There's a Warm Spot on My Floor (Bainbridge Island, WA)

What usually causes warm spot on the floor in Bainbridge Island

Start with a hot supply line leaking under the slab. Copper in direct contact with concrete or aggressive fill pinholes over time. Around Winslow and Fort Ward the housing dates from mid-century cabins, 1970s acreage and 1990s-to-2010s custom homes, which makes this the likeliest answer to warm spot on the floor.

Then a recirculation loop fault. On homes with a hot water recirculation pump, a loop running constantly can warm a floor without any leak. We've seen it near Fort Ward more than once, usually on mid-century galvanized on waterfront cabins.

And a hot line leaking under a crawlspace floor: a pinhole or failed fitting under the subfloor warms the boards above. Less common on shared easements through second growth, but we've found it near Lynwood Center.

First steps on a Bainbridge Island property

A 500-foot driveway run through clay can have a leak anywhere along it with no surface sign, and the only sane way to find it is a correlator at each end followed by the ground microphone.

First steps for warm spot on the floor near Port Blakely: don't open the floor at the warm spot before it's located. Confirm the warm area with your hand and note its edges. Close every fixture and watch the water heater: does it fire with nothing running? Then call; the rest is a locate through Kitsap Formation clay that swells and shrinks, not guesswork.

How we fix it

When it's the buried line, the fix in Bainbridge Island is interior water leak detection: we thermal and moisture, trace and listen through bluff soils above Eagle Harbor at the marked spot on sloped waterfront lots at Port Blakely, and mark. Pipe locator and tracer and the mini excavator ride on the first trip so it's finished the same visit.

Lynwood Center, Port Blakely, Eagle Harbor: near any of them, warm spot on the floor gets the same crew and the same equipment. Across the Agate Pass Bridge from the Kitsap side, day or night, with the mini excavator on the trailer for 300- to 600-foot private drives.