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I S M HEATING SERVICES LIMITED: plumbing, heating and air-conditioning company in Conwy
I S M HEATING SERVICES LIMITED is an active limited company (no. 10453796), incorporated in 2016, registered for plumbing, heating and air-conditioning installation (SIC 43220), with its registered office in LL22 (Conwy), and 39 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
39 similar companies within 10 km. Conwy
What homes around LL22 need
In LL22 last summer (2026) there were ≈4 nights that stayed above 18 °C — 8 times the 1991–2020 average of 0.5 (ERA5 reanalysis, grid ≈30 km, lower than street temperatures in cities).
8% of sampled postcodes in LL22 sit in a conservation area (on-record, 652 live postcodes).
In Wales 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 |
|---|---|---|---|
| MURRAYS HEATING LIMITED | 12902200 | LL22 | ≈3.0 km |
| GELEGAS CYF | 06879429 | LL22 | ≈3.3 km |
| JRS MECHANICAL SERVICES LIMITED | 02719196 | LL22 | ≈3.7 km |
| JRS SPECIAL PROJECTS LIMITED | 04220450 | LL22 | ≈3.7 km |
| JRS HOLDINGS LIMITED | 09857900 | LL22 | ≈3.7 km |
| RON'S PLUMBING & HEATING LIMITED | 05158502 | LL29 | ≈4.0 km |
| OCEAN BLUE ONE LTD | 08479625 | LL22 | ≈4.1 km |
| SMITH PLUMBING CO NORTH WEST LTD | 15864428 | LL22 | ≈4.4 km |
| LH PLUMBING & HEATING LTD | 16520462 | LL29 | ≈4.6 km |
| GRANTS HEATING LIMITED | 13104393 | LL29 | ≈5.9 km |
Company record
| Field | Value |
|---|---|
| Company number | 10453796 |
| Name | I S M HEATING SERVICES LIMITED |
| Status | Active |
| Incorporated | 31 Oct 2016 |
| SIC | 43220 · plumbing, heat and air-conditioning installation |
| Registered office postcode | LL22 8HZ |
| Outcode | LL22 |
| Nation | Wales |
| 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 10453796 |
Companies House record: I S M HEATING SERVICES LIMITED, company 10453796, 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.