Independent Vaillant Boiler
Installation, Service & Repair

Independent Gas Safe engineers focused exclusively on Vaillant boilers, serving Berkshire, Surrey, Buckinghamshire & West London. Get expert installation, annual servicing, emergency repairs and rapid diagnostics from a team that knows the range inside out.

Why VaillantCare?

Why Choose VaillantCare?

We do one thing and we do it exceptionally well: Vaillant boilers. Our entire focus – from training to tooling to parts – is centred on the Vaillant range, meaning you always get specialist attention rather than a generic service.

Vaillant-Focused Expertise

Our engineers train exclusively on the Vaillant range. We understand the quirks, the common faults, and the best solutions for every model in the ecoTEC and ecoFIT families. When you call VaillantCare, you speak directly to someone who knows your boiler inside and out.

Gas Safe Registered

Every engineer on our team holds a current Gas Safe registration. We never subcontract to unqualified third parties, and all work is documented to the highest industry standards, including full Benchmark completion on new installations.

Transparent Pricing

We quote upfront, in writing, before we begin any work. There are no hidden call-out fees buried in small print, and no surprise labour charges added after the fact. What we quote is what you pay – it's that simple.

Genuine Parts Only

We fit only manufacturer-approved genuine Vaillant parts on every repair and installation. Using genuine components protects your warranty, ensures correct operation, and extends the lifespan of your appliance significantly over cheaper alternatives.

Rapid Response Times

We know that a broken boiler is never convenient. Our scheduling system is built for speed, with same-day emergency slots available and next-day appointments as standard. We'll give you a two-hour arrival window so you can plan your day around us, not the other way round.

Fully Insured & Documented

All our work is covered by comprehensive public liability insurance. Every job is logged with a completion report, and all new installations are registered with the appropriate Building Regulations notification scheme, protecting you as the homeowner.

What We Do

Our Core Services

From brand-new installations to urgent repairs, we cover every aspect of Vaillant boiler ownership.

New Boiler Installation

Typical survey to quote turnaround: 24 hours.

Full supply and installation of any model from the current Vaillant range. Includes system flush, Benchmark completion, and registration of your warranty.

See Installation Options

Annual Boiler Servicing

Protect warranty and improve seasonal efficiency.

A thorough 12-point inspection to keep your boiler running safely and efficiently. Essential for warranty compliance and landlord Gas Safety Certificates.

Book Annual Service
Most Requested

Repairs & Fault Diagnosis

Same-day emergency slots available.

Expert diagnosis of all Vaillant fault codes, from common issues like F.22 and F.75 to more complex PCB and heat exchanger failures. Most repairs completed in a single visit.

Request Fast Diagnosis

Warranty-Compliant Workmanship

All work logged and documented clearly.

All our servicing and repairs follow Vaillant's published maintenance schedules, preserving your manufacturer warranty and protecting the long-term value of your investment.

View Compliance Standards
Our Range

The Vaillant Gas Boiler Range

We install, service, and repair every model in the current Vaillant gas boiler lineup.

Vaillant ecoTEC plus Remastered boiler

ecoTEC plus Remastered

Best SellerCombi

The premium choice for most homes. Outstanding efficiency, whisper-quiet operation, and full smart control compatibility.

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Vaillant ecoTEC exclusive boiler

ecoTEC exclusive

PremiumSmart Controls

Vaillant's top-specification model with integrated weather compensation, ultra-low emissions, and an advanced 7" colour touchscreen.

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Vaillant ecoTEC pro boiler

ecoTEC pro

High OutputLarger Homes

The professional-grade workhorse. Designed for demanding installations, multiple zones, and properties requiring higher output.

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Vaillant ecoTEC plus Open Vent boiler

ecoTEC plus Open Vent

Open VentTank-Fed Homes

The conventional boiler option for properties that retain a traditional tank-fed system. High efficiency in a familiar format.

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Vaillant ecoFIT pure boiler

ecoFIT pure

ValueCompact

Reliable, efficient, and affordable. The ecoFIT pure delivers excellent performance and smart-home readiness at an accessible price point.

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Fault Codes

Boiler Showing a Fault Code?

Vaillant boilers display fault codes to help diagnose problems. Here are the six most common codes we encounter.

Fault Code Meaning Common Cause Action
F.28 Ignition failure Faulty ignition electrode, gas supply issue Book a repair
F.75 Pump fault / no pressure detected Failed pump or pressure sensor Book a repair
F.22 Low water pressure System leak, repressurise needed Check pressure, book if recurring
F.29 Flame loss during operation Gas supply interruption, flue blockage Book urgently
F.62 Safety valve relay fault PCB or wiring fault Book a repair
F.83 NTC sensor fault Sensor failure, frozen condensate Book a repair
Annual Care Plan

One Fixed Price. Zero Boiler Worries.

Choose the cover that suits your home. Every plan includes your annual Vaillant boiler service, a Gas Safety Certificate, and priority engineer booking — so you're always first in the queue.

Essential
£89/yr
+ VAT  •  billed annually
  • Annual 12-point boiler service
  • Gas Safety Certificate
  • Benchmark record update
  • Annual reminder email
  • Priority booking
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Most Popular
Standard
£129/yr
+ VAT  •  billed annually
Best for homeowners who want priority response and better call-out value.
  • Annual 12-point boiler service
  • Gas Safety Certificate
  • Benchmark record update
  • Annual reminder email
  • Priority booking — skip the queue
  • 10% off all repair call-outs
Choose Standard
Premium
£159/yr
+ VAT  •  billed annually
  • Annual 12-point boiler service
  • Gas Safety Certificate
  • Benchmark record update
  • Annual reminder email
  • Priority booking — skip the queue
  • 15% off all repair call-outs
  • One free diagnostic visit / yr
Choose Premium

All plans renew automatically. Cancel any time. Prices exclude VAT. Terms apply.

Ready to Book?

Ready to Book? It Takes Less Than 4 Steps

Use our simple online booking wizard to select your service, property details, preferred date, and confirm your appointment. No phone calls required.

Vaillant Boiler Engineers Across Berkshire, Surrey, Buckinghamshire & West London

VaillantCare prioritises Vaillant boiler service, repair, emergency fault diagnosis and installation across Greenford, Ealing, Slough, Reading, Windsor, Uxbridge, Weybridge, Maidenhead, Bracknell, Wokingham, High Wycombe, Beaconsfield, Gerrards Cross, Staines, Guildford and nearby towns. Same-day and next-day availability depends on engineer capacity and postcode.

Not sure if we cover your postcode? Book online and we’ll confirm, or call us directly.