--- title: "Boiler Servicing & Landlord CP12 in Acton — Gas Safe — Ash Villa Development Ltd" description: "Annual boiler servicing and landlord CP12 gas safety records in Acton, Ealing and West London. Gas Safe registered engineers. Keep your warranty valid and your bills lower." lang: en-GB json-ld: | [ { "@context": "https://schema.org", "@type": "Organization", "name": "Ash Villa Development Ltd", "legalName": "Ash Villa Development Ltd", "url": "https://ashvilladevelopment.net/", "telephone": "+44 7360 542683", "email": "info@ashvilladevelopment.co.uk", "founder": { "@type": "Person", "name": "Mustafa Abdulrahman Reid" }, "address": { "@type": "PostalAddress", "postalCode": "W3 8HL", "addressLocality": "Acton", "addressRegion": "London", "addressCountry": "GB" }, "areaServed": [ "Acton", "Ealing", "West Ealing", "Ealing Broadway", "Ealing Common", "East Acton", "North Acton", "Acton Central", "West London" ], "sameAs": [] }, { "@context": "https://schema.org", "@type": "WebSite", "name": "Ash Villa Development Ltd", "url": "https://ashvilladevelopment.net/", "inLanguage": "en-GB", "publisher": { "@type": "Organization", "name": "Ash Villa Development Ltd" } }, { "@context": "https://schema.org", "@type": "Service", "name": "Boiler Servicing & Landlord CP12 in Acton", "serviceType": "Boiler Servicing & Landlord CP12 in Acton", "provider": { "@type": "Plumber", "name": "Ash Villa Development Ltd", "telephone": "+44 7360 542683", "address": { "@type": "PostalAddress", "postalCode": "W3 8HL", "addressLocality": "Acton", "addressRegion": "London", "addressCountry": "GB" } }, "areaServed": [ "Acton", "Ealing", "West Ealing", "Ealing Broadway", "Ealing Common", "East Acton", "North Acton", "Acton Central", "West London" ], "description": "Annual boiler servicing and landlord CP12 gas safety records in Acton, Ealing and West London. Gas Safe registered engineers. Keep your warranty valid and your bills lower.", "url": "/services/boiler-servicing" }, { "@context": "https://schema.org", "@type": "FAQPage", "mainEntity": [ { "@type": "Question", "name": "How much does a boiler service cost?", "acceptedAnswer": { "@type": "Answer", "text": "Standard annual boiler service is quoted at booking based on boiler type and location. Landlord CP12 with one appliance is slightly higher because of the additional certification and reporting time." } }, { "@type": "Question", "name": "How long does a service take?", "acceptedAnswer": { "@type": "Answer", "text": "Around 45–60 minutes for a straightforward domestic combi. Landlord CP12s covering multiple appliances take a little longer." } }, { "@type": "Question", "name": "Do I have to service my boiler every year?", "acceptedAnswer": { "@type": "Answer", "text": "You're not legally required to, unless you're a landlord (CP12 is mandatory). But manufacturers require an annual service to keep the warranty valid — skip one and you lose the cover." } }, { "@type": "Question", "name": "Do you service every make of boiler?", "acceptedAnswer": { "@type": "Answer", "text": "Yes — all mainstream UK brands including Vaillant, Worcester Bosch, Ideal, Baxi, Glow-worm, Alpha and Potterton." } }, { "@type": "Question", "name": "What's the difference between a service and a CP12?", "acceptedAnswer": { "@type": "Answer", "text": "A service is a technical maintenance inspection of one appliance. A CP12 is a legal document certifying all gas appliances and pipework in a rental property are safe. We can do both in the same visit." } }, { "@type": "Question", "name": "Can you set up a reminder for next year?", "acceptedAnswer": { "@type": "Answer", "text": "Yes — homeowners get a courtesy reminder 11 months later; landlord CP12s are diarised automatically so you never miss the renewal." } } ] }, { "@context": "https://schema.org", "@type": "BreadcrumbList", "itemListElement": [ { "@type": "ListItem", "position": 1, "name": "Home", "item": "/" }, { "@type": "ListItem", "position": 2, "name": "Services", "item": "/services" }, { "@type": "ListItem", "position": 3, "name": "Boiler Servicing & Landlord CP12 in Acton", "item": "/services/boiler-servicing" } ] } ] --- New client offer: up to £500 gift voucher on qualifying Design & Build projects · 5% off for the person you refer West London · W3 8HL [mustafareid@gmail.com](mailto:mustafareid@gmail.com) 24/7 Emergency [07360 542683](tel:+447360542683) [![Ash Villa Development Ltd — Plumbing & Heating Services](/__l5e/assets-v1/9f1ea2d3-51e5-489f-83d5-65dd261d86cf/ash-villa-logo-new.png)](/) [Home](/) [About](/about) [Plumbing](/services) [Design & Build](/design-and-build) [Areas](/areas) [Our Work](/our-work) [Contact](/contact) [07360 542683](tel:+447360542683)[Request a Quote](/contact) [](tel:+447360542683) 1. [Home](/) 2. [Services](/services) 3. Boiler Servicing & Landlord CP12 in Acton Boiler Servicing · CP12 · Gas Safe # Annual boiler service by Gas Safe engineers. Warranty valid. Bills lower. A proper annual service keeps your manufacturer's warranty valid, catches small faults before they become winter breakdowns, and typically pays for itself in efficiency. Landlord CP12 Gas Safety Records issued on the day. [Get My Free