- Companies
- Machinery repair and installation
- Sevenoaks
- Automotive Diagnostic Specialists Ltd.
Automotive Diagnostic Specialists Ltd.
- Company number
- 10597989
- Incorporated
- 2 Feb 20179 years trading
- Registered office
- Block 10, Vestry Road, Sevenoaks, TN14 5EL
- Nature of business
- Repair and maintenance of other transport equipment n.e.c.
Automotive Diagnostic Specialists Ltd. is a 9-year-old private limited company registered in Sevenoaks, company number 10597989, one of 24 machinery repair and installation companies in Sevenoaks. Its next accounts are due at Companies House on 27 December 2026, and the CT600 for the period to 27 March 2026 is due at HMRC on 27 March 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 £98K (+68.6%) on the year before, to £241K.
- Net assets rose in 4 of 7 year-on-year comparisons on record.
- Current assets of £399K against £158K owed within a year: 2.5 times cover.
- 3 employees on average during the year.
- Balance sheets on record for 8 years, 2018 to 2025.
Net assets by year
| Year end | Net assets | Cash | Current assets | Owed within a year | Employees |
|---|---|---|---|---|---|
| 31 Mar 2025 | £241K | £41K | £399K | £158K | 3 |
| 31 Mar 2024 | £143K | £316K | £126K | 3 | |
| 31 Mar 2023 | £63K | £163K | £110K | 3 | |
| 31 Mar 2022 | £455 | £113K | £115K | 4 | |
| 31 Mar 2021 | £2,797 | £142K | £135K | 4 | |
| 31 Mar 2020 | £6,704 | £91K | £93K | 4 | |
| 31 Mar 2019 | £12K | £83K | £69K | ||
| 31 Mar 2018 | £6,810 | £43K | £32K |
Where Automotive Diagnostic Specialists Ltd. is registered
The registered office is in Sevenoaks (TN14), in the Sevenoaks local authority area, South East. Show TN14 5EL on a map.
Other trade companies in TN14
- Hawkers Aviation LimitedMachinery repair and installation
- Ceclean LtdMechanics and garages
- Fortress Roofing and Developments LtdRoofers
- Pivot and Jewels LtdRepair services
- MT Roofing and Damp Proofing LtdRoofers
- Goliath Group London LtdProperty developers
- Rel Home Care Services LtdCleaning companies
- UK Portfolioworks LtdProperty developers
What happens if Automotive Diagnostic Specialists Ltd. 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 27 December 2026.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 28 Dec 2026 to 27 Jan 2027 | £150 |
| 1 to 3 months late | 28 Jan 2027 to 27 Mar 2027 | £375 |
| 3 to 6 months late | 28 Mar 2027 to 27 Jun 2027 | £750 |
| More than 6 months late | From 28 Jun 2027 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 28 Mar 2027 | £200 |
| 3 months late | 27 Jun 2027 | another £200 |
| 6 months late | 27 Sep 2027 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 27 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
- 10597989
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 2 February 2017 (9 years ago)
- Registered office
- Block 10, Vestry Road, Sevenoaks, TN14 5EL
- Nature of business
- Repair and maintenance of other transport equipment n.e.c. (SIC 33170)
- Year end
- 27 March (accounting reference date)
- Accounts type
- Total exemption (full)
- Last accounts made up to
- 31 March 2025
- Last confirmation statement
- 16 February 2026
Filing notes for machinery repair and installation companies
Machinery repair and installation companies often carry parts stock and specialist tools, and many work on contracts that span the year end.
Similar companies in Sevenoaks
Other active machinery repair and installation companies registered in Sevenoaks.
- C T Agricultural Services Ltd2009
- Castech Refrigeration Ltd2014
- Equiax Limited2007
- Espace Airconditioning Limited1998
- Foodmate Sales Limited2019
- Hawkers Aviation Limited2026
- J J S Parts Limited2011
- LDTH Solutions Ltd2022
All machinery repair and installation companies in Sevenoaks · All trades in Sevenoaks · Machinery repair and installation across the UK
Frequently asked questions
When are Automotive Diagnostic Specialists Ltd.'s accounts due?
Automotive Diagnostic Specialists Ltd.'s next accounts are due at Companies House by 27 December 2026 (in 75 days), covering the period to 27 March 2026.
When is Automotive Diagnostic Specialists Ltd.'s CT600 due?
The CT600 for the period to 27 March 2026 is due at HMRC by 27 March 2027, 12 months after the period end. The corporation tax itself is payable earlier, by 28 December 2026.
Is Automotive Diagnostic Specialists Ltd. still trading?
Automotive Diagnostic Specialists Ltd. 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 Automotive Diagnostic Specialists Ltd. do?
Automotive Diagnostic Specialists Ltd. is registered under Repair and maintenance of other transport equipment n.e.c. (SIC 33170).
How old is Automotive Diagnostic Specialists Ltd.?
Automotive Diagnostic Specialists Ltd. was incorporated on 2 February 2017, 9 years ago.
What is the penalty if Automotive Diagnostic Specialists Ltd. 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 Automotive Diagnostic Specialists Ltd. 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.