- Companies
- Finishing trades
- A1 Group (London) Ltd
A1 Group (London) Ltd
- Company number
- 12435365
- Incorporated
- 31 Jan 20206 years trading
- Registered office
- Office 1, Rear of 37 Station Road, Belmont, Surrey, SM2 6DF
- Nature of business
- Other building completion and finishing
A1 Group (London) Ltd is a 6-year-old private limited company registered in Belmont, company number 12435365, one of the UK's building finishing companies. 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 £264 (-25.2%) on the year before, to £785.
- Net assets rose in 1 of 5 year-on-year comparisons on record.
- No employees reported for the latest year (directors are often not counted as employees).
- Balance sheets on record for 6 years, 2021 to 2026.
Net assets by year
| Year end | Net assets | Cash | Current assets | Owed within a year | Employees |
|---|---|---|---|---|---|
| 31 Jan 2026 | £785 | £801 | 0 | ||
| 31 Jan 2025 | £1,049 | £1,221 | 0 | ||
| 31 Jan 2024 | £1,229 | £1,975 | 1 | ||
| 31 Jan 2023 | £1,409 | £2,689 | 1 | ||
| 31 Jan 2022 | £1,695 | £4,924 | £3,229 | 1 | |
| 31 Jan 2021 | £892 | £4,217 | £10K | £9,556 | 1 |
Where A1 Group (London) Ltd is registered
The registered office is in Belmont (SM2), in the Sutton local authority area, London. Show SM2 6DF on a map.
Other trade companies in SM2
- Stent Projects London LtdBuilders
- Ry Rigging Services LtdInstallers
- JP Plumbing, Heating & Drainage Solutions LtdPlumbers and heating engineers
- MR & Sons Roofing & Building LtdBuilders
- Velora Facilities LimitedCleaning companies
- Sparkle Shark LtdCleaning companies
- GL Building Solutions LtdBuilders
- Bespoke Air Design and Installation LimitedPlumbers and heating engineers
Also registered at this address
2 other companies use the same registered office as A1 Group (London) Ltd.
- A1 Heating & Plumbing (London) LtdPlumbers and heating engineers
- DD Autofix LtdMechanics and garages
What happens if A1 Group (London) 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 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
- 12435365
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 31 January 2020 (6 years ago)
- Registered office
- Office 1, Rear of 37 Station Road, Belmont, Surrey, SM2 6DF
- 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
- 30 January 2026
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
Other active building finishing companies.
Frequently asked questions
When are A1 Group (London) Ltd's accounts due?
A1 Group (London) Ltd's next accounts are due at Companies House by 31 October 2027 (in 383 days), covering the period to 31 January 2027.
When is A1 Group (London) Ltd'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 A1 Group (London) Ltd still trading?
A1 Group (London) 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 A1 Group (London) Ltd do?
A1 Group (London) Ltd is registered under Other building completion and finishing (SIC 43390).
How old is A1 Group (London) Ltd?
A1 Group (London) Ltd was incorporated on 31 January 2020, 6 years ago.
What is the penalty if A1 Group (London) 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 A1 Group (London) 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.