Quote](/contact) [07360 542683](tel:+447360542683) Gas Safe · Manufacturer service intervals · Landlord CP12 · All major brands ![Gloved engineer holding a flue gas analyser probe at a white wall-mounted combi boiler with a CP12 gas safety record on the worktop — Ash Villa annual boiler servicing across West London](/assets/ash-villa-boiler-servicing-flue-analyser-COUHe5E5.jpg) 30+ Years in the Trade Gas Safe Registered Vaillant Approved Installer £2M Public & Employers' Liability 90-Minute Emergency Response Service Overview ## The plain-English version. What it is Annual boiler servicing to manufacturer specification on combi, system and heat-only boilers — plus landlord Gas Safety Records (CP12) for private landlords and letting agents. Who it's for Homeowners protecting a manufacturer warranty, landlords who need a CP12 issued for a new tenancy or annual renewal, and letting agents managing multiple properties. When you need it Every 12 months, without fail, to keep the manufacturer warranty valid. Landlords are legally required to renew the CP12 annually and before every new tenancy. Why use a professional Skipping the service voids most manufacturer warranties, invalidates landlord compliance, and lets small issues become expensive winter repairs. A service is the cheapest boiler maintenance you'll ever pay for. Left Too Long? ## Small problem now. Big bill later. The cheapest time to deal with a plumbing or heating fault is almost always now. Water damage, gas issues and system stress compound quickly — the invoice grows with them. If you leave it - › A missed annual service usually voids the manufacturer's warranty — so the next repair comes out of your pocket instead of theirs. - › Dirty combustion — often invisible without proper analyser readings — silently pushes gas consumption 10–15% higher every winter. - › Blocked condensate traps and sludged magnetic filters shorten pump life dramatically; both are checked on a proper service. - › For landlords, no valid CP12 is a criminal offence, invalidates the tenancy insurance and delays deposit protection paperwork. Common DIY mistakes - › A 'quick service' that skips flue gas analysis — you can't verify safe combustion by eye. - › Skipping the seal and gasket check, then finding a CO leak on the next service. - › Not cleaning the magnetic filter or inhibitor-checking the system water — the two things that most extend boiler life. - › Booking a CP12 the day the tenancy starts instead of a week before, leaving no time to fix any issue found. Our Process ## Predictable. Documented. Signed off. You get the same sequence every time — so there are no surprises on the invoice and nothing missed on the job sheet. 1. 01 ### Book a slot Homeowners: pick a convenient day. Landlords: we can schedule around tenant access and diarise the annual renewal for you. 2. 02 ### Visual & safety checks Case removed, appliance inspected for corrosion, leaks, correct clearances, flue integrity and CO alarm placement. 3. 03 ### Combustion analysis Flue gas analyser used to verify CO, CO₂ and ratio readings are within the manufacturer's tolerance — this is what proves the boiler is safe. 4. 04 ### Internal clean & checks Burner, heat exchanger surfaces, condensate trap, ignition electrodes and seals cleaned or replaced as needed. 5. 05 ### System side System pressure set, expansion vessel checked and re-pressurised if needed, magnetic filter cleaned, inhibitor level verified. 6. 06 ### Certificate & report Service record signed off; landlords receive a CP12 Gas Safety Record on the day. Any issues flagged with a quote before we leave. What You Actually Get ## Concrete outcomes, not marketing fluff. ### Keeps warranty valid Manufacturers require an annual service by a Gas Safe engineer as a condition of warranty. We do it, log it and give you the paperwork. ### Lower running costs A properly serviced boiler runs cleaner and hotter for less gas — typically 5–10% savings over a neglected unit over a full winter. ### Catches faults early Failing expansion vessels, weak pumps, sludged systems and CO risks show up on a service long before they become an emergency call-out. ### Landlord CP12 on the day Gas Safety Records issued at the appointment. Digital and printed copies for your records and the tenant. ### All major brands Vaillant, Worcester, Ideal, Baxi, Glow-worm, Alpha and others. Serviced to the manufacturer's service schedule, not a generic checklist. ### Honest reporting If your boiler is nearing end of life, we tell you honestly, so you can plan a replacement rather than be caught cold in January. The Detail ## Materials, methods, and where the money goes. A boiler service is a technical inspection, not a wipe-and-tick exercise. Here's what a real Gas Safe service includes and why each step matters. ### Flue gas analysis — the non-negotiable step The only way to verify a boiler is combusting cleanly and safely is to sample the flue gas with a calibrated analyser and check CO, CO₂ and the CO/CO₂ ratio against the manufacturer's published tolerance. Any service that skips this step isn't a service — it's a look-and-guess. ### Case-off inspection We remove the front cover