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Scale inside the tank
A layer of scale on the heating element and inside the tank often causes crackling, hissing and longer heat-up times.
Water Heater Making Noise
Water heater humming, crackling, hissing or running louder than usual? We'll find the cause of the noise and confirm the price — all in a single visit.
- Diagnose the source of the noise
- Check for scale, the heating element and the valve
- Cleaning or repair when needed
- Price agreed before work starts
We'll call you back within 5 minutes — we'll confirm what the noise sounds like and tell you whether to switch the water heater off before we arrive.
Why a water heater can make noise
Noise often comes from scale, overheating in the heating area, the valve, pressure or worn parts. The exact cause is found after an inspection.
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Heating element is under strain
If the heating element is coated in scale or worn, it can run louder and transfer heat to the water less efficiently.
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Valve issue
The pressure relief valve can hum, drip or behave erratically under high pressure or with incorrect piping.
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Air or pressure
Unusual sounds can sometimes come from trapped air, pressure swings or quirks of the water supply.
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Incorrect connection
Installation mistakes, weak fittings or incorrect piping can amplify noise and unstable operation.
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Water heater hasn't been serviced in a while
If the water heater has run for several years without cleaning, noise is often the first noticeable sign of built-up scale.
What you can check before calling a technician
You can observe the noise without opening the water heater. Don't remove the cover or touch any internal components. If the noise comes with a smell, a leak, a tripping breaker or overheating, don't delay the call.
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Identify the type of noise
It matters whether the water heater hums, ticks, hisses, crackles or only makes noise during heating.
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Note when the noise starts
Noise can start right after switch-on, during heating or when hot water is drawn — this helps diagnostics.
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Check for any drips
If alongside the noise the valve, flange or supply line is dripping, let the technician know.
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When the water heater was last cleaned
If the water heater has run several years without cleaning and is now noisy, scale is the likely cause. That information helps the technician.
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Record a short video
A video with sound helps the technician understand the noise in advance and prepare for the visit.
If the noise appeared suddenly or is getting louder, send a request. Most often the problem is solved by cleaning in a single visit.
What the technician checks on site
The technician will check the water heater, the amount of scale, the heating element, the valve, the connection and whether anything is leaking. After diagnostics he'll explain whether cleaning, repair or parts replacement is needed.
Why noise shouldn't be ignored
Noise isn't just a nuisance — it can be a sign of scale, overheating or parts not working properly. If the cause isn't addressed, the water heater may start heating worse or fail.
- Inspect the water heater, valve and fittings
- Check the heating element and possible scale
- Assess the tank and service-assembly condition
- Check the pressure relief valve
- Check heating, pressure and stable operation
- Confirm cleaning, repair or parts replacement
Possible repairs
Noise is most often resolved by cleaning or maintenance, but sometimes parts replacement or a connection check is needed.
Water Heater Cleaning & Descaling
- hisses;
- crackles;
- slow to heat;
- hasn't been cleaned in a while.
Heating element or anode rod replacement
- heating element is damaged;
- anode rod is worn;
- heavy scale buildup;
- weak heating.
Valve and connection check
- valve is noisy;
- dripping;
- pressure swings;
- wiring error.
How the repair goes
when the water heater is noisy
From request to result — no extra steps
- 01
You send the request
Call or message us and describe the noise and when it occurs.
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We confirm the symptoms
We'll ask for the model, capacity, age of the water heater, how long since the last cleaning, and whether there's weak heating, drips or shutdowns.
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We run the diagnostics
The technician will check for scale and inspect the heating element, anode rod, valve, connection and the overall condition.
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We agree on the price
Before the work starts, we'll explain what's causing the noise and how much the cleaning or repair will cost.
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We fix the cause and test the unit
After the work the technician will start the water heater up and check the heating, the noise level, the seals and stable operation.
Water heater started making noise?
We'll come out today. The repair price is agreed before the work starts.
How much the repair costs when the water heater is making noise
The price depends on the cause of the noise, the condition of the unit, the amount of scale, access to the service area and whether parts need replacing.
- Water heater diagnostics from 50 ₾
- Water heater descaling from 100 ₾
- Heating element or anode rod replacement from 100 ₾
- Valve adjustment or connection repair from 70 ₾
Parts are billed separately. If the noise isn't related to scale, the technician will explain the real cause and propose the right work.
We service water heaters
from many brands
We diagnose and repair the popular electric storage water heaters installed in apartments, houses and commercial spaces in Tbilisi.
Popular brands
Water heater types we service
- Vertical water heaters
- Horizontal water heaters
- Water heaters of 30-100+ litres
- Electric storage water heaters
- Water heaters in apartments, houses, offices and small commercial spaces
Frequently asked questions
Answers to the questions people most often ask when a water heater is making noise.
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Why is my water heater making noise while heating?
A common cause is scale on the heating element and inside the tank. The noise can also come from the valve, pressure, the connection or worn parts.
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Is hissing or crackling dangerous?
Sometimes it's a sign of scale, but if there's a smell, a leak, overheating or the breaker is tripping, switch the water heater off and call a technician.
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Will cleaning help?
In many cases, yes. If the noise is from scale, cleaning reduces it, improves heating and eases the load on the heating element.
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Do I need to replace the heating element if the water heater is noisy?
Not always. The heating element is replaced if it's damaged, heavily worn or misbehaving. Sometimes cleaning is enough.
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How long does cleaning or repair take?
The job usually takes 1 to 2 hours. The time depends on the model, access to the bottom and the amount of scale.
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Can I keep using the water heater until the technician arrives?
If the noise is moderate and there are no other signs of trouble, you can usually wait for the technician. If there's a smell, a leak or the breaker is tripping, don't use the water heater.
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How often should the water heater be cleaned?
Frequency depends on water quality and how heavily it's used. Tbilisi water is hard, so water heaters here need cleaning more often than in soft-water regions. If the unit has become noisy or slower to heat, don't delay maintenance.
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Can I send a video of the noise?
Yes. A short video with sound helps the technician understand the problem in advance.
Still have questions?
Call us — we'll confirm the symptoms, walk you through what you can check before the technician arrives, and let you know when one can come out.
Water heater making noise?
Send a request — we'll confirm the symptoms, arrange a visit time and inspect the water heater on site.
Request received
We'll call you back within 5 minutes