
Hot water on demand
Tankless Water Heater Installation
Moving from a tank to an on demand system, with sizing by flow rate, proper gas supply and venting, and service valves for easy flushing.
Tankless Water Heater Installation for Snellville area homes
A tankless water heater heats water only when you open a tap. There is no tank to keep hot all day, and as long as the unit is sized correctly, the hot water does not run out halfway through a shower.
Tankless water heater installation in Snellville is a bigger project than a tank swap, because on demand units need more gas or electrical capacity and different venting. Planned well, it frees up floor space and gives a steady supply of hot water.

Is tankless a good fit for your home
You run out of hot water
Back to back showers stop being a scheduling problem.
You want floor space back
Wall mounting can free a closet or a corner of the garage.
You are planning for the long term
Tankless units often have a long service life when they are flushed regularly.
You understand the tradeoffs
Up front cost is higher, and hot water can take a moment to arrive at distant taps.
What installation includes
- Sizing by the number of fixtures likely to run at the same time
- Evaluating the gas line size and meter capacity, or electrical service for electric models
- Planning a vent route suited to the unit
- Mounting the unit and making water and gas connections
- Installing isolation valves for future descaling
- Removing the old tank and testing the full system
From tank to tankless
- 1
Site check
The location, vent path and gas or electric supply are reviewed first.
- 2
Choose the unit
A model is matched to your peak flow, not just the number of bathrooms.
- 3
Install and vent
The unit is mounted, connected and vented according to the manufacturer.
- 4
Run it hard
Several fixtures are run together to confirm the unit keeps up.
Sizing in plain terms
Tankless units are rated by how many gallons per minute they can heat by a given temperature rise. In cooler months the incoming water is colder, so the unit has to work harder. Sizing for the colder season avoids disappointment in winter.
Gas line size is often the deciding detail. A tank heater uses modest gas input; a tankless unit may need much more. If the existing line cannot supply it, a new run may be needed, which affects cost and timing.
This service is available in Snellville and the nearby communities listed on our service areas page. For broader questions, the water heater FAQ covers the basics.
Related water heater services
06Tankless Water Heater Replacement
Replacing an aging or failed tankless unit with a correctly sized model, compatible venting and connections set up for easier future maintenance.
Read about tankless water heater replacement
11Tankless Water Heater Repair
Error codes, cold water sandwiches, flame failures and scale buildup. Careful diagnosis and descaling to bring an on demand unit back to steady heat.
Read about tankless water heater repair
08Water Heater Replacement Cost
A plain explanation of what drives the cost of replacing a water heater, so you can compare options and ask the right questions.
Read about water heater replacement costQuestions about tankless water heater installation?
The contact page lists the details about your heater that help most when discussing this service.