Our service guarantee explains what electricalworks commits to in writing: a 5-year workmanship guarantee on our installation labour, manufacturer-backed product warranties where applicable, and complete certification for notifiable work. It does not replace manufacturer terms, insurance requirements or your own maintenance responsibilities. Written quotation and guarantee details are provided before work begins and again at handover.
5-Year Workmanship Warranty
When you commission electricalworks to rewire a period property in Cobham, upgrade a consumer unit in Guildford, or wire the electrical portions of a solar installation in Weybridge, every hour of installation labour and every metre of containment we fit is covered by our five-year workmanship guarantee against defects in workmanship.
This is not a conditional offer buried in small print. It is a direct reflection of the engineering discipline our teams apply to every circuit. Our engineers are appropriately qualified professionals, and every installation is designed and delivered in line with BS 7671 (18th Edition), with certification handled by appropriately qualified professionals where required. For homeowners, that matters enormously. If a fault arises from our installation within the warranty period, we investigate it, we own it, and we remediate it at our cost.
This guarantee also provides practical protection at the point of property sale. Solicitors and mortgage lenders increasingly request evidence of workmanship accountability. The Electrical Installation Certificates we issue create an auditable chain of responsibility that reassures buyers and their conveyancers in a way that sole-trader paperwork rarely can.
25-Year Solar Panel Performance Guarantee
Surrey and South West London receive less annual irradiance than southern Europe, but consistency matters more than peak sunshine hours for most households. The Tier 1 monocrystalline panels we specify from established manufacturers typically carry a linear performance warranty to at least 85% of rated output after 25 years, validated against IEC 61215 and IEC 61730 standards, subject to manufacturer terms.
In practical terms, a 5 kWp system installed on a well-oriented roof today can still contribute meaningful daytime generation many years later. We provide the datasheet, performance warranty certificate and MCS design documentation at handover so you hold the evidence, not just our word for it.
That documentation is not merely reassuring. It is the prerequisite for registering your Smart Export Guarantee (SEG) tariff with a licensed electricity supplier, and it is what lenders and valuers increasingly require when a property with a solar installation changes hands. We make sure it is complete and coherent before we leave site.
10-Year Battery Storage Warranty
Battery storage can extend the usefulness of solar beyond daylight hours - particularly where households run EV chargers, heat pumps or high evening loads. The economics depend on how the battery performs over time, which is why manufacturer warranty terms matter.
We install Tesla Powerwall 3 and equivalent premium storage architectures that carry 10-year manufacturer warranties covering charge cycle count and capacity retention, subject to manufacturer terms. The Powerwall 3, for example, is commonly quoted with around 70% end-of-warranty capacity after a decade of daily cycling - a figure that underpins off-peak tariff strategies such as Octopus Intelligent or Octopus Go, where cheap overnight electricity is stored for peak-hour use.
Our commissioning process includes configuring remote monitoring so that capacity drift is visible well before it reaches warranty threshold levels. If an OEM claim is ever required, the telemetry records we help establish are precisely the evidence manufacturers need to process it without delay. Our responsibility for the electrical installation - conductors, isolators, metering tails and earthing - runs in parallel for the full five-year workmanship period.
Total Regulatory Compliance & Certification
Homeowners should not need to navigate planning authorities, building control offices, network operators or certification bodies alone. That compliance process is part of what electricalworks delivers - not an optional add-on, and not something we hand back once cables are pulled.
Every notifiable electrical installation we undertake is registered under Part P of the Building Regulations, with a Minor Works Certificate or Electrical Installation Certificate issued to you on completion. For solar and battery installations connected to the grid, we prepare and submit the G98 or G99 notification to the relevant Distribution Network Operator, covering engineering assessment through to formal network acceptance where required.
For microgeneration projects requiring MCS certification, the full commissioning dossier is prepared and checked by appropriately qualified professionals before handover. This includes:
- MCS 001 installation certificate with system design parameters
- Inverter commissioning report with serial numbers and firmware version
- DNO acceptance confirmation (G98 or G99) for grid-tied systems
- Evidence pack for Smart Export Guarantee (SEG) tariff registration with your chosen licensed supplier
Without a complete and accurate MCS dossier, your SEG application will be delayed or rejected. We take great care to ensure every dossier is right first time, so your application is not held up by avoidable paperwork errors.
Clear, Itemised Pricing
The quote you sign is the price you pay. This is one of our most important commitments to every client, stated clearly in writing before work begins.
Before any work starts - whether we are rewiring a four-bedroom house in Virginia Water, installing a solar and battery system on a semi-detached in Guildford, or fitting EV charging infrastructure at a commercial property in Surrey - you receive a fully itemised written quotation. That document sets out labour by phase, materials by specification, containment route, commissioning attendance, and any third-party costs such as scaffolding or DNO application fees.
We do not issue provisional quotes that grow once access is confirmed. We do not insert open-ended clauses for unforeseen circumstances as a mechanism to inflate final invoices. If, during works, you elect to change scope - adding a circuit, upgrading a specification, extending cable runs - we issue a written variation order with the cost attached before any additional work proceeds. Nothing is done on a handshake and billed retrospectively.
For homeowners who have previously experienced contractors arriving with a competitive quote and departing with a significantly larger invoice, this approach is one reason clients return to us and refer neighbours.
Book a no-obligation engineering consultation - thirty minutes, no pressure, and a clear sense of what your project will cost and what guarantees protect it.