24/7 emergency line open
Synergy Gas & Plumbing logo Synergy Gas & PlumbingGas Safe Registered
24 hour emergency call-out 07413 385767 Answered 7 days a week, day or night

Gas Leak Detection & Repair, Birmingham

If you can smell gas, call the National Gas Emergency Service on 0800 111 999 first — it is free and 24-hour, and they will make the supply safe. They do not repair your internal pipework. That is what we do: tightness test the installation, locate the leak, repair it and restore your supply.

Gas Leak Detection & Repair, Birmingham — Synergy Gas & Plumbing, Birmingham
Gas leak detection across Birmingham and the Black Country. Gas Safe registered 594385.

Request an engineer

Four details and we will get back to you to arrange a time. Prefer to talk? Call 07413 385767.

Gas trace and repair: £99 for the first hour in office hours. Pipework repairs are quoted on site before we carry on.

No travel charge within 10 miles of B20 2JS. Further out, £2 per mile may apply — always agreed before anything is booked. Full price list

Smell gas now? Do not use this form or wait for a reply. Call the National Gas Emergency Service free on 0800 111 999 (24 hours). If you are using a mobile, make the call from outside. Open doors and windows, do not switch electrics on or off, do not smoke or use naked flames, and turn the gas off at the meter if it is safe to do so, unless the meter is in a cellar or basement. Once the supply has been made safe, we can trace and repair the fault.

The first part, such as B20, is enough.
Add email, boiler make or a preferred time (optional)

Photos help: you can send them on WhatsApp once your enquiry is in.

Sending this is an enquiry, not a booked appointment: we confirm a time with you first. We only use your details to reply. Privacy notice

Or book a confirmed time online, or WhatsApp us a photo

Who does what

There is a division that catches people out. Cadent and the National Gas Emergency Service deal with the supply up to and including your meter, and they will isolate and cap to make you safe. Everything after the meter — the pipework in your walls, floors and under the units, and the appliances themselves — is yours, and needs a Gas Safe registered engineer. That is the point we come in.

How we find it

  1. Tightness test. We pressurise the installation at the meter and watch for a drop. This confirms whether there is a leak and how big it is.
  2. Sectional isolation. We isolate appliances and sections of pipework in turn to narrow it down without lifting every floorboard.
  3. Location. Electronic gas detection and leak detection fluid pin down the exact joint or run.
  4. Repair. Remake the joint or replace the section, retest, and issue documentation.

Where leaks usually are

In older Birmingham housing stock the recurring culprits are compression joints behind cookers, corroded steel pipe under solid floors in pre-war terraces, redundant capped-off supplies to removed gas fires, and meter unions disturbed by other trades. Newer builds are more often a badly made joint on a hob or a boiler installed by someone in a hurry.

A recent example from Edgbaston: Cadent capped a customer's supply after a 20 mbar drop on the internal pipework. We traced the leak to the old steel gas pipe, capped it off, kept the supply to the boiler and had the heating back the same day after a clean tightness test. Read the case study.

Carbon monoxide is a separate risk

A gas leak you can smell. Carbon monoxide you cannot — no smell, no colour, no taste. It comes from appliances burning incompletely, not from leaking pipework.

Signs an appliance may be producing carbon monoxide

  • A lazy yellow or orange flame where it should be crisp and blue
  • Black, sooty marks or yellow-brown staining on or around the appliance
  • A pilot light that keeps blowing out
  • More condensation than usual on the inside of windows in the room

Symptoms of carbon monoxide poisoning

Headache is the most common. Also dizziness, feeling or being sick, tiredness and confusion, stomach pain, and shortness of breath. It can feel like flu but without a high temperature. The pattern that gives it away: symptoms ease when you leave the property and come back when you return.

If you suspect carbon monoxide: switch off the appliance, shut off the gas at the meter if it is safe to do so, open doors and windows, get everyone out, and call the National Gas Emergency Service on 0800 111 999. Then get medical help — see a doctor or call 111, and call 999 if anyone has collapsed or lost consciousness. Do not use the appliance again until a Gas Safe registered engineer has checked it. Full carbon monoxide guide.

If your CO alarm sounds, get everyone out into fresh air and call 0800 111 999. If you do not have an audible CO alarm near every gas appliance, fit one; they cost less than £20 and we will position them for you free on any visit.

Prices

Prices, updated September 2026
JobPrice
Gas trace and repair — first hour£99
Tightness testIncluded in the trace
Pipework repair or replacementQuoted on site
Remove and cap redundant gas fire supply£120

The £99 is a fixed charge for attendance, diagnosis and the first hour in office hours (Mon–Fri 8am–5.30pm); it is not the price of every job. Pipework repairs and further work are quoted and agreed before we carry on, out-of-hours work is quoted by phone before we set off, and the capping price is the price for the job as described. No travel charge within 10 miles of B20 2JS; further out, £2 per mile may apply, agreed before booking. How our prices work.

What it costs

Updated Sept 2026

£99 first hour

Gas trace and repair: £99 for the first hour in office hours. Pipework repairs are quoted on site before we carry on.

No travel charge within 10 miles of B20 2JS. Further out, £2 per mile may apply — always agreed before anything is booked.

Full price list

Gas leak detection

From £99
CalloutEarliest available visit — ask when you call
OfficeMon–Fri 8–5.30
Emergency24/7
Gas Safe reg.594385

Coverage

From B20 2JS
Standard radius10 miles
Installationsup to 50 miles
TownsB'ham, Sandwell, Walsall, Dudley, Solihull
Answers

Gas leak detection: common questions

What do I do if I smell gas right now?

Call the National Gas Emergency Service free on 0800 111 999 straight away (24 hours). If you are using a mobile, make the call from outside. Open doors and windows, do not switch electrics on or off, do not smoke or use naked flames, and turn the gas off at the meter if it is safe to do so, unless the meter is in a cellar or basement. Do not wait to phone us first. Once the emergency service has made the supply safe, we can trace and repair the fault.

Will the gas board fix my leak?

They will make you safe by isolating or capping, but the repair to pipework beyond the meter is the property owner's responsibility and requires a Gas Safe registered engineer.

How much does a gas leak repair cost?

In office hours, tracing plus the first hour is £99. The repair itself depends on where the leak is and how accessible the pipe is — we price it once located and before we start.

How do I know if I have a leak with no smell?

A gas tightness test at the meter is the definitive answer. If your meter dial creeps with every appliance off, call us.

Also

Other services

Supply made safe and need the leak found? Call us.

If you can smell gas now, call the National Gas Emergency Service on 0800 111 999 first. Once the supply is safe, we will tell you honestly when we can get to you, and agree the price before any work goes ahead.