What you need to know about installing underfloor heating in an existing home

Get a fast FREE no obligation estimate for Underfloor Heating Request an estimate

Underfloor heating (UFH) offers energy-efficient warmth and is an excellent choice for retrofitting existing homes. There are a number of benefits like enhanced comfort, space utilisation, and savings through energy efficiency. By selecting the right UFH system, following proper installation procedures, and implementing energy-saving measures, you can enjoy the warmth and efficiency of underfloor heating in your current home, and it’s easier than you might think!

Why is UFH ideal for renovation projects?

Underfloor heating is a popular option for renovation projects and older properties because it provides even heat distribution, can eliminate the need for radiators, maximises space utilisation, and can offer enhanced comfort and energy efficiency. Retrofitting UFH allows homeowners to enjoy these benefits without major alterations to the existing structure.

Choosing the right system for retrofitting

When selecting a UFH system for retrofitting you will want to consider many things, but likely at the top of the list is understanding whether you will need to dig up the floor or lose considerable amounts of room height and how possible it is to install.

Modern water underfloor heating like Wunda’s Rapid Response system, means you don’t need to dig up the floor, and consist of low profile insulated boards that only raise the floor height 16-20mm (and the depth of your floor finish / intermediate layers). Plus, if you’re planning on laying tiles or concrete, your floor covering can go straight on top. Electric underfloor heating systems mean that floor height will be raised slightly less, but these systems are far less efficient than water UFH and only recommended for small areas. Water based UFH systems are around 60% less to run than electric systems.

Tips for Retrofitting Underfloor Heating (UFH):

Installing a modern UFH system is not too difficult, and most of the work can be done by a competent DIY’er, if you want to learn more about how easy a Rapid Response system is to install we have this handy video (link or video embed)

Remove and Replace the Existing Floor Finish: To ensure a proper installation, it is recommended to remove the existing floor finish, such as tiles, carpet, or laminate, before installing underfloor heating. This allows for a clean and level surface for the heating system. Once the UFH is installed, you can then replace the floor finish of your choice, taking into consideration any specific requirements for compatibility with underfloor heating.

Clean the Subfloor and ensure it is level: Before installing the underfloor heating system, thoroughly clean the subfloor to remove any debris or dust. This ensures a smooth and even surface for laying your panels or electric matts and your floor finish. If the surface is not even, it is recommended to use a thin layer of levelling screed.

Strengthen the Floor if Needed: It is important to assess the strength and stability of the existing subfloor. If the floor is not sturdy enough or has flexing issues, additional strengthening may be necessary. This might be the case when laying on old floorboards of a joisted floor. Solving this can be achieved by using good quality plywood or other appropriate materials to reinforce the subfloor, ensuring a solid foundation for the underfloor heating system.

Involve a Qualified Tradesman: for certain jobs it is crucial to involve a qualified tradesmen. You will need an electrician for any electrics and a plumber or gas engineer to commission your underfloor heating manifold to the boiler or heat source. Professional assistance will help avoid any electrical hazards and ensure a safe and efficient installation.

Invest in a High-Quality System from a Trusted Supplier: When retrofitting underfloor heating, it is essential to invest in a high-quality system from a reputable supplier. Consider factors such as the reliability of the manufacturer, the performance of the system, and the length of warranties provided for the equipment. Choosing a trusted supplier will give you peace of mind and ensure that you have a reliable and durable underfloor heating system that will last for years to come.

Utilise smart heating controls: Systems such as WundaSmart offer precise temperature control throughout your home and smart radiator heads allow you to create a more flexible hybrid system. With zoning functionality, you can set different temperatures in different rooms

Benefits of installing underfloor heating in an existing home

Underfloor heating not only provides warmth and comfort but also improves indoor air quality. By eliminating dust circulation and reducing allergens, underfloor heating creates a cleaner living environment. It minimises mould and mildew growth by maintaining a consistent temperature, preventing moisture accumulation and respiratory issues. By eliminating dry air and promoting balanced humidity levels, underfloor heating contributes to healthier indoor air quality, providing a breath of fresh air for a comfortable and clean living space. As well as the health factors, a water based underfloor heating system from Wunda comes with a multitude of benefits, you will gain 15% more usable space in each room, save up to 30% on your heating bills and is futureproof and ready for zero carbon, low temperature heat sources, have more comfort in each room that is easily and conveniently controllable.

Floor heating

Save on your heating bills, Control your comfort & Future proof your home.

Request an estimate