--- title: "Consumer Unit Replacement Oxford & Kidlington | 18th-Edition Fuse Box Upgrade — D.P.L Electrical" description: "NAPIT consumer unit upgrade in Kidlington, Oxford, Witney, Banbury & Bicester. Modern 18th-edition RCBO board fitted in under a day. Fixed price, free quote." lang: en-GB json-ld: | [ { "@context": "https://schema.org", "@type": "Electrician", "@id": "/#organization", "name": "D.P.L Electrical Services", "legalName": "D.P.L Electrical Services", "url": "/", "logo": "/favicon.png", "image": "/favicon.png", "telephone": "+447479274302", "email": "Info@dpl-electrical.co.uk", "founder": { "@type": "Person", "name": "Daniel Leggett" }, "foundingDate": "2018", "taxID": "11444366", "address": { "@type": "PostalAddress", "streetAddress": "South Ave", "addressLocality": "Kidlington", "addressRegion": "Oxfordshire", "postalCode": "OX5 1DQ", "addressCountry": "GB" }, "areaServed": [ "Oxfordshire", "Buckinghamshire", "Berkshire", "Wiltshire", "Gloucestershire", "Oxford", "Witney", "Banbury", "Bicester" ], "openingHoursSpecification": [ { "@type": "OpeningHoursSpecification", "dayOfWeek": "Monday", "opens": "08:00", "closes": "17:00" }, { "@type": "OpeningHoursSpecification", "dayOfWeek": "Tuesday", "opens": "08:00", "closes": "17:00" }, { "@type": "OpeningHoursSpecification", "dayOfWeek": "Wednesday", "opens": "08:00", "closes": "17:00" }, { "@type": "OpeningHoursSpecification", "dayOfWeek": "Thursday", "opens": "08:00", "closes": "17:00" }, { "@type": "OpeningHoursSpecification", "dayOfWeek": "Friday", "opens": "08:00", "closes": "17:00" }, { "@type": "OpeningHoursSpecification", "dayOfWeek": "Saturday", "opens": "08:00", "closes": "17:00" }, { "@type": "OpeningHoursSpecification", "dayOfWeek": "Sunday", "opens": "08:00", "closes": "13:00" } ], "sameAs": [ "https://www.facebook.com/D.P.L.ElectricalServices", "https://www.instagram.com/d.p.l_electricalservices", "https://x.com/dplelectricals1" ] }, { "@context": "https://schema.org", "@type": "WebSite", "@id": "/#website", "name": "D.P.L Electrical Services", "url": "/", "publisher": { "@id": "/#organization" }, "inLanguage": "en-GB" }, { "@context": "https://schema.org", "@type": "Service", "serviceType": "Consumer Unit Upgrades", "name": "Consumer Unit Upgrades — D.P.L Electrical", "description": "NAPIT consumer unit upgrade in Kidlington, Oxford, Witney, Banbury & Bicester. Modern 18th-edition RCBO board fitted in under a day. Fixed price, free quote.", "url": "https://dpl-electrical.co.uk/services/consumer-unit-upgrades", "provider": { "@type": "Electrician", "name": "D.P.L Electrical Services", "telephone": "+447479274302", "email": "Info@dpl-electrical.co.uk", "address": { "@type": "PostalAddress", "streetAddress": "South Ave", "addressLocality": "Kidlington", "addressRegion": "Oxfordshire", "postalCode": "OX5 1DQ", "addressCountry": "GB" } }, "areaServed": [ { "@type": "AdministrativeArea", "name": "Oxfordshire" }, { "@type": "City", "name": "Oxford" }, { "@type": "City", "name": "Kidlington" }, { "@type": "City", "name": "Witney" }, { "@type": "City", "name": "Banbury" }, { "@type": "City", "name": "Bicester" } ], "offers": { "@type": "Offer", "availability": "https://schema.org/InStock", "priceCurrency": "GBP", "url": "https://dpl-electrical.co.uk/contact" } }, { "@context": "https://schema.org", "@type": "FAQPage", "mainEntity": [ { "@type": "Question", "name": "How much does a consumer unit upgrade cost in Oxford?", "acceptedAnswer": { "@type": "Answer", "text": "Typical Oxfordshire pricing: like-for-like RCBO board £650–£850; board + earthing upgrade £850–£1,100; board + EV-ready feed £950–£1,300; HMO board with AFDD £1,100–£1,500. Fixed price after a free survey." } }, { "@type": "Question", "name": "How long does the install take?", "acceptedAnswer": { "@type": "Answer", "text": "Most boards are fitted, tested and certified in a single working day. Power is off for 2–4 hours in total — the rest of the day the rest of the house is back live." } }, { "@type": "Question", "name": "Will I lose power for long?", "acceptedAnswer": { "@type": "Answer", "text": "Power is isolated only while the board is physically being swapped — typically 2–4 hours mid-day. Fridges and freezers are fine for that window. Routers come back up automatically." } }, { "@type": "Question", "name": "Do you certify the work?", "acceptedAnswer": { "@type": "Answer", "text": "Yes. NAPIT Electrical Installation Certificate plus Part P notification to your local Building Control — both PDFs in your inbox the same day." } }, { "@type": "Question", "name": "What happens if my earthing or bonding isn’t up to standard?", "acceptedAnswer": { "@type": "Answer", "text": "We tell