- Companies
- Specialist contractors
- Blackburn
- Bart-N-Sons Civil Engineering Ltd
Bart-N-Sons Civil Engineering Ltd
- Company number
- 15767040
- Incorporated
- 7 Jun 20242 years trading
- Registered office
- Accounts Office, Cunliffe House Longsight Road, Langho, Blackburn, Lancashire, BB6 8AD
- Nature of business
- Other specialised construction activities n.e.c.
Bart-N-Sons Civil Engineering Ltd is a 2-year-old private limited company registered in Blackburn, company number 15767040, one of 53 specialist construction companies in Blackburn. 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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Financial snapshot, 2025
From the balance sheet at 30 June 2025, as filed at Companies House.
Where Bart-N-Sons Civil Engineering Ltd is registered
The registered office is in Blackburn (BB6), in the Ribble Valley local authority area, North West. Show BB6 8AD on a map.
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Also registered at this address
1 other company uses the same registered office as Bart-N-Sons Civil Engineering Ltd.
- Lynch Gas & Oil Heating Engineers LtdPlumbers and heating engineers
What happens if Bart-N-Sons Civil Engineering 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
- 15767040
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 7 June 2024 (2 years ago)
- Registered office
- Accounts Office, Cunliffe House Longsight Road, Langho, Blackburn, Lancashire, BB6 8AD
- Nature of business
- Other specialised construction activities n.e.c. (SIC 43999)
- Year end
- 30 June (accounting reference date)
- Accounts type
- Micro-entity
- Last accounts made up to
- 30 June 2025
- Last confirmation statement
- 6 June 2026
Filing notes for specialist construction companies
Specialist contractors often work under CIS for main contractors. Retentions held back by the customer still count towards turnover once the work is done.
Similar companies in Blackburn
Other active specialist construction companies registered in Blackburn.
- Blackburn Special Build Ltd2026
- CFS Renewables Ltd2026
- CMM Northwest Ltd2013
- Consultants & Specialist Surveyors Ltd2005
- Cre8 Contractors Limited2017
- Crush and Go Limited2021
- David Meyler Groundworks Ltd2015
- DLB Facilities Management Ltd2026
All specialist construction companies in Blackburn · All trades in Blackburn · Specialist contractors across the UK
Frequently asked questions
When are Bart-N-Sons Civil Engineering Ltd's accounts due?
Bart-N-Sons Civil Engineering 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 Bart-N-Sons Civil Engineering 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 Bart-N-Sons Civil Engineering Ltd still trading?
Bart-N-Sons Civil Engineering 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 Bart-N-Sons Civil Engineering Ltd do?
Bart-N-Sons Civil Engineering Ltd is registered under Other specialised construction activities n.e.c. (SIC 43999).
How old is Bart-N-Sons Civil Engineering Ltd?
Bart-N-Sons Civil Engineering Ltd was incorporated on 7 June 2024, 2 years ago.
What is the penalty if Bart-N-Sons Civil Engineering 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 Bart-N-Sons Civil Engineering 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.