Rinnai and Navien tankless installs — engineered for 6,000 sq ft homes.
A 50-gallon tank can't supply a primary shower, soaking tub, and morning kitchen at the same time. We size, vent, gas-line, and install Rinnai and Navien tankless systems with hot-water recirculation — so every fixture, even the furthest powder room, gets hot water in seconds.
Endless hot water, recirculated to the furthest fixture.
- You run out of hot water during back-to-back showers
- Existing tank is 8+ years old or leaking
- You're remodeling a primary bath with a soaking tub
- Hot water at the far powder room takes 60+ seconds
- You want to reclaim closet or garage space
- Energy bills spike from a constantly reheating tank
Every tankless heaters project, fully scoped.
Sizing & Engineering
- Fixture-count and flow analysis (GPM at 70°F rise)
- Gas-line sizing and meter capacity verification
- Vent path: concentric, PVC, or stainless category-III
- Condensate drain routing for condensing units
- Cold-climate freeze protection planning
Install & Commission
- Wall-mount with isolation valves and service kit
- Up-sized gas line run from meter if required
- Hot-water recirculation pump and dedicated return
- Permit pulled and city inspection coordinated
- Combustion analyzer commissioning and manufacturer registration
A clear path from first call to final pressure test.
Load analysis & site visit
We count fixtures, measure your gas line, and confirm vent path before quoting anything — wrong-sized units fail.
Written proposal
Flat-rate proposal includes unit, gas, venting, recirc, permit, and commissioning — no change-order surprises.
Install day
Old tank pulled and disposed, new tankless mounted, gas and vent run, recirc set, condensate drained.
Commission & register
We commission with a combustion analyzer, register your warranty with the manufacturer, and walk you through service mode.
Flat-rate, written, approved before we start.
Pricing includes unit, isolation kit, standard venting, gas connection, permit, and commissioning. Up-sized gas runs, recirc retrofits, and electrical work for condensing units quoted after site visit.
Answers from our master plumbers.
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Learn MoreRequest your tankless heaters estimate.
Speak with a project advisor today. Same-day callbacks for Highland Park & University Park residents.