you on the survey, quote the remediation as a separate line, and do both in the same visit. A board upgrade without earth/bonding remediation can’t be certified cleanly." } }, { "@type": "Question", "name": "How long will a new board last?", "acceptedAnswer": { "@type": "Answer", "text": "Modern metal Amendment-2 boards have a design life of 25–30+ years. Fitted today, you’re unlikely to replace it before the 2050s." } }, { "@type": "Question", "name": "Can you do an emergency board upgrade?", "acceptedAnswer": { "@type": "Answer", "text": "Yes — same-day or next-day call-outs are available across Oxfordshire when an EICR fail or active fault forces an urgent replacement." } }, { "@type": "Question", "name": "Will it support a future EV charger or solar PV?", "acceptedAnswer": { "@type": "Answer", "text": "Yes — every board we specify is sized and configured for an EV charger feed and Type-B-compatible RCBO for solar/battery G99 export. EV-ready specification on request at no extra cost." } } ] }, { "@context": "https://schema.org", "@type": "BreadcrumbList", "itemListElement": [ { "@type": "ListItem", "position": 1, "name": "Home", "item": "https://dpl-electrical.co.uk/" }, { "@type": "ListItem", "position": 2, "name": "Services", "item": "https://dpl-electrical.co.uk/services" }, { "@type": "ListItem", "position": 3, "name": "Consumer Unit Upgrades", "item": "https://dpl-electrical.co.uk/services/consumer-unit-upgrades" } ] } ] --- Kidlington, Oxfordshire [Info@dpl-electrical.co.uk](mailto:Info@dpl-electrical.co.uk)Mon–Sat 8am–5pm · Sun 8am–1pm [Info@dpl-electrical.co.uk](mailto:Info@dpl-electrical.co.uk) [![D.P.L Electrical Services](/__l5e/assets-v1/91b0e4c0-9fb3-448f-8263-9a267475271b/dpl-logo.png)](/) ServicesService Areas[About](/about)[Our Work](/our-work)[Reviews](/reviews)[Contact](/contact) [Info@dpl-electrical.co.uk](mailto:Info@dpl-electrical.co.uk)[Request Estimate](/contact) ![Open 18th-edition domestic consumer unit with RCDs, MCBs and neatly dressed cabling next to insulated screwdrivers — consumer unit upgrade by D.P.L Electrical Services](/__l5e/assets-v1/15cf0ba5-e23b-4d9d-b3c2-fd01b1502e62/work-51.jpg) [Home](/)[Services](/services)Consumer Unit Upgrades Consumer Unit Upgrades · Oxfordshire · 18th Edition # Consumer unit upgrades across Oxfordshire, fitted in a day — safer protection by tea-time. Modern Amendment-2 metal consumer units with RCBO protection per circuit, surge protection and AFDD where appropriate. Fitted by a NAPIT-registered electrician in a single working day, certificated and notified to Building Control on your behalf. [Get My Free Quote](/contact) [07479 274302](tel:+447479274302) [Info@dpl-electrical.co.uk](mailto:Info@dpl-electrical.co.uk) over 25 years upgrading Oxfordshire fuse boxes · NAPIT certified · Same-day install · Fixed price. At a glance - Install time 1 working day - Power off 2–4 hrs total - Standard BS 7671 A2:2022 - Certificate NAPIT EIC [Request Estimate](/contact) NAPIT Registered Electrician Fixed Price Quote 25+ Years Experience Same-Day Install Surge Protection Included Service Overview ## A modern board does what an old fuse box can’t. Your consumer unit (the ‘fuse box’) is the single most important safety device in the home. A modern Amendment-2 board trips a fault in under 40 milliseconds — a 1970s rewireable fuse can take three seconds. That difference is the difference between a tripped circuit and a house fire. What it is Replacement of the existing fuse board with a current-edition metal consumer unit fitted with RCBO protection per circuit, integrated surge protection (SPD), and AFDD on circuits where the property risk profile warrants it. Includes earthing and main protective bonding upgrades where missing. Who it's for Homeowners with a rewireable fuse board, a 1990s plastic split-load unit, any board with no RCD on socket circuits, landlords resolving C2 codes on a failed EICR, and anyone planning an EV charger, solar PV or battery storage installation that requires a modern compliant board. When it's needed After a C2 fail on the EICR, before fitting an EV charger or solar PV, when a circuit trips repeatedly, when the existing board is plastic and you’re responsible for an HMO, or at the start of any wider renovation that touches the electrical installation. Why professional Plastic consumer units have been non-compliant in domestic settings since January 2016. Rewireable fuses have been functionally obsolete since the 1990s. A modern RCBO board protects every circuit independently — so a fault in one room doesn’t kill power to the whole house — and provides the only mounting point most surge protection and battery-control gear will