OCS Technical Services Limited

OCS Technical Services Limited

Forth House

Pirnhall Business Park

Whins of Milton

Stirling

FK7 8HW

Tel: 07789 745355

ISO 9001, ISO 14001, ISO 45001

Yorkshire & Humberside

West Midlands

South West

London

Eastern Region

North East

North West

South East

Scotland

East Midlands

Legionella Risk Assessment Services

 - Hot and Cold Water Systems Risk Assessment

 - Evaporative Cooling Systems Risk Assessment

 - Process and Other Systems Risk Assessment

 - Healthcare Risk Assessment

Water Treatment Services

 - Hot and Cold Water Systems Water Treatment

 - Evaporative Cooling Systems Water Treatment

 - Process and Other Systems Water Treatment

Hot and Cold Water Monitoring and Inspection Services

Cleaning and Disinfection Services

 - Hot and Cold Water Systems Cleaning and Disinfection

 - Evaporative Cooling Systems Cleaning and Disinfection

 - Process and Other Systems Cleaning and Disinfection

Legionella Monitoring Services

 - Sampling

 - Interpretation of Analysis

Company: OCS Technical Services Limited
Company No: 2013/2275
Certificate Valid Date: 5th Dec 2025
Membership is active while this listing is visible.

Company Overview

OCS Technical Services Limited (previously FES FM Ltd) provides Facilities Management (FM) services to our customers. The performance of services is normally governed by a wider FM contract, rather than a contract exclusively designed for the provision of water hygiene services, so our ability to set out LCA requirements within a “Written agreement” is limited to including such in our water system related documents such as risk assessments and written schemes rather than being documented within the FM contract terms.

As part of that wider FM service offering, we provide water hygiene services for domestic and other “Low” to “Medium” risk water systems. Our water services are delivered using a mixture of in-house labour and LCA registered sub-contractors. We subcontract out to other LCA registered service providers water hygiene services for high risk systems such as cooling towers, evaporative condensers etc and also low to medium risk water systems which are geographically problematic for our in-house capability to service. Subcontracted service providers operate under our control (See section 8).

The water hygiene services we provide are those for which we are registered and have applied for specific LCA service categories. These are:

1 Legionella Risk Assessment Services.

1.1 Hot & cold water services (In-house and sub-contracted).

1.2 Evaporative cooling systems (Sub-contracted).

1.3 Process and other systems (In-house and sub-contracted).

1.4 Healthcare risk assessment (In-house and sub-contracted).

2 Water Treatment Services.

2.1 Hot and Cold Water Systems Water Treatment (Sub-contracted).

2.2 Evaporative Cooling Systems Water Treatment (Sub-contracted).

2.3 Process and Other Systems Water Treatment (Sub-contracted).

3 Hot and Cold Water Monitoring and Inspection Services (In-house and sub-contracted).

4 Cleaning and Disinfection Services.

4.1 Hot and Cold Water Systems Disinfection (In-house and sub-contracted).

4.2 Evaporative Cooling Systems Cleaning and Disinfection (Sub-contracted).

4.3 Process and Other Systems Cleaning and Disinfection (In-house and sub-contracted).

7 Legionella Monitoring Services.

7.1 Sampling (In-house and sub-contracted).

7.4 Interpretation of analysis (In-house and external).

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