All 38 plumbing companies registered in Harrow, Sep 2025 to Aug 2026.
Every plumbing company that registered a Harrow address between September 2025 and August 2026, newest first, straight from the Companies House register. Every company number links to its own record there.
| Company | Postcode area | Registered |
|---|---|---|
| ACH PLUMBING AND HEATING LIMITED | HA1 | 27 August 2026 |
| BLUE MOUNTAIN PLUMBING AND HEATING LTD | HA2 | 19 August 2026 |
| PRESTIGE CLIMATE LTD | HA1 | 5 August 2026 |
| CONSERVE GREENE LIMITED | HA1 | 21 July 2026 |
| NIBIRU COOLING LIMITED | HA1 | 16 July 2026 |
| IRON OAK CONSTRUCTION LIMITED | HA2 | 14 July 2026 |
| WALKERDPLUMB LTD | HA1 | 7 July 2026 |
| ND PLUMBING LTD | HA1 | 1 July 2026 |
| STONE BUILD LIMITED | HA2 | 1 July 2026 |
| ECO FIT ENERGY LTD | HA1 | 22 June 2026 |
| AAM HEATING AND PLUMBING LTD | HA2 | 9 June 2026 |
| HEATING AND PLUMBING LONDON LTD | HA3 | 1 June 2026 |
| ANDREI AIR FITTINGS LTD | HA1 | 26 May 2026 |
| LUK VENT LIMITED | HA2 | 22 May 2026 |
| D & LK CONSTRUCTION LIMITED | HA2 | 18 May 2026 |
| PLAMEN THE PLUMBER LTD | HA2 | 8 May 2026 |
| 24H ABC PLUMBING & DRAINAGE LIMITED | HA1 | 28 April 2026 |
| UTS HEATING LTD | HA2 | 17 April 2026 |
| PAP 1 TRANS LTD | HA3 | 14 April 2026 |
| DEVONALD PLUMBING LIMITED | HA2 | 11 March 2026 |
| CERACONSTRUCT LTD | HA1 | 12 February 2026 |
| BOBBY AND SONS HEATING AND PLUMBING LTD | HA2 | 6 February 2026 |
| HS PLUMBING SERVICES LTD | HA3 | 3 February 2026 |
| ZAI PLUMB TECH LTD Limited by guarantee | HA3 | 2 February 2026 |
| WEST ENGLAND CONSTRUCTION LIMITED | HA3 | 30 January 2026 |
| TAILOR MADE PLUMBING LIMITED | HA2 | 29 December 2025 |
| ELECTROPLUMECH MEP SERVICES LTD | HA1 | 1 December 2025 |
| SEC ROOFINGS LTD | HA1 | 25 November 2025 |
| S P HEATING LTD | HA3 | 24 November 2025 |
| TOPMAN CONTRACTORS LTD | HA2 | 23 November 2025 |
| APEX LIGHT SERVICES LIMITED | HA3 | 20 November 2025 |
| DSG PLUMBING LIMITED | HA2 | 17 November 2025 |
| T&D PLUMBING & HEATING SERVICES LTD | HA3 | 3 November 2025 |
| RMC PLUMBING SERVICES LIMITED | HA1 | 1 November 2025 |
| BLUECIRCUIT TECH LTD | HA2 | 27 October 2025 |
| GILCHRIST ENGINEERING HOLDINGS LIMITED was GILCHRIST ENGINEERING LIMITED until 7 July 2026 | HA1 | 15 October 2025 |
| CHELSEA HANDYMAN LTD | HA3 | 15 September 2025 |
| H CHAHAL CONSTRUCTION LTD | HA2 | 8 September 2025 |
Company names, numbers and incorporation dates come from the Companies House register and are free to reuse under the Open Government Licence. What the register does not carry is a way to contact any of them. That is the part we sell, below.
November was the busiest month.
Monthly registrations of plumbing companies in Harrow. The busiest month was November on 7. The quietest was January on 1.
New plumbing companies in Harrow, by month
Sep 2025 – Aug 2026 · 38 in total
Small numbers move about. At this volume a quiet month and a busy month in the same year is normal, so read the twelve-month total before you read any single month.
How far back it goes.
Plumbing companies registered to a Harrow address by year of incorporation, and this year measured against the same run of months last year.
New plumbing companies in Harrow, by year
2017 to 2026 · 2026 counts January to August only
Older years undercount. The register only holds companies that still exist. Anything formed in an earlier year and since dissolved has dropped off it, so the further back the chart goes the more it undercounts. That alone makes every trade look like it is growing. Some of the rise here is real growth and some of it is simply that recent companies have had less time to close. The long view works through it in full.
How Harrow compares.
New plumbing companies over the last twelve months in the towns closest to Harrow on volume. Harrow is number 22 of the 33 towns with enough plumbing registrations for a page.
What else started in Harrow.
New companies registered to a Harrow address over the last twelve months, by trade. The colour on each card is the trade family. The Harrow page carries all 39 of them.
- Building and trades
- Digital and professional
- Retail and food
- Transport and logistics
- People and care
- Property
Every trade in Harrow, on one page · The whole building and trades family
20 plumbing_hvac companies from August 2026 you can actually contact. £15.
511 plumbing_hvac companies registered across the UK in Aug 2026. 20 of them have an email address we checked as deliverable and tied to that company: name, number, registered address, directors, website and the contact. The rest are left out, not padded in, and you are not charged for them.
National per trade, Harrow and everywhere else; filter by town in the file. Closed months only, so the count you see is the count you get. £0.30 a record, £15 minimum.
Exact record count, the price and a sample row by email. Asking is not ordering.
Not ready to buy? The names alone, without contacts, are on the public register and we give them away: every new plumbing_hvac company in the UK in the last 30 days (534 to 25 September 2026), as a CSV. Get the free file.