accept. Why It Matters ## Old fuse boxes fail at the worst possible moment. The boards we replace most often are still ‘working fine’ — until the day the freezer trips during a heatwave, the EV charger refuses to commission, or the EICR flags a fail that holds up a sale. If you ignore it - Cable insulation failure from an unprotected over-current — a fuse that takes seconds can let a cable melt before it blows. - Fatal shock risk on any socket circuit without RCD protection — non-compliant since 2008. - Plastic-cased boards melting in a fault condition — banned in domestic settings since 2016 for this exact reason. - Surge damage from National Grid transients — burnt-out smart-home gear, AV, boilers and EV chargers running into thousands. - EV charger installations refused — a modern wallbox will not commission onto a non-compliant board. Common mistakes - ‘Splitting’ an old board into RCD-protected halves instead of full RCBO replacement — still leaves four circuits sharing one RCD. - Re-using ancient brown rubber tails because ‘they still work’ — a board upgrade with 50-year-old tails fails its certification. - Skipping the main protective bonding upgrade — board is new, earthing isn’t, certificate isn’t valid. - Choosing a board without SPD because ‘we’ve never had a power surge’ — until the day you do. - Letting a handyman fit a board to save money — Part P notification not lodged, insurance void, no certificate. Our Process ## Five steps from old fuse box to certified modern board. From phone call to certificate is typically 5–7 working days, with the install itself completed in a single visit — power restored by mid-afternoon, certificate by 6pm. 1. 01 ### Free same-day survey Our electrician attends, inspects existing board, earthing and bonding, photographs the install and confirms specification on the spot. 2. 02 ### Fixed-price quote Itemised quote covering the new board, RCBOs, SPD, AFDD (if specified), bonding upgrades and Part P notification fee. Valid 30 days. 3. 03 ### Pre-install paperwork Booking confirmed, Part P notification queued with the local authority, parts ordered to your spec. 4. 04 ### Same-day install & test Power isolated, old board removed, new board mounted, every circuit re-terminated and labelled, full BS 7671 test before re-energising. 5. 05 ### Certificate & sign-off NAPIT Electrical Installation Certificate issued, Part P notification lodged with Building Control, both PDFs in your inbox the same evening. The Benefits ## What a modern board actually delivers. Six concrete protections you do not have today if your board is older than 2008. ### Faster fault clearance RCBO trips in under 40 ms — fast enough to clear a fault before cable insulation, accessories or appliances heat up. ### Circuit-by-circuit safety A fault in the kitchen no longer trips the upstairs lights — every circuit independently protected. ### Longevity to 2050s A metal Amendment-2 board fitted today will be the last fuse box you ever need to buy for the property. ### Surge protection included SPD on the main switch protects everything downstream — saves the bill on AV gear, boilers, EVs and smart-home kit after the first local surge. ### EV & solar ready Modern wallboxes and inverters will not commission onto a non-compliant board — this upgrade unlocks both. ### Insurance peace of mind Part P notification on file with your local council, NAPIT certificate in your inbox — proof for any future insurer or buyer. Specifics & Detail ## What a consumer unit upgrade actually involves. Replacing a consumer unit isn’t just swapping the box — it’s rebuilding the central node of the electrical installation. Here’s what’s actually happening behind the cover plate. ### Materials we install - Hager Design 30 or Wylex Amendment-2 metal consumer unit - RCBO per circuit (Type A as standard, Type B for solar/EV) - Surge Protection Device (Type 2 SPD) on the main switch - AFDD on high-risk circuits where specified (bedrooms in HMOs) - 100A henley blocks, 25mm² brown/blue tails, 16mm² earth - Crabtree or Hager 100A main switch where required ### Methods & standards Old board photographed and labelled before disconnection. New board mounted level and plumb, every circuit re-terminated with torque-screwdriver settings, every conductor identified and dressed. Full inspection & test before re-energising — insulation resistance, RCD trip times, Zs at every circuit end. Schedule of circuits printed and stuck to the inside of the door. ### Variations of the service - Straight like-for-like upgrade (rewireable fuse to RCBO) - Upgrade plus main earth & bonding remediation - Upgrade plus EV charger commissioning - Upgrade plus solar / battery