--- title: "Same-Day Boiler Repair in Corby & Kettering | Reactive" description: "Boiler broken down in Corby, Kettering or Northants? Same-day diagnosis on Worcester, Vaillant, Ideal, Baxi & Glow-worm. Fixed price, no callout fee." lang: en-GB json-ld: | [ { "@context": "https://schema.org", "@type": "FAQPage", "mainEntity": [ { "@type": "Question", "name": "How fast can you get to me?", "acceptedAnswer": { "@type": "Answer", "text": "Local jobs (Corby, Kettering, Wellingborough): same day in most cases, usually within 4 hours of your call. Outside that ring: same day or next-morning depending on workload." } }, { "@type": "Question", "name": "Do you charge a callout fee?", "acceptedAnswer": { "@type": "Answer", "text": "No standalone callout fee. The diagnosis charge covers travel, inspection and the first hour. If you go ahead with the repair, the diagnosis fee is included — you don't pay it twice." } }, { "@type": "Question", "name": "Can you fix it on the first visit?", "acceptedAnswer": { "@type": "Answer", "text": "Around 85% of repairs are first-visit fixes because we carry the most-replaced parts for Worcester, Vaillant, Ideal, Baxi and Glow-worm in van stock. Specialist parts sometimes need overnight order." } }, { "@type": "Question", "name": "My boiler is still under warranty — should I call you or the manufacturer?", "acceptedAnswer": { "@type": "Answer", "text": "Always check the warranty first — most are honoured by the manufacturer's own engineer. We can also work on warranty claims as a registered installer for some brands. Call us, and we'll tell you which route is fastest for you." } }, { "@type": "Question", "name": "Is it worth repairing a 12-year-old boiler?", "acceptedAnswer": { "@type": "Answer", "text": "Sometimes. If the fault is a small part and the rest of the boiler is healthy, yes. If it's a major component (PCB, heat exchanger) and the boiler is end-of-life inefficient, you'll often pay for a new boiler in a few winters of fuel saving. We give honest maths." } }, { "@type": "Question", "name": "Will you work on my LPG or oil boiler?", "acceptedAnswer": { "@type": "Answer", "text": "Yes — Our engineers are OFTEC registered for oil and Gas Safe registered for LPG. Same diagnostic approach, same fixed-price model." } }, { "@type": "Question", "name": "Why does my boiler keep losing pressure?", "acceptedAnswer": { "@type": "Answer", "text": "Almost always a system leak — radiator valve, pipework, or expansion vessel failure inside the boiler. We pressure-test and locate the cause as part of diagnosis." } }, { "@type": "Question", "name": "Is the repair guaranteed?", "acceptedAnswer": { "@type": "Answer", "text": "12-month workmanship guarantee on every repair. If the same component fails within that period, we replace it free of charge." } } ] }, { "@context": "https://schema.org", "@type": "Service", "@id": "https://reactiveplumbing.co.uk/boiler-repair#service", "name": "Same-Day Boiler Repair in Corby & Kettering", "serviceType": "Same-Day Boiler Repair in Corby & Kettering", "description": "Boiler broken down in Corby, Kettering or Northants? Same-day diagnosis on Worcester, Vaillant, Ideal, Baxi & Glow-worm. Fixed price, no callout fee.", "url": "https://reactiveplumbing.co.uk/boiler-repair", "provider": { "@id": "https://reactiveplumbing.co.uk/#localbusiness" }, "areaServed": [ { "@type": "City", "name": "Corby" }, { "@type": "City", "name": "Kettering" }, { "@type": "City", "name": "Desborough" }, { "@type": "City", "name": "Rothwell" }, { "@type": "City", "name": "Oundle" }, { "@type": "City", "name": "Market Harborough" }, { "@type": "City", "name": "Wellingborough" }, { "@type": "City", "name": "Oakham" }, { "@type": "City", "name": "Stamford" }, { "@type": "City", "name": "Peterborough" } ], "offers": [ { "@type": "Offer", "name": "Diagnosis + minor repair", "priceCurrency": "GBP", "priceSpecification": { "@type": "PriceSpecification", "price": "Fixed price", "priceCurrency": "GBP" }, "description": "Visit, diagnosis, simple repair (PRV reset, condensate clear, minor sensor)." }, { "@type": "Offer", "name": "Standard part replacement", "priceCurrency": "GBP", "priceSpecification": { "@type": "PriceSpecification", "price": "Fixed price", "priceCurrency": "GBP" }, "description": "Diverter valve, fan, expansion vessel, ignition lead, gaskets — quoted before work starts." }, { "@type": "Offer", "name": "Major part