Crews on call now, 24 hours a day

Navien Tankless and Boiler Leak Cleanup in Kirkland: 24/7

Navien makes condensing tankless water heaters and combi boilers that heat both your water and your home. That means more pipes, more connections and a condensate drain, all usually packed into a closet, garage or basement wall. When a Navien leaks, we provide emergency water damage cleanup 24 hours a day with same day crews in Kirkland, WA, drying floors, walls and any space below.

Call (425) 592-3603 Get Navien leak cleanup

Tankless and combi units
Condensate overflows
Same day crews
Answered 24/7

Independent restoration company. Not affiliated with, endorsed by or an authorized service provider for Navien. We clean up water damage; we do not repair or install water heaters or boilers.

Navien tankless unit with a condensate neutralizer overflowing onto the floor

Water heater or heat,
we dry both

What is the condensate neutralizer, and why does it leak?

Condensing Navien units make acidic water as they run. A neutralizer, a small canister of minerals on the drain line, raises the pH before it goes down the drain. If the neutralizer or its line clogs, cracks or is not connected, that water spills onto the floor. A full, steady stream from the condensate hose can also point to an internal problem. Either way, shut the unit off and call a qualified technician, then call us for the water damage cleanup.

Navien leak points

Where Navien units leak most often

Condensate system

Neutralizer, trap and drain line can clog or crack and overflow.

Relief valves

Water or heating relief valves can open from high pressure or wear.

Fittings below the unit

Water, gas and heating connections crowd under the cabinet.

Recirculation lines

Units with built-in recirculation add a return line and pump.

Heating loop (combi)

Combi boilers can leak from the space heating side, not just hot water.

Heat exchanger

Internal leaks can drip from the bottom of the cabinet.

Combi boilers

Two systems, one box: what can leak on a Navien combi

A combi boiler runs your home's heat and your hot water. Leaks can come from either side.

Two systems, one box: what can leak on a Navien combi
System	What it does	Signs of a leak
Domestic hot water	Heats water for taps and showers	Water at fittings, relief valve discharge
Space heating loop	Heats radiators or radiant floors	Pressure dropping on the gauge, damp floors near pipes
Condensate	Drains acidic water from combustion	Puddle near the neutralizer or drain
Make-up water	Refills the heating loop	Constant refilling, which hides a leak elsewhere

Radiant floor heat? A leak in the heating loop under a floor can show up as a warm, damp spot. Our leak detection uses thermal imaging to find it.

Our cleanup

Drying a closet, garage or crawl space after a Navien leak

Navien units often hang in tight utility closets or garages, sometimes with piping that runs into a crawl space below. Water from a leak can end up in all three.

Closet floors and walls

Closets are small and closed, so moisture lingers. We extract water, pull baseboards if needed and dry the wall bottoms and subfloor.

Under the floor

If pipes pass through the floor, water can drip into the crawl space. We check below on every job.

Next to finished rooms

Garage walls often back onto living space. Thermal imaging shows if water crossed into the next room.

Then we dry and document

Structural drying runs with daily readings, and we record the source for your technician and insurer.

How we help

Our Navien leak cleanup steps

Safety and shut-off
We confirm the unit is off and the area is safe to work in.
Trace the water
Meters and thermal cameras check walls, floors and the space below.
Extract and remove
Water removed; damaged baseboards or pad taken out if they cannot dry.
Dry closely spaced areas
Compact drying setups fit tight closets and utility rooms.
Document the source
Photos and notes help your technician and adjuster.
Repair
Drywall, baseboard and flooring repaired once dry.

Navien in Kirkland

Kirkland homes with Navien units

Combi upgrades

Homes in Bridle Trails and Houghton with radiant heat often use combi boilers.

Garage installs

In Juanita and Kingsgate, many tankless units hang on garage walls next to bedrooms.

Crawl space piping

In Rose Hill, pipes from the unit often run through the crawl space, where leaks hide.

Other water heater brands

Water heaters besides Navien we clean up after

View all 25 brands

Independent restoration company. Not affiliated with these manufacturers.

Service areas

Navien leak cleanup near you

Same day cleanup across Kirkland and nearby cities.

View all service areas

Related services

Services for Navien tankless and boiler leaks

View all 25 services

Helpful guides

Guides for Navien owners

Read all water damage guides

FAQs

Navien leak questions

Why is my Navien leaking water?

Common causes include a clogged or cracked condensate neutralizer or drain line, a relief valve releasing pressure, loose fittings under the unit, or an internal leak. A qualified technician can diagnose it.

Is water from the condensate hose normal?

A small amount while the unit runs is normal on condensing models, and it should go to a drain. A full, constant stream is not normal and should be checked.

Can a combi boiler leak from the heating side?

Yes. Combi boilers have a heating loop as well as hot water. Falling pressure on the boiler gauge or damp spots near heating pipes can point to a heating-side leak.

What should I do first?

Turn off power to the unit and close the cold water inlet valve. Catch water with towels or a bucket, then call a technician and us.

Will insurance cover a Navien leak?

Sudden water damage is often covered by homeowners insurance. Repairs to the unit itself usually are not. We document the damage for your claim.

Do you repair Navien units?

No. We clean up and repair the water damage. A licensed plumber or heating technician repairs the unit.

Read our water damage blog Ask us a question

Available 24 hours

Navien leaking? We will dry it out today.

Call (425) 592-3603 for 24 hour Navien leak cleanup in Kirkland. See all brands we cover or our homepage.

Call (425) 592-3603 Contact us About our team

Open 24 hours, 7 days a week: (425) 592-3603

Call now