Electrical and Mechanical Engineering Services

SEMCO UK delivers electrical and mechanical engineering, plumbing, fire systems, security and access control systems.

Working in the domestic, public and private sectors, we undertake works of any size for both new build and refurbishment projects.

For complete project management, take advantage of our design team services.

SEMCO UK offers facility management and maintenance package for both our own installation and pre-installed systems.

Please click on the links below to see details of our areas of expertise and associated case studies.



Electrical Engineering

SEMCO deliver comprehensive electrical engineering solutions for projects of any size. We work as the primary contractor or sub-contractor depending on the size and needs of the project. Our expertise and experience mean we can advise you on the best electrical services to your project. There is also the option of utilising our design services.

We work in new-build installations and also refurbishment projects.

Renowned for the quality of our services, adherence to deadlines and cost effectiveness, our electrical engineering work includes:

  • Complete building services Lighting Power & Mains Distribution design and installation
  • Outdoor and security lighting
  • Periodic and PAT testing and inspection
  • TV & Audio cabling
  • External electrics

PLease see our other services page for details and case studies of our work in fire systems, security and access control systems.
SEMCO services extend to include servicing and maintenance of electrical systems, ensuring they are working optimally. We can also be trusted to react promptly should any electrical system develop a fault.

View case-studies


Mechanical Engineering

SEMCO have an established mechanical engineering team,  offering outstanding design, installation and support services.

We provide installation and commissioning support for new as well as refurbished machines as well as protection systems, ancillary control equipment and excitation systems.

  • Hot & Cold Water Services
  • Heating & Boiler Plant Installations
  • Ventilation
  • Sanitary Installations
  • Air Conditioning
  • BMS
  • Control panels
  • AC/DC motors and components

Please see our case study for more information or call us to discuss your project.

View case-studies


Fire Detection and Alarm Systems

Installation, maintenance and repair

SEMCO provides full design and installation services for fire detection and alarm systems that are fitted to BS5839 standards and can exactly match your project requirements.

Our fire detection and alarm systems are used in:

  • Public sector buildings (local authorities, care homes etc.)
  • Commercial buildings and complexes
  • Office blocks and industrial premises
  • Multi-occupancy buildings
  • Domestic properties

We survey and advise on aging fire detection and alarm systems where upgrading is required to meet current legislation.

Along with our design and installation services we also provide a full inspection, preventative maintenance and repair service.
Our inspection and maintenance services are also available for fire alarm and smoke detection systems that we have not installed.

Please contact us for a free, no-obligation quote.


View case-studies


Security Systems

At SEMCO UK we have a comprehensive approach to security systems and access control systems. We offer customers peace of mind that they have a reliable system that protects premises and the people that work or live there.

SEMCO offer design and installation expertise as well as being competitively priced.


We design CCTV applications for the whole breadth of applications from a domestic home to a large commercial/industrial site.
Our engineers use the latest technology to design and install a system that will maximise the security of your property.

SEMCO can deliver the complete survey, design and installation package or provide the best in electrical engineers to install an already designed project.

Intruder Alarms

SEMCO provide intruder alarm systems that are designed bespoke for each customer, giving peace of mind that our system design will exactly match your requirements. Using state of the art technology the systems we design will meet or exceed the requirements of the insurance company.

We also provide survey and upgrade services for older systems to ensure compliance.

As a trusted supplier we also provide preventative maintenance and inspection services for our own systems or to existing ones.

Access Control

From a code lock device to full PC based access control systems, SEMCO design and install access control and entry systems for any application. Entry systems give you full control over who enters your site and which areas of your site, keeping your premises and occupants safe. Depending on the application, systems can be designed to monitor and log staff movements, monitor and secure higher security areas.

  • Audio/Video entry systems
  • Code lock devices
  • Internal communication audio
  • PC based access control systems
  • Turnstiles

As with all SEMCO services we provide inspection, maintenance and repair services for all security systems.

Please contact us for a free, no-obligation quote.

View case-studies


Maintenance & Facility Management Services

SEMCO UK are a tried and trusted electrical and mechanical engineering and plumbing supplier of many years’ standing. Our reputation is built upon our expertise and execution of our services, coupled with our competitive prices.
Once your project is complete, take advantage of our inspection and preventative maintenance packages that cover all areas of our supply services:

  • Electrical – internal and external
  • Mechanical – control panels
  • PAT Testing
  • Security – CCTV, intruder alarms, access control and entry systems
  • Fire Alarms
  • Plumbing and heating

Our maintenance and inspection services give our customers the benefits of:

  • Notification of inspection due dates
  • Ensuring you are compliant with legislation
  • Ensuring all systems are running optimally
  • Early identification of emerging problems in aging systems
  • Cost effective approach to system maintenance

All our maintenance packages are tailored to the needs of the premises to ensure cost effectiveness and our flexible approach means you can choose the length of service agreement from 3 to 5 years.

With a SEMCO maintenance plan, any sudden breakdown with be responded to promptly with the right engineer for the job.
SEMCO provides maintenance and inspection services to our own installations but also to premises where systems have already been installed but need maintaining.

  • Care homes
  • Housing associations
  • Local authority buildings
  • Commercial and industrial premises
  • Domestic landlords

For more information on our comprehensive maintenance packages, please see our case study or call us for a no-obligation quote.

View case-studies
design services


Design Services

SEMCO UK offers the complete project design services package if required. In all areas of our services, we provide surveying and planning consultation before designing a system of works that marries the latest technology and efficiency with cost-effective delivery.

Our design services team are adept in all sizes of project and work with all other areas of service delivery to ensure a smooth and prompt project delivery schedule.

The online project management facility on our website ensures that we can work together effectively, every step of the way. This minimises disruption, snags and delay, and allows us to work to schedule and budget.

Our team of designers and engineers are as highly qualified as you would expect and together with vast experience ensure efficiency at all stages of your project.

Please see our related case study and contact us for more information about our Design Services and how they can effectively help your project:

  • Design & Build Mechanical & Electrical
  • Energy Performance Certificates (EPC)
  • Model Building
  • Auto Cad
View case-studies