- Companies
- Installers
- London
- Retrofit Grid Ltd
Retrofit Grid Ltd
- Company number
- 16470265
- Incorporated
- 23 May 20251 year trading
- Registered office
- First Floor Offices Saxonbury House, High Street Wanstead, London, E11 1QQ
- Nature of business
- Other construction installation
Retrofit Grid Ltd is a 1-year-old private limited company registered in London, company number 16470265, one of 2,278 installation companies (insulation, lifts, shutters and similar) in London. Its next accounts are due at Companies House on 23 February 2027, and its first CT600 is due at HMRC on 22 May 2027.
Key dates
This company has not filed accounts yet. First accounts are due 21 months after incorporation, and the first period can run longer than a year.
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Financial snapshot, 2026
From the balance sheet at 31 May 2026, as filed at Companies House.
Where Retrofit Grid Ltd is registered
The registered office is in London (E11), in the Redbridge local authority area, London. Show E11 1QQ on a map.
Other trade companies in E11
- Yvt 79 LtdBuilders
- Ayadi Services LimitedPlumbers and heating engineers
- Bensliman Services LimitedPlumbers and heating engineers
- Myhomerenew Ltd LtdPlasterers
- Velaron LtdProperty developers
- Hakk Technical Services LtdInstallers
- Meycarwash LtdCleaning companies
- Rose Ave LtdProperty developers
What happens if Retrofit Grid 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 23 February 2027.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 24 Feb 2027 to 23 Mar 2027 | £150 |
| 1 to 3 months late | 24 Mar 2027 to 23 May 2027 | £375 |
| 3 to 6 months late | 24 May 2027 to 23 Aug 2027 | £750 |
| More than 6 months late | From 24 Aug 2027 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Jun 2027 | £200 |
| 3 months late | 31 Aug 2027 | another £200 |
| 6 months late | 30 Nov 2027 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 31 May 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
- 16470265
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 23 May 2025 (1 year ago)
- Registered office
- First Floor Offices Saxonbury House, High Street Wanstead, London, E11 1QQ
- Nature of business
- Other construction installation (SIC 43290)
- Year end
- 31 May (accounting reference date)
- Accounts type
- No accounts filed yet
- Last confirmation statement
- 26 May 2026
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 London
Other active installation companies (insulation, lifts, shutters and similar) registered in London.
- Revamp Renovations Limited2023
- Reveal Refurbishments Ltd2025
- Revival Lifts Ltd2021
- Reygav Ltd2019
- RF LDN Limited2018
- RF Productions Ltd2023
- RFW Projects Ltd2026
- Rib Construction Management Services Ltd2020
All installation companies (insulation, lifts, shutters and similar) in London · All trades in London · Installers across the UK
Frequently asked questions
When are Retrofit Grid Ltd's accounts due?
Retrofit Grid Ltd's next accounts are due at Companies House by 23 February 2027 (in 133 days), covering the period to 31 May 2026.
When is Retrofit Grid Ltd's CT600 due?
The first accounts cover more than 12 months, so there are two Company Tax Returns: one for the 12 months to 22 May 2026, due by 22 May 2027, and one for the period to 31 May 2026, due by 31 May 2027. Corporation tax is payable 9 months and 1 day after the end of each.
Is Retrofit Grid Ltd still trading?
Retrofit Grid 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 Retrofit Grid Ltd do?
Retrofit Grid Ltd is registered under Other construction installation (SIC 43290).
How old is Retrofit Grid Ltd?
Retrofit Grid Ltd was incorporated on 23 May 2025, 1 year ago.
What is the penalty if Retrofit Grid 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 Retrofit Grid 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.