How to Retrofit Your Home to Save Energy

Are you tired of receiving high energy bills every month? Do you want to reduce your carbon footprint and contribute to a healthier planet? Retrofitting your home can help you achieve both of these goals. Retrofitting is the process of upgrading existing homes with energy-efficient features to save energy and reduce waste. In this blog post, we will guide you on how to retrofit your home to save energy.


How Energy Efficient is Your Home?

Before retrofitting your home, it is crucial to conduct a home energy audit to identify areas where you can make improvements. An energy audit will help you understand your home’s energy consumption and how to make it more energy-efficient. You can hire a professional energy auditor or conduct a DIY audit using a home energy audit kit.

Install Insulation


Retrofit insulation


One of the most important steps you can take to improve the energy efficiency of your home is to install insulation. Properly installed insulation helps keep warm air in during the winter and cool air in during the summer, reducing the amount of energy needed to heat and cool your home. It also helps reduce noise levels and makes it easier to maintain a comfortable temperature throughout the year. When installing insulation, be sure to use materials that are rated for the climate where you live.

Average cost: £1400-£10,000

Replace Old Windows


Retrofit Windows


Old windows can be a major source of heat loss in a home, so replacing them with new, energy-efficient windows can help reduce energy costs significantly. Look for windows that are rated for high efficiency, such as those with double or triple glazing to ensure heat is reflected back into the room instead of escaping outside.

Average cost: Depending on the size of your home, you can pay anything up to £16,800 for uPVC windows and thousands more for timber and composite frames.

Install a Water Conditioner

It isn’t widely known that the hardness of your water may actually be costing you a great deal more than you realise. When hard water is allowed to course its way through your home, it leaves behind limescale buildup in your appliances and plumbing. Over time, this significantly reduces the efficiency of boilers, kettles, washing machines and any other appliance that uses water. Not only does it use a lot more energy, limescale is also the cause of appliance breakdowns and in some cases, this damage is irreparable.

The Halcyan Water Conditioner is a simple solution which will not only reduce your energy bills, but will protect your existing appliances and remove limescale from your home. The single cost of installing a Halcyan can give you around £500 savings on your annual energy bills!

Average cost £770 + fitting

Install a Smart Thermostat


Retrofit smart thermostat


Smart thermostats allow you to control your heating and cooling system remotely from anywhere using an app on your smartphone or tablet device. They also learn from your usage patterns over time so they can automatically adjust temperatures when you’re away or asleep—helping you save even more money on utilities without sacrificing comfort levels in your home. Smart thermostats are easy to install and can be controlled from anywhere with an internet connection, making them a great way to save energy without having to make any major changes around the house.

Average cost: £120-220


Retrofitting your home requires an initial investment, but the long-term benefits are significant. From reducing your bills to improving your home’s carbon footprint, it’s a great idea to see where you can make improvements. By taking these steps, you can enjoy modern, planet-friendly features that will help reduce overall energy consumption while keeping it comfortable all year round—saving you money on utilities in the process!

If you’d like to find out more about the Halcyan Water Conditioner, you can explore our Knowledge Centre and find out how it works here. You can call our expert team on 0345 504 0656 for more information on whether you have hard water and how you can benefit from installing a Halcyan. 

Why choose Halcyan?

Halcyan Water Conditioners is a British company based in Bristol and our alloy-based solution to hard water is unique to the UK. While there are many ways to retrofit your home to save on energy and bills, our alloy-based Water Conditioner is an eco-friendly, people-friendly solution to hard water too! If you’ve had enough of rising energy bills, get in touch with us to see how our Halcyan Water Conditioner can help. With our 30 Year Warranty and our 12 Month Money Back Performance Guarantee, you can be sure that you’ll enjoy the benefits of your investment for many years to come!

