Plumber in Cardiff – Fast Emergency Repairs & Same-Day Service

Flooded home? No hot water? Drain backing up into your property? Get a trusted Cardiff plumber at your door fast. Call 07812 510121 now for 24/7 emergency service.

Fully Qualified & Insured Plumber

24/7 Emergency Service Available

Locally Owned & Operated in Cardiff

Satisfaction Guaranteed on All Work

You need a plumber right now, not tomorrow. Maybe your hot water has stopped in the middle of winter. Maybe there’s water spreading across your floor. Or that drain that’s been slow for weeks finally stopped completely. Whatever brought you here, you’re stressed and you need someone who can actually fix it today. That’s exactly what we do. Call 07812 510121 and a plumber from KB Heating and Plumbing will be on the way.

Why Gary Homeowners Call Us First

Five-Star Reviews

Our customers rate us 5 stars across Google and Facebook. We've earned that reputation one job at a time — showing up on time, charging what we quote, and fixing it right the first time.

45-Minute Average Response

When your basement is flooding, you can't wait 4 hours. We dispatch from Gary so our trucks are already in your neighborhood. Emergency calls get priority — day or night.

Diagnosis Fee

We never charge just to tell you what's wrong. You'll get a clear explanation and upfront price before we touch a wrench. No surprises on your invoice.

Fixed Right or It's Free

Not happy with our work? We come back and make it right at no charge. If we can't fix it to your satisfaction, you don't pay. No fine print.

What Gary Customers Say

Gas Engineer in Cardiff

Right, let’s be honest. Nobody thinks about their gas until something goes wrong. You are mid-shower, the water goes cold, and suddenly the boiler is your whole personality. Or you come downstairs on a January morning in Cardiff, it is freezing, and the heating has packed in overnight. We have been there with people. Literally standing in their kitchens in Roath and Cathays while they are still in their dressing gowns trying to figure out what has happened.

We have worked in Cardiff homes for years now. Terraces in Splott. Flats in Cardiff Bay. Big old semis in Pontcanna where the pipework looks like it was put in during the war. Every job is different but the aim is always the same. Find the problem, be straight with the homeowner about what needs doing, fix it properly, and leave.

If your gas is playing up, do not sit on it. Tell us what is going on, give us a few details, and we will sort it out.

Emergency Gas Engineer in Cardiff

A bloke in Grangetown rang us last winter. Said he could smell something near the meter cupboard under the stairs but was not sure if he was being paranoid. He was not paranoid. There was a slow leak at a joint that had been working itself loose for months.

That is the thing about gas emergencies. Sometimes they announce themselves loudly. Other times they are quiet and you just get a feeling that something is off. Both of those feelings deserve a phone call.

When we come out on an emergency we are not guessing. We are checking. We find the source, make the area safe, and tell you plainly what is going on and what needs to happen next. We have done late callouts across Cardiff, Llandaff, Pontprennau, all over. We do our best to get to you quickly because we know waiting around when you are worried about gas is no fun at all.

If you are not sure whether what you are dealing with counts as an emergency, just call. The worst that happens is we tell you it is fine and you feel relieved. That is a good outcome.

Gas Safety Certificate in Cardiff

Most landlords we meet are decent people who just got busy and let the renewal date sneak up on them. The letting agent has started chasing, the tenant has mentioned it, and now there is a bit of a scramble. Happens all the time. We are not judging, we are just here to get it sorted.

A gas safety certificate, a lot of people call it a CP12, is basically a written record that someone qualified came and checked your gas appliances and pipework and everything was safe. The inspection follows a CP12-style format. We go through each appliance in the home, check how it burns, check the flue is doing what it should, check ventilation, and write it all down. You get a copy at the end.

The checks that catch people out most often in Cardiff? Old gas fires that have not been touched in years. Boilers in houses that have changed hands two or three times with no paperwork trail. If either of those sound familiar, book sooner rather than later. Finding a problem during a routine check is a lot easier to deal with than finding one when your certificate has already expired.

We cover Cardiff Bay, Roath, Canton, Cathays and most of the surrounding streets without any fuss.

Landlord Gas Safety Check in Cardiff

Being a landlord in Cardiff is a lot of work. We hear it all the time. There is always something. But this is one you really cannot let slip.