replacement", "priceCurrency": "GBP", "priceSpecification": { "@type": "PriceSpecification", "price": "Fixed price", "priceCurrency": "GBP" }, "description": "PCB, pump, heat exchanger swap. Quoted properly before order." } ] }, { "@context": "https://schema.org", "@type": "BreadcrumbList", "itemListElement": [ { "@type": "ListItem", "position": 1, "name": "Home", "item": "https://reactiveplumbing.co.uk" }, { "@type": "ListItem", "position": 2, "name": "Heating & Gas Services", "item": "https://reactiveplumbing.co.uk/heating-gas-services" }, { "@type": "ListItem", "position": 3, "name": "Same-Day Boiler Repair in Corby & Kettering", "item": "https://reactiveplumbing.co.uk/boiler-repair" } ] }, { "@context": "https://schema.org", "@type": "Person", "name": "Carl Eddershaw", "jobTitle": "Director & Lead Engineer", "worksFor": { "@id": "https://reactiveplumbing.co.uk/#localbusiness" }, "knowsAbout": [ "Gas Safe Registered", "Worcester Accredited", "Vaillant trained", "Ideal Heating trained", "OFTEC for oil boilers" ] } ] --- Gas Safe Registered · OFTEC Registered · Checkatrade Verified 9 Rutherford Court, Corby NN17 4SJ [info@reactiveph.co.uk](mailto:info@reactiveph.co.uk) [![Reactive Gas Heating & Plumbing logo](/__l5e/assets-v1/51d713a4-18a4-4b5f-96fb-2fcce169e56c/reactive-logo.png)](/) ServicesAreasGuides[About](/about)[Our Work](/our-work)[Plans](/maintenance-plans)[Reviews](/reviews)[Contact](/contact) [24/7 Call 07915 906262 ](tel:+447915906262)[Fixed Boiler Quote](/boiler-quote) 1. [Home](/) 2. [Heating & Gas Services](/heating-gas-services) 3. Same-Day Boiler Repair Heating & Gas Services # Same-Day Boiler Repair in CorbyWorcester, Vaillant, Ideal, Baxi & more fixed price before any work starts When the heating's off and the kids are cold, you want someone diagnosing today — not booking you in for next week. Most boiler breakdowns we see are diagnosed in the first hour and fixed in the first visit, on a fixed price. [Enquire Now](/contact) [Call 07915 906262](tel:+447915906262) - Same-day diagnosis - All major brands - Fixed price up front - 12-month repair guarantee Same day Diagnosis (local) 85%+ Fixed first visit All brands Worcester, Vaillant, Ideal... 12 mo Repair guarantee Boiler repair — combi, system, regular, LPG & oil ## Diagnosis first, parts second, repair on the spot where possible Boiler breakdowns split into roughly six categories: ignition failure (no spark, no flame), flow failure (pump, diverter valve, sticking valve), pressure loss (system leak, expansion vessel, PRV), control failure (PCB, sensors, fan), gas supply issue, and condensate freeze in winter. Each has a different fix and a different parts cost. We diagnose by symptom first, fault code second. Fault codes tell you what the boiler thinks is wrong — not always what's actually wrong. A skilled engineer reads the code, then verifies physically before ordering parts. Around 85% of repairs we attend are completed in the first visit, because the van carries the most-replaced parts as standard: diverter valves, PCBs for common Worcester / Vaillant / Ideal models, fans, ignition leads, expansion vessels, PRVs, gaskets and pumps. Specialist parts (e.g. a specific Vaillant flow turbine) sometimes need overnight delivery. What happens if you wait ## Cold house in January isn't a one-week problem A boiler down in summer is an inconvenience. A boiler down in January with a vulnerable household is a safety issue. We prioritise no-heat callouts, especially for elderly residents and homes with young children — and you'll get an honest answer on time-to-arrival within minutes of calling. DIY 'fixes' (resetting repeatedly, increasing pressure, opening the casing) almost always make the diagnosis harder and the repair more expensive. Stop trying after one reset attempt — call. - Pressure dropping after each top-up — system leak, not a boiler fault - Repeated resets without finding root cause — masking a sensor failure - Opening the casing — invalidates warranty, risks electric shock - 'My friend says it's the PCB' — fault codes need verifying, not guessing - Ignoring fault codes for weeks — turns a small sensor swap into a much larger PCB or heat exchanger job - Buying the part online and asking us to fit it — we won't, for warranty reasons Our process ## From first call to job done — exactly what to expect 1. 01 ### Symptom intake On the phone, we ask the right questions: error code, when it started, what works/doesn't. Often we know the likely fault before arriving. 