Expert Electrical Installations

At 3s, we take our time in ensuring we understand exactly what our client is looking for. Depending on a company’s needs, this could range from a full electrical installation to minor adds, moves and changes.

Our electrical contracting and engineering division has over 40 years of experience and cover all aspects of your electrical installation needs:

  • design
  • supply
  • installation
  • testing
  • certification

We will tailor your electrical installation to the unique needs of your business.

We are a NICEIC Approved Contractor; you can rely on us to provide a first-class electrical service. All our electricians are trained to the very highest standard and always ensure that any electrical work complies with the latest safety regulations, including Part ‘P’ of the Building Regulations, the Electricity Supply Regulations and the Electricity at Work Regulations.

Enquire Now

Electrical Installation Certificate

Upon our completion of an electrical installation, addition or alteration. We will provide you with a certification which provides you with confirmation that we have met the appropriate safety standards.

This will either be an Electrical Installation Certificate (EIC) or a Minor Electrical Installation Works Certificate (MEIWC). – These are both satisfactory documentary evidence, if a claim was made against your company due to a fire or injury caused by an electrical installation, so it is important these documents are kept safe.

Ongoing Maintenance with 3S

At 3s, we have the necessary expertise to carry out EICR (Electrical Inspection Condition Report) testing for your business every 3/5 years, as well as PAT testing on your electrical appliances. If any remedial work is required following these tests, we will provide you with a quote upfront and make sure it is completed at a time that suits you, with minimal disruption.

Solar PV Installations

Our technicians have extensive experience of designing, installing and maintaining solar installations. Installing solar panels is a great way to save money and take control of your electricity bills. With energy companies' ever rising bills, have you looked into solar installations? 3s Northampton Ltd is one of the UK’s leading developers of renewable energy infrastructures.

Data Cabling

At 3s Northampton Limited our dedicated staff can help you with data cabling and high-speed fibre optic cabling, no matter what size your business may be! If your business is new, relocating, or upgrading its network, it’s important to make sure you install the right network cabling. As experienced electricians with over 30 years in the industry, we can guarantee to advice you on the best system for your business needs.

Building Refurbishments & Fit-Outs

Whether you’re seeking a full building refurbishment, office, retail or industrial fit-out, we can offer you the perfect solution. Over the past sixty years, we have built up expertise and knowledge across many sectors, enabling us to deliver a full service to our customers across the UK and beyond.



3s Northampton Ltd design, recommend, install and maintain energy efficient lighting throughout the UK. We are accredited and monitored by the following bodies; so you can be assured our work is of the highest quality and conform to standards.

Building Maintenance

3s Northampton Ltd is a dedicated company that is focused on providing high quality maintenance services with competitive rates and excellent customer service. We offer a wide range of services to ensure your property remains in great condition all year round.

Electrical Testing

At 3s Northampton Ltd, we are capable of conducting one-off or periodic testing for your business’ entire electrics, keeping your staff safe at all times. We are able to certify all of our work and report on existing installations to check if they are electronically sound.