- Companies
- Finishing trades
- St Albans
- Harpenden Window Company Limited
Harpenden Window Company Limited
- Company number
- 02080460
- Incorporated
- 4 Dec 198639 years trading
- Registered office
- 145/147 Hatfield Road, St Albans, Hertfordshire, AL1 4JY
- Nature of business
- Other building completion and finishing
Harpenden Window Company Limited is a 39-year-old private limited company registered in St Albans, company number 02080460, one of 53 building finishing companies in St Albans. Its next accounts are due at Companies House on 31 October 2027, and the CT600 for the period to 31 January 2027 is due at HMRC on 31 January 2028.
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 £46K (-23.1%) on the year before, to £155K.
- Net assets rose in 5 of 9 year-on-year comparisons on record.
- Current assets of £483K against £401K owed within a year: 1.2 times cover.
- 15 employees on average, up from 13 the year before.
- Balance sheets on record for 10 years, 2017 to 2026.
Net assets by year
| Year end | Net assets | Cash | Current assets | Owed within a year | Employees |
|---|---|---|---|---|---|
| 31 Jan 2026 | £155K | £173K | £483K | £401K | 15 |
| 31 Jan 2025 | £201K | £35K | £352K | £218K | 13 |
| 31 Jan 2024 | £212K | £55K | £395K | £265K | 13 |
| 31 Jan 2023 | £353K | £110K | £556K | £305K | 14 |
| 31 Jan 2022 | £332K | £107K | £511K | £264K | 13 |
| 31 Jan 2021 | £231K | £93K | £473K | £316K | 13 |
| 31 Jan 2020 | £118K | £40K | £230K | £163K | 14 |
| 31 Jan 2019 | £34K | £2 | £200K | £217K | 13 |
| 31 Jan 2018 | £860 | £25 | £193K | £265K | 11 |
| 31 Jan 2017 | £988 | £425 | £151K | £196K |
Where Harpenden Window Company Limited is registered
The registered office is in St Albans (AL1), in the St Albans local authority area, East of England. Show AL1 4JY on a map.
Other trade companies in AL1
- Alban Climate LimitedPlumbers and heating engineers
- Arj Vehicle Trading LtdMotor traders
- LCB Electrical Service LimitedElectricians
- R&T Home Improvements LtdFinishing trades
- Akh Global Ventures LimitedElectricians
- Arkenstone Roof Care LtdRoofers
- Doyle House Group LimitedProperty developers
- Quinnmore Construction LimitedBuilders
Also registered at this address
6 other companies use the same registered office as Harpenden Window Company Limited.
- Annables by Davis LimitedFinishing trades
- Cawr LimitedFacilities management
- Davis Bespoke Homes LtdFinishing trades
- My Autohouse LimitedMotor traders
- Q Grand LtdMotor traders
- Quentin Brook Associates LimitedMotor traders
What happens if Harpenden Window Company 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 October 2027.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 1 Nov 2027 to 30 Nov 2027 | £150 |
| 1 to 3 months late | 1 Dec 2027 to 31 Jan 2028 | £375 |
| 3 to 6 months late | 1 Feb 2028 to 30 Apr 2028 | £750 |
| More than 6 months late | From 1 May 2028 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Feb 2028 | £200 |
| 3 months late | 30 Apr 2028 | another £200 |
| 6 months late | 31 Jul 2028 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 31 Jan 2029 | 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
- 02080460
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 4 December 1986 (39 years ago)
- Registered office
- 145/147 Hatfield Road, St Albans, Hertfordshire, AL1 4JY
- Nature of business
- Other building completion and finishing (SIC 43390)
- Year end
- 31 January (accounting reference date)
- Accounts type
- Total exemption (full)
- Last accounts made up to
- 31 January 2026
- Last confirmation statement
- 22 June 2026
- Charges (mortgages)
- 1 outstanding of 1 registered
Filing notes for building finishing companies
Finishing trade companies cover a wide range of work. Most are micro-entities with simple accounts and a straightforward CT600.
Similar companies in St Albans
Other active building finishing companies registered in St Albans.
- Hawk Ventures Limited2002
- Heartwood Shutters Limited2015
- Izzi Renovations Ltd2020
- K16 Contracts Limited2006
- Keris Ventures Limited Limited2026
- Larbre Maintenance Property Services Limited2024
- Lines & Lines Builders Ltd2021
- London Drone Company Ltd2017
All building finishing companies in St Albans · All trades in St Albans · Finishing trades across the UK
Frequently asked questions
When are Harpenden Window Company Limited's accounts due?
Harpenden Window Company Limited's next accounts are due at Companies House by 31 October 2027 (in 383 days), covering the period to 31 January 2027.
When is Harpenden Window Company Limited's CT600 due?
The CT600 for the period to 31 January 2027 is due at HMRC by 31 January 2028, 12 months after the period end. The corporation tax itself is payable earlier, by 1 November 2027.
Is Harpenden Window Company Limited still trading?
Harpenden Window Company 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 Harpenden Window Company Limited do?
Harpenden Window Company Limited is registered under Other building completion and finishing (SIC 43390).
How old is Harpenden Window Company Limited?
Harpenden Window Company Limited was incorporated on 4 December 1986, 39 years ago.
What is the penalty if Harpenden Window Company 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 Harpenden Window Company 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.