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HERTFORDSHIRE AIR CONDITIONING LIMITED: plumbing, heating and air-conditioning company in Harpenden
HERTFORDSHIRE AIR CONDITIONING LIMITED is an active limited company (no. 09636085), incorporated in 2015, registered for plumbing, heating and air-conditioning installation (SIC 43220), with its registered office in AL5 (Harpenden), and 332 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
332 similar companies within 10 km. Harpenden
What homes around AL5 need
In AL5 last summer (2026) there were ≈11 nights that stayed above 18 °C — 7 times the 1991–2020 average of 1.5 (ERA5 reanalysis, grid ≈30 km, lower than street temperatures in cities).
30% of sampled postcodes in AL5 sit in a conservation area (on-record, 1,057 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 |
|---|---|---|---|
| RISELEY PLUMBING SERVICES LIMITED | 04670079 | AL5 | under 0.1 km |
| TEMA CONSTRUCTION LTD | 12103738 | AL5 | ≈0.5 km |
| SARIKAYA PLUMBING AND HEATING LTD | 13320440 | AL5 | ≈0.5 km |
| DCS SMART CONTROL SYSTEMS LIMITED | 13332928 | AL5 | ≈0.5 km |
| EAST & GRAY LTD | 09379350 | AL5 | ≈0.6 km |
| WALKER MECHANICAL SERVICES LTD | 15541331 | AL5 | ≈0.8 km |
| SHIRE ELECTRICAL SERVICES LIMITED | 09741510 | AL5 | ≈0.8 km |
| AC-SQD LTD | 10655249 | AL5 | ≈0.9 km |
| HONEY BEAR ENERGY LIMITED | 17353353 | AL5 | ≈0.9 km |
| ACTIVE 24/7 PLUMBING LTD | 17022799 | AL5 | ≈0.9 km |
Company record
| Field | Value |
|---|---|
| Company number | 09636085 |
| Name | HERTFORDSHIRE AIR CONDITIONING LIMITED |
| Status | Active |
| Incorporated | 12 Jun 2015 |
| SIC | 43220 · plumbing, heat and air-conditioning installation |
| Registered office postcode | AL5 2JD |
| Outcode | AL5 |
| 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 09636085 |
Companies House record: HERTFORDSHIRE AIR CONDITIONING LIMITED, company 09636085, 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.