Water Heater Leak Repair TeamTankless units have no big tank to split, but they have plenty of places to weep: service valves, the heat exchanger, the condensate drain, and every threaded joint in a compact, hot cabinet. In the Lowcountry, the added wrinkle is condensate — humid intake air means more acidic condensate, and a clogged or corroded condensate line is one of the most common 'mystery leak' calls we run in Goose Creek. We service all major tankless brands and know exactly where these units hide their drips.
Don't wait — call us now at (833) 713-2101
Upfront flat-rate pricing, confirmed before any work begins.
Signs you need tankless water heater leak repair
- Water dripping from the bottom of the wall-hung cabinet
- Error codes paired with visible moisture
- White mineral crust around service valves
- A full or overflowing condensate neutralizer cartridge
- Reduced hot-water output with dampness behind the unit
How our tankless water heater leak repair visit works
Power and water isolated safely
We shut down per manufacturer procedure before touching anything inside the cabinet.
Leak point identification
UV dye and pressure testing find whether the source is the exchanger, valves, or condensate path.
Component repair
We replace failed valves, gaskets, and condensate components with OEM-grade parts.
Descale and verify
We flush the exchanger and run the unit through full firing cycles to confirm a dry cabinet.
Pricing
| Service | Price Range |
|---|---|
| Tankless leak diagnosis | $89–$149 |
| Isolation/service valve replacement | $150–$400 |
| Heat exchanger service or replacement | $400–$1,200 |
Representative market ranges for the Goose Creek area. Your flat-rate quote is confirmed before any work begins.
Built for Goose Creek conditions
With so much moisture already in Lowcountry air, tankless condensate systems here work overtime — we treat the condensate drain as a primary leak suspect, not an afterthought.
Every tankless water heater leak repair job in the Goose Creek area includes our standard corrosion survey — we check the fittings, valves, and connections our humid climate attacks first, and we tell you what we find before you ask.
Frequently asked questions
Do tankless water heaters leak less than tank models?
They leak differently — fewer catastrophic floods, more slow weeps from valves and condensate lines. Because the cabinet hides early drips, many owners discover tankless leaks late, so annual service matters even more.
What is the white crust around my tankless valves?
Mineral scale from hard water plus slow seepage. Lowcountry water leaves deposits that eventually compromise valve seats — a descale and valve service usually resolves it.
Why is there water under my tankless unit after a humid day?
Condensate. High-efficiency condensing units produce acidic condensate, and Goose Creek humidity increases the volume. If the drain line clogs, it backs up and overflows — we clear, re-route, and add neutralizer media.
Can you work on my specific tankless brand?
We service the major residential on-demand brands found in Berkeley County homes. Tell us the make and model when you call (833) 713-2101 so we bring the right parts.
Related services
Serving Goose Creek, SC and nearby communities including:
- Hanahan, SC 29410
- Ladson, SC 29456
- Moncks Corner, SC 29461
- Summerville, SC 29485
- Summerville, SC 29483
- North Charleston, SC 29406
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Same-day service across Goose Creek and the Lowcountry.
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