Heating Engineers Edinburgh: Radiators and Systems

Edinburgh has some of the oldest housing in Scotland. Rooms with three-metre ceilings, single-glazed sash windows and solid stone walls need far more heat than a modern room of the same floor area, and many original radiators were never sized for them.

Edinburgh at a glance

How homes are heated: 79.0% of Edinburgh households use mains gas central heating and 10.2% electric. 3.3% (about 7,900 homes) have no central heating, and oil heats just 0.2%. Source
Age of homes: Only 57% of Edinburgh dwellings were built after 1945, the joint lowest share in Scotland with Glasgow (72% nationally). Source
Water hardness: Soft. The Drinking Water Quality Regulator says most Scottish tap water is soft. Scottish Water's 2025 results for the Glencorse C zone, which serves central Edinburgh, show a mean conductivity of 85 µS/cm, a low level of dissolved minerals. Source
Energy ratings: 60% of homes in Edinburgh were rated EPC A, B or C (SAP 2012) in 2022 to 2024, so about 40% were D or below. The Scottish average was 55%. Source

Homes without central heating

Scotland's Census 2022 found 3.3% of Edinburgh households, about 7,900 homes, with no central heating. Adding a full system is a bigger job than a boiler swap: new pipework, radiators and a heat source. In a tenement, pipe runs under floorboards need care around old lath and plaster ceilings below.

If there is no gas in the flat, an engineer can compare a gas connection with a heat pump or modern electric heating.

Sizing radiators properly

A heating engineer can calculate each room's heat loss and compare it with each radiator's output. Upgrading to double-panel radiators with fins, or adding a second radiator in a bay window, often fixes a room that never warms up.

Radiators cold at the top just need bleeding, which our guide on how to bleed a radiator covers. Cold at the bottom points to sludge.

Secondary glazing and draughts

In listed buildings and conservation areas, replacing sash windows can be restricted. Secondary glazing and draught-stripping the sashes cut heat loss without changing the outside, and they make any heating system work less hard.

Electric heating in flats

One in ten Edinburgh households has electric central heating, often storage heaters in flats without a gas supply. Modern high-retention storage heaters, a heat pump or an air-to-air unit are the usual upgrade options, and an engineer can compare running costs for your tariff.

Edinburgh homes and what they need

Stone tenement flats

Main rooms facing the street often have the biggest windows and the smallest radiators. Swapping the radiator is usually the first fix.

Interwar and postwar suburban semis

Many still have 1970s pipework and single-panel radiators. A power flush and new radiators can transform how the house heats.

Georgian and Victorian main-door flats and townhouses

Zoning the house by floor, with separate controls, avoids heating unused rooms. Engineers can add zone valves to most systems.

Areas covered

Engineers who cover Edinburgh work across areas including Leith, Morningside, Marchmont, Bruntsfield, Stockbridge, Portobello, Corstorphine, Gorgie, Musselburgh and Dalkeith.

View Edinburgh on Google Maps

Questions people in Edinburgh ask

Do soft water areas need inhibitor?

Yes. Inhibitor protects metal inside the system from corrosion, which happens with soft or hard water alike.

Can pipework go under a listed floor?

Often yes, but lifting original floorboards in a listed building may need consent. Ask the engineer to plan routes that avoid disturbing historic features.

Sources

Also nearby: Heating engineers in Glasgow, Heating engineers in Dundee

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