Tankless Water Heaters CT | Drain Wizard Plumbing

Tankless water heaters deliver hot water on demand — no standby loss, no tank to fail, and often a 20+ year lifespan. We install and service Rinnai, Navien, and other leading brands, sized correctly for your home's flow rate and CT groundwater temperatures.

Our process

Size the load

We calculate your peak simultaneous demand so the unit never runs cold mid-shower.

Upgrade what's needed

Most tankless installs require a larger gas line and dedicated venting — we handle both.

Register & maintain

We register your warranty and set you up on an annual descaling schedule.

Why Connecticut homeowners choose Drain Wizard for tankless water heaters

Tankless Water Heaters in an older Connecticut home rarely fits a one-size-fits-all repair. Greater New Haven's housing stock spans century-old cast iron and galvanized systems, mid-century copper and clay laterals, 1970s Orangeburg, and modern PEX & PVC — each behaves differently and each has a right way to service it. Drain Wizard is a family-owned, Connecticut P1-licensed plumbing contractor based in Hamden, and tankless water heaters is core to what our experienced plumbing professionals do every week across Hamden, North Haven, Wallingford, Cheshire, Branford, Guilford, Madison, Milford, Meriden, New Haven and the rest of the region.

Every tankless water heaters call starts with a real diagnosis — not a guess — and a detailed written estimate you approve before any work begins. We show up when we say we will, protect your home with drop cloths and shoe covers, and stand behind the workmanship with the Drain Wizard Guarantee. If a permit or inspection is required, we pull it and see it through.

Signs you may need tankless water heaters

Call sooner rather than later — most tankless water heaters problems get more expensive the longer they sit. Watch for these warning signs and give us a call at (203) 823-8992 for a same-day diagnostic:

Rinnai, Navien, Rheem, Noritz

Correct sizing for CT winter groundwater temps

Gas line and venting upgrades handled in-house

Annual descaling service to protect your warranty

Recirculation options for instant hot water

Frequently Asked Questions

Will a tankless keep up in Connecticut winters?+

Yes — when it's sized for our cold groundwater. Undersized units are why some homeowners have had bad experiences.

How often does a tankless need service?+

Annual descaling is required to maintain most manufacturer warranties, especially in areas with hard water.

Is tankless worth it?+

For most families, yes — 20+ year lifespan, lower energy bills, and no cold showers on holidays.

Tankless Water Heaters

What's included