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The 24 Hour Boiler Repairs call centre is open right around the clock. Our team of friendly operators are on hand to take your call and dispatch a highly trained engineer to your door. Our commitment to dealing quickly with all boiler emergencies, regardless of when or where they happen, means we have one of the best response times around. So, rest assured, when you get in contact with 24 Hour Boiler Repairs, your problem will be dealt with at speed by a team of highly skilled professionals. If you have an issue with your heating system, get in touch straight away.

Address
24 Hour Boiler Repairs
86-90 Paul Street
London
EC2A 4NE

Phone
0203 868 6251

Email
info@24hourboilerrepairs.co.uk

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Need a Gas Safe engineer in London ASAP? Call us 24 Hours a day!

Gledhill

Gledhill Cylinder and Thermal Store Repairs London

Gas Safe and G3 qualified engineers · 24/7 call handling · London wide

Tell us the model and any fault code or lights showing. We will advise the safest next step.

  • Experienced Gledhill cylinder and thermal store specialists
  • Available 24 hours a day, 7 days a week
  • Insurance approved
  • All parts guaranteed for a year
  • Fully Gas Safe trained engineers

Lines open now

0203 868 6251

Have your Gledhill model and the fault showing ready.

★★★★★4.6/5 on Google

We cover Gledhill repairs in London, including PulsaCoil, ElectraMate, StainlessLite and other thermal store models.

Common faults include no hot water, tundish dripping, immersion issues and expansion vessel problems.

We also offer boiler servicing and boiler installation across London.

Safety First

Water discharging from pressure relief valve? If water is continuously flowing from the tundish or discharge pipe, turn off the immersion heater and boiler feed. Call an engineer. Do not cap or block the discharge pipe.

Smell gas? If you have a gas boiler feeding the cylinder, turn off the gas supply at the meter if it is safe to do so. Open windows. Leave the property. Call the National Gas Emergency Service on 0800 111 999. Do not use switches, and do not use naked flames.

CO alarm sounding? Stop using the appliance. Open doors and windows. Leave the property. Call the National Gas Emergency Service on 0800 111 999. If anyone is drowsy, breathless or has a headache, call 999 as well. Do not re-enter until you are told it is safe.

Cylinder leaking heavily? Turn off the water supply to the cylinder and the heat source (boiler or immersion). Call an engineer.

★★★★★The engineer was punctual, honest about costs and carried out the work to a very high standard.Siva Yelakarajula · Google review★★★★★Great guy on time true professional resolve the issue same dayDavid Brazier · Google review★★★★★Great service- fast, professional, clear and reasonable.Isolde Murphy · Google review

Quick Checks Before You Call

Before calling an engineer, these safe checks may resolve simple issues with your Gledhill unit.

Check the power supply

Is the immersion heater switched on at the isolator? Check the fuse in the spur. If you have a Gledhill ElectraMate or PulsaCoil, ensure the unit has power.

Check the programmer or timer

Is the heating or hot water scheduled to be on? Check the clock is set correctly. On Gledhill thermal stores, hot water availability depends on the store being charged.

Check the thermostat setting

The cylinder thermostat controls when the immersion or boiler feed heats the water. If set too low, water may not be hot enough. If set too high, the safety cut-out may have tripped.

Check the pressure gauge (unvented cylinders)

Gledhill unvented cylinders have a pressure gauge. Normal pressure varies by property and valve settings. If the gauge is unusually high or discharge is visible at the tundish, turn off the heat source and call an engineer.

Check the reset button

Some Gledhill units have a manual reset button, often behind a cover. If the thermal cut-out has tripped, you may be able to reset once. If it trips again, do not keep resetting. Call an engineer.

Gas Safe registered boiler engineers

Fully Gas Safe trained engineers

Every gas repair is carried out by a Gas Safe registered engineer. You are told what needs doing and what it costs before anything starts.

★★★★★4.6/5 on Google

Gledhill Symptoms and Fault Indicators

Gledhill thermal stores and unvented cylinders vary by model. Some have digital displays with fault codes. Others use indicator lights or have no display. Tell us exactly what you see.

