Electrical Services

Commercial electrical services across London and the South East

Hollmark offer a full electrical service package to support facilities, estates and compliance teams with reliable, high-quality electrical solutions tailored to their operational needs.

Why Choose an NICEIC Approved Contractor?

An electrical team you can rely on

The NICEIC Approved Contractor accreditation demonstrates that an electrical contractor has been independently assessed and verified as competent to undertake electrical work in accordance with current regulations and industry best practice.

For our clients, this means greater confidence in the quality, safety and compliance of the work being delivered. It provides assurance that installations, inspections, testing and maintenance are carried out by qualified professionals with technical competence and operating to recognised standards

Hollmark has held NICIEC status since 2003.

Electrical Installations

Our services range from full electrical installation rewires to system adaptations, distribution board upgrades and switchgear replacement.

Services include:

- Installations and rewires

- Commercial lighting system

- Temporary power supply

Testing and Inspection

We provide a wide range of testing and inspection services to comply with regulations set out in BS 7671.

Services include:

- Electrical Installation and Condition Reports (EICR)

- Remedials works identified from the inspection and testing

- Compliance reporting and certification

Emergency Lighting

We offer a comprehensive emergency lighting review, design, installation and on-going maintenance to meet the legal requirements of the Regulatory Reform (Fire Safety) Order 2005. Adequate emergency lighting throughout the escape routes of a building are a legal requirement. Under BS 5266 this recommends monthly functional tests and an annual full duration test.

Services include:

- New emergency lighting installations

- Routine testing and maintenance – annual full duration test and monthly functional test.

- Compliance reporting and certification

- Contracts available

Electrical Remedial works/PPM

Following inspections or fault reports, we carry out electrical remedial works to restore safety and compliance.

Common works include:

- Circuit and bonding corrections

- Consumer unit upgrades

- Rewiring and fault rectification

- Safety improvements following EICRs

PAT Testing

Our PAT testing services ensure portable electrical equipment is safe to use within commercial environments. Frequency of testing is dependant on risk and environment, ranging between 3 months to 4+ years.

Suitable for:

- Offices and workplaces

- Retail and hospitality

- Education and healthcare

- Multi-site portfolios

LED and Lighting Project Upgrades

We can offer efficient lighting solutions to improve visibility and modernise your premises. Cost versus energy saving calculation and return on investment (ROI) can be provided.

Key benefits:

- Reduced energy consumption

- Reduced energy bills

- Lower maintenance costs (longer lifespan)

- Improved lighting performance

- Better for the environment – reduced carbon emissions

- Longer lifespan of lamps – fewer replacements, less manufacturing, transportation and waste/landfill.

- Improved safety and handling as do not contain mercury.

- Support your sustainability goals

EV Charging Infrastructure

We design and install EV charging points for commercial sites and workplaces, supporting sustainability and future-proofing.

Services include:

- Site assessment and load calculations

- Charger installation and commissioning

- Integration with existing electrical systems

Reactive Call Outs and Fault-Finding

Our employed team of qualified electricians are on hand to respond to an electrical emergency and rectify faults.

- 24-hour emergency service available for those clients in contract.

- Make safe electrical systems

- Fault-diagnosis

Data Cabling and Networks

We can offer structured cabling and networking systems for all types of premises.

Services include:

- Data outlet/socket installations

- Cable containment such as trunking conduit, tray etc

- Cabling for CCTV, door entry systems and access control.

CCTV and Door Entry Intercom Systems

We offer professional CCTV and door entry system installations for commercial premises, tailored to your specific requirements. Our installations are carried out to a high standard with ongoing support and maintenance available, therefore improving security, safety and peace of mind for our clients and the buildings they work in.

Thermal Imaging

Our specialist electrical team have the knowledge, expertise and necessary equipment to undertake thermal imaging (calibrated thermal infrared camera) and interpret the findings accurately.

The camera can detect and measure heat patterns, by detecting overheating electrical components and hidden faults without disrupting power supplies.

Key Benefits:

- Early detection prevents equipment failure

- Reduced downtime

- Improved electrical safety

- Form part of the planned and preventative maintenance programs.

Our Electrical Services Division is led by Ian Holliman, Director, who brings over 30 years of industry experience. Ian established the business as a specialist electrical contractor, building a reputation for quality, reliability, and technical expertise before expanding into complementary services to meet the evolving needs of our clients.

Today, those same principles remain at the heart of our approach. We combine technical excellence with a practical understanding of the challenges faced by building owners, estates teams, and facilities managers, delivering trusted electrical services that keep buildings safe, compliant and performing at their best.

Delivering excellence, inspiring trust and providing value through every project we undertake.