Home / Installers / Derby
STH MECHANICAL LTD: plumbing, heating and air-conditioning company in Derby
STH MECHANICAL LTD is an active limited company (no. 11781822), incorporated in 2019, registered for plumbing, heating and air-conditioning installation (SIC 43220), with its registered office in DE72 (Derby), and 313 similar companies have a registered office within 10 km. If you need an MCS-certified air-to-air installer, MCS lists 0 installers certified for air-to-air heat pumps yet (checked 25 Sep 2026), so no company here can offer the £2,500 grant route today.
Active
Within 10 km
313 similar companies within 10 km. Derby
What homes around DE72 need
In DE72 last summer (2026) there were ≈5 nights that stayed above 18 °C — 7 times the 1991–2020 average of 0.8 (ERA5 reanalysis, grid ≈30 km, lower than street temperatures in cities).
11% of sampled postcodes in DE72 sit in a conservation area (on-record, 452 live postcodes).
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).
Hot nights: ERA5-ARCO, June–August, minimum at or above 18 °C, 2026 against the 1991–2020 mean, retrieved 25 Sep 2026. Conservation-area share: sampled postcode points, snapshot 25 Sep 2026. Noise limit from the decision contract, checked 25 Sep 2026.
Nearest similar companies
| Company | Number | District | Distance |
|---|---|---|---|
| C WILTON LTD | 16239041 | DE21 | ≈1.6 km |
| SS GROUP HEATING PLUMBING LTD | 12314937 | DE21 | ≈1.7 km |
| J&L HEATING LTD | 12098834 | DE72 | ≈1.8 km |
| AC AZURE MANAGEMENT LTD | 15148663 | DE21 | ≈2.0 km |
| CLARKE'S PLUMBING & HEATING LTD | 11223951 | DE21 | ≈2.0 km |
| PCP 27 LIMITED | 06287074 | DE21 | ≈2.1 km |
| JONATHAN PITTS LIMITED | 07164527 | DE7 | ≈2.8 km |
| HOLDEN HEATING LTD | 07724152 | DE7 | ≈3.0 km |
| BITS AND BOGS LTD | 11840428 | DE7 | ≈3.0 km |
| LENNIES PLUMBING & HEATING SERVICES LIMITED | 17066684 | DE21 | ≈3.4 km |
Company record
| Field | Value |
|---|---|
| Company number | 11781822 |
| Name | STH MECHANICAL LTD |
| Status | Active |
| Incorporated | 22 Jan 2019 |
| SIC | 43220 · plumbing, heat and air-conditioning installation |
| Registered office postcode | DE72 3TN |
| Outcode | DE72 |
| Nation | England |
| Air-to-air signal | not yet observed, checked 25 Sep 2026 |
| F-Gas | not yet observed, checked 25 Sep 2026 |
| MCS air-to-air | not yet observed, checked 25 Sep 2026 |
| Retrieved | 25 Sep 2026 |
| Dataset | https://download.companieshouse.gov.uk/BasicCompanyDataAsOneFile-2026-09-01.zip |
| Companies House page | Company 11781822 |
Companies House record: STH MECHANICAL LTD, company 11781822, status Active, 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. Snapshot 1 Sep 2026, retrieved 25 Sep 2026. The 10 km count is equirectangular to 0.1 km. MCS air-to-air confirmed in this catalogue: 0, checked 25 Sep 2026.
Better than a reviews catalogue: the Companies House record, the district hot-night count and the MCS air-to-air observation are on one page.