grummant heating & plumbing
Commercial Heating, Plumbing & Mechanical Services in Kent
Grummant Heating & Plumbing Services delivers high-quality mechanical, heating, plumbing and ventilation solutions for main contractors, commercial developments and luxury residential projects across Kent and the surrounding counties.
From pre-construction planning through to final commissioning and long-term maintenance
Established in November 1982, we are a family-run business with more than four decades of experience delivering projects with professionalism, precision and care. While we support both domestic and commercial clients, the core of our work is commercial, with around 95% of projects carried out for main contractors, larger developments and premium properties.
We offer a complete service tailored to the demands of modern buildings and high-specification environments. Whether the project is a plant room upgrade, a full heating and plumbing package, a ventilation installation or an ongoing maintenance contract, our team brings the experience, resources and attention to detail needed to deliver with confidence.
We complete more than 300 jobs each year, with project values ranging from £100 to £3 million. Supported by 30+ directly employed staff and 21+ tracked vehicles, we are equipped to respond efficiently, manage multiple projects and maintain the standards expected by contractors, consultants, developers and private clients alike.
A trusted partner from concept to completion
At the earliest stage of your project, we provide practical guidance and technical input to help shape the right solution. Our early-stage services include:
Friendly advice
Drone surveys
Condition surveys
Full design services
Thermal models
BIM mechanical designs
Cost plans
Competitive tendering with fixed sums
Commercial project finance leads to help spread the cost
Dedicated project foreman as your single point of contact
Our work regularly includes:
Gas systems complete
Domestic services
Underfloor heating systems
Radiator heating systems
Gas fired heating systems
Radiant panels and fan convectors
Ventilation systems
B101 compliant ventilation systems
Natural ventilation systems
MVHR ventilation systems
Hybrid systems with ASHP and gas systems
Air source heat pumps
Ground source heat pumps
Biomass systems
Oil fired systems
Air conditioning
Thermal insulation
Flue installation
Building management control systems
Dry risers
Sprinkler systems
Chemical treatment
Above ground soil and waste systems in UPVC, cast iron and HDPE
Supply of sanitaryware
Fix only of sanitaryware
Fire rated ventilation systems complete
Following completion, we continue to support clients with:
Independent testing and commissioning
Guarantee registrations
Operation and maintenance manuals
Client demos
Our ongoing services include:
Seasonal commissioning
Annual servicing of all systems
Gas Safe and landlord gas safety
Legionella testing through a UKAS accredited service
Asset registers
Call outs and breakdowns
Built on long-standing values
Grummant Heating & Plumbing Services remains proudly family-run, and that shapes the way we work. We value reliability, accountability, communication and quality workmanship. These family values, together with our high staff retention and directly employed team, allow us to maintain consistency across every stage of a project.
For total peace of mind, we carry:
£5 m
Public Indemnity Insurance
£5 m
Public Liability Insurance
£10 m
Employers Liability Insurance
