All 38 plumbing companies registered in Harrow, Nov 2025 to Oct 2026.
Every plumbing company that registered a Harrow address between November 2025 and October 2026, newest first, straight from the Companies House register. Every company number links to its own record there.
| Company | Postcode area | Registered |
|---|---|---|
| HOMECROWN ECO DYNAMICS LTD Year end 31 October · first accounts due 24 July 2028Also SIC 43210, Electrical installationNot to be confused with HOMECROWN LTD (London, 2019), HOMECROWN CONSTRUCTION AND CARPENTRY LIMITED (Harrow, 2018) | HA3 | 24 October 2026 |
| GABRO GROUP LTD Year end 31 October · first accounts due 2 July 2028Also SIC 53202, Unlicensed carrierNot to be confused with GABRO LTD (London, 2025) | HA3 | 2 October 2026 |
| JC ELECTRICITY LTD Year end 30 September · first accounts due 16 June 2028Also SIC 41202, Construction of domestic buildings; SIC 43210, Electrical installationNot to be confused with TP ELECTRICITY LTD (Broadstairs, 2026), SPS NORTHERN ELECTRICITY LTD (Carlisle, 2026), NIGERIA ELECTRICITY LIABILITY MANAGEMENT LTD/GTE (Abuja, 2026), and 204 more with “electricity” in the name | HA3 | 16 September 2026 |
| QUADRA MEP SYSTEMS LTD Year end 30 September · first accounts due 9 June 2028Also SIC 37000, Sewerage; SIC 43210, Electrical installation; SIC 84250, Fire service activitiesNot to be confused with QUADRA-LOCK LIMITED (Harrow, 2026), QUADRA TAX ADVISORY LIMITED (London, 2026), QUADRA SOLARIS LTD (Essex, 2026), and 37 more with “quadra” in the name | HA2 | 9 September 2026 |
| INNOVATIVE-HEATING PROJECTS LTD Year end 30 September · first accounts due 7 June 2028Also SIC 43290, Other construction installation; SIC 43999, Other specialised construction activities n.e.c. | HA3 | 7 September 2026 |
| QUALITY&COMFORT LTD Year end 30 September · first accounts due 2 June 2028Also SIC 41201, Construction of commercial buildings; SIC 41202, Construction of domestic buildings; SIC 43210, Electrical installation | HA2 | 2 September 2026 |
| SAHJIK BUILDER LTD Year end 30 September · first accounts due 2 June 2028Also SIC 41202, Construction of domestic buildings; SIC 43210, Electrical installation; SIC 43390, Other building completion and finishing | HA3 | 2 September 2026 |
| BLUE MOUNTAIN PLUMBING AND HEATING LTD Year end 31 August · first accounts due 19 May 2028 | HA2 | 19 August 2026 |
| PRESTIGE CLIMATE LTD Year end 31 August · first accounts due 5 May 2028 | HA1 | 5 August 2026 |
| CONSERVE GREENE LIMITED Year end 31 July · first accounts due 21 April 2028 | HA1 | 21 July 2026 |
| NIBIRU COOLING LIMITED Year end 31 July · first accounts due 16 April 2028Not to be confused with SRC NIBIRU LTD (London, 2023), NIBIRU HOLDINGS LTD (Sheffield, 2017) | HA1 | 16 July 2026 |
| IRON OAK CONSTRUCTION LIMITED Year end 31 July · first accounts due 14 April 2028Also SIC 23320, Manufacture of bricks, tiles and construction products, in baked clay; SIC 41201, Construction of commercial buildings; SIC 41202, Construction of domestic buildings | HA2 | 14 July 2026 |
| WALKERDPLUMB LTD Year end 31 July · first accounts due 7 April 2028 | HA1 | 7 July 2026 |
| ND PLUMBING LTD Year end 31 July · first accounts due 1 April 2028 | HA1 | 1 July 2026 |
| STONE BUILD LIMITED Year end 31 July · first accounts due 1 April 2028Also SIC 41202, Construction of domestic buildings; SIC 95220, Repair of household appliances and home and garden equipment | HA2 | 1 July 2026 |
| ECO FIT ENERGY LTD Year end 30 June · first accounts due 22 March 2028Also SIC 43210, Electrical installation | HA1 | 22 June 2026 |
