- Companies
- Finishing trades
- Barking
- A1 UK Builders Ltd
A1 UK Builders Ltd
- Company number
- 12651441
- Incorporated
- 8 Jun 20206 years trading
- Registered office
- 43 Blake Avenue, Barking, IG11 9SG
- Nature of business
- Other building completion and finishing
A1 UK Builders Ltd is a 6-year-old private limited company registered in Barking, company number 12651441, one of 86 building finishing companies in Barking. Its next accounts are due at Companies House on 31 March 2027, and the CT600 for the period to 30 June 2026 is due at HMRC on 30 June 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 £5,770 (+127.2%) on the year before, to £1,235.
- Net assets rose in 2 of 4 year-on-year comparisons on record.
- Current assets of £6,818 against £5,583 owed within a year: 1.2 times cover.
- 1 employee on average, up from 0 the year before.
- Balance sheets on record for 5 years, 2021 to 2025.
Net assets by year
| Year end | Net assets | Cash | Current assets | Owed within a year | Employees |
|---|---|---|---|---|---|
| 30 Jun 2025 | £1,235 | £6,818 | £5,583 | 1 | |
| 30 Jun 2024 | -£4,535 | £6,289 | £11K | 0 | |
| 30 Jun 2023 | -£4,535 | £6,289 | £11K | 0 | |
| 30 Jun 2022 | £7,050 | £53 | £5,688 | £13K | 2 |
| 30 Jun 2021 | £1 | £1 | 0 |
Where A1 UK Builders Ltd is registered
The registered office is in Barking (IG11), in the Barking and Dagenham local authority area, London. Show IG11 9SG on a map.
Other trade companies in IG11
- Handikeep LimitedJoiners and carpenters
- Bright2Shine LtdCleaning companies
- Fage Adviser LtdSpecialist contractors
- Slouy LtdRoofers
- MMG Corp LimitedMotor traders
- M&K Autocare LtdMechanics and garages
- Z & L Metal & Vehicle Global Trading LtdMotor traders
- Es Automotives LtdMotor traders
Also registered at this address
1 other company uses the same registered office as A1 UK Builders Ltd.
- Naqvi Logistics LimitedBuilders
What happens if A1 UK Builders 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 March 2027.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 1 Apr 2027 to 30 Apr 2027 | £150 |
| 1 to 3 months late | 1 May 2027 to 30 Jun 2027 | £375 |
| 3 to 6 months late | 1 Jul 2027 to 30 Sep 2027 | £750 |
| More than 6 months late | From 1 Oct 2027 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Jul 2027 | £200 |
| 3 months late | 30 Sep 2027 | another £200 |
| 6 months late | 30 Dec 2027 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 30 Jun 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
- 12651441
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 8 June 2020 (6 years ago)
- Registered office
- 43 Blake Avenue, Barking, IG11 9SG
- Nature of business
- Other building completion and finishing (SIC 43390)
- Year end
- 30 June (accounting reference date)
- Accounts type
- Micro-entity
- Last accounts made up to
- 30 June 2025
- Last confirmation statement
- 7 June 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 in Barking
Other active building finishing companies registered in Barking.
- Ac Interiors Ltd2025
- Afrikan Dishes and Decor Ltd2022
- Ah Property Fix Ltd2023
- Alex the Builder Ltd2014
- All in One Box Ltd2022
- Altiyus Ltd2025
- Ams Maintenance Limited2019
- Apo Systems Limited2025
All building finishing companies in Barking · All trades in Barking · Finishing trades across the UK
Frequently asked questions
When are A1 UK Builders Ltd's accounts due?
A1 UK Builders Ltd's next accounts are due at Companies House by 31 March 2027 (in 169 days), covering the period to 30 June 2026.
When is A1 UK Builders Ltd's CT600 due?
The CT600 for the period to 30 June 2026 is due at HMRC by 30 June 2027, 12 months after the period end. The corporation tax itself is payable earlier, by 1 April 2027.
Is A1 UK Builders Ltd still trading?
A1 UK Builders 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 UK Builders Ltd do?
A1 UK Builders Ltd is registered under Other building completion and finishing (SIC 43390).
How old is A1 UK Builders Ltd?
A1 UK Builders Ltd was incorporated on 8 June 2020, 6 years ago.
What is the penalty if A1 UK Builders 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 UK Builders 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.