Wet underfloor heating uses warm water pipes connected to your boiler or heat pump, while electric underfloor heating uses electric cables or mats under the floor. In Glasgow, wet systems suit whole-house new builds and major renovations, while electric systems suit single rooms like bathrooms and kitchens where a quick, lower-cost retrofit is needed. Which one is right for you comes down to budget, the room size, and whether you’re renovating one room or the whole house.
What Is Underfloor Heating?
Underfloor heating (UFH) warms a room from the floor up rather than from a wall-mounted radiator. Heat rises evenly across the whole floor area, so rooms feel warm at ankle height as well as head height something radiators struggle to do. In our experience, it’s one of the most requested upgrades from Glasgow homeowners doing a bathroom renovation or kitchen extension.
The Two Main Types
- Wet (hydronic) underfloor heating a network of water pipes laid under the floor, connected to your central heating system or a heat pump
- Electric underfloor heating thin heating cables or mats laid directly under the floor covering, wired into the mains electricity supply
Wet Underfloor Heating: How It Works in a Glasgow Home
Wet systems run off your existing boiler installation or a heat pump, with a manifold controlling water flow to each room. Because the pipework needs to be embedded in a floor screed, wet systems work best in new builds, extensions, or full renovations where floors are being dug up anyway.
Many older Glasgow tenement and sandstone properties have solid concrete or timber floors that make retrofitting wet systems disruptive and expensive, which is why we usually recommend wet UFH for ground-floor extensions and full renovations rather than a single upstairs bathroom.
Pros of Wet Underfloor Heating
- Cheaper to run than electric, especially across larger areas
- Works well with heat pumps, supporting lower-carbon heating
- Suited to whole-house heating, not just single rooms
Cons of Wet Underfloor Heating
- Higher installation cost due to pipework and floor build-up
- Disruptive to install in an existing floor without a full renovation
- Slower to heat up and cool down than electric
Electric Underfloor Heating: How It Works in a Glasgow Home
Electric systems use thin heating cables or a mat, usually no more than a few millimetres thick, installed directly beneath tiles, laminate, or engineered wood. Because there’s no pipework or manifold, electric UFH adds very little height to the floor, which makes it the practical choice for a single bathroom or kitchen retrofit where you don’t want to lose ceiling height or disturb the rest of the house.
Pros of Electric Underfloor Heating
- Lower upfront installation cost for single rooms
- Fast to install often in a day for a small bathroom
- Heats up quickly, ideal for a bathroom used at set times of day
Cons of Electric Underfloor Heating
- Higher running cost than wet systems, since it uses electricity directly
- Less cost-effective for heating a whole house
- Not usually a replacement for your main central heating system
How Much Does Underfloor Heating Cost in Glasgow? (2026)
| System | Typical Room / Area | Installation Cost (2026) |
| Electric UFH | Small bathroom (4–6m²) | £450 – £900 |
| Electric UFH | Kitchen (10–15m²) | £900 – £1,600 |
| Wet UFH | Single extension room (20m²) | £2,000 – £3,500 |
| Wet UFH | Whole ground floor (60m²+) | £4,500 – £8,000+ |
Prices vary depending on floor build-up, whether existing flooring needs to be removed, and the finish you’re laying on top. We always give a fixed, written quote after seeing the property, since every Glasgow property is a little different.
Which One Should You Choose?
| Your Situation | Best Option |
| Single bathroom or ensuite retrofit | Electric |
| Kitchen retrofit with existing boiler nearby | Electric or Wet, depending on access |
| New extension or full renovation | Wet |
| Whole-house new build | Wet, ideally paired with a heat pump |
| Tight budget, one room only | Electric |
Glasgow-Specific Considerations
Tenement and Sandstone Flats
Many Glasgow tenement flats have suspended timber floors, which limits how much floor build-up you can add without affecting doors and skirting. Electric mats are usually the more practical fit here, since they add very little height.
New Build Estates Around Glasgow
Newer developments in and around East Kilbride and Paisley often already have wet UFH designed in at the concrete slab stage in these cases, extending the existing system is far more cost-effective than retrofitting.
Older Sandstone Properties in the West End and South Side
Solid stone or concrete ground floors are common in older Glasgow properties. Digging these up for wet pipework is a bigger job, so we usually only recommend it as part of a wider renovation rather than a standalone project.
Why Choose a Gas Safe Certified Engineer?
If your underfloor heating connects to a boiler or heat pump, that connection is Gas Safe Register-regulated work and must be carried out by a registered engineer under the Gas Safety (Installation and Use) Regulations 1998. Precision Renovators is led by a Gas Safe registered engineer, so any UFH work tied into your boiler servicing or heating system is carried out and signed off correctly, with a certificate you can keep for your records.
Choosing an efficient heating setup also matters for running costs the Energy Saving Trust has independent guidance on how heat pumps and underfloor heating work together efficiently, and homeowners looking to upgrade may be able to check eligibility for the Boiler Upgrade Scheme grant.
Frequently Asked Questions
Is wet or electric underfloor heating cheaper to run?
Wet underfloor heating is usually cheaper to run, especially over larger areas, because it uses your boiler or heat pump rather than drawing electricity directly. Electric UFH costs more per hour to run but is cheaper to install in a single room.
Can I install underfloor heating without lifting the whole floor?
Electric underfloor heating mats can often be installed with minimal disruption, sitting just under the tile or floor covering. Wet systems generally need a deeper floor build-up, which is why they’re usually done alongside a full renovation.
How long does underfloor heating take to install?
A single bathroom with electric UFH typically takes one to two days. A wet system for a full room or extension usually takes three to five days, including screed drying time before flooring can go down.
Does underfloor heating work well in Glasgow’s older properties?
Yes, with the right system for the property. Electric UFH suits most tenement and older flats well, while wet systems are better suited to extensions or full renovations where the floor is already being replaced.
Can underfloor heating replace my radiators completely?
In a new build or full renovation, wet underfloor heating can replace radiators across the whole house. In an existing home, most homeowners add UFH to one or two rooms usually the bathroom or kitchen while keeping radiators elsewhere.
Do I need a Gas Safe registered engineer for underfloor heating?
You need a Gas Safe registered engineer for any part of the work connecting to a gas boiler. Electric underfloor heating itself is an electrical installation, but where it ties into your central heating controls, it’s best handled by the same team managing your heating system.
What flooring works best with underfloor heating?
Tile and stone conduct heat well and are the most common choice. Engineered wood and laminate also work but must be rated for use with underfloor heating check with your supplier before fitting.
Ready to Get Started?
Precision Renovators is a Gas Safe certified plumbing and heating company based in Glasgow, covering everything from a single bathroom retrofit to full heating system upgrades. Whether you’re weighing up wet vs electric underfloor heating for one room or planning it into a bigger renovation, we’ll give you a free, written quote based on your actual property not a generic estimate.
Call or WhatsApp: 07495 816227
