Mechanical Services

Qualified and Certified Engineers

Professional and reliable Mechanical Services

OCO Ltd provides a range of commercial and domestics gas mechanical services. Our engineers operate to the highest standards and many are certified through our sister company Bromley Training and Assessment Centre (BTAAC).

Installations & design

We oversee the design, installation and servicing of domestic and commercial gas systems throughout the UK. Our commercial work includes installation of boilers, industrial-heating systems and heating-related projects. Our domestic and residential housing arm covers a comprehensive range of plumbing and heating services.

24/7 Emergency gas service & breakdown repairs

We offer expert emergency repairs, recovery and refurbishment for all gas and heating-related appliances. Our network of experienced gas-certified engineers are all gas safe registered and vetted to ensure you’re back up an running asap. We’re on call 24 hours a day, 7 days a week.

Planned maintenance

It’s important for commercial and domestic premises to maintain heating equipment and to ensure it’s safe and performing at its best. To keep you safe, secure and up and running, we offer annual boiler service, gas safety inspections, planned preventative maintenance, and repairs & replacements for all domestic and commercial heating equipment.

Landlord Gas Safety checks

Annual gas appliance and flue safety check from a registered Gas Safe engineer, required for the CP12 certificate (CORGI Proforma) that is needed to legally rent a domestic property.


We offer domestic and industrial boiler refurbishment, upgrades and improvements for units that need fixing or optimising, but not replacing.

Ventilation/Air Conditioning

We offer complete design, installation, service and refurbishment of ventilation and air conditioning units. We work with wall-mounted air con, void mounted ducted units and ceiling air conditioning cassettes.

If you would like any more information about our range of mechanical services and how it can help your property, speak to one of our experienced staff at OCO Limited. Contact us today to discuss your requirements.

Need to find out more on our services?

Contact Us

Get in touch

To speak to us about any of our products or services, please feel free to contact us by telephone, email or via the contact form.

Head Office

020 8315 5600

General Enquiries

To speak directly to a specific service department please visit our contact page by clicking link below:

Covid - UK government approved guidelines

OCO Limited work according to UK government approved guidelines, health and safety at work laws and legislation. We are always here to help you.
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OCO Limited is a Limited Liability Company
Company No: 01418006 | VAT Registration Number: 250178478
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