24/7 EMERGENCY
Burst pipe? Boiler down? No hot water? Engineers on call right now —
Mon–Fri 8am–6pm · Sat 9am–5pm ·
Emergency line open 24/7
Gas Safe Reg: 123456
Trustpilot 4.9★
24/7 EMERGENCY
Burst pipe? Boiler down? No hot water? Engineers on call right now —
Emergency line open 24/7
Gas Safe Reg: 123456
Trustpilot 4.9★
We install, repair and service wet and electric underfloor heating across Islington — from full retrofit systems in Georgian terraces to screed-based installs in Clerkenwell loft conversions and new-build flats. Fixed price, clean installation, 12-month workmanship guarantee.
N1
N4
N5
N7
N19
🔒 No obligation. Fixed price confirmed before any work starts.
Islington’s mix of period terraces, converted lofts and new-build flats each call for a different approach to fitting underfloor heating.
Original floor heights and joist spacing in these conservation-area terraces mean low-profile retrofit systems are usually the practical option for kitchen and bathroom extensions, without disturbing the rest of the property.
Concrete and screed subfloors in Clerkenwell's converted industrial buildings are well suited to full wet underfloor heating systems, often replacing radiators entirely for a cleaner, open-plan finish.
In shared houses and converted flats, electric systems are typically fitted to individual bathrooms or kitchens during a refurbishment, controlled independently from the main heating.
Newer developments are frequently built with underfloor heating as standard, served by compact combi boilers or communal heat networks. We handle manifold faults, zone control setup and snagging repairs.
Islington’s housing stock is dominated by Georgian and Victorian terraces in Canonbury, Barnsbury and Highbury, many within conservation areas, where original pipework often runs through unheated basements, cellars and loft spaces with no thermal protection. Clerkenwell’s converted warehouse lofts add a further layer of risk, with pipework frequently left exposed as part of the industrial aesthetic. These are the areas where we see the most freeze damage and the highest heat loss across the borough each winter.
The right system depends on your floor build-up, the room, and whether you’re retrofitting or extending. Here’s how the two options compare.
Best for larger areas — full-floor installs in Clerkenwell loft conversions, extensions and new-build flats with room to raise floor height or run a low-profile retrofit board. Lower running costs once installed; connects to your boiler or heat pump. Higher installation cost and more disruption, especially retrofitting into an existing screed floor.
Best for smaller rooms — bathrooms, kitchens and hallways in Georgian terraces and period flats where floor height is limited. Cheaper and faster to install, including as a retrofit under tiles. Higher running cost per square metre, so usually run on a timer for single rooms rather than a whole property.
From first survey to a fully commissioned system, or a same-day fix if something’s already gone wrong.
We assess your floor build-up, room use and existing heat source to recommend wet or electric, and confirm a fixed price before any work begins.
Wet systems are laid and connected to a manifold; electric mats or cables are fitted beneath the final floor covering. All work is tested before the floor is finished.
Thermostats and zone valves or manifold actuators are wired and configured so each room or zone heats independently and efficiently.
The system is pressure-tested (wet) or insulation-tested (electric), balanced, and demonstrated to you before your 12-month guarantee is issued in writing.
Most underfloor heating faults come down to a handful of causes — we diagnose before recommending any work.
Usually a trapped air pocket, an unbalanced manifold, or a failed loop — diagnosed without lifting the floor in most cases.
Often a wiring or thermostat fault on electric systems, or a manifold actuator or pump issue on wet systems.
Common in newer Islington flats with zoned heating — actuators and valves are repaired or replaced without disturbing the floor.
A yearly check of manifold pressure, thermostat calibration and system balancing keeps efficiency up and catches faults early.
Cost depends on system type, floor area, and whether it’s a new install or a retrofit into an existing floor. All prices confirmed before work begins.
Bathroom or kitchen retrofit, mat + thermostat
Low-profile system, one room, connected to existing boiler
Full manifold, pipework and screed-ready install
Diagnosis and replacement of faulty component
Cold spots, no heat, or thermostat fault investigation
Manifold check, balancing, thermostat calibration
Fixed price policy: all prices confirmed before work begins — no call-out charge, no hidden extras, no inner-London zone surcharge. The price you approve is the price on the invoice.
Fast arrival for power flushing across N1, N4, N5, N7, N19 and EC1 — without the delays of London-wide dispatch.
From low-profile retrofits in Canonbury terraces to full wet systems in Clerkenwell loft conversions — we've fitted underfloor heating across every property type in the borough.
We're not tied to one system type — we recommend and install whichever suits your floor build-up and budget.
Same pricing whether you're in N1 Angel or N19 Archway.
Over 210 underfloor heating installs, repairs and services completed across the borough — 4.9★ from local customers.
All underfloor heating work in Islington carries our 12-month workmanship guarantee, issued in writing before we leave.
Read all reviews on Trustpilot →
“Converted our Clerkenwell warehouse loft and wanted the radiators gone entirely. The team fitted a full wet underfloor heating system into the screed before the floor went down — the whole space heats evenly and it’s completely out of sight.”
“Bathroom refurb in our Canonbury terrace, floor height was tight so a wet system wasn’t an option. They fitted an electric mat under the new tiles and it’s been reliable ever since — warm floor first thing in the morning.”
“New-build flat near Highbury had cold spots in the living room since we moved in. Turned out to be an unbalanced manifold — sorted within the hour, no floor disturbance, and they talked us through the zone controls properly this time.”
Yes. We cover the entire Islington borough including Angel, Islington, Highbury, Holloway, Canonbury, Barnsbury, Finsbury Park and Archway — postcodes N1, N4, N5, N7, N19 and EC1. Our engineers are based locally across North London.
Yes. Where floor height is limited, we typically fit a low-profile electric or slim wet retrofit system for a single room, such as a kitchen or bathroom, without disturbing the rest of the property.
Yes — concrete and screed subfloors common in converted warehouse buildings are well suited to a full wet underfloor heating system, and it's a popular way to remove radiators for a cleaner open-plan finish.
Most commonly a trapped air pocket, an unbalanced manifold, or a failed loop. We diagnose the cause first — often without needing to lift the floor — before recommending any work.
Yes. Many newer Islington developments are built with underfloor heating and zoned manifolds as standard. We handle manifold faults, zone valve repairs, and control setup for these systems.
Same-day callouts, fixed price agreed before we start. Call now or book online.
We also cover these neighbouring boroughs — same fixed prices, same engineers.