Plumbing & Heating Experts Based in Gravesend, Kent

Welcome to Heatswap. Based in Northfleet, we are a dedicated team of industry professionals on a mission to make energy-efficient, sustainable heating accessible and affordable for everyone. Whether you need a high-efficiency boiler, a specialist heat pump installation, or a complete heating redesign, we deliver quality workmanship that stands the test of time.

The Heatswap Mission…

We’ve built our reputation on the pillars of clear, honest communication and a customer experience that feels seamless – from that very first enquiry to the final, precise commissioning of your system. 

We’re A Heat Geek Certified Installer. Cut Your Energy Bills and Make the Switch.

Our Plumbing & Heating Services

We’re helping the South East bridge the gap between traditional plumbing and the next generation of heating – handling everything from routine maintenance to full-scale renewable solutions.

Heat Pump Installation

Heat Pump Repair & Servicing

Boiler Installation

Central Heating

Underfloor Heating

Air Conditioning

Commercial

We Also Provide

Alongside our core services, we offer a wide range of advanced heating, energy, and building technology solutions designed to improve comfort, efficiency, and long-term performance. From intelligent control systems to renewable heating technologies, our services are tailored to both residential and commercial environments.

We install and program Loxone smart building automation systems, a professional, all-in-one platform that intelligently manages lighting, heating, shading, security, audio and more. Using Loxone’s central Miniserver, the system creates seamless automation throughout the property, reducing energy consumption while improving convenience and security. Unlike many consumer smart home systems, Loxone provides a fully integrated ecosystem with deep customisation, allowing us to design truly intelligent buildings that adapt to how you live or work.

Our heating expertise includes gas boiler installations designed with proper heat-loss calculations and weather compensation controls, ensuring systems are correctly sized and operate as efficiently as possible. We also install a full range of heat emitters, including radiators, heated skirting systems, underfloor heating, fan-assisted coil units, and trench heaters, enabling us to design the most effective heating solution for any space.

We specialise in renewable and low-carbon heating technologies, including air source heat pumps (ASHp) supported by the government Boiler Upgrade Scheme (BUS) incentives. In addition, we install water source heat pumps, exhaust air heat pumps, ground source heat pumps, hybrid systems and cascade systems for larger or more complex properties.

Our team also installs air conditioning systems and solar thermal solutions to further improve comfort and energy efficiency.

For larger buildings and shared systems, we design and install communal plant rooms, along with advanced energy management systems that monitor and optimise water, heating, and electricity usage. To improve air quality and reduce heat loss, we also install mechanical ventilation with heat recovery (MVHR) systems, providing fresh air while maintaining indoor temperature efficiency.

Supporting all installations, we provide mechanical design and consultation services, including detailed heat-loss calculations using the latest industry software, ensuring every system is carefully planned for maximum performance, reliability, and efficiency.

Areas We Cover Across the South East

Based in Northfleet, Heatswap is perfectly positioned to serve residential and commercial clients across the South East. From boiler repairs in the heart of London to large-scale heat pump installations in the Kent countryside.

London
Essex
Surrey
Kent
Berkshire
East Sussex

Why Choose Heatswap?

We take our trade seriously. When you hire Heatswap, you’re hiring a team backed by the industry’s most respected bodies and years of hands-on experience.

Fully Accredited For
Your Peace of Mind  

We hold every major accreditation required to work safely and efficiently, including Gas Safe and F-Gas certification for cooling systems, and Heat Geek and MCS certifications.

A Truly End-to-End Service

Whether it’s a simple boiler swap or a large-scale commercial upgrade, we handle everything. From initial design and consultancy to installation, commissioning, and ongoing maintenance.

Leading Brand Partners

We are approved installers for the best in the business, including Vaillant, Samsung, and Mitsubishi. When you choose Heatswap, you’re getting premium hardware backed by expert installation and full manufacturer warranties.

Integrity at Our Core

Our team is built on clear communication and transparency. We pride ourselves on being professional, punctual, and – above all – honest about what system is right for your specific needs.

Resources & Advice

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Ready to Future-Proof Your Heating?

Whether you’re dealing with a leaky pipe, an aging boiler, or you’re ready to transition to a high-efficiency air source heat pump,
Danu and the team are here to help. We provide expert advice and high-quality installations across London, Kent, and the South East.
Let’s get your system running exactly as it should.

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