| AAM HEATING AND PLUMBING LTD Year end 30 June · first accounts due 9 March 2028Not to be confused with SKYPORTS AAM INFRASTRUCTURE LIMITED (London, 2026), AAM TRADERS LTD (Batley, 2026), AAM TALENT LTD (London, 2026), and 123 more with “aam” in the name | HA2 | 9 June 2026 |
| HEATING AND PLUMBING LONDON LTD Year end 30 June · first accounts due 1 March 2028 | HA3 | 1 June 2026 |
| ANDREI AIR FITTINGS LTD Year end 31 May · first accounts due 26 February 2028 | HA1 | 26 May 2026 |
| LUK VENT LIMITED Year end 31 May · first accounts due 22 February 2028Also SIC 43290, Other construction installation | HA2 | 22 May 2026 |
| D & LK CONSTRUCTION LIMITED Year end 31 May · first accounts due 18 February 2028Also SIC 16230, Manufacture of other builders' carpentry and joinery; SIC 43210, Electrical installation; SIC 43320, Joinery installation | HA2 | 18 May 2026 |
| PLAMEN THE PLUMBER LTD Year end 31 May · first accounts due 8 February 2028 | HA2 | 8 May 2026 |
| 24H ABC PLUMBING & DRAINAGE LIMITED Year end 30 April · first accounts due 28 January 2028Not to be confused with XPRESS LOCKSMITHS 24H LTD (Middlesex, 2026), WINYATES 24H HEATING & PLUMBING SERVICES LTD (Redditch, 2026), THOMAS PLUMBERS 24H LTD (Feltham, 2026), and 26 more with “24h” in the name | HA1 | 28 April 2026 |
| UTS HEATING LTD Year end 30 April · first accounts due 17 January 2028Not to be confused with UTS ACCOUNTANTS LIMITED (London, 2026), UTS ACCOUNNTANTS LTD (London, 2026), UTS PLASTERING LTD (Waterlooville, 2025), and 29 more with “uts” in the name | HA2 | 17 April 2026 |
| PAP 1 TRANS LTD Year end 30 April · first accounts due 14 January 2028Also SIC 41201, Construction of commercial buildings; SIC 43999, Other specialised construction activities n.e.c.; SIC 49410, Freight transport by roadNot to be confused with PAPÀ BAGEL LTD (London, 2026), PAP REPAIR LTD (Peterborough, 2026), PAP QUATTRO LTD (Chorley, 2026), and 44 more with “pap” in the name | HA3 | 14 April 2026 |
| DEVONALD PLUMBING LIMITED Year end 31 March · first accounts due 11 December 2027Not to be confused with DEVONALD HEARING LTD (Swansea, 2023), ANTHONY DEVONALD RICHARDS LIMITED (Llanelli, 2017), GARETH DEVONALD SMITH LIMITED (London, 2013), and 2 more with “devonald” in the name | HA2 | 11 March 2026 |
| CERACONSTRUCT LTD Year end 28 February · first accounts due 12 November 2027Also SIC 41202, Construction of domestic buildings; SIC 43210, Electrical installation; SIC 43390, Other building completion and finishing | HA1 | 12 February 2026 |
| BOBBY AND SONS HEATING AND PLUMBING LTD Year end 28 February · first accounts due 6 November 2027Not to be confused with THE WORLD OF BOBBY BLAZE LTD (Blackpool, 2026), SON OF BOBBY LIMITED (Wirral, 2026), SIR BOBBY ROBSON LOUNGE LIMITED (Newcastle upon Tyne, 2026), and 245 more with “bobby” in the name | HA2 | 6 February 2026 |
| HS PLUMBING SERVICES LTD Year end 28 February · first accounts due 3 November 2027 | HA3 | 3 February 2026 |
| ZAI PLUMB TECH LTD Limited by guarantee Year end 28 February · first accounts due 2 November 2027Not to be confused with ZAI-AIR LTD (London, 2026), ZAI VENTURES LTD (London, 2026), ZAI SYLLA LIMITED (Leicester, 2026), and 46 more with “zai” in the name | HA3 | 2 February 2026 |
| TAILOR MADE PLUMBING LIMITED Year end 31 December · first accounts due 29 September 2027 | HA2 | 29 December 2025 |
| ELECTROPLUMECH MEP SERVICES LTD Year end 31 December · first accounts due 1 September 2027Also SIC 43210, Electrical installation | HA1 | 1 December 2025 |
| SEC ROOFINGS LTD Year end 30 November · first accounts due 25 August 2027Also SIC 41202, Construction of domestic buildings; SIC 43910, Roofing activities | HA1 | 25 November 2025 |
