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ANDREW SMYTH & SON LIMITED: plumbing, heating and air-conditioning company in Hertfordshire
ANDREW SMYTH & SON LIMITED is an active limited company (no. 06206437), incorporated in 2007, registered for plumbing, heating and air-conditioning installation (SIC 43220), with its registered office in EN11 (Hertfordshire), and 497 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
497 similar companies within 10 km. Hertfordshire
What homes around EN11 need
In EN11 last summer (2026) there were ≈11 nights that stayed above 18 °C — 7 times the 1991–2020 average of 1.6 (ERA5 reanalysis, grid ≈30 km, lower than street temperatures in cities).
12% of sampled postcodes in EN11 sit in a conservation area (on-record, 653 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 |
|---|---|---|---|
| ALSA BUILDING SERVICES LTD | 13185334 | EN11 | ≈0.3 km |
| SJFGAS LTD | 12012960 | EN11 | ≈0.4 km |
| UTILITY FITTERS LTD | 14515858 | EN11 | ≈0.4 km |
| DELAWARE HEATING LTD | 17397746 | EN11 | ≈0.5 km |
| PRESTIGE PLUMBING & HEATING LTD | 17393601 | EN11 | ≈0.5 km |
| HOME CHOICE FIREPLACES DIRECT LTD | 07182567 | EN11 | ≈0.6 km |
| ALL GAS SERVICES (LONDON) LIMITED | 06176474 | EN11 | ≈0.6 km |
| NAZEING HEATING LIMITED | 01341494 | EN11 | ≈0.6 km |
| FIRST NATIONAL ASSOCIATES LIMITED | 04116293 | EN11 | ≈0.6 km |
| JOHN PEARMAIN LIMITED | 04450704 | EN11 | ≈0.6 km |
Company record
| Field | Value |
|---|---|
| Company number | 06206437 |
| Name | ANDREW SMYTH & SON LIMITED |
| Status | Active |
| Incorporated | 10 Apr 2007 |
| SIC | 43220 · plumbing, heat and air-conditioning installation |
| Registered office postcode | EN11 9ED |
| Outcode | EN11 |
| 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 06206437 |
Companies House record: ANDREW SMYTH & SON LIMITED, company 06206437, 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.