Research Desk · Original analysis · Updated quarterly
The same boiler, fitted by an equally qualified engineer, can cost £1,000 more in London than in the North East. For purchases most households only make once or twice, where you live quietly moves the quote. This report puts regional numbers on boilers, loft insulation and stairlifts, and explains why one of the three barely varies by postcode at all.
Why the same job costs different money
The variation has little to do with anyone being greedy in the south. Installed purchases are mostly labour, and labour prices differ sharply by region. A heating engineer’s day rate runs £400–£500 in London against £200–£300 in the North East, and London trades carry overheads that barely exist elsewhere: parking at £20–£50 a day in inner zones, congestion charging and higher insurance all end up in the quote. The equipment costs much the same everywhere, so nearly all of the regional difference comes from the fitting.
New boiler: the postcode premium is real
Indicative installed price for a straightforward like-for-like combi replacement with a mid-range boiler. The UK average sits around £2,400, with a median quoted price of £2,300 from thousands of 2026 quotes.
| Region | Indicative installed price | vs UK average |
|---|---|---|
| London | £2,900 – £3,700 | +25% to +37% |
| South East | £2,600 – £3,100 | +10% to +15% |
| South West | £2,400 – £2,800 | around average |
| East of England | £2,400 – £2,800 | around average |
| Midlands | £2,300 – £2,700 | around average |
| North West | £2,100 – £2,500 | −5% to −10% |
| Yorkshire & North East | £2,000 – £2,400 | −10% to −15% |
| Scotland | £2,000 – £2,500 | −10% to −15% |
| Wales | £2,000 – £2,400 | −10% to −15% |
| Northern Ireland | £2,000 – £2,400 | −10% to −15% |
Indicative ranges built from published 2026 cost guides and quote data (see sources) with regional labour-rate adjustments. Like-for-like combi swap; conversions, relocations and system boilers cost more everywhere.
Loft insulation: the biggest percentage swing
A standard mineral-wool top-up is mostly a day of labour plus cheap material, which gives it the widest regional swing of the three purchases. A 3-bed semi averages around £930 nationally, inside a £500–£1,200 typical range.
| Region band | 3-bed semi, 270mm mineral wool top-up |
|---|---|
| London & South East | £1,000 – £1,400 |
| Midlands, East, South West | £700 – £1,100 |
| North, Scotland, Wales, NI | £500 – £900 |
Material costs are similar everywhere (£10–£12/m² for quilt); the swing is labour at £200–£300 a day. Spray foam and rigid board cost £30–£50/m² and change the sums entirely. Spray foam can also complicate mortgages, a warning we cover in our insulation guides.
One thing to check before paying anything: loft insulation is the big purchase most likely to be free. The Great British Insulation Scheme and ECO4 fund loft insulation for qualifying households in every region, based on income, certain benefits or a low EPC rating. Check eligibility before you check quotes.
Stairlifts: the purchase where your postcode barely matters
Stairlift pricing turned out not to follow the boiler pattern, which surprised us. A straight stairlift typically costs £2,000–£3,500 installed (average around £2,300); a curved lift £3,500–£8,000 (average around £5,200); reconditioned units start from around £1,300.
Regional variation inside those ranges is modest, usually within 5–10%. The national manufacturers and dealers price nationally, and installation takes a few hours rather than a day of local labour. The factor that moves a stairlift quote by thousands of pounds is the shape of the staircase itself. A curve, a landing or a narrow flight adds £2,000–£3,000 to the price in Penzance and in Perth alike. If a salesperson puts a high quote down to your area, be sceptical; the staircase explanation is usually the true one.
| Stairlift type | Typical installed price, UK-wide | What moves it |
|---|---|---|
| Straight, new | £2,000 – £3,500 | Rail length, seat spec, warranty |
| Curved, new | £3,500 – £8,000 | Bends and landings, each adding £1,000s |
| Reconditioned straight | from £1,300 | Age, warranty length, rail condition |
The pattern across all three
The more of a purchase that is local labour, the more your postcode costs you. Loft insulation swings roughly 60% between the cheapest and dearest regions, boilers around 40% and stairlifts under 10%. For labour-heavy jobs in the south it is always worth getting three quotes, since the spread between quotes in expensive regions is as wide as the regional premium itself. In cheaper regions the third quote matters less, though the first one still shouldn’t be signed on the doorstep.
Methodology, and what happens next
This launch edition is built from published 2026 UK cost guides, trade quote data and regional labour rates (sources below), cross-checked across multiple providers. From this quarter we are adding our own data. Look Into arranges real quotes for boilers, insulation and stairlifts across every UK region, and we will fold anonymised, aggregated quote figures into each quarterly update, the same way our UK Cost of Care Index is built. Where our observed quotes disagree with the published guides, we’ll say so.
Getting quotes? We arrange free, no-obligation quotes from vetted installers: boilers & energy · home improvement & insulation · stairlifts & mobility. We’re paid by providers when an installation goes ahead, never for featuring them. See how we make money.
Sources
Boiler costs: Checkatrade, Heatable (median of around 2,000 quotes, Jan–May 2026), MyJobQuote, GreenMatch London analysis and regional labour-rate reporting, 2026. Loft insulation: Checkatrade, GreenMatch, MyBuilder and HomeOwners Alliance cost guides, 2026. Stairlifts: published 2026 price guides from UK stairlift providers and our own mobility desk research. All figures are indicative installed prices including VAT where applicable; individual quotes will vary with property and spec.