London's Next Generation
Heat Geek Accredited Engineers
Warming London homes
London's Heat Geek Acredited Installers
Your local Heat Geek accredited installer
As Heat Geek Accredited specialists, we design and deliver low-carbon heating systems that are built around energy efficiency, comfort, and control.
We’re not just heat pump installers, we’re system designers. That means looking at your property’s unique layout, your lifestyle, and your energy goals to create a solution that performs better for longer.
Whether you’re upgrading to a heat pump in an Victorian terrace in Camden or installing for a commercial unit in Mayfair, our expert-led approach ensures your new system is sized right, runs efficiently, and saves you money from day one.
London's Heat Geek Accredited Installers
What is Heat Geek Accreditation?
Heat Geek is the UK’s leading training and accreditation programme for heating professionals. Becoming accredited isn’t easy, it means passing tough exams in heat loss calculations, hydraulic balancing, flow temperatures, and smart control integration.
While many installers can fit a system, a Heat Geek understands how to design it properly so that it runs at its most efficient. That means your system won’t just function, it’ll perform at its best.
The result? Lower bills, improved comfort, and peace of mind that your setup is built to last.
London's Heat Geek Acredited Installers
Why we became Heat Geeks?
Too many homes and buildings across London are running on systems that aren’t designed properly.
Oversized boilers, undersized radiators or heat pumps installed without thought to pipework or flow temperature. It might “work” on paper, but in reality? Cold spots, noisy systems, high bills, and wasted energy.
At Warm & Cool London, we became Heat Geeks because we wanted to fix that.
Being Heat Geek Accredited isn’t just a badge. It means we’ve been trained to understand the science behind how heating and cooling systems actually perform in the real world.
We’re not here to guess our way through your install. We’re here to get it right, from day one.
That means:
What Does Heat Geek Accreditation Actually Mean?
Anyone can install a boiler or a heat pump. But a Heat Geek Accredited engineer goes further.
We’ve passed advanced training in:
Every home is different. We start by designing your system around the building, not just the boiler. That means choosing the right type of heating for your space, whether that’s underfloor, radiators, or a mix, and making sure it works with your lifestyle and energy goals.
We don’t guess. We measure. Heat loss calculations help us understand how much heat your home actually needs in each room. That way, we avoid oversizing the boiler or heat pump, which wastes energy and pushes up bills, and make sure you’re heating smarter, not harder.
Why heat the whole home if you’re only in one room? We can split your home into zones and add smart controls so you can control temperatures room-by-room, from your phone. That means more comfort, more control, and less waste.
Most systems in the UK run way hotter than they need to. We design yours to run at lower flow temperatures, which makes your system quieter, more efficient, and ideal for pairing with heat pumps and smart controls. Lower temps = lower running costs.
Heat Pump Packages for Greater London
Vaillant AroTherm
Air-Water Heat Pump
A low carbon heating and hot water solution. Future-proof thanks to the most cutting-edge heat pump technology with natural refrigerant.
Available in the following outputs: 3.5kw, 5kW, 7kW, 10kW and 12kW.
Ideal for retro-fit and new building.
£POA – starting from
Viessmann Vitocal
Air-Water Heat Pump
Advanced inverter-driven compressor ensures exceptional energy efficiency. With a COP of up to 5.0, it delivers high performance and significant energy savings. Versatile system compatibility, ideal for radiators, underfloor heating, and fan coil units. Intuitive smartphone app and smart home integration make temperature control simple and convenient.
Delivers hot water up to 70°C, meeting modern heating demands and preparing for future low-carbon standards. Compact and lightweight design allows for flexible installation in a wide range of properties.
£POA – starting from
Daikin Altherma 3
Air-Water Heat Pump
High-performance compressor with Bluevolution technology offers excellent efficiency. Achieves energy savings with a COP of up to 5.1 for reliable and eco-friendly heating.
Compatible with radiators, underfloor heating, and fan coil units. Simple control via intuitive user interface or smart app for easy operation.
Delivers hot water temperatures up to 70°C. Compact, space-saving design ensures quick and straightforward installation.
£POA – starting from
London's Heat Geek Acredited Installers
Book Your Consultation
Ready to make your home more efficient, comfortable and future-ready?
We offer no-pressure consultations where we:
Use the form below, give us a call, or message us on WhatsApp, we’re happy to help.
Warm & Cool London - Our Heat Geek case studies
Our Recent Heat Geek Installations
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Get in touch
Warm & Cool London
Office Phone : 0203 633 2322
Please use the form or existing customers can respond to our previous email
Warm & Cool London
The Vineyards, 36 Gloucester Avenue, Primrose Hill, LONDON NW1 7BB
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FAQ
We’ve included answers to the questions we hear most often.
Thinking about a heat pump? Wondering if your current system is running efficiently? Not sure what flow temperature means (or why it matters)? You’re in the right place.
These FAQs are designed to share what we’ve learned through advanced training, real-world installations, and plenty of conversations with both home & business owners across London.
As a Heat Geek installers we aren't just trained to fit equipment, we’re trained to design systems for maximum efficiency and comfort. That means we calculate heat loss, optimise flow temperatures, balance your system, and configure smart controls properly. It’s about doing things the right way, not just the fast way.
Not always. It depends on the heat loss of your home and the required flow temperature. As Heat Geeks, we assess your current emitters and let you know if upgrades are needed for your system to run efficiently and quietly, without oversizing or wasting energy.
Flow temperature is the heat of the water flowing through your radiators or underfloor heating. Lower flow temperatures mean higher efficiency and lower running costs, especially with heat pumps. We carefully design systems to run at the lowest effective temperature for your home.
We use room-by-room heat loss calculations, based on insulation levels, window sizes, and floor area. This ensures the system is perfectly matched to your property, not over- or under-sized, which can cause poor performance and higher bills.
It depends on the property. We’ll assess the available space, insulation, and current heating setup. In many cases, flats and maisonettes can be upgraded to heat pumps with the right design, and we’ll tell you if it’s worth doing.
In a well-designed system, a heat pump can be cheaper to run than gas, especially if you're on a heat pump-specific electricity tariff. The key is efficient system design, that's where Heat Geek training makes the difference.
Hydraulic balancing ensures that hot water is distributed evenly to all radiators. Without it, some rooms may overheat while others stay cold. We include balancing in every Heat Geek system, for even heat, reduced noise, and improved comfort.
Smart zones let you control different parts of your home independently, like upstairs vs. downstairs. They’re great for improving comfort and saving energy. We design smart zoning systems that work with new heat pumps.
Weather compensation adjusts your heating based on the outside temperature. On milder days, your system uses less energy. It’s a simple way to improve comfort and reduce running costs, and Heat Geek installers know how to set it up properly.
Yes, the BUS Grant currently offers £7,500 towards the cost of a heat pump installation. We’ll guide you through the application and make sure your system qualifies under MCS guidelines.