- Companies
- Installers
- Dagenham
- Mercury Insulations Ltd
Mercury Insulations Ltd
- Company number
- 14798847
- Incorporated
- 13 Apr 20233 years trading
- Registered office
- 15 Langley Gardens, Dagenham, RM9 4RR
- Nature of business
- Other construction installation
Mercury Insulations Ltd is a 3-year-old private limited company registered in Dagenham, company number 14798847, one of 96 installation companies (insulation, lifts, shutters and similar) in Dagenham. Its next accounts are due at Companies House on 31 January 2028, and the CT600 for the period to 30 April 2027 is due at HMRC on 30 April 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 up £57K on the year before, to £63K.
- Current assets of £26K against £3,719 owed within a year: 7.0 times cover.
- 2 employees on average during the year.
- Balance sheets on record for 3 years, 2024 to 2026.
Net assets by year
| Year end | Net assets | Cash | Current assets | Owed within a year | Employees |
|---|---|---|---|---|---|
| 30 Apr 2026 | £63K | £26K | £3,719 | 2 | |
| 30 Apr 2025 | £5,573 | £14K | £34K | 2 | |
| 30 Apr 2024 | £9,472 | £3,964 | £33K | 2 |
Where Mercury Insulations Ltd is registered
The registered office is in Dagenham (RM9), in the Barking and Dagenham local authority area, London. Show RM9 4RR on a map.
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What happens if Mercury Insulations 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 January 2028.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 1 Feb 2028 to 29 Feb 2028 | £150 |
| 1 to 3 months late | 1 Mar 2028 to 30 Apr 2028 | £375 |
| 3 to 6 months late | 1 May 2028 to 31 Jul 2028 | £750 |
| More than 6 months late | From 1 Aug 2028 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 May 2028 | £200 |
| 3 months late | 30 Jul 2028 | another £200 |
| 6 months late | 30 Oct 2028 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 30 Apr 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
- 14798847
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 13 April 2023 (3 years ago)
- Registered office
- 15 Langley Gardens, Dagenham, RM9 4RR
- Nature of business
- Other construction installation (SIC 43290)
- Year end
- 30 April (accounting reference date)
- Accounts type
- Micro-entity
- Last accounts made up to
- 30 April 2026
- Last confirmation statement
- 12 April 2026
- Previous names
- Dna Insulations Ltd (until 26 Jun 2023)
Filing notes for installation companies (insulation, lifts, shutters and similar)
Installation companies (insulation, lifts, shutters, solar and similar) often buy stock and equipment up front, so stock at the year end and capital allowances both affect the tax bill.
Similar companies in Dagenham
Other active installation companies (insulation, lifts, shutters and similar) registered in Dagenham.
- N2Z Limited2020
- Nandha’S Construction Limited2026
- Narmy Insulations Limited2014
- Nature Breeze Interiors Limited2024
- Naz MD Builders Ltd2024
- Nikolaypp89 Ltd2020
- Nolm Limited2021
- Number1 Developers Ltd2023
All installation companies (insulation, lifts, shutters and similar) in Dagenham · All trades in Dagenham · Installers across the UK
Frequently asked questions
When are Mercury Insulations Ltd's accounts due?
Mercury Insulations Ltd's next accounts are due at Companies House by 31 January 2028 (in 475 days), covering the period to 30 April 2027.
When is Mercury Insulations Ltd's CT600 due?
The CT600 for the period to 30 April 2027 is due at HMRC by 30 April 2028, 12 months after the period end. The corporation tax itself is payable earlier, by 1 February 2028.
Is Mercury Insulations Ltd still trading?
Mercury Insulations 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 Mercury Insulations Ltd do?
Mercury Insulations Ltd is registered under Other construction installation (SIC 43290).
How old is Mercury Insulations Ltd?
Mercury Insulations Ltd was incorporated on 13 April 2023, 3 years ago.
What is the penalty if Mercury Insulations 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 Mercury Insulations 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.