
Shower tile has its own post, since water behind shower tile is a bigger story. This one is about the kitchen and the bathroom vanity.
The corner joint
Where the countertop meets the backsplash, two surfaces at a right angle move a little independently. Tile setting standards generally call for a flexible sealant at that change of plane, because grout is rigid and cracks. In many kitchens it’s grouted anyway, and a hairline crack opens along the whole run.
A Portland report described cracks in the grout or sealant of the cabinet backsplash and noted the moisture risk: water can get into the substrate and, over time, damage the wall or the countertop material.
New homes
Thirteen new homes had grout cracks at the cabinet counters. Framing lumber is still drying in a new house, and the walls and cabinets settle slightly. It’s normal, it’s small, and it’s the kind of thing to list for the builder’s warranty. The new construction vs. resale post covers what else typically shows up on a newer home.
Around the sink and windows
The sealant bead between the sink and the counter is the bigger concern, because it gets wet every day. When it cracks or pulls away, water runs down into the sink cabinet and soaks into the particleboard, which swells and doesn’t come back. Russ looks under the sinks for that.
In a Vancouver kitchen, grout or sealant was missing between the tile and the window over the sink. A window sill behind a sink catches splashes, and an open joint lets them into the wall.
Cracked tile and counters
Cracked tile and cracked counters came up too, often as cosmetic items. A Clackamas bathroom counter was cracked and partly pieced together from material that didn’t match. A Portland bathroom had cracked floor tile and grout. Cracked floor tile can sometimes point to movement in the floor below, which the squeaky floors post touches on.
Real Inspection Photos
Grout and Sealant Findings From Russ's Inspections
Counter and tile findings from Russ's recent reports.
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Cracked grout where the counter meets the backsplash. -
An open joint at a granite counter and tile backsplash. -
A grout crack at a counter in a new home. -
Missing grout or sealant between tile and a window. -
Cracked floor grout.
What Russ checks
He looks at countertops, backsplashes and tile for cracks, gaps and missing sealant, runs the faucets, and looks under sinks for leaks and moisture damage. He doesn’t remove tile or test grout. Cracked grout and sealant get a recommendation for resealing by a qualified person; signs of moisture damage get a recommendation for further evaluation.
- Run a fingernail along the counter-to-backsplash joint for cracks
- Look at the sealant bead around the sink edge
- Check the joint between the window sill and tile behind the sink
- Open the sink cabinet and look for stains or swollen particleboard
- On a new home, list cracks for the warranty walk
Cracked grout and sealant came up at 94 of Russ’s inspections, most often where the kitchen counter meets the backsplash. That corner moves, so a flexible sealant usually holds up better than grout. The sealant around the sink is the joint to watch most closely.
For the rest of the room, the guide to what to look at in the kitchen before you make an offer covers appliances, venting and plumbing. To set up an inspection, you can book online.
Counter and Backsplash FAQ
