Mechanical Engineering Specialists | South East

Decades of Engineering Experience. One Standard of Absolute Reliability.

We provide the technical certainty Facilities Managers demand.

YMEC has evolved into a strategic partner for high-stakes environments across the South East. We don’t just service assets; we secure your site’s operation.

The YMEC Standard

We protect your operational continuity.

We don’t just fix boilers or install AC units; we manage risk.

Our role is to ensure that schools stay open, hospitals remain compliant, and commercial offices stay productive. By moving away from the "break-fix" cycle and toward a strategy of methodical design and pragmatic execution, our mission is to remove the frustration from site management entirely.

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DBS Checked
Alcumus SafeContractor logo
Alcumus
Daikin & Mitsubishi Partner Status
Refcom Logo
REFCOM Certified
Gas Safe Logo
Gas Safe Registered

Regional Coverage

Local Presence. Regional Scale.

Based in Horsham, YMEC is strategically positioned to provide rapid-response mechanical engineering across West Sussex, Surrey, and Greater London.

We understand that for a Facilities Manager, "local" means more than just a postcode - it means an engineer who understands the logistical nuances of the South East and can be on-site when it counts.

 
Strategic coverage across the South East, anchored by our Horsham HQ. We don’t just serve these areas - we live in them, ensuring rapid response times and local accountability for every site we manage.

West Sussex

Primary Response Zone.
Horsham (HQ)
Crawley
Worthing
Chichester
Haywards Heath
East Grinstead

Surrey

Extended Coverage: Emergency Support
Guildford
Woking
Reigate
Epsom
Redhill
Dorking

GREATER LONDON

High-Compliance & Commercial Specialists
Bromley (Regional Limit)
Twickenham (Regional Limit)
Croydon
Sutton
Kingston upon Thames
Richmond

Service & Coverage FAQs

Everything you need to know about our regional service.

For our contracted customers, we provide a same-day visit for critical emergencies—such as a total loss of heating/hot water or a gas leak—provided the call is logged before 3:00 PM.

Any emergencies reported after this time will be prioritized for attendance on the next working day.

Yes. We pride ourselves on a regional recruitment model. By having engineers strategically located across the South East, we minimise travel time and ensure our team has local knowledge of the sites and infrastructure they maintain.

Absolutely. We currently act as the primary mechanical partner for several multi-site estates spanning Sussex, Surrey, and Kent. This allows Facilities Managers to have a single point of contact and a unified compliance trail across their entire portfolio.

No. To maintain our rapid response times, we focus our service on Greater London, specifically covering areas such as Bromley and Twickenham. We no longer operate within Central London or ULEZ zones, allowing our fleet to remain dedicated to our core service areas in the South East.

For our Primary Response Zones (West Sussex and immediate Surrey), we aim for a 60-90 minute on-site arrival for critical failures. For extended areas, we provide a tiered response based on your specific Service Level Agreement (SLA).

Company Heritage

Engineering Heritage.

YMEC isn't a faceless corporation; we are a family-led engineering firm with a 40-year legacy.

Founded by Ron Greene and now led by Russ Greene, our growth has been driven by a singular focus: providing Facilities Managers with the technical certainty they need to keep sites operational.

We combine the personal accountability of a local business with the rigorous compliance standards of a national contractor, ensuring that every project is backed by decades of "boots on the ground" experience.

Ymec Facilities HVAC Team

The Ymec Facilities Team

Ron Greene YMEC Founder and Consultant

Ron Greene

Founder & Consultant
Russell Greene Ymec Director & Gas Safe Engineer

Russ Greene

Director & Gas Safe Engineer
Tom Greene YMEC Plumber

Tom Greene

Plumber
Tom Humphrey YMEC Gas Safe Engineer

Tom Humphrey

Gas Safe Engineer
Peter Kaffo YMEC Gas Safe Engineer

Peter Kaffo

Gas Safe Engineer
Lee Bonnie YMEC Electrician

Lee Bonnie

Electrician
Rachel Greene YMEC Office Manager

Rachel Greene

Office Manager

Our core values

Why Facility Managers Trust Us.

At YMEC, values aren't just words on a mission statement board, they are the protocols our engineers follow every time they enter your plant room. We combine rigid regulatory compliance with a transparent, jargon-free approach to ensure your facility remains safe, efficient, and fully operational 24/7.

Outcome-Led Service

Your Priorities, Our Blueprint.
We measure success by your uptime, not our internal metrics. Every action we take is designed to protect your site’s continuity and simplify your daily operational worklo

Radical Reliability

On time and ready.
In an industry of "no-shows," YMEC is the constant. We arrive on schedule, deliver on our promises, and stay on-site until the technical objective is fully achieved.

Plain-English Reporting

Transparency Without the Jargon.
We swap complex engineering "noise" for actionable data. Our reports are clear, concise, and audit-ready, ensuring you can brief your stakeholders with total confidence.

Absolute Professionalism

Expert Conduct, Every Visit.
Our engineers are more than just technicians; they are vetted professionals. Expect high-level technical conduct, strict site-safety compliance, and zero disruption to yo

Lived Expertise

Qualifications Met with Experience.
We don’t just carry the cards; we know the plant rooms. Our solutions are built on years of lived engineering experience and up-to-the-minute regulatory compliance.

Open 24/7

Always on call

Customer reviews

We're proud of our long standing relationships with facility managers and teams

We don’t just install systems; we manage the environments that allow our clients to thrive. Our reputation is built on the long-term trust of Facilities Managers, Business Owners, and Headteachers who rely on us to keep their operations seamless.

Exceptional Company and Corporate HVAC Service and Maintenance Plans

I wouldn't hesitate to recommend them to anyone
Tracey Jones
Maintenance Client

Experience Technical Certainty.

Your Site, Secured.
We don’t just fix machines; we protect your continuity. Whether you’re managing a single healthcare facility or a multi-county estate, YMEC provides the Integrity, Compliance, and Rapid Response you need to stop managing crises and start managing strategy.

Contact Us Now
Book a site audit or speak to one of our engineers
We're proud of our long standing relationships with facility managers and teams
HVAC Installation, Maintenance & Repair Specialists