Learn More

Halcyan to feature in elemental’s panel – Unsung Heroes of Energy Saving

Ahead of a panel discussion at InstallerSHOW on 28th June on some of the lesser known energy-saving products available, elemental are previewing a selection of the solutions that will be featured.

elemental is hosting three days of live panel discussions and Q&As at InstallerSHOW again this year, exploring energy efficiency in buildings and decarbonisation, with expert speakers to inspire and inform our audience, including our very own CEO, Samantha Mant.

elemental are hosting a session on 28th June showcasing some of the unsung heroes of energy saving – those products that can help a building cut down its energy use, but might not be as widely known as technologies like heat pumps and solar panels. Discussions will include the buildings they are suitable for, technologies that they might work well alongside and practical advice on including these solutions in your retrofit and newbuild projects.

The session will be hosted by BBC journalist Anne Davies and here is a taste of the technologies and solutions that will be discussed:

Halcyan Water Conditioners

Limescale (from hard water) is an excellent insulating material, with every 1mm on any heating element increasing its energy consumption by 7-10%! It also significantly increases maintenance, diminishes equipment life, and is entirely preventable.

Halcyan Water Conditioners prevent new limescale accumulating and remove existing deposits, so getting and keeping systems in good working order. An average home can save around 0.6 tonnes Co2e a year or roughly £500 by treating the hard water effectively.

Halcyan’s alloy core achieves excellent results without the use of any energy or chemicals, there are no ongoing costs or maintenance, and each unit lasts over 30 years.

WRAS certified and with a full range of sizes from 5 lpm to 7000 lpm, Halcyan can accommodate the requirements of any system, domestic, residential, commercial or industrial.



EcoDuct saves up to 45% of the HVAC energy consumption of a building in which it is installed. Total HVAC costs have been estimated at up to 30% of the 30-year lifecycle cost of a typical building, so the saving could be as high as 13.5% of total costs. This is achieved by a combination of factors:

  1. Rounded shape of the ductwork giving greater efficiency
  2. Best in class for airtightness and pressure resistance – no leakages
  3. Best thermal performance from the phenolic insulation
  4. Internal connections with no thermal bridges and energy losses
  5. Lower internal frictional resistance, giving lower pressure drops

EcoDuct is suitable for any insulated ductwork in all types of buildings – commercial, industrial, public and residential. It is also suitable for any construction process – new build, retrofit and offsite modular.



Mixergy are market leaders in smart and connected hot water cylinders. Its “heat what you need” technology is saving energy and households up to 40% on their hot water bills, while heating their water up to 10x faster.

The Energy Savings Trust has verified a Mixergy cylinder reduces gas consumption by as much as 12%. If a boiler is short cycling regularly, Mixergy eradicates this and the consumption saving rises by as much 21%.

The smart cylinders are suitable for any domestic property and connect to any heat source (gas boilers, solar PV, heat pumps).



The single biggest heat loss in your home comes from the great big holes in your roof…the chimneys. They act like an open window 24 hrs a day, seven days a week, sucking all your warm air out of your home and pulling all the cold air in. With one push of a button a Chimella opens up its energy saving canopy inside your fireplace and reduces heat loss by over 95%. It also catches the dirt too and its canopy trickle system prevents any damp forming in your chimney.
It will fit in any chimney in any home but is a must have for listed properties, plus Georgian, Victorian and Edwardian homes.

Showersave – Waste Water Heat Recovery

Recognised as a renewable technology in both SAP & SBEM, the products are a simple & easy to install energy saving appliance. Now fitted in over 100 000 homes across the UK & Europe, the range of products means there is a solution for your project no matter if you’re building an apartment, a bungalow, a house or a commercial development.

By installing Showersave, you are cutting your energy requirements and therefore saving money & cutting down on your carbon output. Showersave products are WRAS approved & Passivhaus certified giving you the head start you need in your new, energy efficient projects.


There will be lots more energy-saving solutions to discover, to register for InstallerSHOW, which is 27th to 29th June at the NEC in Birmingham, simply visit: installer-2023-visitor.reg.buzz

Check out the elemental programme here: installershow.com/event-timetable

Learn More