Since its formation in 2014, JAG has established a reputation for exceptional delivery on some of London’s largest and most complex construction projects. We are a successful and growing company with a family ethos. We pride ourselves on developing innovative ideas and bringing a fresh approach to every project.

Our success to date has been built primarily on our in-house delivery and engineering capabilities. These are the driving force behind our project delivery success.

Jag building Services

Our Right First Time Approach

Right First Time is our key cultural value of what we do. Formalised in:

1.Respect

2.Integrity

3.Teamwork

4.Excellence.

Our reputation is reliant on our people: skilled and experienced with a passionate and ‘can do’ approach. We are passionate about delivering right first time to help our clients meet their budget and programme constraints.

Our design and build capability mean a total engineering solution delivered right first time. We are client focused and recognise that our clients’ goals are our goals. And in all that we do, we strive to do it right first time.

Our Mission

Achieving client satisfaction by safely delivering quality projects

We believe that the way to promote our business is through the development of good working relationships with our clients. To this end, we aim to 

  • Build the highest environmental, health and safety standards into all our processes
  • Insist on excellence in all that we do
  • Deliver projects to specification and on schedule
  • Be a company where our people enjoy their work and can achieve their career ambitions


We endeavour to earn the trust and confidence of those for whom we work. Our objective is to provide a service of such high quality that enhances continuing business.

Jag Building Services

Our Values

Our values underpin everything we do at JAG Building Services – the way we approach our work, and the way we interact with our colleagues, suppliers and customers:

Safety is imbedded in all our systems and procedures, and in the way we all approach our work.
Our ‘right first time’ principle means that we complete every element of every project to the highest standards. Every element counts big or small
Our customers must be able to rely on us to deliver on our promises, and on our installations to perform as expected.
We foster the highest standards of personal conduct in our people – stressing the importance of courtesy, honesty and understanding.
All members of the JAG quickly develop a sense of professional pride – pride in the company’s work, pride in the skills and attitudes of their colleagues, and pride in their own abilities.
Jag building Services

Health And Safety

We at JAG hold an open and honest culture to safety which is driven for the top the health and safety of our workforce, other workers, and the public as the overriding concern both during the installation phases and in the quality of our finished product. 

Our workforce is given comprehensive training to ensure they not only understand the methods of safe working but also appreciate the need and the reasons for following correct operating procedures. In addition, we ensure that our workers are provided with the most up-to-date safety apparatus. 

In order to guarantee our own compliance with these high standards, we employ an independent Health and Safety Advisory Consultancy who regularly audit our sites and offices. In this way we believe we can maintain the highest levels of health and safety during each project. 

This is reflected in our record:

  • 2024 –Over 79,000 hours worked no reportable or lost time due to accidents
  • 10 Years without a reportable accident was achieved in 2024 –Total hrs in excess of 550,000 hours.
BAFE ACCREDITATION SP207 EVACUATION ALERT SYSTEM
BAFE ACCREDITATION SP203-1 FIRE DETECTION SYSTEM
01

Mechanical Services

  • HVAC (Heating, Ventilation, and Air Conditioning): Design, installation, and maintenance of climate control systems.
  • Refrigeration Systems: Installation of commercial and industrial cooling systems.
  • Ductwork Fabrication and Installation: For air distribution in buildings.
  • Fire Protection Systems: Includes sprinkler systems, fire dampers, and smoke control systems.

02

Electrical Services

  • Power Distribution: Installation of electrical panels, transformers, and switchgear.
  • Lighting Systems: Exterior lighting, emergency lighting, and smart lighting controls.
  • Renewable Energy Solutions: Solar, battery storage, and EV charging stations.
  • Data Cabling and Network Systems: Structured cabling, IT infrastructure, and fibre optic installations.

03

Fire Detection and Alarm Systems:

  • Third Party accredited to BAFE SP203-1
  • Voice alarm and public address systems
  • Emergency lighting systems
  • Disabled refuge systems
  • Disabled toilet alarm systems
  • Evacuation Alert Systems:
Third Party accredited to BAFE SP207
  • Security Systems
CCTV systems
Intercom Systems
Access Control
Intruder Alarms
Remote monitoring

03

Plumbing Services

  • Water Supply and Drainage: Piping systems for potable water, wastewater, and stormwater management.
  • Sanitary Installations: Toilets, sinks, showers, and commercial kitchen plumbing.
  • Gas Piping and Distribution: Safe installation of gas lines for heating and industrial use.
  • Hot Water Systems: Boilers, water heaters, and heat pump installations.