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SIGMA PROJECTS LTD: plumbing, heating and air-conditioning company in Caernarfon
SIGMA PROJECTS LTD is an active limited company (no. 15924759), incorporated in 2024, registered for plumbing, heating and air-conditioning installation (SIC 43220), with its registered office in LL55 (Caernarfon), and 12 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
12 similar companies within 10 km. Caernarfon
What homes around LL55 need
In LL55 last summer (2026) there were ≈3 nights that stayed above 18 °C — 8 times the 1991–2020 average of 0.4 (ERA5 reanalysis, grid ≈30 km, lower than street temperatures in cities).
8% of sampled postcodes in LL55 sit in a conservation area (on-record, 739 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 |
|---|---|---|---|
| ECO GREEN HEATING LTD | 07141127 | LL55 | ≈1.1 km |
| JTP MECHANICAL LTD | 12821868 | LL61 | ≈3.9 km |
| TANAU PLW FIRES LIMITED | 16015103 | LL55 | ≈5.9 km |
| GWRES ERYRI CYF | 07853496 | LL54 | ≈7.7 km |
| ERYRI RENEWABLES LTD | 13993242 | LL57 | ≈8.4 km |
| J ALWYN ROBERTS PLUMBING & HEATING CYF | 07119495 | LL57 | ≈8.9 km |
| ECOHEAT RENEWABLE ENERGY LTD | 15966820 | LL57 | ≈8.9 km |
| HVAC CLIMATE SOLUTIONS LTD | 15045762 | LL60 | ≈8.9 km |
| ASTBURY HEATING LIMITED | 05521048 | LL57 | ≈9.0 km |
| VAYNOL PLUMBING & HEATING LTD | 08777672 | LL55 | ≈9.2 km |
Company record
| Field | Value |
|---|---|
| Company number | 15924759 |
| Name | SIGMA PROJECTS LTD |
| Status | Active |
| Incorporated | 29 Aug 2024 |
| SIC | 43220 · plumbing, heat and air-conditioning installation; 43210 · electrical installation; 41201; 41202 |
| Registered office postcode | LL55 1BA |
| Outcode | LL55 |
| 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 15924759 |
Companies House record: SIGMA PROJECTS LTD, company 15924759, 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.