24 hour emergency electrician Typical response 1 hour across Maidstone 07366 354 116

Fixed prices in writing

Solar Inverter Replacement in Maidstone

If your solar inverter has failed or is obsolete, replacement is often worthwhile when testing confirms the panels, DC cabling, isolators and earthing are sound. We survey your Maidstone property, match a compatible inverter to the array, export settings and consumer-unit protection, then provide a fixed written price including VAT, labour, testing and certification. We safely isolate AC and DC supplies, commission the replacement and issue records. Below, we explain costs, disruption, upgrades and local site considerations.

Newly installed consumer unit with RCBO protection in a Kent home
Domestic electrical installation
  • NICEIC approved
  • Part P registered
  • £5m public liability
  • 12-month workmanship guarantee
  • Fixed price before we start
Solar Inverter Replacement in Maidstone

What we do and who it is for

We replace faulty or unsupported solar inverters with certified replacements — fixed written prices cover equipment, labour and required electrical certification. Serving Maidstone and nearby areas including Bearsted, Penenden Heath, Tovil, Barming and Loose. Work is guaranteed with manufacturer-backed warranties and NICEIC/Electrical Safety Certificate issued on completion.

Typical jobs

We typically carry out inverter work across Worthing and its surrounding neighbourhoods, so the way we approach jobs in places like Heene, Goring-by-Sea, Tarring and West Durrington is tailored to the local housing stock and road layouts.

Typical solar inverter jobs in Worthing include swapping failed string inverters in 1930s semi‑detached houses in Salvington, replacing obsolete units in 1960s council terraces in West Durrington where manufacturer monitoring or spares are no longer available, and upgrading undersized equipment after array extensions on Victorian end‑of‑terrace properties in Broadwater. Before recommending a compatible replacement for any property in Steyne, Heene or High Salvington, we assess the existing DC cabling routed across pitched roofs common to Worthing’s inter‑war semis, the location and condition of roof‑mounted isolators, earthing arrangements typical on post‑war bungalows in Goring, the consumer unit connection in mid‑terrace houses along Chapel Road, and the generation meter beside the off‑street parking areas found in parts of Durrington.

  1. When we work on a 1930s semi in Northbrook Road or a 1970s bungalow in Downlands Close we safely isolate the PV DC and AC supplies for that specific property and prove the circuits dead before removing the inverter.
  2. For homes in Broadwater and the Salvington area we check string voltage, polarity and insulation resistance on the actual arrays to identify faults beyond the inverter — for example degraded roof‑run DC cables on older cottages in Richmond Road.
  3. We fit correctly rated string inverters selected for the constraints of Worthing properties — for instance smaller, roof‑mounted inverters for terraced houses on High Street and larger units for detached homes in Brooklands Park — configure the monitoring compatible with the neighbourhood’s broadband setups and test generation under safe conditions at that address.
  4. For battery retrofits in areas such as Goring and Tarring where many homes are 1960s/70s stock we confirm export controls, check the existing cable capacity in the property’s cellar or garage, and assess whether a hybrid inverter suits the specific layout and consumer unit of that house.

Our written scope for each Worthing job names any necessary remedial work upfront so that owners of properties on Heene Road or in West Tarring avoid paying for a new inverter when the real issue at their address is degraded DC cabling, a faulty isolator, or supply‑side limitations from the local feeder serving their street.

What it costs

Costs for solar inverter replacement in Maidstone are quoted per job after a free survey because the final scope depends on inverter type, access and the condition of existing wiring and components. We provide fixed replacement costs in writing including VAT, parts, labour, testing and certification so your bill won’t exceed the quote.

Job Price What's included
Inverter replacement Quoted per job Parts, labour, testing, certificate, VAT
Fault finding £80/hr Electrical diagnostics
Emergency attendance £120/hr First hour minimum

Not included: scaffold/specialist access equipment, plaster repairs, decoration, asbestos removal, DNO supply-upgrade charges; any remedial array-fault work will be priced separately.

How the work is planned

Once we’ve confirmed the fixed price, we’ll survey the existing inverter, isolators, consumer-unit connection and generation meter arrangement before ordering a compatible replacement. We’ll check mounting space, cable routes, ventilation, communications requirements and whether the new unit can use the present DC strings without unnecessary alterations.

Our scheduling logistics account for delivery lead times, daylight working conditions and the need to minimise generation downtime. We’ll agree access coordination in advance, including clear access to the inverter location, consumer unit and any loft or external isolators. Please keep pets away from work areas and avoid using affected circuits during the changeover.

On the day, we’ll isolate AC and DC supplies safely, remove the failed or outdated inverter, fit and connect the replacement, then test operation before restoring the installation.

Compliance and documentation

For a solar inverter replacement in Maidstone, we’ll provide the relevant electrical certification and commissioning records, confirm safe isolation and test the AC connection before handover. Certificate issuance will follow completion of the work, with results recorded for the inverter supply, protective devices, earthing and functional operation. We’ll also explain which documents you should retain for warranties, insurers, future maintenance and any property sale.

