- Companies
- Specialist contractors
- Lowestoft
- R & G Cooper Engineering Limited
R & G Cooper Engineering Limited
- Company number
- 04656721
- Incorporated
- 5 Feb 200323 years trading
- Registered office
- R&G Cooper Engineering Ltd, Mobbs Way, Lowestoft, NR32 3AL
- Nature of business
- Other specialised construction activities n.e.c.
R & G Cooper Engineering Limited is a 23-year-old private limited company registered in Lowestoft, company number 04656721, one of 51 specialist construction companies in Lowestoft. 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 down £52K (-86.3%) on the year before, to £8,197.
- Net assets rose in 1 of 3 year-on-year comparisons on record.
- Current assets of £11K against £2,800 owed within a year: 3.9 times cover.
- 2 employees on average during the year.
- Balance sheets on record for 4 years, 2022 to 2025.
Net assets by year
| Year end | Net assets | Cash | Current assets | Owed within a year | Employees |
|---|---|---|---|---|---|
| 30 Jun 2025 | £8,197 | £11K | £2,800 | 2 | |
| 30 Jun 2024 | £60K | £255 | £64K | £4,316 | 2 |
| 30 Jun 2023 | £2.5M | £29K | £2.6M | £162K | 2 |
| 30 Jun 2022 | £2.2M | £80K | £3.5M | £1.2M | 21 |
Where R & G Cooper Engineering Limited is registered
The registered office is in Lowestoft (NR32), in the East Suffolk local authority area, East of England. Show NR32 3AL on a map.
Other trade companies in NR32
- Ezra Access Solutions LtdScaffolders
- SLC Plumbing LtdPlumbers and heating engineers
- Yare Developments LimitedProperty developers
- RLB Cleaning and Maintenance LtdFacilities management
- Tech Sparrow LtdMachinery repair and installation
- A J Knights LtdProperty developers
- Cool Beans Air LtdPlumbers and heating engineers
- HR Electrical (East Anglia) LtdElectricians
What happens if R & G Cooper Engineering 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 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
- 04656721
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 5 February 2003 (23 years ago)
- Registered office
- R&G Cooper Engineering Ltd, Mobbs Way, Lowestoft, NR32 3AL
- 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
- 5 February 2026
- Charges (mortgages)
- 0 outstanding of 3 registered
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 Lowestoft
Other active specialist construction companies registered in Lowestoft.
- RB Engineering Solutions Limited2018
- Rob Naunton Fabrication & Inspection Services Limited2015
- Seam Limited2001
- Sharp Contract Experts and Training Ltd2026
- Shepherds NDT Ltd2023
- SJD Engineering Limited2017
- SLR Piping Services Limited2015
- Spraytherm Ltd2023
All specialist construction companies in Lowestoft · All trades in Lowestoft · Specialist contractors across the UK
Frequently asked questions
When are R & G Cooper Engineering Limited's accounts due?
R & G Cooper Engineering Limited's next accounts are due at Companies House by 31 March 2027 (in 169 days), covering the period to 30 June 2026.
When is R & G Cooper Engineering Limited'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 R & G Cooper Engineering Limited still trading?
R & G Cooper Engineering 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 R & G Cooper Engineering Limited do?
R & G Cooper Engineering Limited is registered under Other specialised construction activities n.e.c. (SIC 43999).
How old is R & G Cooper Engineering Limited?
R & G Cooper Engineering Limited was incorporated on 5 February 2003, 23 years ago.
What is the penalty if R & G Cooper Engineering 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 R & G Cooper Engineering 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.