Southwick: plumbing, heating and air-conditioning companies
Southwick has 4 plumbing, heating and air-conditioning companies (SIC 43220) and 7 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 BN42, summer 2026 had ≈42 nights above 18 °C there (11 times the 1991–2020 average of 3.7).
SIC 43220
Open a company
ACTION PLUMBING LIMITED, incorporated 2009, status Active.
Plumbing, heating and air-conditioning companies
| Company | Incorporated | Status | District |
|---|---|---|---|
| SPECTRUM PLUMBING TEAM LTD. | 2020 | Active | BN42 |
| ACTION PLUMBING LIMITED | 2009 | Active | BN42 |
| H2FLOW PLUMBING & HEATING LTD | 2015 | Active | BN42 |
| GASSPEC SOUTHERN LTD | 2020 | Active | BN42 |
Electrical and other installation companies
| Company | SIC | Incorporated | Status | District |
|---|---|---|---|---|
| C RODGER ELECTRICAL LTD | 43210 · electrical installation | 2011 | Active | BN42 |
| DAK ELECTRICAL LTD | 43210 · electrical installation | 2008 | Active | BN42 |
| LION ELECTRICS LIMITED | 43210 · electrical installation | 2008 | Active | BN42 |
| ROTECH ELECTRICAL LIMITED | 43210 · electrical installation | 2013 | Active | BN42 |
| GRIDSCOUT LTD | 43210 · electrical installation; 35140; 63110; 71122 | 2025 | Active | BN42 |
| F.C.S. GROUP FIRE & SECURITY LIMITED | 43210 · electrical installation | 2020 | Active | BN42 |
| AXIS FITOUT LTD | 43210 · electrical installation | 2020 | Active | BN41 |
Heat and planning around Southwick
In Southwick last summer (2026) there were ≈42 nights that stayed above 18 °C — 11 times the 1991–2020 average of 3.7 (ERA5 reanalysis, grid ≈30 km, lower than street temperatures in cities). The figure is the household-weighted mean of 2 postcode districts where these offices are registered.
6% of sampled postcodes in Southwick sit in a conservation area (614 live postcodes across 2 districts).
In England an air-source heat pump on a house can be permitted development under Class G when the conditions hold, including the MCS 020a noise limit of 37.0 dB(A) (§3.2 Step 8).
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.