Heating Engineer vs Plumber — Which One Do You Need?

When you have a radiator or boiler issue, it's not always easy to know who to call.

After all, whilst there's overlap, heating engineering and plumbing are very different professions.

So, which one should you choose for which issues?

Read on to find out.

When to call a heating engineer

For any heating system issues, you should always call in a heating engineer.

They can help with repairs (including emergencies), replacements, annual services with all things to do with your heating system:

• Radiators
• All types of boilers
• Thermostats
• Hot water cylinders
• Associated piping
• Gas fireplaces

When to call in a plumber

As a rule of thumb, any appliance that is water-based is the domain of the plumber, including:

• Taps
• Toilets
• Dishwashers
• Sinks

Plumbers are usually qualified to perform:

• Clearing blockages and airlocks in pipes that carry water (for example, powerflushes)
• Investigating and fixing water leaks (including dripping taps)
• Installing and fixing water-based appliances (e.g., unblocking sinks, installing dishwashers, etc.)
• Fixing, repairing and installing bathroom suites
• Troubleshooting issues with toilets (e.g., toilets that won't flush)
• Maintenance, repair and installation of drainage, stormwater drainage and sewage systems.

Key differences

Many tradespeople train in both plumbing and heating.

The more important distinction you should consider is whether they hold the right certification for the specific job. For example:

• Gas Safe registration for gas appliances (required for gas work, whether a heating engineer or plumber)
• OFTEC certification for oil boilers (most likely heating engineers)
• Part L (Unvented Hot Water Storage) qualification for working on Megaflo systems (most likely plumbers)

So, you can find plumbers with Gas Safe registration for specific gas appliances (such as stovetops). But this doesn't mean they're qualified to work on gas boilers.

How to find a Gas Safe registered heating engineer

Getting a Gas Safe registered engineer is essential if they need to work on a gas appliance.

And they will need an OFTEC certification if you need them to look at oil boilers.

Most will proudly display their certification on their website and/or on their advertising literature.

You should still carry out a check on the Gas Safe website to confirm this.

What to do before letting a heating engineer or plumber start work

You can take a few precautions before an engineer starts work on your boiler or heating system.

For example, you can ask to see their ID card. Examine it closely and check:

• Does the name of the business on the card match the name of the business you contacted?
• Does the photo on the card match the appearance of the engineer in front of you?
• Is the card genuine or has it been tampered with?
• Is the expiry date on the card sometime in the future or has it passed?
• Does the card have a security hologram?

If you suspect they are unqualified to work on gas appliances, you can report them to the Gas Safe register.

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