Keeping records helps show the system has been maintained and that any alterations were properly tested; this is important evidence but is not in itself a statutory guarantee of safety. For commercial premises there is no single statutory interval for fixed‑wire EICRs; while the IET Guidance Note 3 recommends typical intervals (for example, five years for offices, three years for some industrial sites and annual checks for higher‑risk environments), these are guidance rather than legal requirements — the legal duty is simply to maintain electrical systems so as to prevent danger. We’ll quote any certification costs clearly before work begins.

Minimal disruption and out-of-hours working

With the documentation in hand, we’ll plan your solar inverter replacement to keep downtime and disruption to a minimum. We’ll agree isolation times, access arrangements and a fixed written price before work starts, so you can schedule around generation losses and occupancy.

Where practical, we can prepare mounting, containment and settings before the changeover, then isolate the AC and DC supplies safely, replace the unit, test protective functions and recommission it efficiently. Evening access may suit premises that need daytime continuity, subject to safe lighting, manufacturer requirements and our out-of-hours rate of £120 per hour. Noise control matters too: we’ll limit drilling, use appropriate dust containment and avoid unnecessary running of tools. We won’t energise the system until polarity, insulation resistance, earthing and operational checks are satisfactory.

Premises and sites around Maidstone

Across Maidstone we replace solar inverters at homes and business premises in specific neighbourhoods: in Tovil’s Victorian and late‑Victorian terraces (c.1860–1900) and the town centre conservation area we check narrow roof access and chimney details; in Shepway and Park Wood, where many post‑war semi‑detached houses date from the 1950s–1960s, we inspect for aluminium conductors and secure terminations; in Senacre’s 1960s–1970s council housing and in newer estates around Grove Green and the 1990s Vinters Park developments we assess consumer‑unit capacity and available isolation points before recommending a compatible replacement.

On riverside sites by the River Medway in the area around Maidstone West and the industrial units near Sturry Road we plan safe access around loading bays, three‑phase supplies and operational equipment specific to those warehouses. At historic mill buildings such as the former paper mills at Loose and at listed structures within the town centre conservation area we design cable routes and work methods to minimise alteration to the original fabric of those particular buildings.

When we visit addresses in Allington, Bearsted, Coxheath or Langley we assess existing cabling and earthing arrangements relevant to the local housing stock — for example, late‑Victorian terraces in Bearsted, inter‑war semis in Langley and 1980s detached houses in Coxheath — and then specify the appropriate replacement inverter for that property in Maidstone.

For every job we’ll provide a fixed written price for the Maidstone property in question that covers labour, parts and the required certification for that specific address, so residents and businesses in those neighbourhoods can compare replacement costs for their individual premises without unexpected additions.

What it costs

JobWhat is includedPrice inc. VAT
EICR, up to 3-bedFull inspection, test results and report£150–£250
Consumer unit (fuse box) replacementBoard, RCBO/RCD protection, testing, certificate£500–£700
Full rewire, 3-bedAll circuits, new consumer unit, testing, certificate£4,500–£8,000
EV chargepoint, fittedAbout £500 after the OZEV grant where you qualifyfrom £1,000
Extra socketSupply, fitting and testing£55–£75
Out-of-hours emergencyFirst hour minimum, 24 hours a day£120/hr

All prices include VAT, parts, labour, testing and the certificate. Not included: making good plaster and decoration, asbestos removal, DNO charges for a supply upgrade, scaffold or access equipment. Fixed price in writing before we start — the bill is never larger than the quote.

Where we work

Areas we cover from Maidstone

See every area we cover

Frequently asked questions

My solar inverter has stopped working—how can I tell if it’s the inverter?

No. First check isolator switches, fuses, cabling, generation meter and grid supply; if those are fine we’ll diagnose the inverter fault, then recommend repair or replacement.

How long should a solar inverter last?

10–15 years. Heat, poor ventilation or bad installation can shorten life; if it’s near that range consider replacement and upgrade options.

Can you replace my inverter to match my existing panels?

Yes. We’ll match the replacement to your array voltage, string layout and maximum DC input while checking AC protection and earthing.

Should I get the same model or upgrade the inverter?

Either. A like-for-like is usually cheaper; an upgrade can add monitoring or battery compatibility if your system supports it.

How much will replacing the inverter cost?

No. Costs vary, but we provide a fixed written price covering labour, parts and certification after inspection.

Can I transfer the inverter warranty if I bought the house secondhand?

Maybe. Warranty transfer rules vary by manufacturer; ask them about transferability and whether original registration is needed.

Get a fixed price

Ring us or send a photo of the job. We give a fixed price in writing before any work starts, and the bill is never larger than the quote.

Call 07366 354 116 · 24hr