Tankless Water Heater Installation in Lago Vista & the Lake Travis Area

Licensed & Insured · Texas Responsible Master Plumber RMP44420 · TDLR AC Contractor TACLA22663C · 4.9 stars on Google · Family-owned since 2018 · Mon to Fri 7:30 AM to 8 PM, Sat 8 AM to noon

Tired of running out of hot water, or short on closet space? Real Texas Plumbing Heating and Air installs tankless water heaters in Lago Vista, Jonestown, Point Venture, The Hollows and Lakeway. We size the unit to your home, check your gas line or electrical panel before we quote, and give you the price in writing before we start. The $65 trip charge goes toward the job when you schedule.

Is a tankless water heater worth it in Lago Vista?

Often, yes: for bigger households, lake houses that fill up on weekends, and anyone short on space. Not always: for a small household that rarely runs out of hot water, a tank costs less to buy and install. Your fuel, your panel, and our hard water decide most of it, and the sections below show how.

How much does a tankless water heater installation cost?

Tankless costs more than a tank, which runs $2,200 to $4,400 installed. The difference usually comes from the gas line size, venting, electrical work, and whether the unit replaces a tank in a tight closet. Your written quote lists each item, and the $65 trip charge is applied toward the work when you schedule.

Tank or tankless?

• Up-front cost: lower for a tank, higher for tankless.

• Typical life: a tank lasts 8 to 12 years, less in hard water. A tankless can last up to about 20 years with regular maintenance.

• Hot water: a tank is limited by its size and needs time to recover. A tankless is continuous, if the unit is sized right.

• Space: a tank needs floor space. A tankless is wall-mounted.

• Maintenance in hard water: a tank needs an annual flush. A tankless needs an annual descale, and skipping it shortens its life most.

• Power: a tankless needs electricity to run, even gas models.

• Best for: a tank suits smaller households and the lowest install cost. A tankless suits larger households, lake houses and tight spaces.

Propane, natural gas or electric: what your home needs

• Propane or natural gas: a whole-home tankless burns far more gas at once than a tank does. Before we quote, we check the size of your gas line, your propane regulator, and the vent path. A line that fed a tank may be too small for a tankless.

• Electric: whole-home electric tankless units can draw more power than many older panels have to spare. We check your panel's capacity first, and we tell you if an upgrade would be needed before you commit.

• Venting: gas units vent through a wall or roof, and condensing models also need a drain for condensate. We plan the route before we quote.

Hard water is a tankless heater's biggest enemy

Water around Lago Vista is hard. The minerals form scale inside a tankless heat exchanger, which shows up as error codes and weak flow. Plan on a descale once a year, which is included in our maintenance plan. A water softener protects the heater, and we will tell you honestly whether your home needs one.

Sizing: how we decide

We size a tankless by how much hot water you use at once and how cold your incoming water is in winter, not by square footage. A typical shower runs about 2 to 2.5 gallons per minute, so two showers, a dishwasher and a washer starting together add up fast. We add up your real peak use and pick a unit that holds up in January.

Lake houses and weekend homes

A tankless heats nothing while the house is empty, then keeps up when everyone arrives on Saturday. If your place sits idle between visits, tell us. It is one of the reasons tankless can make sense here.

Cold snaps and power outages

Tankless units need electricity for their controls and freeze protection. In a long outage during a hard freeze, follow the manufacturer's drain-down steps. When we install, we show you where the drain valves are.

How installation works

1. Consultation: we look at your hot water use, existing heater, gas line or panel, and where the unit will go.

2. Written estimate: you get your options and the price in writing before any work starts.

3. Installation: most tankless installs take 4 to 6 hours. Gas line upgrades, venting changes or electrical work can add time.

4. Testing and walkthrough: we check performance and safety, then show you how to run it and when to service it.

What is included

• Removal and haul-away of your old water heater

• The new unit, set, connected, vented and tested to the manufacturer's specifications and current code

• Gas line, venting and electrical work your install needs, listed in the written price

• A startup, a walkthrough, and answers to your questions

Where we install tankless water heaters

Lago Vista, The Hollows, Point Venture, Jonestown, Lakeway, Leander, Cedar Park, Anderson Mill, Crystal Falls Parkway, Bee Cave and northwest Austin.

Lago Vista shop: 20811 Dawn Drive, Lago Vista, TX 78645. Lakeway location: 2802 Flintrock Trace, Lakeway, TX 78738.

Ready for endless hot water? Call (512) 662-2949 or request a quote online.

Switching from a tank to tankless usually means a bigger gas line and regulator. See gas line installation in Lago Vista for how we size it.

Related services: water heater replacement and installation, water heater repair, water softener installation and plumbing maintenance.

Real Home Care: one plan for your whole home

Real Home Care is $45 a month and covers your plumbing, heating and cooling with one plan. Own a grinder pump? Add it for $10 more, $55 a month total. Call (512) 662-2949 to sign up.