Morco Boiler Repairs London

Morco Boiler Repair London

Morco makes water heaters, not boilers – here’s what you need to know.

Jump to:
What Is Morco? –
Common Problems –
Your Options –
Upgrade Options

What Morco Actually Makes

Morco is a UK manufacturer of instantaneous gas water heaters – compact units that heat water on demand for taps and showers. They are not central heating boilers.

Morco water heaters are typically found in:

• Caravans and motorhomes: compact LPG-powered units
• Boats and narrowboats: marine-rated water heaters
• Holiday homes and cabins: where mains gas isn’t available
• Older London flats: properties without central heating that rely on separate water heating
• Off-grid properties: running on LPG or bottled gas

Important distinction: A Morco water heater only provides hot water for taps and showers. It does not heat your home or run radiators. If you also have cold radiators, that’s a separate heating system problem.

Common Morco Water Heater Problems

Typical issues with instantaneous gas water heaters:

• No hot water / won’t ignite: pilot light issues, gas supply problems, or ignition failure.
• Water not hot enough: flow rate too high, gas pressure issues, or heat exchanger scaling.
• Fluctuating temperature: common in older units – may indicate worn components.
• Pilot light keeps going out: thermocouple failure or draught issues.
• Yellow or sooty flame: combustion problem – stop using immediately and call an engineer.
• Water leaking: heat exchanger or valve failure.

The Reality About Morco in London Homes

If you have a Morco water heater in a London property, it’s likely either:

• An older installation from before the property had central heating
• A secondary unit providing hot water to a specific area
• Left over from a previous layout or conversion

Practical considerations:

• Age: many Morco units in London properties are decades old and well past their intended lifespan.
• Safety: older instantaneous water heaters lack modern safety features and may not meet current regulations.
• Efficiency: modern combi boilers or unvented cylinders are significantly more efficient.
• Parts: while Morco still operates, parts for older discontinued models can be difficult to source.

What Happens When You Call Us

Here’s our approach to Morco enquiries:

1. We understand your setup: what type of Morco unit you have, how old it is, and what’s gone wrong.
2. We assess your property: do you have central heating? What’s your current hot water arrangement?
3. We give honest advice: whether repair makes sense or upgrading is the smarter investment.
4. If upgrading is right: we explain your options and provide a clear, fixed-price quote.

Repair vs Upgrade: The Practical View

With older instantaneous water heaters, the economics usually favour upgrading.

Example repair scenario (illustration only): A call-out, diagnosis, and repair on an aging Morco could cost £250-400+ depending on the fault and parts availability.

• Parts for older models may be discontinued or hard to source.
• Another component could fail soon on aging equipment.
• You’re still left with outdated technology and no warranty.

Compare that to upgrading: A modern combi boiler from £1,899 gives you hot water AND central heating, with a proper warranty and decades of reliable service ahead.

Actually Need Boiler Help?

If you have a separate boiler for central heating that’s causing problems, check the brand and visit the relevant page:

Landlords: Old Water Heaters Are a Liability

If you’re a landlord with an aging Morco or similar water heater in a rental property:

• Safety risk: older gas appliances may not meet current safety standards.
• Tenant complaints: unreliable hot water is one of the fastest ways to lose tenants.
• Compliance: Gas Safe engineers may flag concerns about very old appliances during annual checks.
• Emergency costs: reactive repairs on obsolete equipment are expensive and disruptive.

We support landlords across London with Gas Safety Certificates (CP12) and practical upgrades. See our London landlord checklist.

London Wide Coverage

We cover all London boroughs for water heater and boiler services. See our London coverage page.

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