- Companies
- Plumbers and heating engineers
- Harrow
- Ok Plumbing and Heating Limited
Ok Plumbing and Heating Limited
- Company number
- 12991900
- Incorporated
- 3 Nov 20205 years trading
- Registered office
- 18 Elms Road, Harrow, HA3 6BQ
- Nature of business
- Plumbing, heat and air-conditioning installation
Ok Plumbing and Heating Limited is a 5-year-old private limited company registered in Harrow, company number 12991900, one of 154 plumbing and heating companies in Harrow. Its next accounts are due at Companies House on 31 August 2027, and the CT600 for the period to 30 November 2026 is due at HMRC on 30 November 2027.
Key dates
Worked out from the year end and filing history on the Companies House register.
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Finances
From each year's balance sheet filed at Companies House. Small companies do not have to publish turnover or profit, so these are balance sheet figures.
- Net assets down £2,215 (-29.6%) on the year before, to £5,273.
- Net assets rose in 3 of 4 year-on-year comparisons on record.
- Current assets of £6,082 against £809 owed within a year: 7.5 times cover.
- No employees reported for the latest year (directors are often not counted as employees).
- Balance sheets on record for 5 years, 2021 to 2025.
Net assets by year
| Year end | Net assets | Cash | Current assets | Owed within a year | Employees |
|---|---|---|---|---|---|
| 30 Nov 2025 | £5,273 | £6,082 | £809 | 0 | |
| 30 Nov 2024 | £7,488 | £8,564 | £1,076 | 0 | |
| 30 Nov 2023 | £7,261 | £8,393 | £1,132 | 0 | |
| 30 Nov 2022 | £5,012 | £8,261 | £3,249 | 0 | |
| 30 Nov 2021 | £2,023 | £3,939 | £1,916 | 0 |
Who runs and owns Ok Plumbing and Heating Limited
From the Companies House register. Individuals are shown by initials only; the full register is on Companies House.
Officer
| Name | Role | Appointed |
|---|---|---|
| O*** K*** | Director | Nov 2020 |
Person with significant control
Where Ok Plumbing and Heating Limited is registered
The registered office is in Harrow (HA3), in the Harrow local authority area, London. Show HA3 6BQ on a map.
Other trade companies in HA3
- M&M Team Solutions LimitedCleaning companies
- Asr234 LimitedCivil engineering
- Shine Bright With NV LtdMechanics and garages
- Direct Sparks LtdMachinery repair and installation
- Meral Decoration & Maintenance LtdPainters and decorators
- Add22 LtdCivil engineering
- Floyd Cleaners LimitedCleaning companies
- Amalia&Ioana LimitedBuilders
Also registered at this address
4 other companies use the same registered office as Ok Plumbing and Heating Limited.
What happens if Ok Plumbing and Heating Limited files late
Companies House charges an automatic penalty the day after the deadline, and it rises the longer the accounts are late. These are the dates for this company's accounts due on 31 August 2027.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 1 Sep 2027 to 30 Sep 2027 | £150 |
| 1 to 3 months late | 1 Oct 2027 to 30 Nov 2027 | £375 |
| 3 to 6 months late | 1 Dec 2027 to 29 Feb 2028 | £750 |
| More than 6 months late | From 1 Mar 2028 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Dec 2027 | £200 |
| 3 months late | 29 Feb 2028 | another £200 |
| 6 months late | 30 May 2028 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 30 Nov 2028 | another 10% of any unpaid tax |
For returns filed on or after 1 April 2026. Late three times in a row and the £200 penalties become £1,000 each.
Company details
As held on the Companies House register.
- Company number
- 12991900
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 3 November 2020 (5 years ago)
- Registered office
- 18 Elms Road, Harrow, HA3 6BQ
- Nature of business
- Plumbing, heat and air-conditioning installation (SIC 43220)
- Year end
- 30 November (accounting reference date)
- Accounts type
- Micro-entity
- Last accounts made up to
- 30 November 2025
- Last confirmation statement
- 2 November 2025
- Previous names
- Ok Plumbing Limited (until 14 Nov 2023)
Filing notes for plumbing and heating companies
Plumbing and heating companies frequently work under CIS for main contractors and also directly for homeowners, so turnover can mix CIS and non-CIS income.
Similar companies in Harrow
Other active plumbing and heating companies registered in Harrow.
- P.Ac.E Building Services (UK) Limited2001
- Parkland Heating & Plumbing Ltd2015
- PHD Mechanical Ltd2008
- Phoenix Heating Limited2007
- Plamen the Plumber Ltd2026
- Platinum Heating Limited2011
- Prestige Climate Ltd2026
- Pro Plumbing Heating & Boilers Ltd2020
All plumbing and heating companies in Harrow · All trades in Harrow · Plumbers and heating engineers across the UK
Frequently asked questions
When are Ok Plumbing and Heating Limited's accounts due?
Ok Plumbing and Heating Limited's next accounts are due at Companies House by 31 August 2027 (in 322 days), covering the period to 30 November 2026.
When is Ok Plumbing and Heating Limited's CT600 due?
The CT600 for the period to 30 November 2026 is due at HMRC by 30 November 2027, 12 months after the period end. The corporation tax itself is payable earlier, by 1 September 2027.
Is Ok Plumbing and Heating Limited still trading?
Ok Plumbing and Heating Limited is listed as active on the Companies House register as of 1 Oct 2026. Active means it has not been dissolved or entered insolvency; it does not show whether it is currently taking on work.
What does Ok Plumbing and Heating Limited do?
Ok Plumbing and Heating Limited is registered under Plumbing, heat and air-conditioning installation (SIC 43220).
How old is Ok Plumbing and Heating Limited?
Ok Plumbing and Heating Limited was incorporated on 3 November 2020, 5 years ago.
Who runs Ok Plumbing and Heating Limited?
Ok Plumbing and Heating Limited has 1 active director, the longest-serving appointed in Nov 2020. Their names and service addresses are on the Companies House register.
Who owns Ok Plumbing and Heating Limited?
One person or company has significant control of Ok Plumbing and Heating Limited: an individual (has significant influence or control).
What is the penalty if Ok Plumbing and Heating Limited files its accounts late?
Companies House charges £150 if the accounts are up to 1 month late, £375 up to 3 months, £750 up to 6 months and £1,500 after that, doubled if the previous year's accounts were also late. HMRC charges £200 for a CT600 filed a day late and another £200 at 3 months.
Official records
View Ok Plumbing and Heating Limited on Companies House for filed documents, officers and the full history.
Based on the Companies House register (snapshot 1 Oct 2026). Deadlines are worked out from the register and assume a standard accounting period; a change of year end or a short period moves them. This page is general information, not tax or accountancy advice.