- Companies
- Plumbers and heating engineers
- Watford
- J C Harrow Limited
J C Harrow Limited
- Company number
- 13378651
- Incorporated
- 5 May 20215 years trading
- Registered office
- 60B Garfield Street, Watford, WD24 5HB
- Nature of business
- Plumbing, heat and air-conditioning installation
J C Harrow Limited is a 5-year-old private limited company registered in Watford, company number 13378651, one of 124 plumbing and heating companies in Watford. Its next accounts are due at Companies House on 28 February 2027, and the CT600 for the period to 31 May 2026 is due at HMRC on 31 May 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 up £99 on the year before, to £100.
- Net assets rose in 1 of 3 year-on-year comparisons on record.
- Current assets of £11K against £12K owed within a year: 0.9 times cover.
- 1 employee on average, up from 0 the year before.
- Balance sheets on record for 4 years, 2022 to 2025.
Net assets by year
| Year end | Net assets | Cash | Current assets | Owed within a year | Employees |
|---|---|---|---|---|---|
| 31 May 2025 | £100 | £1,073 | £11K | £12K | 1 |
| 31 May 2024 | £1 | £1 | 0 | ||
| 31 May 2023 | £3,101 | £5,846 | £4,983 | 0 | |
| 31 May 2022 | £4,435 | £4,999 | £2,702 | 1 |
Where J C Harrow Limited is registered
The registered office is in Watford (WD24), in the Watford local authority area, East of England. Show WD24 5HB on a map.
Other trade companies in WD24
- VK28 Services LtdFinishing trades
- DRR Builders LtdBuilders
- Redmarsh Trade LimitedMotor traders
- Herts Trading LtdMotor traders
- Coversure Roofing & Building LtdRoofers
- LLS Building LimitedBuilders
- Snagsense LtdSpecialist contractors
- D&X Cleaning Solutions LtdCleaning companies
What happens if J C Harrow 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 28 February 2027.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 1 Mar 2027 to 31 Mar 2027 | £150 |
| 1 to 3 months late | 1 Apr 2027 to 31 May 2027 | £375 |
| 3 to 6 months late | 1 Jun 2027 to 31 Aug 2027 | £750 |
| More than 6 months late | From 1 Sep 2027 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Jun 2027 | £200 |
| 3 months late | 31 Aug 2027 | another £200 |
| 6 months late | 30 Nov 2027 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 31 May 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
- 13378651
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 5 May 2021 (5 years ago)
- Registered office
- 60B Garfield Street, Watford, WD24 5HB
- Nature of business
- Plumbing, heat and air-conditioning installation (SIC 43220)
- Year end
- 31 May (accounting reference date)
- Accounts type
- Total exemption (full)
- Last accounts made up to
- 31 May 2025
- Last confirmation statement
- 4 May 2026
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 Watford
Other active plumbing and heating companies registered in Watford.
- J. Kendal Gas, Plumbing, and Heating Ltd2019
- Kempair Limited2003
- Kenworx Plumbing & Heating Ltd2026
- Kingswood Heating Limited2017
- Landyk Refri Ltd2026
- LDN Plumbing and Heating Services Ltd2023
- Leo Gas Inspection Limited2016
- Lety Services Ltd2017
All plumbing and heating companies in Watford · All trades in Watford · Plumbers and heating engineers across the UK
Frequently asked questions
When are J C Harrow Limited's accounts due?
J C Harrow Limited's next accounts are due at Companies House by 28 February 2027 (in 138 days), covering the period to 31 May 2026.
When is J C Harrow Limited's CT600 due?
The CT600 for the period to 31 May 2026 is due at HMRC by 31 May 2027, 12 months after the period end. The corporation tax itself is payable earlier, by 1 March 2027.
Is J C Harrow Limited still trading?
J C Harrow 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 J C Harrow Limited do?
J C Harrow Limited is registered under Plumbing, heat and air-conditioning installation (SIC 43220).
How old is J C Harrow Limited?
J C Harrow Limited was incorporated on 5 May 2021, 5 years ago.
What is the penalty if J C Harrow 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 J C Harrow 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.