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.
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The Heatswap Mission…
Founded in 2022 by our Managing Director, Danu, Heatswap was built on the belief that when it comes to your comfort and energy efficiency, “good enough” simply doesn’t cut it.
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 don’t just swap one unit for another. We are specialist engineers who live and breathe the design, installation, and servicing of complex heating systems. As Heat Geek and MCS accredited installers, our focus is always on performance and efficiency, ensuring your home or business stays warm while your energy bills stay low.
We’re A Heat Geek Certified Installer. Cut Your Energy Bills and Make the Switch.
As a team of proud Heat Geek installers, we bring you the latest in energy-efficient heating technology. Switching to a smarter heating system doesn’t just lower your carbon footprint – it puts money back in your pocket with long-term savings on your energy bills.
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
MCS-accredited and Heat Geek specialists. We focus on the “design-first” approach, ensuring your system is perfectly sized to deliver maximum comfort and efficiency.

Heat Pump Repair & Servicing
We offer expert repairs and servicing to keep your renewable system running exactly as it should, protecting your long-term investment.

Boiler Installation
Efficient new boilers for homes and commercial properties across London, Kent, and the surrounding areas.

Central Heating
We design and install central heating across the South East tailored to how you actually use your space.

Underfloor Heating
We handle the full installation and integration of underfloor heating, ensuring even heat distribution and perfect compatibility with heat pumps or boilers.

Air Conditioning
We install and service high-spec air conditioning for both homes and businesses, ranging from single-room units to complex cooling systems.

Commercial
We work with developers, landlords, and contractors across the region, providing reliable plumbing and heating services that prioritise performance.
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.
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.
Resources & Advice
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The Great Hydrogen Boiler Conspiracy
As the UK’s number one hydrogen fuel cell boiler installer, there is a risk that we could be very biased…
How to Save 51% on Your Energy Bill
The cost of energy is constantly increasing, but there are things that you personally can do at home…
How are Heat Pumps Over 100% Efficient?
A big thanks to fellow Youtuber Andy Rogerson aka EV man who asked for this video, he keeps getting comments…
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.
Certified and Trusted By:
As a team of proud Heat Geek installers, we bring you the latest in energy-efficient heating technology. Switching to a smarter heating system doesn’t just lower your carbon footprint – it puts money back in your pocket with long-term savings on your energy bills.
