- Companies
- Installers
- Isleworth
- Tba Site Services Ltd
Tba Site Services Ltd
- Company number
- 14642119
- Incorporated
- 6 Feb 20233 years trading
- Registered office
- 173A Spring Grove Road, Isleworth, TW7 4BA
- Nature of business
- Other construction installation
Tba Site Services Ltd is a 3-year-old private limited company registered in Isleworth, company number 14642119, one of 15 installation companies (insulation, lifts, shutters and similar) in Isleworth. Its next accounts are due at Companies House on 31 December 2026, and the CT600 for the period to 31 March 2026 is due at HMRC on 31 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 down £160 (-31.3%) on the year before, to £351.
- 1 employee on average, up from 0 the year before.
- Balance sheets on record for 2 years, 2024 to 2025.
Net assets by year
| Year end | Net assets | Cash | Current assets | Owed within a year | Employees |
|---|---|---|---|---|---|
| 31 Mar 2025 | £351 | £5,676 | 1 | ||
| 31 Mar 2024 | £511 | £92K | £92K | 0 |
Where Tba Site Services Ltd is registered
The registered office is in Isleworth (TW7), in the Hounslow local authority area, London. Show TW7 4BA on a map.
Other trade companies in TW7
- Pracom LtdMachinery repair and installation
- V&R Construction Group LtdBuilders
- Gio Construction LimitedBuilders
- S & H Bodywork LtdMechanics and garages
- KS Garage Isleworth LtdMotor traders
- C Wiseman Services LtdCleaning companies
- Avenida Developments LtdProperty developers
- Courtesy Cars Group UK LtdMotor traders
What happens if Tba Site Services 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 31 December 2026.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 1 Jan 2027 to 31 Jan 2027 | £150 |
| 1 to 3 months late | 1 Feb 2027 to 31 Mar 2027 | £375 |
| 3 to 6 months late | 1 Apr 2027 to 30 Jun 2027 | £750 |
| More than 6 months late | From 1 Jul 2027 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Apr 2027 | £200 |
| 3 months late | 30 Jun 2027 | another £200 |
| 6 months late | 30 Sep 2027 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 31 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
- 14642119
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 6 February 2023 (3 years ago)
- Registered office
- 173A Spring Grove Road, Isleworth, TW7 4BA
- Nature of business
- Other construction installation (SIC 43290)
- Year end
- 31 March (accounting reference date)
- Accounts type
- Micro-entity
- Last accounts made up to
- 31 March 2025
- Last confirmation statement
- 5 February 2026
Filing notes for installation companies (insulation, lifts, shutters and similar)
Installation companies (insulation, lifts, shutters, solar and similar) often buy stock and equipment up front, so stock at the year end and capital allowances both affect the tax bill.
Similar companies in Isleworth
Other active installation companies (insulation, lifts, shutters and similar) registered in Isleworth.
- A & A Maintenace Ltd2025
- Act4Home Ltd2003
- Ak Building and Property Services Ltd2019
- Cameleo UK Ltd2026
- Fenpro Limited2008
- Fruit and Barley Limited2017
- Healey & McGill Limited2018
- Ip Fire & Security Limited2009
All installation companies (insulation, lifts, shutters and similar) in Isleworth · All trades in Isleworth · Installers across the UK
Frequently asked questions
When are Tba Site Services Ltd's accounts due?
Tba Site Services Ltd's next accounts are due at Companies House by 31 December 2026 (in 79 days), covering the period to 31 March 2026.
When is Tba Site Services Ltd's CT600 due?
The CT600 for the period to 31 March 2026 is due at HMRC by 31 March 2027, 12 months after the period end. The corporation tax itself is payable earlier, by 1 January 2027.
Is Tba Site Services Ltd still trading?
Tba Site Services 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 Tba Site Services Ltd do?
Tba Site Services Ltd is registered under Other construction installation (SIC 43290).
How old is Tba Site Services Ltd?
Tba Site Services Ltd was incorporated on 6 February 2023, 3 years ago.
What is the penalty if Tba Site Services 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 Tba Site Services 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.