Yes, retrofitting underfloor heating into your home is not just possible, but also increasingly popular. Renovating a house doesn’t present the blank canvas that a new build does, yet modern retrofit radiant floor heating systems are designed to integrate seamlessly.
retrofit radiant floor heating
With advancements in technology, solutions are available to overcome architectural challenges, ensuring a warm and comfortable home regardless of age or design.
The beauty of electric radiant heating is its flexibility. If there’s access to floor joists from below, such as in unfinished basements, adding radiant heating is straightforward without the need to alter the flooring above.
Even with finished ceilings or floors, the process is as simple as removing the ceiling drywall, installing the heating system, and then replacing the drywall. Your pristine floors remain untouched.
Is it a good idea to retrofit radiant floor heating?
Absolutely. While the process of retrofitting is inherently more complex than installations in new constructions, it’s less daunting and more affordable than many homeowners imagine.
The efficiency and luxury of underfloor heating retrofit can elevate the living experience.
Moreover, in most retrofit projects, homeowners won’t need to tear up the existing floor completely, making it a more accessible choice for many.
How does retrofit radiant floor heating work?
Electric radiant heating mats, thin and efficient, are stapled to the subfloor between the joists and beneath the finished flooring.
The heat radiates upwards, seamlessly transitioning through the subfloor and the flooring above. This ensures warmth and comfort throughout the year without any major alterations to your current flooring.
The general process is as follows:
- Count the number of joist bays
- Measure the width and length of the joist bays.
- Design the system/layout based on the results
- Cut the heating elements to the desired length
- Secure them with staples to the underside of the joists
- Connect the heating element to the transformer with the appropriate wiring
- Add the insulation (usually batt or rigid foam)
What areas of the house can be retrofitted with radiant floor heating?
- 1st Floor Living Spaces: The primary areas of the home where families spend most of their time.
- Upstairs Bedrooms and Bathrooms: Ensuring a cosy wakeup and a warm step post-shower.
- Basements: Often the coldest part of a home can be transformed into a warm living or recreational space.