Under Regulation 36 of the Gas Safety (Installation and Use) Regulations 1998, most rented homes need a gas safety check every single year. After it is done you have got 28 days to get the record to your tenant and you need to keep a copy for yourself too. The HSE’s landlord gas safety page has the full breakdown of your responsibilities if you want to read through it.

We do a lot of these checks in Cathays and Roath, where there are loads of shared houses and student lets. The properties that tend to cause headaches are the ones with a gas fire in the front room that nobody has looked at since the nineties, or a back boiler tucked behind a panel that the current tenant has never even opened. We find these things, we tell you what they mean, and we give you the options without making it complicated.

Sorting this every year also protects you. If something does go wrong and you have got up to date records, you are in a much stronger position. It is not just a legal box to tick.

Gas Leak Detection in Cardiff

There was a woman in Roath who rang us a couple of years ago. Said she had come downstairs in the morning, noticed something that smelled a bit like eggs near the back of the cooker, and was not sure if she was imagining it. She had moved the cooker out slightly to check behind it. We had to gently explain that moving appliances when you suspect a gas leak is not the thing to do.

She was fine. The house was fine. But there was a small leak at a connection that had been there for a while.

If you smell gas, please do not go looking for it yourself. Open the windows, get out, and call the national gas emergency line on 0800 111 999. They are there twenty four hours a day and will tell you exactly what to do. Do not touch switches. Do not turn anything on or off. Just go.

Once the immediate situation is dealt with, we come in and find exactly where the leak was. We test the pipework around it and confirm everything is safe before gas goes back on. A lot of the older terraced streets in Roath and similar parts of Cardiff have pipe runs going back decades. Some of them have never been properly checked. Small slow leaks are the sneaky ones because nothing dramatic happens until it does.

Gas Appliance Repair in Cardiff

Not every gas job is an emergency. Sometimes it is just your boiler being annoying. It fires up, runs for twenty minutes, then cuts out. You reset it, it does the same thing. You reset it again. Sound familiar?

We hear this one a lot in Cardiff, especially from October onwards when the heating goes back on after sitting unused all summer. Boilers that cut out repeatedly, gas fires that click without lighting, cookers where half the rings have stopped working. These things are frustrating but most of them are fixable without ripping out the whole appliance.

The most common culprits we see are safety valves that have tripped because of a blocked burner, gas fires that have not been serviced and are just tired and dirty, and boilers with pressure or airflow issues that a reset was never going to solve. We check properly, find the actual fault, and tell you what it will take to fix it. If it is not worth repairing we will say so. We are not going to string you along on an appliance that is done.

Gas Cooker Installation in Cardiff

We fit a fair few gas cookers in Cardiff and honestly the jobs vary more than you would think. Some are quick and clean. Old cooker out, new one in the same spot, connection checked, done in an hour. Others are more of an adventure, especially when someone has bought a big range cooker online and the gas supply in their Victorian kitchen in Canton was never built to handle it.

The rule on this is simple. Anyone doing gas work in the UK has to be on the Gas Safe Register. There is no workaround on that. Having someone unregistered connect a gas cooker is genuinely dangerous, regardless of how handy they are with a spanner.

When we fit a cooker we check the supply, make the connection properly, run a leak check, and test the thing before we leave. We will also walk you through the basics of using it safely, especially if it is a different type to what you had before. A few minutes explaining how the safety cut-off works is worth it.

Gas Hob Installation in Cardiff

A built-in gas hob is one of the most common things people add during a kitchen refit in Cardiff. New worktop, new cabinets, new hob to match. It looks great when it is done. The bit that sometimes gets forgotten is that the gas connection needs doing properly before the rest of the kitchen gets built around it.

We get called in on refits where the hob has been left right to the end. The cabinets are in, the worktop is down, and there is barely room to reach the connections. We can usually still make it work but it takes longer and it is more awkward than it needs to be. Our honest advice is always the same. Get the gas sorted before the worktop goes down. It is a much cleaner job and it avoids any last minute stress when the kitchen fitter is waiting to sign off.

The hob needs the right connection, tested for leaks and pressure, before it gets used. We fit it, test it, and confirm it is safe before we go.

Gas Fire Service in Cardiff

Cardiff has a lot of period homes and a lot of period homes have gas fires. Pontcanna, Roath, Cathays, you see them everywhere. Original Victorian fireplaces that were converted to gas at some point, sometimes recently, sometimes decades ago. Sometimes with paperwork, often without.