G99 compliance - Landlord/HMO board upgrade with AFDD on bedroom circuits - Garage/outbuilding sub-board paired with main upgrade ### Where this service applies 1970s–80s Kidlington and Oxford semis with original Wylex fuse boxes; 1990s estate homes in Witney, Banbury and Bicester with split-load boards; rental stock across Oxfordshire failing EICR for missing RCD coverage; pre-EV-charger installs in any property built before 2015. Frequently Asked ## Straight answers, before the visit. Can't see your question? Ring the team on [07479 274302](tel:+447479274302) — five-minute call, no obligation. [07479 274302](tel:+447479274302) [Info@dpl-electrical.co.uk](mailto:Info@dpl-electrical.co.uk)[Request Quote](/contact) How much does a consumer unit upgrade cost in Oxford? Typical Oxfordshire pricing: like-for-like RCBO board £650–£850; board + earthing upgrade £850–£1,100; board + EV-ready feed £950–£1,300; HMO board with AFDD £1,100–£1,500. Fixed price after a free survey. How long does the install take? Will I lose power for long? Do you certify the work? What happens if my earthing or bonding isn’t up to standard? How long will a new board last? Can you do an emergency board upgrade? Will it support a future EV charger or solar PV? Related Services ## Often booked alongside [ Domestic Electrical Installation New circuits, sockets, lighting and full installations across the home — finished tidy, certified, and signed off. ](/services/domestic-installation)[ Landlord EICRs Statutory landlord electrical safety certificates issued promptly — protect your tenants and stay legally compliant. ](/services/landlord-eicrs)[ Complete Domestic Rewires Full house rewires planned around your family — modern wiring, cleaner finish, fewer disruptions. ](/services/domestic-rewires)[ EV Charger Installation Domestic and commercial EV charge points installed and registered — OZEV-grade workmanship from day one. ](/services/ev-charger-installation) Local Coverage ## Consumer Unit Upgrades across Oxfordshire Same crew, same standard — covering Kidlington and the surrounding towns from a single Oxfordshire base. - [Consumer Unit Upgrades in Oxford 8 miles ](/service-areas/oxford) - [Consumer Unit Upgrades in Witney 10 miles ](/service-areas/witney) - [Consumer Unit Upgrades in Banbury 22 miles ](/service-areas/banbury) - [Consumer Unit Upgrades in Bicester 7 miles ](/service-areas/bicester) [All areas](/service-areas)[Contact](/contact) Book Consumer Unit Upgrades ## Consumer Unit Upgrade — surveyed, quoted and fitted by the same Oxfordshire crew. Free written estimate. No deposit. No call centre. Call before midday and we’ll be on site the same working day across Oxford, Witney, Banbury, Bicester and the wider Oxfordshire area. [Request My Estimate](/contact) [07479 274302](tel:+447479274302) [Info@dpl-electrical.co.uk](mailto:Info@dpl-electrical.co.uk) ![D.P.L Electrical Services](/__l5e/assets-v1/91b0e4c0-9fb3-448f-8263-9a267475271b/dpl-logo.png) NAPIT-registered electricians, covering Oxfordshire and surrounding counties — fast local response. [07479 274302 ](tel:+447479274302)[07528 364996 Alt ](tel:+447528364996)[Info@dpl-electrical.co.uk](mailto:Info@dpl-electrical.co.uk) South Ave, Kidlington, OX5 1DQ Opening Hours Monday 8am–5pm Tuesday 8am–5pm Wednesday 8am–5pm Thursday 8am–5pm Friday 8am–5pm Saturday 8am–5pm Sunday 8am–1pm [](https://www.facebook.com/D.P.L.ElectricalServices)[](https://www.instagram.com/d.p.l_electricalservices)[](https://x.com/dplelectricals1) Services - [Domestic Electrical Installation](/services/domestic-installation) - [Commercial Electrical Installation](/services/commercial-installation) - [Landlord EICRs](/services/landlord-eicrs) - [Complete Domestic Rewires](/services/domestic-rewires) - [Complete Commercial Rewires](/services/commercial-rewires) - [Consumer Unit Upgrades](/services/consumer-unit-upgrades) - [EV Charger Installation](/services/ev-charger-installation) - [Electrical Emergency Call-outs](/services/emergency-callouts) - [Electrical Maintenance](/services/electrical-maintenance) Service Areas - [Oxfordshire](/service-areas/oxfordshire) - [Buckinghamshire](/service-areas/buckinghamshire) - [Berkshire](/service-areas/berkshire) - [Wiltshire](/service-areas/wiltshire) - [Gloucestershire](/service-areas/gloucestershire) - [Oxford](/service-areas/oxford) - [Witney](/service-areas/witney) - [Banbury](/service-areas/banbury) - [Bicester](/service-areas/bicester) Company - [About](/about) - [Our Work](/our-work) - [Reviews](/reviews) - [Contact](/contact) NAPIT Registered Electrician Company No. 11444366 © 2026 D.P.L Electrical Services. 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