| S P HEATING LTD Year end 30 November · first accounts due 24 August 2027 | HA3 | 24 November 2025 |
| TOPMAN CONTRACTORS LTD Year end 30 November · first accounts due 23 August 2027Also SIC 41201, Construction of commercial buildings; SIC 41202, Construction of domestic buildings; SIC 43290, Other construction installationNot to be confused with TOPMAN VAPES LIMITED (Biggleswade, 2026), TOPMAN SERVICES LIMITED (London, 2025), GOLDY TOPMAN LTD (Gateshead, 2025), and 8 more with “topman” in the name | HA2 | 23 November 2025 |
| DSG PLUMBING LIMITED Year end 30 November · first accounts due 17 August 2027Not to be confused with LUIS-DSG LTD (Croydon, 2026), DSG PROPERTY DEVELOPMENT LTD (Blackpool, 2026), DSG MOTORS (SW) LTD (Exeter, 2026), and 161 more with “dsg” in the name | HA2 | 17 November 2025 |
| T&D PLUMBING & HEATING SERVICES LTD Year end 30 November · first accounts due 3 August 2027 | HA3 | 3 November 2025 |
| RMC PLUMBING SERVICES LIMITED Year end 30 November · first accounts due 1 August 2027 | HA1 | 1 November 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.
The longest-running plumbing companies in Harrow.
The list above is the newcomers. These are the plumbing companies with a Harrow address that have been on the register longest and are still live, out of 212 in all. Years are counted from incorporation, so a business that traded before it became a company is older than it looks here.
New companies too: every new company in Middlesex, every trade (12,913 across the months we hold), or the UK list for plumbing below.
November was the busiest month.
Monthly registrations of plumbing companies in Harrow. The busiest month was November on 6. The quietest was January on 0.
New plumbing companies in Harrow, by month
Nov 2025 – Oct 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 October 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 21 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
4,829 new plumbing companies, registered March to November 2026. Any month from £15.
4,829 plumbing companies registered across the UK in March to November 2026 are in the file, each with its name, number, registered address, directors and trade. Every company registered, with its website, email and phone number where we can find one. Most companies this new have no website yet, so many rows will be the company, its address and its directors.
National per trade, Harrow and everywhere else; filter by town in the file. Any month from £15; every month we hold for £130.38, 10% off. 3p a company, £15 minimum an order. Pick one month, any mix, or everything.
Pay by card. Within a minute an email tells you when your file will arrive: usually within a few hours, never more than 48 hours.
Not ready to buy? See a free sample first: the 25 newest plumbing companies, with each one's registered address and directors, as a CSV. Get the free sample.
Five rows from this list, with an email found
Real companies from the file, picked from the ones we found an email for: most companies this new have none yet. The full file has every column and the whole address. We hide most of each email here, never in the file you buy.
| Company | Town | Registered | Trade | |
|---|---|---|---|---|
| MAINTAINRIGHT LTD | Exeter | 21 Aug 2026 | Plumbers & HVAC | i•••@maintainright.co.uk |
| THOMPSON’S THERMO TECH LTD | Stockton-on-Tees | 8 Jul 2026 | Plumbers & HVAC | i•••@thompsonsthermotech.co.uk |
| SUSTABURN LTD | Carnforth | 27 Jul 2026 | Plumbers & HVAC | e•••@sustaburn.co.uk |
| KINGDOM BOILERS LTD | Dunfermline | 1 Apr 2026 | Plumbers & HVAC | i•••@kingdomboilers.com |
| TOTALTEMP CONTROL LTD | Corby | 9 Sep 2026 | Plumbers & HVAC | e•••@totaltempcontrol.co.uk |