Lochnivar Boiler Repairs London

Lochnivar Boiler Repair London

Honest advice on Lochnivar boilers, and when replacement makes more sense than repair.

Jump to:
Quick Checks ·
Reality Check ·
Replacement Options ·
Landlords

Quick Checks (60 Seconds)

These solve a surprising number of “no heat” calls:

1. Check your fuse box: a tripped breaker can look like a boiler failure.
2. Check thermostat/timer: settings can change after power cuts; replace batteries in wireless controls.
3. Check system pressure (if you have a pressure gauge): if it’s low, don’t guess – follow our pressure guide.
4. Reset once only: if it locks out again, stop resetting and call us.

The Reality About Lochnivar Boilers

Lochnivar is a US-based manufacturer with a UK operation, known primarily for commercial and light commercial water heaters and boilers. Their products are less common in typical domestic settings and more often found in larger properties, commercial premises, or specialist installations.

If you have a Lochnivar unit in a domestic property, it was likely specified for a particular reason (high hot water demand, larger property, or a commercial conversion). This affects your repair and replacement options.

Key considerations:

• Specialist equipment: Lochnivar units often require engineers familiar with commercial-grade equipment.
• Parts availability: while Lochnivar still operates in the UK, parts for older or discontinued models can be harder to source than mainstream domestic brands.
• Cost of repair: commercial-grade components typically cost more than domestic equivalents.
• Replacement options: depending on your property’s needs, a mainstream domestic boiler may now be suitable, or you may need a like-for-like commercial replacement.

We’re here to give honest advice: if your Lochnivar has failed and repair costs are disproportionate, replacement with a suitable modern unit is often the better investment.

What Happens When You Call Us

Here’s how we handle Lochnivar boiler enquiries – no drama, no pressure:

1. We understand the symptoms (no heat, no hot water, error codes, leaking, odd smells/noises).
2. We confirm the setup (boiler type, model, application, and approximate age).
3. We give an honest feasibility view – whether repair is realistic or likely to be uneconomic.
4. If replacement is the smart option – we provide a clear, fixed-price quote and explain the best-fit boiler choices for your property.
5. You decide – we’ll support either route, but we won’t pretend an uneconomic repair is “worth it”.

Why Customers Choose Us for Installation

• Gas Safe registered engineers – safe, compliant work with a proper handover.
• We install all major brands – Worcester Bosch, Vaillant, Baxi, Ideal, Viessmann and more.
• Fixed pricing – clear scope, no surprise extras.
• Respectful, tidy installs – we protect your home and clean up properly.
• System-first mindset – we check the wider heating system, not just the boiler box.
• Aftercare available – servicing and ongoing support options.

Repair vs Replace: The Numbers Usually Make It Obvious

On specialist or commercial-grade boilers, repair costs can quickly become disproportionate.

Example repair scenario (illustration only): A call-out + diagnosis + repair attempt on commercial-grade equipment could be £500+ depending on fault and parts availability.

• If the unit is aging, another component may fail soon.
• Commercial parts often cost more than domestic equivalents.
• There’s often no meaningful long warranty on older equipment.

Compare that to replacement: a modern boiler installation from £1,899 (domestic) or a tailored quote for larger properties gives you a warranty-backed unit designed for parts availability and long-term support.

Landlords: This Is Especially Important

If you’re a landlord with a Lochnivar boiler in a rental property, replacement is usually the professional move:

• Tenant satisfaction: heating failures are one of the fastest ways to generate complaints and void periods.
• Emergency call-out costs: reactive repairs on commercial equipment are often expensive.
• Compliance confidence: modern boilers are easier to maintain and support for safety checks.
• EPC outcomes: a modern, efficient boiler can help overall EPC performance (property-specific factors apply).

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

Still Want to Explore Repair?

That’s fine. If you want a diagnosis first, we can assess the fault and confirm whether parts exist and whether a repair is sensible.

We’ll give you the honest answer – including when a repair would be throwing good money after bad.

Brands We Install

When it’s time to upgrade, we’ll help you choose the right boiler for your home and budget:

London Wide Coverage

We install and repair boilers across all London boroughs. For coverage and service areas, see our London coverage page.

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