Leech Group Services

Leech Group Services Experts in HVAC Solutions & Services. We provide engineering solutions to a wide selection of blue chip companies.

Leech Group Services Ltd are a multi-disciplined air conditioning, mechanical services, refrigeration, ventilation and electrical contractors dedicated to the provision of high quality engineering services in the commercial, leisure, retail and restaurant sectors. Specialising in refurbishment, fitting out and retrofit projects, we have built up an enviable reputation for intuitive solutions, serv

ice and quality whether they be for HVAC installations or mechanical services. We have two operating companies, Leech Mechanical Services Limited, providing air conditioning, heating, ventilation and gas services, Positive Facilities Maintenance Limited, providing electrical and facilities maintenance. Each of the operating companies is led by a highly motivated operations manager and backed up by a 24-hour help desk and a full back office staff to ensure continuity from initiation to successful completion. Both our companies are committed to health and safety, ensuring the safety of both our staff and customers is our highest priority and a constant theme in all our operations. Our engineers are trained in their respective disciplines, fully equipped and directly employed enabling us to provide the highest levels of service and continuity. We hope we may be of assistance in the near future, please do not hesitate to contact us at any time.

30/05/2026
Busy day out meeting clients in the Essex sunshine!Plenty to discuss with an upcoming refurbishment project, a new large...
26/05/2026

Busy day out meeting clients in the Essex sunshine!

Plenty to discuss with an upcoming refurbishment project, a new large restaurant fit-out landing in Q4, and a new long-term PPM contract now underway covering 8 restaurants across the South East, with more in the pipeline. 🤝

Unsurprisingly, AC is top of the agenda… wonder why?!

Another project wrapped up by Team Leech 👏Successful completion of a full HVAC fit-out at Slim Chickens in Poole. This p...
08/04/2026

Another project wrapped up by Team Leech 👏

Successful completion of a full HVAC fit-out at Slim Chickens in Poole.

This project involved the full decommissioning and removal of the existing HVAC systems, making way for a new installation designed and delivered by our team.

Scope of works included:
• Kitchen canopy installation
• Odour control and ESP filtration systems
• Twin split AC system installation

Working within a tight programme, the team delivered on schedule to ensure the client could hit key milestone dates without delay.

A recent retail fit-out completed working airside at East Midlands Airport ✈️Scope included decommission and full strip-...
02/04/2026

A recent retail fit-out completed working airside at East Midlands Airport ✈️

Scope included decommission and full strip-out of the existing HVAC, then installing new split DX systems, fresh air and extract vent upgrades.

All exposed services were sprayed to suit the open ceiling look, keeps everything tidy and in line with the overall finish.

Airside always has its challenges, access, permits, sorting deliveries, but working alongside the team at Ninth Quarter Ltd. made it run smoothly.

Good effort from everyone involved, from start through to completion.

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24/03/2026

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Experienced Reactive Mobile HVAC EngineerLEECH | Experts in HVAC Solutions and ServicesDue to continued growth and contr...
05/03/2026

Experienced Reactive Mobile HVAC Engineer

LEECH | Experts in HVAC Solutions and Services

Due to continued growth and contract expansion, LEECH is looking for an experienced Reactive Mobile HVAC Engineer to join our expanding team.

This role is ideal for a skilled engineer who thrives in reactive environments, excels at fault finding, and takes pride in delivering reliable first-time fixes across commercial HVAC systems.

Working with LEECH, you will be supporting facilities and sites for recognised global brands, maintaining critical HVAC systems that keep businesses running.

The Role

• Reactive maintenance and breakdown response
• Advanced fault finding and diagnostics
• Repair and servicing of commercial HVAC systems
• Ensuring full compliance with industry and safety standards
• Maintaining exceptional client service standards

Essential Requirements

• F-Gas Qualification (mandatory)
• Valid CSCS Card
• Clean UK Driving Licence
• Proven experience in fault finding & diagnostics
• Strong knowledge of commercial HVAC systems

At LEECH, we pride ourselves on delivering dependable HVAC solutions to major organisations and global brands. In return, we offer a competitive salary, company vehicle, ongoing professional development, and the opportunity to grow your career within an established HVAC specialist business.

📩 Apply via LinkedIn or email: [email protected]
📞 Enquiries: 01621 742424

Join the experts.
Build your future with LEECH

On site today ahead of project handover carrying out airflow measurements and system balancing using the Testo 417 Vane ...
20/02/2026

On site today ahead of project handover carrying out airflow measurements and system balancing using the Testo 417 Vane Anemometer Kit.

Airflow measurement and balancing is a key part of making sure an HVAC system is actually performing the way it was designed to. It’s not just about ticking a box, it’s about confirming the system is delivering the right volumes of air to the right spaces.

Using calibrated equipment, we measure and fine tune air volumes to achieve:

✅ Design airflow rates
✅ Correct air changes per hour
✅ Consistent temperature distribution
✅ Good indoor air quality
✅ Efficient fan operation

When a system isn’t balanced properly, the effects go beyond comfort. Energy use increases, components work harder than they should, and long-term reliability suffers.

When you take on a new site and go for the first PPM visit… and the HVAC introduces itself like this..... 🤯 This is exac...
12/02/2026

When you take on a new site and go for the first PPM visit… and the HVAC introduces itself like this..... 🤯

This is exactly why PPM's exist. Glad we’re on board now and taking over the maintenance, this unit is finally getting the attention it’s been missing.

Safe to say… it’s not just the HVAC system that needs a little TLC.

Project complete at Racketeer, Park Royal We’re proud to have delivered the HVAC works on this project, adding another h...
03/02/2026

Project complete at Racketeer, Park Royal

We’re proud to have delivered the HVAC works on this project, adding another high-profile hospitality and leisure venue to the growing LEECH portfolio.

Home to London’s largest indoor padel club with 11 professional-grade courts, this is a standout sport & hospitality environment, a seriously impressive site to be part of.

More growth, more high-quality projects, more to come.

Address

Unit 17 Mapledean Works, Maldon Road
Chelmsford
CM36LG

Opening Hours

Monday 8am - 4pm
Tuesday 8am - 4pm
Wednesday 8am - 4pm
Thursday 8am - 4pm
Friday 8am - 4pm

Telephone

+441621742424

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