In İzmit and Kocaeli
Combi boiler repair
Is your boiler not igniting, not heating, or showing an error code on the display? Message us on WhatsApp and describe the problem. We find the fault on site and tell you the price before we start; we never begin without your approval.
Do not touch any electrical switches or the boiler, and do not light any flame. Open the windows, turn off the gas valve at the meter, leave your home and call 187, the gas emergency line, from outside.
İlhan speaks only Turkish. Write to us in English on WhatsApp: he reads your message and replies with a translation app.
Common faults
Which one sounds like yours? Just tell us that in your message.
Boiler won't ignite
If the boiler sounds as if it is running but does not light, or does not respond at all, the problem may be with the gas, the ignition or the electrics.
Radiators not heating
If you get hot water but the radiators don't heat up, or some radiators stay cold, the cause may be in the boiler or in the heating system.
Radiator cleaningNo hot water
If the water from the tap is only lukewarm, keeps changing temperature or doesn't heat up at all.
Water pressure keeps dropping
If the pressure on the gauge keeps dropping, there may be a leak in the boiler or in the system. Topping up again and again doesn't fix it.
Why pressure dropsBoiler keeps locking out
Boilers that keep switching themselves off, keep asking for a reset, or run for a while and then stop. If water is dripping underneath, see our article on a boiler leaking water.
Error code on the display
Send a photo of the code on WhatsApp. We can often tell roughly where the problem is before we arrive.
What error codes mean
What to check before contacting us
- Is the boiler plugged in, and is its circuit breaker on?
- Is the gas valve open, and does the hob light? If you have a prepaid (card) gas meter, has the credit run out?
- Is the pressure gauge between 1 and 2 bar?
- If you have a room thermostat, are its batteries still working and is it set correctly?
If all of these are fine and the boiler still doesn't work, message us. Do not open the boiler cover yourself; there is gas and electricity inside.
How we handle a repair
- Message usWe ask for your boiler's brand and the problem. If there is a code on the display, we ask for a photo.
- AppointmentWe agree on a day and time slot that suits you.
- On-site diagnosisWe find the fault, tell you the price and get your approval.
- Repair and handoverWe finish the job, test the boiler and show you the part we replaced.
What our customers say
- Ömer★★★★★
Hızlı ve kusursuz bir işçilik . Geç saatte başıma gelen arızaya saat farketmeksizin yetişen mükemmel bir usta samimi ve iyi yaklaşımlarıyla hem müşteri hizmeti hem iş hizmeti olarak 10/10 . Çok memnun kaldık Dereli teknik 💯
- İbrahim Kaplan★★★★★
Temiz ve güvenilir bir şekilde sorunumuz çözüldü.
Benim tahmin ettiğim fiyatın çok altında kalan bir hizmet oldu.
Cumartesi akşam olmasına rağmen aramam ile sorunun çözülmesi iki saati bulmadı.
Teşekkürü bir borç bilirim.
Questions about boiler repair
How is the price of a repair decided?
Once we have found the fault on site, we tell you what needs doing and the price. We never start without your approval.
When can you come?
When you message us, we agree on a day and time slot that suits you. If you prefer, you can see the available times on the booking form and choose one yourself. On Sundays you can contact us for emergencies.
My boiler is showing an error code. What should I do?
Send a photo of the code on WhatsApp; we can often tell roughly where the problem is before we arrive. If the code keeps coming back, don't keep pressing the reset button. More in our boiler error codes article.
What if the same fault comes back after the repair?
We give a one-year guarantee on our workmanship. If the same fault comes back within that time, we don't charge.
Can I see the part that was replaced?
Yes. We show you the old part that was removed. We don't replace parts unnecessarily.
Other services
- Boiler serviceAnnual service, before winter
- Radiator cleaningRadiators not heating, cold at the bottom
- Boiler installationNew boiler, moving a boiler
Related articles
- Error code on your combi boiler display: what it means and what to do
What the codes indicate, when a reset helps and when to get help.
- Why does combi boiler pressure drop, and what should you do?
What should the pressure be, why does it drop and how do you add water?
- Combi boiler dripping water: causes and what to do
Pressure relief valve, condensate pipe or a leak: what to do first.
Message us on WhatsApp
Just tell us your boiler's brand and the problem. İlhan speaks only Turkish: write in English and he replies using a translation app. From a photo of the display or the error code we can often tell roughly what the fault is.
Phone (Turkish only): +90 535 255 88 00
Your contactİlhan Dereli (speaks Turkish)
Working hoursWeekdays 08:00–20:00
Saturday 09:00–18:00AreaAll of Kocaeli, at your home