- Company number
- 17096760
- Incorporated
- 17 Mar 2026
- Registered office
- 3 Concanon Road, London, SW2 5SY
- Nature of business
- Construction of domestic buildings
Acb Mechanical Services Limited is a newly incorporated private limited company registered in London, company number 17096760, one of 12,075 building contractors in London. Its next accounts are due at Companies House on 17 December 2027, and its first CT600 is due at HMRC on 16 March 2028.
Key dates
This company has not filed accounts yet. First accounts are due 21 months after incorporation, and the first period can run longer than a year.
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Where Acb Mechanical Services Limited is registered
The registered office is in London (SW2), in the Lambeth local authority area, London. Show SW2 5SY on a map.
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Also registered at this address
3 other companies use the same registered office as Acb Mechanical Services Limited.
- Eristine Motor Group LtdBuilders
- Master Rotors Mir LtdPlumbers and heating engineers
- Sunningham Cars LtdMotor traders
What happens if Acb Mechanical 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 17 December 2027.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 18 Dec 2027 to 17 Jan 2028 | £150 |
| 1 to 3 months late | 18 Jan 2028 to 17 Mar 2028 | £375 |
| 3 to 6 months late | 18 Mar 2028 to 17 Jun 2028 | £750 |
| More than 6 months late | From 18 Jun 2028 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Apr 2028 | £200 |
| 3 months late | 30 Jun 2028 | another £200 |
| 6 months late | 30 Sep 2028 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 31 Mar 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
- 17096760
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 17 March 2026
- Registered office
- 3 Concanon Road, London, SW2 5SY
- Nature of business
- Construction of domestic buildings (SIC 41202)
- Year end
- 31 March (accounting reference date)
- Accounts type
- No accounts filed yet
Filing notes for building contractors
Building companies often run the Construction Industry Scheme as a contractor, a subcontractor or both. CIS deductions suffered during the year are set against the PAYE bill, and any unrecovered balance at the year end matters when the accounts are drawn up.
Similar companies in London
Other active building contractors registered in London.
- Acc31 Limited2018
- Accanto Construction Ltd2025
- Access Building Contractors Limited2005
- Accolade Design and Build Limited2021
- Accord Construction Ltd2018
- Accurate Developments Limited2005
- Accurate Facades Solutions Ltd2025
- Acd Engineering Group Ltd2026
All building contractors in London · All trades in London · Builders across the UK
Frequently asked questions
When are Acb Mechanical Services Limited's accounts due?
Acb Mechanical Services Limited's next accounts are due at Companies House by 17 December 2027 (in 431 days), covering the period to 31 March 2027.
When is Acb Mechanical 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 16 March 2027, due by 16 March 2028, and one for the period to 31 March 2027, due by 31 March 2028. Corporation tax is payable 9 months and 1 day after the end of each.
Is Acb Mechanical Services Limited still trading?
Acb Mechanical 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 Acb Mechanical Services Limited do?
Acb Mechanical Services Limited is registered under Construction of domestic buildings (SIC 41202).
How old is Acb Mechanical Services Limited?
Acb Mechanical Services Limited was incorporated on 17 March 2026, less than a year ago.
What is the penalty if Acb Mechanical 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 Acb Mechanical 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.