- Company number
- 02411960
- Incorporated
- 8 Aug 198937 years trading
- Registered office
- 5 Olds Approach, Tolpits Lane, Watford, WD18 9TD
- Nature of business
- Glazing; Other business support service activities n.e.c.
Harp Windows (Watford) Limited is a 37-year-old private limited company registered in Watford, company number 02411960, one of 15 glazing 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 £1,734 (+0.9%) on the year before, to £189K.
- Net assets rose in 7 of 9 year-on-year comparisons on record.
- Current assets of £216K against £193K owed within a year: 1.1 times cover.
- 5 employees on average during the year.
- Balance sheets on record for 10 years, 2015 to 2025.
Net assets by year
| Year end | Net assets | Cash | Current assets | Owed within a year | Employees |
|---|---|---|---|---|---|
| 31 May 2025 | £189K | £216K | £193K | 5 | |
| 31 May 2024 | £188K | £243K | £185K | 5 | |
| 31 May 2023 | £178K | £266K | £185K | 6 | |
| 31 May 2022 | £146K | £103K | £471K | £315K | 8 |
| 31 May 2021 | £25K | £18K | £304K | £263K | 7 |
| 31 May 2020 | -£5,431 | £25K | £240K | £221K | 8 |
| 31 Dec 2018 | £25K | £222K | £225K | 10 | |
| 31 Dec 2017 | £25K | £0 | £212K | £197K | 11 |
| 31 Dec 2016 | £21K | £13K | £271K | £242K | 11 |
| 31 Dec 2015 | £15K | £5,147 | £218K | £219K |
Where Harp Windows (Watford) Limited is registered
The registered office is in Watford (WD18), in the Three Rivers local authority area, East of England. Show WD18 9TD on a map.
Other trade companies in WD18
- Aston Contractors LimitedInstallers
- Basky 613 LtdProperty developers
- M&E Motors LtdMotor traders
- Jeservicesgroup LtdBuilders
- RCK’S Car Wash Ltd LtdMechanics and garages
- S Buildx LtdBuilders
- CDP Mechanical Contracting LtdPlumbers and heating engineers
- Lane Commercial LtdCivil engineering
What happens if Harp Windows (Watford) 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
- 02411960
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 8 August 1989 (37 years ago)
- Registered office
- 5 Olds Approach, Tolpits Lane, Watford, WD18 9TD
- Nature of business
- Glazing (SIC 43342)
Other business support service activities n.e.c. (SIC 82990) - Year end
- 31 May (accounting reference date)
- Accounts type
- Micro-entity
- Last accounts made up to
- 31 May 2025
- Last confirmation statement
- 11 June 2026
- Charges (mortgages)
- 0 outstanding of 3 registered
Filing notes for glazing companies
Glazing companies often take deposits before work starts. Deposits held at the year end are a liability, not income, until the job is done.
Similar companies in Watford
Other active glazing companies registered in Watford.
- Kingswood Specialist Glazing Limited2009
- London Sma Ltd2024
- Manafu Cladding Ltd2017
- Qualdoors Ltd2018
- Roglazing Limited2020
- Southern Aluminium and UPVC Window Company (London) Limited1981
- (UK) Window Fix Limited2022
- B M Windows & Doors Limited2010
All glazing companies in Watford · All trades in Watford · Glaziers across the UK
Frequently asked questions
When are Harp Windows (Watford) Limited's accounts due?
Harp Windows (Watford) 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 Harp Windows (Watford) 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 Harp Windows (Watford) Limited still trading?
Harp Windows (Watford) 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 Harp Windows (Watford) Limited do?
Harp Windows (Watford) Limited is registered under Glazing (SIC 43342); Other business support service activities n.e.c. (SIC 82990).
How old is Harp Windows (Watford) Limited?
Harp Windows (Watford) Limited was incorporated on 8 August 1989, 37 years ago.
What is the penalty if Harp Windows (Watford) 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 Harp Windows (Watford) 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.