Home / Installers / Dunstable
FENRISULFUR LIMITED: plumbing, heating and air-conditioning company in Dunstable
FENRISULFUR LIMITED is an active limited company (no. 05176056), incorporated in 2004, registered for plumbing, heating and air-conditioning installation (SIC 43220), with its registered office in LU5 (Dunstable), and 266 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
266 similar companies within 10 km. Dunstable
What homes around LU5 need
In LU5 last summer (2026) there were ≈8 nights that stayed above 18 °C — 6 times the 1991–2020 average of 1.4 (ERA5 reanalysis, grid ≈30 km, lower than street temperatures in cities).
5% of sampled postcodes in LU5 sit in a conservation area (on-record, 830 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 |
|---|---|---|---|
| LEGACY PLUMBING AND HEATING LTD | 15910666 | MK45 | ≈1.4 km |
| APEX AIR & HEAT LTD | 17300270 | MK45 | ≈1.7 km |
| P WILSON PLUMBING AND HEATING LTD | 11553473 | LU5 | ≈3.4 km |
| STAGG PROPERTY SERVICES LIMITED | 04258538 | MK45 | ≈3.4 km |
| CUSTOM RENEWABLE SOLUTIONS LTD | 15325508 | MK45 | ≈3.4 km |
| ADVANCED PLUMBING AND HEATING MAINTENANCE SERVICES LTD | 15642400 | MK45 | ≈3.4 km |
| HERITAGE HEATING GROUP LTD | 15807560 | MK45 | ≈3.4 km |
| BRADBURY PLUMBERS LTD | 08664073 | MK17 | ≈3.5 km |
| SPS COOLING SOLUTIONS LTD | 15043183 | MK45 | ≈3.5 km |
| ROSS JAMES KILPATRICK LIMITED | 09782987 | LU5 | ≈3.6 km |
Company record
| Field | Value |
|---|---|
| Company number | 05176056 |
| Name | FENRISULFUR LIMITED |
| Status | Active |
| Incorporated | 9 Jul 2004 |
| SIC | 43220 · plumbing, heat and air-conditioning installation; 62020; 68209; 74100 |
| Registered office postcode | LU5 6PA |
| Outcode | LU5 |
| 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 05176056 |
Companies House record: FENRISULFUR LIMITED, company 05176056, 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.