ServicesTankless Water Heaters
Tankless Water Heater Installation in Woodbury
We size, install and vent tankless water heaters for homes in Woodbury and the surrounding area. You get a unit matched to your actual hot water demand, a confirmed install date with an arrival window, and a call from us if anything on the schedule changes.
What a tankless install actually involves
A tankless water heater only works when someone opens a hot tap. A flow sensor picks up the moving water, the gas burner or electric elements switch on, and a heat exchanger brings the water up to your set temperature on its way to the fixture. Without a 40 or 50 gallon storage tank kept hot around the clock, standby heat loss disappears, and the unit keeps heating for as long as the tap stays open.
Replacing a tank heater with one is seldom a simple trade of one appliance for another. At full output, a gas tankless unit burns much more fuel per hour than a tank model, so the gas pipe feeding your old heater is often undersized. The new unit also needs a dedicated vent, and it usually can't share the flue the tank used. Its heat exchanger has narrow water passages that collect scale fast in hard water, which many Middle Tennessee homes have.
We sort out each of those pieces at the estimate, so install day runs as long as we told you and your hot water goes off for one planned block of time, not a string of interruptions.
What our installation covers
- 01
Sizing by flow and temperature rise
We count the fixtures you run at the same time and calculate gallons per minute against winter inlet temperature. Cold groundwater means the unit has to raise the temperature further, which cuts its usable flow. Sizing for January keeps showers hot in January.
- 02
Gas line evaluation and upsizing
We check the meter capacity, pipe diameter and length of run back to the meter. If the line can't deliver the unit's full BTU rating, we upsize it, because an underfed burner leads to temperature swings and error codes.
- 03
Venting to the manufacturer's spec
Condensing units vent through PVC or CPVC and need a condensate drain. Non-condensing units need stainless steel vent pipe. We route the vent with the clearances and slope the installation manual calls for.
- 04
Isolation valves and a service port
We install isolation valves with flush ports on the hot and cold lines. They let you or us run a descaling solution through the heat exchanger without cutting into the plumbing.
- 05
Removal of the old tank
We drain the old water heater, disconnect it safely and haul it away. The space it leaves is often enough for a filter or simply some storage.
Questions about Tankless Water Heaters?
Call(931) 236-1835Signs a tankless water heater makes sense for your home
Your tank heater is near the end of its life
Most tank water heaters last roughly 8 to 12 years. If yours is in that range, planning a tankless swap now beats replacing it in a hurry after the tank fails.
You run out of hot water
Back-to-back showers or a bath while the dishwasher runs drain a tank faster than it can recover. A correctly sized tankless unit keeps up as long as demand stays within its flow rating.
Rusty water or rumbling from the tank
Brown hot water points to a corroding tank lining. Popping or rumbling usually means sediment has built up on the bottom and is overheating under the burner. Both mean the tank is wearing out.
You need the floor space back
A tankless unit mounts on a wall and takes up about the size of a carry-on suitcase. That frees up a utility closet or garage corner.
You are already remodeling
If walls are open or the utility room is being reworked, it's the easiest time to run a new gas line and vent. That cuts labor compared with doing it later.
How the job runs, from first call to hot water
- 1
Estimate visit on a set window
We give you an arrival window and keep it. If a crew runs long on an earlier job, we call before the window opens instead of after. On site we measure the gas line, check the vent path, test water hardness and write out what the install needs.
- 2
Scheduling the install day
Once you approve, we order the unit and parts and book a date. If you're within the permit area, we pull the permit and tell you when the inspection is likely to fall.
- 3
Install day
Water and gas get shut off once, at the start. We mount the unit, run the gas and vent, connect the water lines and isolation valves, then fire it up and check gas pressure under full load. Most installs finish in one working day. Jobs that need a new gas run or a relocated vent can take longer, and we tell you that up front.
- 4
Walkthrough and cleanup
We show you the temperature controls, the flush valves and the error code display. We clean up the work area and haul off the old tank.
What moves the price of a tankless install
The heater itself is only part of the cost. Most of the difference between one install and another comes from the gas, venting and electrical work around it. Your estimate is free and lists each item separately, and we offer financing options. We take all major credit cards and cash.
- Gas or electric unit
- Gas units need a larger gas line and venting. Whole-house electric units skip both, but usually need a panel with room for several large dedicated breakers, and sometimes a service upgrade.
- Gas line upsizing
- A short run from a nearby meter may need no changes. A long run with undersized pipe has to be replaced to carry the unit's full load.
- Venting route and unit type
- Condensing units cost more but vent through less expensive plastic pipe. Non-condensing units cost less up front but need stainless vent. The distance to an outside wall and the number of turns add material and labor.
- Location changes
- Installing in the old tank's spot keeps water and gas runs short. Moving the heater to a new wall adds piping on every connection.
- Permit and water treatment
- Permit fees depend on your jurisdiction. If your water is hard, adding a scale filter protects the heat exchanger, and that's a line item we'll recommend instead of assume.
Tankless water heater questions
Will a tankless water heater give me endless hot water?
Yes, as long as your demand stays within the unit's flow rating at your winter temperature rise. If you open more taps than it was sized for, the water cools down instead of running out. That's why we size for the coldest months and the fixtures you actually run together.
How long will my hot water be off?
For a straight swap in the same location, usually most of one working day. If we need to run a new gas line or vent, we tell you the expected length when we schedule. If anything changes during the job, we let you know right away.
Does hard water hurt a tankless unit?
Hard water leaves calcium scale inside the heat exchanger, which cuts efficiency and can trip overheat codes. Flushing through the isolation valves with a descaling solution about once a year keeps it in check. For very hard water, our whole home water filtration service can reduce scale at the source.
Can my existing gas line handle a tankless heater?
Sometimes, but often not. A gas tankless unit can use several times the fuel of a tank heater when it's running at full output. We measure the pipe size and length of run during the estimate, so you know before install day whether an upgrade is needed.
What if my old water heater quits before the install date?
Call us. We provide 24/7 emergency plumbing service and can get you safe and stable, shutting off gas or water at the heater if needed, while we move your tankless install up as far as parts allow.
Plan your tankless install on your schedule
Let us know what kind of heater sits in your home today and when hot water demand peaks, like morning showers or evening laundry. We'll schedule an estimate visit with a firm arrival window. If the old heater gives out before then, our phone is answered day and night.