We answer 24/7 · Gas Safe № 2836

Glow-worm boiler repair in Great Mongeham — same-day help when it matters

No heat or hot water? Call before midday and we're usually with you today.

  • Same-day response
  • Most repairs fixed first visit
  • Stocked vans, local engineers
  • No call-out fee on HomeCare plans
Rated 5.0 ★ from 134 Google reviews · Gas Safe № 2836 · 25+ years established

Boiler stopped working in Great Mongeham? Don't panic — help is closer than you think. Glow-worm faults diagnosed and repaired by Gas Safe engineers. We cover the village and its lanes just behind Deal.

What happens next

  1. You book or call. Tell us what's wrong and when suits you.
  2. We ring back within the hour. In office hours, we confirm your slot and the engineer.
  3. We turn up when we said. Our rates are published on the site — no surprises.

"Phoned Osbornes and was so impressed by the speedy service. They arrived when they said they would."

Tracy Rothen · Google review

Book an urgent visit

📞 We'll call you back within the hour during office hours to confirm your slot.

No obligation. We confirm every booking by phone before an engineer sets off.

By requesting a booking you accept our terms & conditions, including our 24-hour cancellation policy and published rates.

Glow-worm boiler repair in Great Mongeham, done properly.

Fault-finding is our bread and butter. Our engineers know Glow-worm boilers inside out — common faults, common parts, and the quickest safe fix. Call before midday and we're usually with you the same day.

  • Phone answered 24 hours a day
  • Stocked vans — most fixes first visit
  • £80+VAT first hour, £40+VAT per half hour
  • No call-out fees on HomeCare plans

Seen a fault code?

Look it up in our free Glow-worm fault code library — what it means and what's safe to check before we arrive.

Glow-worm boilers, repaired in Great Mongeham

Glow-worm is our value choice for homeowners who want a dependable boiler without paying a premium for the badge. Built by the same group as Vaillant, they share plenty of engineering, and they represent honest value when budget matters.

Safe checks before you call us

A few things are worth trying yourself, and none of them involve opening the boiler. Check the pressure gauge — most boilers want roughly 1 to 1.5 bar when cold, and a system that has dropped below that may just need topping up via the filling loop. Check the thermostat is calling for heat and has working batteries. Check other gas appliances still work, in case the supply is the issue. Give the boiler one reset.

If it locks out again after a reset, stop there and call us. Anything involving gas, the burner or sealed components legally requires a Gas Safe registered engineer. And if you ever smell gas, leave the property and ring 0800 111 999 straight away.

The faults we see most often

No heating but hot water working (or the reverse) usually points to a diverter valve. Pressure that keeps dropping means a leak, a tired pressure relief valve, or an expansion vessel that needs recharging. Radiators cold at the bottom is sludge, and needs a flush rather than a new boiler. Ignition lockouts often come down to electrodes, a fan, or the gas supply.

Our engineers carry the parts that fail most, so the majority of repairs are done in a single visit rather than a diagnosis today and a return trip next week.

What it costs

No hidden fees

You know the rate before we set off. No call-out fee on top, no vague “from” pricing.

First hour on site Always chargeable, even if the fix is quick. £80+VAT £96 inc. VAT
Each additional half hour Charged in 30-minute increments after the first hour. £40+VAT £48 inc. VAT
  • Parts are charged on top of labour — if we can get the part the same day, we'll usually fit it on the visit.
  • We answer the phone 24 hours a day, but we do not operate a guaranteed emergency call-out or out-of-hours cover service — we will always tell you honestly when we can get to you. Where we are able to attend outside normal working hours by prior arrangement, that time is charged at double the standard labour rate.
  • BOYLA HomeCare members pay no call-out fee.
See full pricing →

Questions we're often asked

Is it worth repairing an old boiler?

Often, yes — we are repair-first, and a well-made boiler is usually worth fixing. But when the repair cost starts approaching a meaningful share of a replacement, or parts are getting hard to find, we will tell you honestly rather than take your money for a fix that only buys a few months.

What should I do if my boiler stops working?

Check the obvious first: is there power, is the pressure gauge in the normal band, is the thermostat calling for heat, and has the gas supply been interrupted? A reset is worth one attempt. If it locks out again, stop there and call us. If you smell gas at any point, leave the property and ring the National Gas Emergency line on 0800 111 999 immediately.

How fast can you get to Great Mongeham?

For emergencies, usually the same day — especially if you ring before midday. We will give you an honest arrival window on the phone rather than a vague all-day slot.

How is a repair visit charged?

Repairs are charged at our hourly rate: the first hour is always billable, then in half-hour increments after that, plus any parts. We explain the rate when you book, before anyone comes out. BOYLA HomeCare members pay no call-out fee.

Why is my boiler losing pressure?

Most often a small leak somewhere on the system, a failed pressure relief valve, or a waterlogged expansion vessel. Topping it up via the filling loop is a safe short-term fix, but if you are doing that more than once or twice a year something needs investigating — persistent pressure loss usually means water is escaping somewhere.

Why is my boiler making a banging or whistling noise?

Kettling — a whistling or rumbling as it heats — usually means limescale or sludge in the heat exchanger, which is common in hard-water parts of Kent. Banging on start-up can point to ignition problems. Neither is something to ignore, as both make the boiler work harder and shorten its life.

Ready when you are.

Call now or request a callback — we'll ring you back the same working day.

Call now Free quote