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Services
Certification: For rented properties it is the Landlord's responsibility to ensure it is gas safe and they must be able to provide their tenants with an up-to-date Gas Safety Certificate to show that boilers and.. Read More
Gas Services: Gas Safe Register maintain the register of businesses and operatives who are competent to undertake both piped natural gas and liquefied petroleum gas (LPG) in Great Britain, Northern Ireland.. Read More
Electrical Services: After a number of years wires in a home or commercial building can become damaged through DIY or just general deterioration. In this instance a rewire of the house of affected areas.. Read More
Plumbing Services: The Water Supply (Water Fittings) Regulations 1999 (the Regulations) are national government requirements for the design, installation and maintenance of plumbing systems, water fittings.. Read More
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Portable appliance testing 
Gas Safe Register is the official register for gas safety
What is the FMB? 
NICEIC- What are the requirements of Part P?
At the heart of what we do is our national online database, the UK's largest register for pre-qualified contractors and consultants. Read More
Pat testing or portable appliance testing is an important part of any health & safety policy. This site is intended as a guide to both the legal implications and to the technical requirements. Read More
We’re the official list of gas engineers who are registered to work safely and legally on boilers, cookers, fires and all other gas appliances. Read More
The FMB is the UK's largest trade association in the building sector, with national offices in England, Northern Ireland, Scotland and Wales, supported by additional regional offices. Read More
NICEIC is the UK electrical contracting industry’s independent voluntary body. We offer leading certification services, Building Regulations Schemes, products and support Read More
As of 1 January 2005 it is a legal requirement for all work on fixed electrical installations in dwellings and associated buildings to comply with relevant standards. Read More
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Annual Safety Certificate
I used CSI Ltd to carry out an extensive PAT testing at my dental practice...
Dr Reza Farid Dental Practice
Honestly Prices
I received a price from CSI for a new boiler installation but I decided to go with another company that gave me very cheaper ...
Shirin N9
Gas & Electrical Safety Certificate
Very helpful staff over the phone and also on the day of the engineer's visit the guy was really friendly...
David EN4
Efficient and Organized
CSI Ltd were extremely professional from the initial quote to the end of the job.
Birdwatch Magazine
Contact Details
- 22 Westbrook Crescent,
- Cockfosters, Barnet,
- London, EN4 9AR
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Vat Reg: 992 6709 68
Company Reg: 7257549
Gas Reg: 529394
NICEIC Reg: 502404
Constructionline Reg:121406
Health&Safety Reg: (CHAS)