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Business Details
20 Years
experience
Your Trusted Electricians in Chelmsford
Sigma Electrical Services was established in 2006 by James Hoctor, our founding and current managing director. We specialise in delivering professional electrical solutions across domestic, commercial, and industrial sectors throughout Essex. Our team comprises six fully qualified electricians, each committed to ensuring every project meets exacting standards of quality and safety. We handle everything from minor repairs, such as fuse replacements, to comprehensive installations and re-wires. Our expertise extends to automated gates, PV solar panels, and electrical testing, including PAT testing and periodic inspections.

We work closely with homeowners, small businesses, and large industrial organisations, ensuring compliance with BS7671 regulations and insurance requirements. Our accreditations with NICEIC, TrustMark, and Construction Line reflect our commitment to industry excellence. We prioritise clear communication, tailored job specifications, and a safe working environment for every client. With our base in Chelmsford, we serve the wider Essex region, offering reliable and technically proficient electrical services. Our 17 years of experience underscore our dedication to meeting and exceeding client expectations.
Services
Domestic Rewires Consumer Units Lighting Installations Power Circuits Earthing Systems Electrical Testing PV Solar Panels Electric Gates Periodic Inspections Commercial Installations
Details
  • Year established: 2006
Highlights and features
  • We have over 17 years of experience in electrical contracting.
  • Our team consists of six fully qualified NICEIC-approved electricians.
  • We offer comprehensive electrical testing to meet insurance requirements.
  • We handle projects from minor repairs to full industrial installations.
  • We are accredited by industry-leading schemes including TrustMark.
Associations and certifications
  • NICEIC
  • TrustMark
  • Construction Line
Services
Domestic Rewires
We provide full domestic rewire services for residential properties, ensuring compliance with the latest electrical safety standards. Our work includes replacing outdated wiring systems, upgrading consumer units, and installing modern circuit protections. Clients benefit from enhanced electrical safety, improved energy efficiency, and increased property value through our meticulous installations.
Electrical Testing
Our comprehensive testing services include periodic inspections, PAT testing, and condition reports for all property types. We identify potential hazards, verify compliance with BS7671 regulations, and provide detailed documentation. This service ensures ongoing electrical safety for homeowners, landlords, and commercial clients while meeting insurance requirements.
PV Solar Panels
We design and install photovoltaic solar panel systems for domestic and commercial properties. Our solutions include system sizing, inverter selection, and grid connection. Clients reduce energy costs, lower carbon footprints, and benefit from government incentives through our expertly implemented renewable energy systems.
Commercial Installations
We deliver tailored electrical solutions for commercial premises, including new builds and renovations. Services cover lighting design, power distribution, and emergency lighting systems. Businesses gain reliable, code-compliant installations that support operational efficiency and meet workplace safety regulations.
Electric Gates
Our electric gate installations include automated systems with access control features for residential and commercial properties. We provide motorised swing and sliding gate solutions with safety sensors and backup mechanisms. Clients enjoy enhanced security, convenience, and property aesthetics through our durable, professionally installed systems.
People
James Hoctor
Managing Director
James founded Sigma Electrical Services in 2006 with over two decades of electrical engineering experience. He holds EngTech MIET and LCGI (Elec Eng) qualifications, ensuring technical excellence across all projects. His leadership focuses on quality, safety, and client satisfaction.
Questions
What areas do you cover?
We operate throughout Essex, with a focus on Chelmsford, Maldon, and surrounding areas.
Are you NICEIC registered?
Yes, we are NICEIC-approved contractors for both domestic and commercial electrical work.
Do you handle emergency repairs?
We prioritise scheduled work but can assess urgent electrical faults during normal working hours.
Can you provide electrical certificates?
Yes, we issue BS7671-compliant certificates for all installations and testing services.
What electrical services do you offer?
We provide rewires, testing, solar panels, electric gates, and full installations for domestic, commercial, and industrial clients.
How experienced is your team?
Our six electricians collectively hold over 100 years of industry experience, including specialist accreditations.