Our Electrical Maintenance & Repair Services in Windsor
Big Green Electrical offers a complete suite of services that can be tailored to the unique needs of businesses in Windsor.

First-class electrical installation
Reliable electrics are essential for businesses in Windsor. From lighting and equipment to critical systems behind the scenes, electrical faults can quickly disrupt operations, create safety concerns, and lead to costly downtime. Big Green Electrical provides electrical maintenance and repair for commercial properties across Windsor. As NICEIC accredited electricians, we keep your systems safe, compliant, and running efficiently.
First-class electrical installation
Reliable electrics are essential for businesses in Windsor. From lighting and equipment to critical systems behind the scenes, electrical faults can quickly disrupt operations, create safety concerns, and lead to costly downtime. Big Green Electrical provides electrical maintenance and repair for commercial properties across Windsor. As NICEIC accredited electricians, we keep your systems safe, compliant, and running efficiently.


Waiting until a fault occurs is a risky approach that often leads to greater damage, increased costs, and longer periods of downtime. Investing in planned, preventative maintenance is a smarter strategy that protects your people, assets, and reputation.
The Electricity at Work Regulations 1989 require all business owners to maintain safe electrical installations. Compliance is essential, as most commercial insurance policies demand evidence of regular electrical inspections—typically in the form of an up-to-date Electrical Installation Condition Report (EICR). Failure to comply may result in legal penalties and invalidate your insurance policy. Our team will ensure all documentation is current and that your systems meet the latest British Standards.
The safety of your staff, customers, and visitors is your top responsibility. Electrical faults—such as degrading wiring, overloaded circuits, or loose connections—are among the leading causes of workplace fires and accidents. Regular maintenance by qualified electricians identifies and corrects these risks before they become a hazard, supporting a safe environment for everyone on your premises.
Small electrical issues often develop into major, costly problems when neglected. Addressing loose connections, ageing components, and minor faults through regular maintenance helps extend the life of your infrastructure, avoiding expensive emergency repairs and replacements in the future.
In Windsor’s fast-paced business landscape, any period of unplanned downtime can be costly. A sudden loss of power can halt payments, disable IT, and interrupt service. The potential loss of revenue and negative impact on reputation far outweighs the investment in routine maintenance. We prevent issues before they escalate, keeping your business running smoothly.
Big Green Electrical offers a complete suite of services that can be tailored to the unique needs of businesses in Windsor.

We design a bespoke PPM schedule for your property, with regular planned visits to inspect, test, and service your electrical systems. This proactive approach is the most effective way to reduce risk and ensure safe, reliable operation all year round.
An EICR, also known as fixed wire testing, is a thorough assessment of your building’s electrical installation. This report is a legal and insurance requirement for many businesses. Our experienced electricians carry out comprehensive inspections and provide you with clear, actionable recommendations.
Commercial premises must have functional emergency lighting to support safe evacuation during a power outage. We test and maintain your emergency lighting systems in compliance with BS 5266 to ensure they perform when it matters most.
Even with strong prevention, electrical faults can sometimes occur. Our team is ready to respond quickly in Windsor, diagnosing and resolving issues—from a persistent tripping circuit to a full loss of power—minimising disruption and restoring normal operation as swiftly as possible.

We have years of experience serving businesses across Windsor and Berkshire. Our in-depth local knowledge allows us to deliver responsive, dependable service.
All work meets the highest safety and technical standards, giving you confidence in full regulatory and insurance compliance.
We pride ourselves on clear communication and building long-term partnerships. Our electricians explain work in plain language, ensuring you always stay informed.
Our aim is to become your trusted partner for all electrical needs—delivering honest advice and effective solutions.