2. 02 ### On-site diagnosis Visual inspection, electrical testing, gas supply check, flue gas analysis where relevant. Diagnosis confirmed, not assumed. 3. 03 ### Quote the fix Fixed price for the repair, in writing, before parts come off the van or are ordered. You decide before we proceed. 4. 04 ### Repair Most repairs done same-day from van stock. Specialist parts ordered overnight where needed. 5. 05 ### Test & guarantee Gas tightness, flue gas analysis, system pressure, controls function tested. 12-month repair guarantee in writing. Why customers choose Reactive ## No guesswork. No upsell. Just the work, done right. - ### Same-day diagnosis Local jobs (Corby, Kettering, Wellingborough) attended same day, often within 4 hours. - ### Stocked van Diverter valves, PCBs, fans, PRVs, expansion vessels, pumps for common boilers — fitted same visit. - ### Fixed price up front You see the repair price before anything is ordered or fitted. No hourly meter. - ### 12-month repair guarantee If the same component fails again within 12 months, we replace it free. - ### All major brands Worcester, Vaillant, Ideal, Baxi, Glow-worm, Vokera, Potterton, Ferroli — and LPG/oil. - ### Honest 'replace, don't repair' if true If a 12-year-old boiler needs major parts, we'll tell you. A new install often pays back faster than a repair. ![Open boiler showing internal heat exchanger, gas valve and PCB with engineer hand holding replacement diverter valve](/__l5e/assets-v1/20bb6542-a0f0-4f48-8177-13f7835b3333/img-006.jpeg) In detail ## Common faults by brand — what we see most often in Northants Worcester Greenstar boilers (the most common in our patch) usually fail at the diverter valve cartridge between years 5 and 9 — symptom is hot water working but central heating not, or vice versa. Quoted as a fixed-price repair, normally fixable same visit. PCB failures appear later, around year 10–12. Vaillant ecoTec models we see most often for fan failures (rumbling on startup, eventual lockout) and condensate trap blockages in winter. Both are first-visit fixes. The flow turbine is the other recurring Vaillant fault — reads zero hot-water flow when the tap is open. Ideal Logic boilers have a known weak spot at the printed circuit board around years 6–8 — we carry the replacement PCB for the Logic+, Logic Combi and Logic Heat. Baxi Duo-tec and Glow-worm Energy boilers most commonly fail at the diverter valve and the fan respectively. - ### Worcester Greenstar Diverter valve cartridge most common. PCB and fan less common but stocked. - ### Vaillant ecoTec Fan, condensate trap, flow turbine. We carry common spares. - ### Ideal Logic PCB around years 6–8. Diverter valve and fan also common. - ### Baxi Duo-tec Diverter valve, fan, PCB. All standard van spares. - ### Glow-worm Energy Fan and ignition leads most frequent. Pump less common. - ### Older Potterton & Ferroli Often parts-availability questions — we'll be straight on whether repair is viable. Honest pricing ## How much does boiler repair cost in Corby & Northants? Diagnosis fee is consistent; the parts cost depends on the fault. You always see and approve the parts price before we order or fit anything. Diagnosis + minor repair Fixed price Visit, diagnosis, simple repair (PRV reset, condensate clear, minor sensor). Standard part replacement Fixed price Diverter valve, fan, expansion vessel, ignition lead, gaskets — quoted before work starts. Major part replacement Fixed price PCB, pump, heat exchanger swap. Quoted properly before order. ### What changes the price - Brand, model and age of boiler - Specific fault and parts required - Whether the boiler is still under manufacturer warranty (we can claim if so) - Out-of-hours premium for emergency call-outs - Whether system condition contributed (sludge, no inhibitor) - Replacement vs. repair viability on older boilers Free, fixed-price quote — no obligation, no callout fee. [Get my fixed price](/contact) Areas covered ## Local cover across Northants & Rutland Boiler repair is what gets us called daily across the Northants and Rutland patch — Corby base, regular jobs in Kettering, Wellingborough, Market Harborough, Oundle and Oakham. We carry spares for every common make. - [Boiler repair in Corby ](/areas/corby) - [Same-day boiler repair Kettering ](/areas/kettering) - [Boiler breakdown Wellingborough ](/areas/wellingborough) - [Boiler