- Companies
- Specialist contractors
- Knebworth
- Auto Door Services Limited
Auto Door Services Limited
- Company number
- 04513823
- Incorporated
- 16 Aug 200224 years trading
- Registered office
- 21 Westland Road, Knebworth, SG3 6AS
- Nature of business
- Other specialised construction activities n.e.c.
Auto Door Services Limited is a 24-year-old private limited company registered in Knebworth, company number 04513823, one of 8 specialist construction companies in Knebworth. Its next accounts are due at Companies House on 16 December 2026, and its first CT600 is due at HMRC on 18 September 2026.
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 £31K (-33.5%) on the year before, to £62K.
- Net assets rose in 3 of 9 year-on-year comparisons on record.
- Current assets of £134K against £85K owed within a year: 1.6 times cover.
- 5 employees on average, up from 4 the year before.
- Balance sheets on record for 10 years, 2015 to 2024.
Net assets by year
| Year end | Net assets | Cash | Current assets | Owed within a year | Employees |
|---|---|---|---|---|---|
| 18 Sep 2024 | £62K | £134K | £85K | 5 | |
| 19 Sep 2023 | £93K | £183K | £78K | 4 | |
| 20 Sep 2022 | £42K | £142K | £68K | 6 | |
| 21 Sep 2021 | £72K | £165K | £66K | 5 | |
| 22 Sep 2020 | £43K | £261K | £35K | 4 | |
| 23 Sep 2019 | £90K | £127K | £58K | 4 | |
| 25 Sep 2018 | £127K | £151K | £50K | ||
| 27 Sep 2017 | £141K | £120K | £11K | ||
| 29 Sep 2016 | £130K | £62K | £137K | £21K | |
| 29 Sep 2015 | £151K | £75K | £180K | £45K |
Where Auto Door Services Limited is registered
The registered office is in Knebworth (SG3), in the North Hertfordshire local authority area, East of England. Show SG3 6AS on a map.
Other trade companies in SG3
- Unityrock Services LtdBuilders
- SH Dev 1 LtdProperty developers
- DJ Monk LimitedMechanics and garages
- BCC Construction LtdBuilders
- Knebworth Refinishing LimitedMechanics and garages
- CC Brickwork LtdProperty developers
- KGS Landscaping & Ground Works LtdLandscapers and gardeners
- Cube Installations Co. LtdFloor and wall tilers
Also registered at this address
1 other company uses the same registered office as Auto Door Services Limited.
- FGS Building and Decorating Contractors LimitedPainters and decorators
What happens if Auto Door Services 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 16 December 2026.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 17 Dec 2026 to 16 Jan 2027 | £150 |
| 1 to 3 months late | 17 Jan 2027 to 16 Mar 2027 | £375 |
| 3 to 6 months late | 17 Mar 2027 to 16 Jun 2027 | £750 |
| More than 6 months late | From 17 Jun 2027 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 17 Mar 2027 | £200 |
| 3 months late | 16 Jun 2027 | another £200 |
| 6 months late | 16 Sep 2027 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 16 Mar 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
- 04513823
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 16 August 2002 (24 years ago)
- Registered office
- 21 Westland Road, Knebworth, SG3 6AS
- Nature of business
- Other specialised construction activities n.e.c. (SIC 43999)
- Year end
- 16 September (accounting reference date)
- Accounts type
- Micro-entity
- Last accounts made up to
- 18 September 2024
- Last confirmation statement
- 8 March 2026
Filing notes for specialist construction companies
Specialist contractors often work under CIS for main contractors. Retentions held back by the customer still count towards turnover once the work is done.
Similar companies in Knebworth
Other active specialist construction companies registered in Knebworth.
- C&G Bathroom Solutions Limited2016
- Chronos Expert Services Limited2025
- Cjexec Ltd2025
- PJC Smith Limited2013
- Ramsey Stone Consultants Ltd2017
- S.B.S. Building Consultants Limited1979
- Stan Limited2002
All specialist construction companies in Knebworth · All trades in Knebworth · Specialist contractors across the UK
Frequently asked questions
When are Auto Door Services Limited's accounts due?
Auto Door Services Limited's next accounts are due at Companies House by 16 December 2026 (in 65 days), covering the period to 16 March 2026.
When is Auto Door Services Limited's CT600 due?
The first accounts cover more than 12 months, so there are two Company Tax Returns: one for the 12 months to 18 September 2025, due by 18 September 2026, and one for the period to 16 March 2026, due by 16 March 2027. Corporation tax is payable 9 months and 1 day after the end of each.
Is Auto Door Services Limited still trading?
Auto Door Services 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 Auto Door Services Limited do?
Auto Door Services Limited is registered under Other specialised construction activities n.e.c. (SIC 43999).
How old is Auto Door Services Limited?
Auto Door Services Limited was incorporated on 16 August 2002, 24 years ago.
What is the penalty if Auto Door Services 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 Auto Door Services 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.