Symptom/Common Meaning/What To Do

No hot water Immersion not heating, thermal store not charged, or thermostat fault

Check power, timer, and thermostat. If all are fine, call an engineer.

Water not hot enough Thermostat set too low, immersion element failing, or thermal store not fully charged

Check thermostat setting. If correct, call an engineer.

Water too hot or overheating Thermostat stuck on or thermal cut-out not functioning

Turn off immersion and boiler feed. Call an engineer immediately.

Pressure relief valve discharging Expansion vessel failed, pressure too high, or thermostat fault causing overheating

Turn off heat source. Call an engineer. Do not block the discharge.

Low pressure on gauge Leak in system or pressure reducing valve issue

Call an engineer. Do not attempt to repressurise an unvented cylinder yourself.

Red light or fault light Safety cut-out tripped or system fault on some models

Try reset once if accessible. If it trips again, call an engineer.

Unit leaking Internal corrosion, seal failure, or fitting issue

Turn off water supply and heat source. Call an engineer.

Note: Gledhill units vary widely. Call us with the model and what you can see, and we will advise the safest next step.

Not sure which fault you have?

Call and tell us the model and what you see. We handle Gledhill unvented cylinder and thermal store faults in London, including tundish discharge, immersion issues and expansion vessel problems.

0203 868 6251

Most Searched Gledhill Problems

If your Gledhill cylinder or thermal store is not producing hot water, keeps tripping, or is discharging water from the tundish, tell us the model and we will confirm the safest next step. Common searches include PulsaCoil no hot water and ElectraMate faults.

No hot water from Gledhill PulsaCoil or ElectraMate

The Gledhill PulsaCoil and ElectraMate are popular thermal store units. If you have no hot water, check power supply, timer, and thermostat first. If the thermal store has not been charged (heated), there will be no hot water available. If power and settings are correct but there is still no hot water, the immersion element, thermostat, or controls may have failed. Call an engineer for Gledhill repair.

Pressure relief valve keeps discharging

If water is continuously flowing from the tundish or discharge pipe on an unvented Gledhill cylinder, the expansion vessel may have failed or the thermostat may be stuck, causing overheating. Turn off the heat source and call an engineer. Do not block or cap the discharge pipe as this is a safety feature.

Thermal cut-out keeps tripping

If the thermal cut-out on your Gledhill unit keeps tripping, the thermostat may be faulty or there may be a circulation issue preventing heat from dissipating properly. Try resetting once. If it trips again, do not keep resetting. Call an engineer to diagnose the cause.

Why Gledhill Units Develop Faults

Gledhill is a UK manufacturer specialising in unvented cylinders and thermal stores. Here is what we commonly see.

Immersion heater failure

Immersion elements can fail over time, especially in hard water areas where limescale builds up. Symptoms include no hot water or water not reaching full temperature.

Thermostat and control faults

Thermostats control when heating activates and when it stops. A faulty thermostat can cause no hot water, water not hot enough, or overheating and thermal cut-out trips.

Expansion vessel failure (unvented cylinders)

Unvented cylinders have an expansion vessel to absorb pressure changes as water heats. When the vessel fails, pressure rises and water discharges from the pressure relief valve. This requires G3 qualified engineer repair.

Scale build-up

In hard water areas, limescale can build up on immersion elements and heat exchangers, reducing efficiency and causing premature failure. Regular servicing helps prevent this.

Gledhill Models We Repair

What we cover, and what to tell us when you call.

Gledhill unit repairs London We repair every Gledhill model Current ranges and older units, subject to parts availability

Models we repair

We repair Gledhill unvented cylinders and thermal stores in London, including PulsaCoil, ElectraMate, StainlessLite, and other models. If you can, tell us the model number and approximate age. We will check parts availability before booking where possible.

G3 qualification

Unvented hot water cylinders require G3 qualified engineers for certain repairs. Gas Safe registration covers boiler and gas appliance work. G3 qualification covers unvented cylinder work. Our engineers hold both qualifications where required and will advise on the scope of work.

