Business Details
Expert HVAC Installation & Maintenance Services
Established over 25 years ago, Gray's Mechanical Services has built a reputation as a trusted provider of mechanical and HVAC solutions. Our family-run business combines technical expertise with a commitment to sustainability, delivering tailored installations and maintenance services across residential, commercial, and industrial sectors. With a team of certified engineers and partnerships with leading manufacturers like Daikin, we prioritise energy efficiency and operational excellence.Our proactive approach to planned preventative maintenance ensures long-term reliability for clients ranging from retail stores to medical facilities. Backed by accreditations including Safe Contractor verification and F-Gas registration, we maintain rigorous health and safety standards while fostering lasting client relationships through transparent communication and exceptional service.
Services
Mechanical Services Install
HVAC Design & Installation
Planned Preventative Maintenance
Commercial HVAC Solutions
Residential HVAC Services
Highlights and features
- We have over 25 years of experience in mechanical services
- Our team includes Daikin-certified and F-Gas-registered engineers
- We offer tailored planned preventative maintenance programmes
- We prioritise energy-efficient and sustainable HVAC solutions
- Our family-run business maintains rigorous health and safety standards
Associations and certifications
- Safe PQQ Verified
- Safe Contractor Verified
- Daikin Certified Installer
- F-Gas Registered
What people say
Great Value for money
Excellent engineers
Customer services
Proactive maintenance
Energy-efficient solutions
Services
Mechanical Services Install
Our mechanical installation service delivers cutting-edge HVAC systems tailored to specific property requirements. We specialise in integrating energy-efficient solutions for optimal climate control in residential and commercial spaces. With certified engineers and manufacturer partnerships, we ensure precise installation that meets current building regulations while prioritising long-term operational efficiency.
Planned Preventative Maintenance
We develop customised maintenance schedules to maximise system longevity and performance. Our proactive approach includes regular inspections, component testing, and performance optimisation for commercial HVAC systems. This prevents unexpected breakdowns and maintains energy efficiency across managed sites in retail and office environments.
Commercial HVAC Solutions
Tailored climate control solutions for commercial properties including retail stores, office buildings, and hospitality venues. Our services cover system design, installation, and ongoing maintenance with a focus on creating comfortable environments while minimising energy consumption through advanced control systems and monitoring.
Residential HVAC Services
Specialist HVAC solutions for domestic properties ensuring year-round comfort. We install and maintain high-efficiency heating, ventilation, and air conditioning systems adapted to individual home requirements. Our approach balances performance with energy conservation to meet modern sustainability standards.
Design & Installation
Comprehensive HVAC design and implementation from concept to completion. Our team creates bespoke solutions using AutoCAD and Revit MEP software, ensuring seamless integration with existing building infrastructure. We deliver systems that combine technical precision with energy-efficient operation for both new builds and retrofit projects.
People
Simon Gray
Managing Director
With 27 years in the HVAC industry, Simon established GMS after senior roles at Heathrow Airport and HM Air Cooling. He holds advanced qualifications in building services and business management, overseeing all operational aspects.
Vanessa Gray
Finance Director
Bringing 20+ years of accountancy experience, Vanessa manages financial operations, HR, and health & safety compliance. Her background in local business finance ensures robust financial management for the company's growth.
Philip Gray
Office Manager
With 30 years of management experience, Philip oversees daily operations from headquarters. His extensive background in franchise management contributes to efficient administrative processes and client relationship management.
Callum Gray
Contracts Manager
Since joining in 2019, Callum has become essential to project coordination. His AutoCAD and Revit MEP expertise enables in-house production of design and as-installed drawings for complex HVAC projects.
Ilhan Kalkan
Service Engineer
A fully qualified City & Guilds F-Gas engineer, Ilhan specialises in Daikin VRV IV systems and Toshiba equipment. His technical expertise covers commissioning, fault finding, and maintenance of multi-site HVAC installations.
Questions
What HVAC services do you offer?
We provide full-cycle HVAC solutions including system design, installation, planned preventative maintenance, and emergency repairs for residential and commercial properties.
Are your engineers certified?
Yes, our team includes Daikin-certified installers and F-Gas-registered engineers with qualifications in City Multi systems and VRV IV installation.
Do you offer maintenance contracts?
We specialise in tailored planned preventative maintenance programmes to optimise system performance and extend equipment lifespan for commercial clients.
Which areas do you cover?
We operate across Buckinghamshire and Greater London, serving locations including Bourne End, Oxford, Wimbledon, and Canary Wharf.