and inspect the burner, heat exchanger fins, ignition and flame sensing electrodes, gaskets and seals for wear, corrosion or sooting. Anything worn is cleaned, adjusted or quoted for replacement — with your say-so before we spend a penny. ### System-side maintenance The boiler is only half of it. We check system pressure, re-pressurise and re-charge the expansion vessel where needed, clean the magnetic filter, and check inhibitor levels. These four items are where 90% of avoidable boiler failures start. ### Landlord CP12 specifics A Gas Safety Record (CP12) covers every gas appliance and pipe in the property, not just the boiler. We inspect and certify the cooker, hob, gas fire and pipework, log meter and appliance details and issue the record digitally and on paper. Records are legally required annually and before every new tenancy. Frequently Asked ## The questions we hear on the phone. Nothing here is generic — these are answers we give West London customers every week. [Ask us directly](tel:+447360542683) How much does a boiler service cost? Standard annual boiler service is quoted at booking based on boiler type and location. Landlord CP12 with one appliance is slightly higher because of the additional certification and reporting time. How long does a service take? Around 45–60 minutes for a straightforward domestic combi. Landlord CP12s covering multiple appliances take a little longer. Do I have to service my boiler every year? You're not legally required to, unless you're a landlord (CP12 is mandatory). But manufacturers require an annual service to keep the warranty valid — skip one and you lose the cover. Do you service every make of boiler? Yes — all mainstream UK brands including Vaillant, Worcester Bosch, Ideal, Baxi, Glow-worm, Alpha and Potterton. What's the difference between a service and a CP12? A service is a technical maintenance inspection of one appliance. A CP12 is a legal document certifying all gas appliances and pipework in a rental property are safe. We can do both in the same visit. Can you set up a reminder for next year? Yes — homeowners get a courtesy reminder 11 months later; landlord CP12s are diarised automatically so you never miss the renewal. ![Wet room tanking and waterproofing in progress at an Ash Villa Development project in West London](/__l5e/assets-v1/c6f1bc89-c340-43ef-8ce3-b4192014b083/ash-villa-wet-room-tanking-waterproofing-in-progress-16.jpg) Next Step ## Book a free on-site quote. Get a firm price in 2–3 days. No pressure, no obligation. A Gas Safe engineer visits, scopes the job in person, and puts a written quote in your inbox — usually within 2–3 working days. For emergencies, call the line — it's answered 24/7 by the team, not a call centre. [Request My Free Quote](/contact) [07360 542683](tel:+447360542683) Gas Safe · Manufacturer service intervals · Landlord CP12 · All major brands Keep Exploring ## Related pages [Homepage ](/)[General Plumbing ](/services/plumbing)[24/7 Emergency Plumbing ](/services/emergency-plumbing)[Boiler Installations ](/services/boiler-installation)[Service areas ](/areas/acton)[Contact & quotes ](/contact) ![Ash Villa Development Ltd](/__l5e/assets-v1/9f1ea2d3-51e5-489f-83d5-65dd261d86cf/ash-villa-logo-new.png) West London plumbing, heating and design & build company based in Acton. Gas Safe registered, Vaillant approved installer, 30+ years in the trade. [07360 542683 ](tel:+447360542683) [07947 961502 Secondary](tel:+447947961502) [mustafareid@gmail.com](mailto:mustafareid@gmail.com) Acton, West London · W3 8HL 24/7 emergency line · office 8am–6pm #### Plumbing & Heating - [Plumbing](/services/plumbing) - [Emergency Plumbing (24/7)](/services/emergency-plumbing) - [Boiler Installations](/services/boiler-installation) - [Boiler Repairs](/services/boiler-repair) - [Boiler Servicing](/services/boiler-servicing) - [Central Heating & Radiators](/services/central-heating) - [Leak Detection & Repair](/services/leak-detection) - [Bathroom Installation](/services/bathroom-installation) - [Unvented Cylinder Installation](/services/unvented-cylinder-installation) - [Gas Safety Certificates (CP12)](/services/gas-safety-certificate) - [Central Heating Powerflush](/services/powerflush) #### Design & Build - [Design & Build overview](/design-and-build) - [Refurbishments](/design-and-build/refurbishments) - [Loft Conversions](/design-and-build/loft-conversions) - [Extensions](/design-and-build/extensions) - [Kitchens](/design-and-build/kitchens) #### Areas Covered - [Acton (W3)](/areas/acton) - [Ealing (W5)](/areas/ealing) - [West Ealing](/areas/west-ealing) - [Ealing Broadway](/areas/ealing-broadway) - [Ealing Common](/areas/ealing-common) - [East Acton](/areas/east-acton) - [North Acton](/areas/north-acton) - [Acton Central](/areas/acton-central) #### Company - [About](/about) - [Our Work](/our-work) - [Contact](/contact) - [Privacy Policy](/privacy-policy) - [Cookie Policy](/cookie-policy) - [Terms & Conditions](/terms-conditions) Gas Safe registered Vaillant approved installer G3 unvented cylinder qualified £2M Public & Employers' Liability © 2026 Ash Villa Development Ltd. 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