Vaillant boiler repair, servicing and installation in Stratford-upon-Avon in Stratford-upon-Avon Vaillant
Vaillant ecoTEC boilers are all over Stratford-upon-Avon and the surrounding Warwickshire area, and their fault codes are refreshingly specific. We repair, service and install the ecoTEC and ecoFIT ranges.
No call-out fee on booked jobs · Written price before any work starts · Same day where we can
Accredited & approved
Registered engineers, manufacturer-approved brands
Vaillant engineers in Stratford-upon-Avon
Working on Vaillant boilers every week
Vaillant boilers tell you a lot when they go wrong. An F22, F28 or F75 narrows the problem down quickly, which means less time hunting and more time fixing. We work on ecoTEC plus, ecoTEC pro, ecoFIT pure and the older ecoTEC exclusive. Serving Stratford-upon-Avon and the surrounding Warwickshire area.
Most Vaillant call-outs we attend fall into a handful of categories: pressure loss, ignition failure, pump or pressure sensor faults, and diverter valves that have stopped moving. All of them are testable rather than guesswork.
We service Vaillant boilers to the manufacturer's schedule so warranty cover stays intact, and we install new ecoTEC and ecoFIT boilers with the warranty registered for you.
Vaillant hold their value as an appliance, so where a Vaillant is repairable we will usually say so rather than push a replacement.
Common signs to look out for
- ecoTEC and ecoFIT repairs and fault diagnosis
- F22, F28 and F75 lockouts resolved properly
- Annual servicing to Vaillant's schedule
- New ecoTEC installation and registration
- Pressure sensor, pump and diverter replacement
- Expansion vessel and PRV faults corrected
Vaillant specialists
Book a Vaillant repair or service
Speak to a real Warwickshire engineer, no call centres.


Gas Safe registered engineers, workmanship guaranteed.
Local · Trusted · Insured
Our work
Recent jobs across Warwickshire
A snapshot of the work we've completed lately, tidy, guaranteed and signed off end-to-end.







How we work
A simple, honest process
- 1
Tell us the model and code
Give us the Vaillant model and anything showing on the display, and we can often arrive with the right part.
- 2
Diagnose on site
Pressures, gas rate, combustion, circulation and controls tested properly instead of parts being swapped on a hunch.
- 3
Agree the work
The fault explained in plain terms, with the cost agreed before anything is fitted.
- 4
Repair, test, record
Genuine parts where we can, everything retested, and a written record left with you.
Vaillant problem?
Talk to a Vaillant engineer
Tell us the model and the code on the display and we can usually come prepared.
Models we cover
Vaillant ranges we work on

- ecoTEC plus
- ecoTEC pro
- ecoFIT pure
- ecoTEC exclusive
Vaillant specialists
Book a Vaillant repair or service
Speak to a real Warwickshire engineer, no call centres.
Servicing and warranty
Keeping your Vaillant warranty valid
Vaillant warranties require an annual service by a registered engineer with the service record completed. Miss a year and the cover can be refused when you most need it.
We follow the manufacturer's own service schedule, test combustion with a calibrated analyser and leave a written record every visit, which is also the paperwork a buyer's surveyor will ask for later.
For landlords we combine the Vaillant service with the CP12 gas safety check on a single visit and email both documents the same day.

Vaillant specialists
Book a Vaillant repair or service
Speak to a real Warwickshire engineer, no call centres.
What customers say
Trusted by Warwickshire homeowners
Read all 85+ reviews5.0 / 5
Based on 85+ Google reviews
"Replaced our ageing boiler and rebalanced the whole system. Quiet, efficient, and the radiators have never been hotter. Exceptional service from start to finish."E. HargreavesWarwick
"Fitted a new combi boiler and re-piped our airing cupboard. Immaculate workmanship and left the house spotless. Genuinely the best tradesman we've had."S. PatelLeamington Spa
"Annual landlord gas safety checks across our portfolio, always on time, paperwork in order, tenants happy. Highly professional outfit."D. AllenWarwickshire
Coverage
Also covering near Stratford-upon-Avon
Same-team engineers across the county. If your town isn't listed, give us a call, we cover most Warwickshire postcodes.
Answers
Frequently asked questions
What Stratford-upon-Avon homeowners ask us about Vaillant boilers.
Yes. ecoTEC plus, ecoTEC pro, ecoFIT pure and older ecoTEC exclusive models. Tell us the fault code when you call and we can usually arrive with the right part.
F22 is low pressure. Topping up treats the symptom. The cause is a leak, a failed expansion vessel or a passing pressure relief valve, and until that is found the pressure will keep dropping.
Yes, provided the boiler is serviced annually by a Gas Safe registered engineer with the service record completed. That is exactly what we do.
Yes for current ranges, and we carry the common ones. Parts for much older Vaillant models can be slower, and we will tell you honestly if availability is becoming the real problem.
Yes, sized from a proper heat loss calculation, installed cleanly and registered with Vaillant so the full warranty runs from day one.
Ready when you are
Three easy ways to start
- Call +44 7716 439591
Call us
Speak to an engineer directly. Most faults can be narrowed down in a two-minute chat.
- Message on WhatsApp
WhatsApp us
Send a photo of the boiler and the fault code, we'll come back with a same-day quote.
- Send job details
Full quote request
Tell us the brand, symptoms and any fault codes. Written price back within one working day.
Send us the details
Request a straight-talking quote
Tell us what's happening, brand, symptoms, how long, any fault codes. We'll come back with a clear price and next steps.
Fault codes
Common Vaillant fault codes
What the display is telling you, and what usually causes it. Reset once. If it locks out again, note the code and call us rather than resetting repeatedly.
A leak, a failed expansion vessel, a passing pressure relief valve or a faulty pressure sensor.
Read the full F22 guideGas supply or gas valve, ignition electrodes and leads, blocked condensate, or a flame sensing fault.
Read the full F28 guideFailed pressure sensor, air locked or seized pump, or low system pressure.
Read the full F75 guideFaulty flame sensing electrode, damp in the boiler or a gas valve leaking through.
Interrupted gas supply, blocked condensate, or an earthing and ionisation problem.
Ready when you are
Speak to a Warwickshire engineer
Call, WhatsApp or request a written quote, whichever is easiest.




