Ayrshire: plumbing, heating and air-conditioning companies
Ayrshire has 5 plumbing, heating and air-conditioning companies (SIC 43220) and 4 electrical and other installation companies registered here (Companies House, 1 Sep 2026); 0 are MCS-certified for air-to-air yet. If the office is in KA12, summer 2026 had ≈0 nights above 18 °C there (the 1991–2020 average is 0.0).
SIC 43220
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CUTTING EDGE IMPROVEMENTS LIMITED, incorporated 2003, status Active.
Plumbing, heating and air-conditioning companies
| Company | Incorporated | Status | District |
|---|---|---|---|
| CUTTING EDGE IMPROVEMENTS LIMITED | 2003 | Active | KA12 |
| H.K.B. SYSTEMS LIMITED | 1985 | Active | KA1 |
| JOHN MCAULAY (FAIRLIE) LIMITED | 1975 | Active | KA29 |
| PHOENIX PLUMBERS LIMITED | 2003 | Active | KA30 |
| PWR BIOHEAT LIMITED | 2013 | Active | KA26 |
Electrical and other installation companies
| Company | SIC | Incorporated | Status | District |
|---|---|---|---|---|
| A. STEVELY ELECTRICAL CONTRACTORS LIMITED | 43210 · electrical installation | 1995 | Active | KA12 |
| LOUDOUNHILL CONTRACTS LIMITED | 43290 · other construction installation; 08120; 42210; 43120 | 1986 | Active | KA16 |
| FORSYTH PROJECT MANAGEMENT LTD | 43290 · other construction installation | 2018 | Active | KA16 |
| ELECTRO INSTALLATIONS (SCOTLAND) LIMITED | 43210 · electrical installation | 1973 | Active | KA19 |
Heat and planning around Ayrshire
In Ayrshire last summer (2026) there were ≈0.8 nights that stayed above 18 °C — 7 times the 1991–2020 average of 0.1 (ERA5 reanalysis, grid ≈30 km, lower than street temperatures in cities). The figure is the household-weighted mean of 7 postcode districts where these offices are registered.
9% of sampled postcodes in Ayrshire sit in a conservation area (2,861 live postcodes across 7 districts).
In Scotland, Class 6H covers heating and hot water, and the noise comparison on this card is 42.0 dB(A) (Step 10, MCS 020).
Companies House snapshot 1 Sep 2026, retrieved 25 Sep 2026. The address shown is the registered office, not a verified operating base. This catalogue is a directory of incorporated businesses, not an exhaustive installer register. Hot nights: ERA5-ARCO, June–August, minimum at or above 18 °C, household-weighted across the districts where these offices are registered, retrieved 25 Sep 2026. Conservation-area share: sampled postcode points, snapshot 25 Sep 2026. Distances are an equirectangular approximation to 0.1 km.
Better than a town directory that only lists names: each plumbing company links to its Companies House record and the local hot-night count.