Parts availability varies by model and age. We check before attending and advise honestly if repair is not viable or cost effective.

Repair or Replace Your Gledhill Unit?

We help you decide based on age, reliability, and parts availability.

Repair makes sense when

  • Unit is under 10 years old
  • This is the first major fault
  • Parts are readily available
  • Unit has been regularly serviced

Replacement may be better when

  • Unit is 15 years old or more
  • You have had multiple breakdowns recently
  • Parts are obsolete or hard to source
  • The cylinder is corroded or leaking from the vessel itself
  • Hot water demand has increased beyond the unit capacity

Our engineers give honest assessments. If we cannot source parts or the repair is not cost effective, we will tell you.

Gledhill Servicing

Annual servicing reduces breakdown risk and keeps your Gledhill unit running efficiently. See Boiler servicing London.

Landlords and Letting Agents

We provide cylinder and thermal store repairs for landlords across London. See Landlord gas safety certificate (CP12).

London based boiler repair engineers

Gledhill Repairs Across London

London wide coverage for Gledhill repairs where parts are available. Book an engineer or view our London areas we cover.

Have your postcode and the model ready and we will confirm the quickest appointment slot.

Other Boiler Brands We Repair

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Worcester • Vaillant • Ideal • Baxi • Glow-worm • Viessmann • Potterton • Main • Vokera • Alpha
View all brands ›

Gledhill Repair FAQs

Do you repair Gledhill PulsaCoil and ElectraMate?

Yes, we repair Gledhill thermal stores including PulsaCoil and ElectraMate models. Tell us the model and fault when you call.

Do you need G3 qualification for Gledhill repairs?

Some repairs on unvented cylinders require G3 qualification. Our engineers hold the appropriate qualifications and will advise if your issue requires G3 scope work.

How quickly can you attend for a Gledhill breakdown?

We offer same day attendance where slots are available. For no hot water, we prioritise urgent breakdowns. Call our 24/7 line and we will advise availability.

How much does a Gledhill repair cost?

Costs vary depending on the fault and parts required. We diagnose first and quote before any repair work begins.

Related Services

Emergency boiler repairs Breakdowns, lockouts and leaks Boiler servicing London Annual service and safety checks Boiler installation London Replacements and new fitting Power flush London Cold radiators and system sludge Landlord gas safety certificate (CP12) Certification across London London areas we cover Book an engineer in your borough

What customers say

Verified Google reviews. 4.6 out of 5.

★★★★★

Used this company after being recommended and I am glad I did. The engineer was punctual, honest about costs and carried out the work to a very high standard. Felt like a trustworthy service.

Siva YelakarajulaGoogle review
★★★★★

Good value for money & was able to sort out my boiler quickly by ordering next day delivery for broken parts. Friendly, punctual service and laid out all the costs beforehand which was helpful. Would recommend.

Emma CourtneyGoogle review
★★★★★

Resourceful and helpful with the issue we had with our boiler

Katarina JezovnikGoogle review

Speak to Our Team

For safe next steps, call now or request a call back.

Call 0203 868 6251

Book an Engineer ›

Gas Safe and G3 qualified · 24/7 call handling · Quote before work
24 Hour Boiler Repairs, 86-90 Paul Street, London EC2A 4NE
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Google reviews

★★★★★4.6/5 on Google
★★★★★

Really impressed with the boiler repair service. Clear communication from the start and no surprises with pricing. The engineer was friendly, knowledgeable and got everything sorted efficiently.

Nishanth ThachemaGoogle review
★★★★★

Booked them in for a power flush after ongoing heating issues. The engineer was very thorough and explained what was being done at each stage. We noticed a huge difference in how quickly the radiators now heat up.

S ThanuGoogle review
★★★★★

Used this company after being recommended and I’m glad I did. The engineer was punctual, honest about costs and carried out the work to a very high standard. Felt like a trustworthy service.

Siva YelakarajulaGoogle review

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