A gas fire can look and sound completely normal while something is quietly wrong with the flue or the combustion. We found a blocked flue on a fire in Pontcanna last year that had been running all winter. The family had no idea. The fire lit, it burned, they were warm. But the flue was not drawing properly and combustion gases were not going where they should. That is the sort of thing that does not announce itself until it is a serious problem.

We clean the burner and components, check the flue and seals, and look at how the fire is actually burning. Uneven flames, odd colour, sooting around the surround, all of these are things we check for. We tell you what we find in plain language and what, if anything, needs doing about it.

Gas Pipe Installation in Cardiff

Cardiff is an old city. A lot of the housing stock is old too. The gas pipe runs in many of these homes were put in to serve appliances and layouts that no longer exist, and when you start moving things around or adding to the property the existing pipework quickly runs out of reach.

Extensions, loft conversions, room changes, moving a boiler from one wall to another. All of these can mean new pipework. It is not just a case of running a pipe from one place to another. The route needs planning, the fittings need to be right, every joint needs to be secure, and the whole thing needs a pressure test at the end before anything gets connected to it.

We have done this kind of work in flats in Cardiff Bay where the pipe had to travel further than expected and in small terraces in Splott where there was not much room to work with. We plan it first, do it properly, and test it before we hand it over.

Gas Line Testing in Cardiff

If you have just had work done on your gas pipework, or your appliances seem to be running weaker than usual, a tightness test tells you whether the system is holding pressure the way it should.

It is a fairly simple test. We put a controlled pressure into the pipework and watch to see if it holds. If the pressure drops, there is a leak somewhere. It gives you a definite answer, which is more useful than a vague feeling that something might not be right.

We do a lot of these in Cathays and similar areas where there are a lot of student lets. Connections get knocked during tenant moves, small jobs get done by people who should not have been doing them, and nobody checks the pipework afterwards. A quick tightness test catches any of that before it becomes a problem. Pass or fail, you know where you stand.

Frequently Asked Questions

When should I call a gas engineer in Cardiff?

If you smell gas, hear hissing near a pipe or appliance, or your boiler or fire keeps cutting out for no clear reason, call. Gas problems do not tend to sort themselves out and leaving them rarely makes anything better.

What should I do if I smell gas at home?

Get out. Open the windows on your way out if you can do it quickly, do not touch any switches, no lighters, no flames. Once you are outside call the national gas emergency line on 0800 111 999. They are available around the clock. Do not go back in until you are told it is safe. And please, do not try to find the leak yourself first.

What is a Gas Safety Certificate?

It is a written record that a qualified engineer checked your gas appliances and pipework and found them safe. Often called a CP12. The Gas Safe Register has a clear explanation of what the check actually covers if you want to know before you book.

Do landlords need a gas safety check each year?

Yes. Regulation 36 of the Gas Safety (Installation and Use) Regulations 1998 covers most rented properties across Great Britain. You need the record, you need to share it with your tenant, and you need to keep a copy. Set a reminder every year. It is one of those things that is easy to stay on top of until suddenly it is not.

Can you install a gas cooker I bought online?

Yes, as long as the cooker suits your gas supply and the connection point is safe to work from. Send us the model details beforehand and we can check. We have fitted plenty of online purchases and most of the time it is fine, we just like to know what we are walking into.

Can you fit a gas hob during a kitchen refit?

Yes. Our strong advice is to get it done before the worktop goes down rather than after. We have squeezed into enough finished kitchens to know it is a much better job when there is room to work properly.

Why does my gas appliance keep turning off?

Usually airflow, a safety sensor, or pressure. All fixable but you need a proper check to know which one. Resetting it over and over is not the answer.

What is gas leak detection and how does it work?

It is a set of checks with proper equipment to find exactly where gas is escaping. Once it is found, we make it safe and confirm the system is clear before anything goes back on.

What is a tightness test on a gas line?

Controlled pressure goes into the pipework and we check whether it holds. If it drops, there is a leak. Clear pass or fail, and we tell you what comes next.

Do you cover all areas of Cardiff

Yes. Roath, Canton, Pontcanna, Cathays, Llandaff, Grangetown, Splott, Cardiff Bay, Pontprennau. If you are unsure whether we cover your street just ask, chances are we do.

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Book a Gas Engineer in Cardiff

If you need a gas engineer in Cardiff, just drop us a call or message. Tell us your address, what the appliance or job is, and what you have noticed. We will tell you what the next step is and get something booked in.