Tankless Water Heater Installation & Repair
Tankless water heater installation, repair, and a yearly flush and descaling, for gas, propane, and electric units.
A tankless water heater makes hot water as you use it, instead of storing it in a tank.
We install and repair gas, propane, and electric units, including Navien, and we flush and descale them once a year. Switching from a tank is work we do, and we size the new unit by how much hot water the home uses at once.
Signs you need a call
- No hot water, or hot water that runs out during a shower
- An error on the display, a new noise, or a unit that starts and then stops
- It has been a year or more since the last flush and descaling
- You have a tank water heater and want to ask about switching to tankless
What we do
- Tankless water heater installation
- Tankless water heater repair
- Yearly flush and descaling
- Gas, propane, and electric tankless
- Switching from a tank to tankless
- Navien tankless service
Upfront pricing: you get a firm price and approve it before any work starts. Service calls are $99 on weekdays, and $149 after hours (waived if you buy the job). Home Care 360 members pay no weekday dispatch fee and get 15% off repair parts. See the membership.
Common tankless water heater problems we fix
Not sure which one you have? Call and describe it. We will help you figure out what to do next.
No hot water
A unit that will not start can have a fuel, power, flow, or ignition problem. If you smell gas from a gas or propane unit, leave the home and call 911 from outside.
Hot water runs out during a shower
A tankless unit that is too small for how much hot water the home uses at once, or a unit full of scale, can run out or shut off. We look at the home before we recommend a size.
Error code, noise, or a unit that shuts off
A new noise, a code on the display, or a unit that starts and then stops needs a look. Tell us the code if you can see one.
Time for a flush and descale
Tankless water heaters need a yearly flush and descaling. If it has been a year or more, or the water is not heating the way it used to, call us.
The unit is leaking
Shut off the water to the unit if you can do that safely, and call us. A water leak after hours is an emergency call.
Switching from a tank water heater
Replacing a tank with a tankless unit is work we do. We look at the space, whether the home is gas, propane, or electric, and how much hot water you use at once.
What to expect on a tankless water heater visit
- You call or request service online
Call 423-948-8016 (Monday to Friday, 7 AM to 4 PM) or send the request form. Tell us what the system is doing, any noises, smells or error codes, and roughly how old the equipment is. - We line up your visit
We work to get a technician to you the same day when we can. Home Care 360 members go to the front of the line when the schedule fills up. After hours we take emergency calls for no heat, no cooling and water leaks. - The technician finds the cause
The technician checks the tankless unit, the water flow, the power or fuel supply, and any error on the display to find out why the hot water is missing, running out, or shutting off. - You get the options and a firm price
We explain what we found in plain language, give you a firm price, and you approve it before any work starts. The service call is $99 on weekdays and $149 after hours (waived if you buy the job). Home Care 360 members pay no weekday dispatch fee. - We do the work
Once you approve, we make the repair or do the replacement you chose. If a repair does not make sense, we will say so. - We clean up and check the result
Then we clean up and make sure you are comfortable with the result before we go.
Tankless water heater service in Erwin and nearby towns
Jake's is based in Erwin and serves homes across Unicoi County and the Tri-Cities, including Johnson City, Jonesborough, Elizabethton, Kingsport, Bristol, Greeneville, Limestone and Flag Pond. Call us if you need a tankless water heater installed, repaired, or flushed.
Repair or replace?
Age, repair history, and how much hot water the home uses at once all matter. We explain whether a repair makes sense or a replacement fits, including a switch from a tank to a tankless unit, and you get a firm price before any work starts.
Tankless water heater FAQ
Do you install tankless water heaters?
Yes. Tankless water heater installation is part of this work, including a switch from a tank water heater. We look at the home and explain the options before any work starts.
Do you repair tankless water heaters?
Yes. If the unit will not heat, runs out of hot water, leaks, shows an error, or shuts off, call us and describe what it is doing. We find the cause and give you a firm price before any work starts.
What is a yearly flush and descaling?
Tankless water heaters need a flush and descaling once a year so scale does not build up inside the unit. Tankless descaling is priced separately. It is not included in Home Care 360. The membership does include a water heater flush.
Do you work on gas, propane, and electric tankless units?
Yes. We install, repair, and maintain gas, propane, and electric tankless water heaters.
Do you service Navien tankless water heaters?
Yes. We service Navien tankless water heaters. Call us, tell us the model if you have it, and describe what the unit is doing.
Can I switch from a tank water heater to tankless?
Yes. We look at the space, the fuel, and how much hot water the home uses at once, then explain the options and give you a firm price before any work starts.
How do you size a tankless water heater?
We size it by how much hot water the home uses at once. We look at the home and explain the options before any work starts.
What if I smell gas?
Leave the home right away. Do not use switches, appliances, or phones inside. From outside, call 911 and your gas utility. Call us for repairs only once it is safe. This applies to gas and propane units.
Does a tankless install need gas line work?
It can, on a gas or propane unit. Gas line work is part of our plumbing service. We look at the job and give you a firm price before any work starts.
Is tankless descaling part of Home Care 360?
No. Home Care 360 includes a water heater flush. Tankless descaling is priced separately and is not included in the membership.
I am on well water. Does that matter?
It can. Well water can carry sediment or minerals that build up in water heaters. Tell us when you call so we can keep it in mind, especially for a flush and descale.
What does a tankless service call cost?
The service call is $99 on weekdays and $149 after hours (waived if you buy the job). Home Care 360 members pay no weekday dispatch fee. You get a firm price for any repair or replacement and approve it before work starts.
Is no hot water an after-hours emergency?
No hot water by itself is scheduled during business hours, Monday to Friday, 7 AM to 4 PM. If the unit is leaking water, that is a water-leak emergency: shut off the water if you can do it safely and call 423-948-8016. After hours, the $149 fee is waived if you buy the job.
Which towns do you serve?
Jake's Home Services serves Erwin, Unicoi County & the Tri-Cities. See our service areas page for the full list.
Home Care 360 Membership
One technician for HVAC, electrical and plumbing. Cooling in the spring, heating in the fall, electrical and plumbing once a year.
$24.95 / month, billed monthly
Tankless water heater service near you
Request Service
Tell us what you need. Or call 423-948-8016 now.