For most Edinburgh and Lothians homes, a new combi boiler installed starts from around £2,200 and typically runs up to £3,500. System boilers and regular (heat-only) boilers usually start from around £2,800 and run to £4,200 once a standard vented hot water cylinder, controls, and any pipework changes are factored in.
Where the job includes a mains-pressure unvented cylinder — which needs its own expansion vessel, discharge pipework, and a G3-qualified engineer — that range is £3,500 to £5,500. Replacing an old back boiler with a modern system typically runs £2,800 to £4,000.
These are typical ranges for the Edinburgh area, not a quote. They sit in line with what boiler installation costs across Scotland — most Scottish combi replacements land somewhere between roughly £1,900 and £3,200, with Edinburgh sitting toward the upper half of that because of the housing stock. Where your job falls depends on your property, and the only number that means anything is the fixed written price we give you after the survey.
The price depends on a few practical things: the brand and output size, whether the new boiler is going in the same position as the old one, whether the existing gas supply and flue can be reused, and whether you want extras like a smart thermostat, magnetic filter, or power flush.
What's included in a Macara Heating quote — a fixed price for the boiler, the installation, all fittings, a magnetic system filter, controls, benchmarking, Gas Safe notification, and your manufacturer warranty registration. No surprise extras after we start.
We quote Worcester Bosch, Vaillant, Ideal, Baxi, and Viessmann depending on what fits your home and budget. For larger properties or LPG installations the price will be higher — we'll walk you through the options at the survey.