repair Oakham ](/areas/oakham) Who'll be doing the work ## The Reactive engineering team We've worked on every common UK domestic boiler and most of the uncommon ones. Manufacturer training records updated annually. If a repair is borderline, you get the honest 'repair vs replace' maths — not the answer that maximises our invoice. - Gas Safe Registered - Worcester Accredited - Vaillant trained - Ideal Heating trained - OFTEC for oil boilers FAQs ## Questions we actually get asked Anything not covered here? Pick up the phone — straight talk, no salesperson in the middle. [Call 07915 906262](tel:+447915906262) ### ### How fast can you get to me? ### ### Do you charge a callout fee? ### ### Can you fix it on the first visit? ### ### My boiler is still under warranty — should I call you or the manufacturer? ### ### Is it worth repairing a 12-year-old boiler? ### ### Will you work on my LPG or oil boiler? ### ### Why does my boiler keep losing pressure? ### ### Is the repair guaranteed? Related services [ In this category Fixed-price boiler installation ](/boiler-installation)[ In this category Annual boiler service ](/boiler-servicing)[ In this category LPG boiler & pipework ](/lpg-engineer)[ You may also need Pressure loss leak detection ](/leak-detection-repair)[ Back to hub All Heating & Gas Services ](/heating-gas-services) Ready when you are ## Boiler down? Diagnosed today. Same-day local diagnosis, fixed price before any parts are ordered, 12-month guarantee on every repair. [Enquire Now](/contact) [07915 906262](tel:+447915906262) Last updated May 2026 · Reactive Gas Heating and Plumbing Services Limited · 9 Rutherford Court, Corby NN17 4SJ · Gas Safe Registered · OFTEC Registered · Checkatrade Verified [![Reactive Gas Heating & Plumbing logo](/__l5e/assets-v1/51d713a4-18a4-4b5f-96fb-2fcce169e56c/reactive-logo.png)](/) Reactive Gas Heating and Plumbing Services Limited. Plumbing, heating and gas engineers based in Corby — covering Northamptonshire, Rutland, Leicestershire and the East Midlands. [07915 906262 ](tel:+447915906262) [0800 861 1593 (freephone)](tel:+448008611593) [07488 883576](tel:+447488883576) [07342 043953](tel:+447342043953) [info@reactiveph.co.uk](mailto:info@reactiveph.co.uk) 9 Rutherford Court Corby, Northamptonshire NN17 4SJ [](https://www.facebook.com/Reactiveservices/)[](https://www.instagram.com/reactivegasheatingplumbing/) ### [Plumbing](/plumbing-services) - [Emergency Plumbing](/emergency-plumbing) - [Drain Unblocking & Drainage](/drain-unblocking) - [Leak Detection & Repair](/leak-detection-repair) - [Power Flushing](/power-flushing) ### [Heating & Gas](/heating-gas-services) - [Boiler Installation](/boiler-installation) - [Boiler Repair & Breakdown](/boiler-repair) - [Boiler Servicing](/boiler-servicing) - [LPG Installation & Servicing](/lpg-engineer) - [Oil Boiler Installation & Servicing](/oil-boiler-engineer) ### [Areas Covered](/areas) - [Corby](/areas/corby) - [Kettering](/areas/kettering) - [Desborough](/areas/desborough) - [Rothwell](/areas/rothwell) - [Oundle](/areas/oundle) - [Market Harborough](/areas/market-harborough) - [Wellingborough](/areas/wellingborough) - [Oakham](/areas/oakham) - [Stamford](/areas/stamford) - [Peterborough](/areas/peterborough) ### Company - [About our team](/about) - [Customer Reviews](/reviews) - [Recent Work](/our-work) - [Maintenance Plans](/maintenance-plans) - [Current Offers](/specials) - [Contact](/contact) - [Privacy Policy](/privacy-policy) - [Terms & Conditions](/terms-conditions) ### Opening Hours - Monday: 08:00–18:00 - Tuesday: 08:00–18:00 - Wednesday: 08:00–18:00 - Thursday: 08:00–18:00 - Friday: 08:00–18:00 - Saturday: 08:00–13:00 - Sunday: Closed - 24/7 emergency cover — call any time outside working hours ### Guides & Blog - [Combi vs System vs Regular Boilers: Which Is Right for You?](/guides/combi-vs-system-vs-regular-boilers) - [How Much Does a New Boiler Cost in 2026?](/guides/how-much-does-a-new-boiler-cost) - [8 Signs You Need a New Boiler (Not Just a Repair)](/guides/signs-you-need-a-new-boiler) - [Common Boiler Fault Codes Explained](/guides/common-boiler-fault-codes-explained) - [What to Do in a Plumbing Emergency](/guides/what-to-do-in-a-plumbing-emergency) - [How to Turn Off Your Water at the Mains](/guides/how-to-turn-off-water-at-the-mains) © 2026 Reactive Gas Heating and Plumbing Services Limited. 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