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Underfloor heating is a luxurious yet cost-effective way of heating your bathroom. It retains heat better than traditional radiators, is more energy efficient, and feels lovely on your feet. It’s got the added benefit of staying hidden for maximising tight spaces, and it can even boost your property.
But is underfloor heating expensive to buy? How much does it cost to install and maintain? And is it worth the expense?
One of the biggest drawbacks of underfloor heating is the up-front cost. But these days, there are many affordable options, such as dry systems that don’t need hot water pipes. These systems use rolled electric mats and they’re easier to install than wet systems.
Typically, electric underfloor heating is charged at £40 – £75 per square metre. Water systems are more expensive. They can cost up to £100+ per square metre. You’ll also need to consider tradesmen fees, thermostats and controls, and other installation / building costs.
If you’re looking for a cheap underfloor heating solution that doesn’t take loads of work, try an underfloor heating mat. As an example, the Devi Comfort Underfloor Heating Mat 150T (suitable for concrete and wooden floors) starts at just £47.50 per 1.0m2.
For the average bathroom size of 3.5m2, that’s less than £170 in underfloor heating materials.
The price of installation can be hard to work out. This is because rates differ based on where you live, so shop around for a good deal. The price will also vary based on the size and type of your system, whether your house is a new build, and how much insulation you need.
Underfloor heating is usually easier and cheaper to install in a new build house, because the floors haven’t been laid down yet. These days though, modern heating mats are made to be ultra-thin and easy to connect. So, if you’re using an electrical system, you should’t have too many problems with an older property either. With the growing popularity of complete underfloor heating kits, you can even install systems yourself – if you’re confident in your DIY skills.
For wet underfloor heating, you need to do a fair amount of work before laying water pipes, so expect high installation costs.
Underfloor heating is cheap to buy, but is dry underfloor heating expensive to run? Compared to standard radiators, it can be an affordable way to heat the home. For bathrooms, it’s the perfect option: it keeps your feet toasty while being energy-efficient.
Electrical systems are pricier to run than water systems, but proper insulation can cut costs by reducing the heat-up time. This can actually shrink running costs by as much as 50%.
Underfloor heating is also ideal for bigger, full-sized bathrooms. This is because radiators create hot and cold spots, so you need to turn them up to full to heat the whole space. Underfloor systems, on the other hand, create a ‘radiant heat’. This means it’s more efficient at lower temperatures and evenly distributed from the floor up.
The cost of underfloor systems also depends on other factors, such as:
Gas is cheaper than electricity, but electric underfloor heating with a thermostat is 99% efficient. This means it’s better for saving energy in the long run.
Electrical heaters also tend to last longer because they don’t have moving parts, whereas boilers only last for around 10 years.
When working out the underfloor heating cost for your bathroom, here’s what you need to do:
Work out the cost of materials by measuring your room. Measure the length and width then multiply these figures to get the total square metres.
A typical installation quote is between £200 and £300 per day. Bathrooms usually take between 1 and 1.5 days to complete.
We recommend choosing a brand that offers lifetime guarantees (like DWS Warmup), or anything over 20 years.
To find the cheapest electrical underfloor heating systems available, take a look at our Devi and DWS Warmup products.
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