Seaham: plumbing, heating and air-conditioning companies
Seaham has 16 plumbing, heating and air-conditioning companies (SIC 43220) and 22 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 SR7, summer 2026 had ≈2 nights above 18 °C there (5 times the 1991–2020 average of 0.4).
SIC 43220
Open a company
A & G PLUMBING (TYNE & WEAR) LIMITED, incorporated 2001, status Active.
Plumbing, heating and air-conditioning companies
| Company | Incorporated | Status | District |
|---|---|---|---|
| ANKERS SERVICES LTD | 2023 | Active | SR7 |
| DW PLUMBING & HEATING (NE) LTD | 2024 | Active | SR7 |
| GSI:NE LTD | 2009 | Active | SR7 |
| A & G PLUMBING (TYNE & WEAR) LIMITED | 2001 | Active | SR7 |
| HOUSEWARMERS CONTRACTS LIMITED | 2014 | Active | SR7 |
| COASTAL FACILITIES MANAGEMENT LTD | 2024 | Active | SR7 |
| P P HEATING LTD | 2024 | Active | SR7 |
| ITC PLUMBING AND HEATING SERVICES LIMITED | 2003 | Active | SR7 |
| A G M PLUMBING AND HEATING SERVICES LTD | 2017 | Active | SR7 |
| MD IMPROVEMENTS LIMITED | 2022 | Active | SR7 |
| VANTA SERVICES LTD | 2025 | Active | SR7 |
| METCALFE'S (NE) LTD | 2023 | Active | SR7 |
| CITY GAS PLUMBING AND HEATING LIMITED | 2019 | Active | SR7 |
| GAS BOILER INSTALLATIONS NORTH EAST LIMITED | 2020 | Active | SR7 |
| THE UNIQUE BATHROOM COMPANY (NE) LIMITED | 2018 | Liquidation | SR7 |
| RICHARD MCLANE GAS SERVICES LIMITED | 1999 | Liquidation | SR7 |
Electrical and other installation companies
| Company | SIC | Incorporated | Status | District |
|---|---|---|---|---|
| CDY ELECTRICAL CONTRACTORS LTD | 43210 · electrical installation | 2026 | Active | SR7 |
| DST SHUTTERS LIMITED | 43290 · other construction installation | 2013 | Active | SR7 |
| ZONE FIRE & SECURITY LTD | 43210 · electrical installation; 80200 | 2010 | Active | SR7 |
| INTELEC ELECTRICAL SOLUTIONS LTD | 43210 · electrical installation | 2024 | Active | SR7 |
| DM ELECTRICAL CONTRACTOR'S LTD | 43210 · electrical installation | 2020 | Active | SR7 |
| PARKER CLARKE GROUP LTD | 43210 · electrical installation; 33140; 68209 | 2026 | Active | SR7 |
| HARBOUR ELECTRICAL SERVICES LIMITED | 43210 · electrical installation; 33140 | 2023 | Active | SR7 |
| W W BRAZELL LIMITED | 43210 · electrical installation | 1936 | Active | SR7 |
| NALA ENGINEERS LIMITED | 43210 · electrical installation | 1992 | Active | SR7 |
| ITC ELECTRICAL SERVICES LIMITED | 43210 · electrical installation | 2019 | Active | SR7 |
| J.T.C. REINFORCEMENTS (NORTH EAST) LIMITED | 43290 · other construction installation | 2021 | Active | SR7 |
| JT WIND/ROPE SERVICES LTD | 43290 · other construction installation | 2026 | Active | SR7 |
| CMS (NORTH EAST) LTD | 43290 · other construction installation | 2020 | Active | SR7 |
| COMPOUND JOINERY LTD | 43210 · electrical installation; 43290 · other construction installation; 43310; 43910 | 2020 | Active | SR7 |
| TECHNALIGHT LTD | 43210 · electrical installation; 43290 · other construction installation; 43390; 47599 | 2026 | Active | SR7 |
| E&N ELECTRICAL SERVICES LTD | 43210 · electrical installation | 2025 | Active | SR7 |
| GREEN SUNRISE SOLUTIONS LIMITED | 43290 · other construction installation | 2025 | Active | SR7 |
| RMH LAMPS, LIGHTING & ELECTRICAL LIMITED | 43210 · electrical installation | 2006 | Active | SR7 |
| WRACCESS LIMITED | 43210 · electrical installation | 2026 | Active | SR7 |
| H.E.S HALLS ELECTRICAL SERVICES LTD | 43210 · electrical installation | 2004 | Active | SR7 |
| MARK MAW ELECTRICAL LTD | 43210 · electrical installation | 2026 | Active | SR7 |
| MINWORTH LIMITED | 43290 · other construction installation | 2025 | Active - Proposal to Strike off | SR7 |
Heat and planning around Seaham
In Seaham last summer (2026) there were ≈2 nights that stayed above 18 °C — 5 times the 1991–2020 average of 0.4 (ERA5 reanalysis, grid ≈30 km, lower than street temperatures in cities). The figure is the household-weighted mean of 1 postcode districts where these offices are registered.
8% of sampled postcodes in Seaham sit in a conservation area (871 live postcodes across 1 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.