- Companies
- Specialist contractors
- London
- Delta Doors Installation Ltd
Delta Doors Installation Ltd
- Company number
- 16334148
- Incorporated
- 21 Mar 20251 year trading
- Registered office
- 42 Napier Road, London, N17 6YE
- Nature of business
- Other specialised construction activities n.e.c.
Delta Doors Installation Ltd is a 1-year-old private limited company registered in London, company number 16334148, one of 4,318 specialist construction companies in London. Its next accounts are due at Companies House on 21 December 2026, and its first CT600 is due at HMRC on 20 March 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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Where Delta Doors Installation Ltd is registered
The registered office is in London (N17), in the Haringey local authority area, London. Show N17 6YE on a map.
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What happens if Delta Doors Installation 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 21 December 2026.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 22 Dec 2026 to 21 Jan 2027 | £150 |
| 1 to 3 months late | 22 Jan 2027 to 21 Mar 2027 | £375 |
| 3 to 6 months late | 22 Mar 2027 to 21 Jun 2027 | £750 |
| More than 6 months late | From 22 Jun 2027 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Apr 2027 | £200 |
| 3 months late | 30 Jun 2027 | another £200 |
| 6 months late | 30 Sep 2027 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 31 Mar 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
- 16334148
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 21 March 2025 (1 year ago)
- Registered office
- 42 Napier Road, London, N17 6YE
- Nature of business
- Other specialised construction activities n.e.c. (SIC 43999)
- Year end
- 31 March (accounting reference date)
- Accounts type
- No accounts filed yet
- Last confirmation statement
- 20 March 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 London
Other active specialist construction companies registered in London.
- Delta P Engineering Limited2005
- Delwal H M Ltd2025
- Demi Steel Fab Limited2024
- Dencoproperty Ltd2026
- Dendale Construction Limited2001
- Denham Sealants Limited2012
- Denholme Consultancy Limited2024
- Denis I&S Ltd2021
All specialist construction companies in London · All trades in London · Specialist contractors across the UK
Frequently asked questions
When are Delta Doors Installation Ltd's accounts due?
Delta Doors Installation Ltd's next accounts are due at Companies House by 21 December 2026 (in 69 days), covering the period to 31 March 2026.
When is Delta Doors Installation 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 20 March 2026, due by 20 March 2027, and one for the period to 31 March 2026, due by 31 March 2027. Corporation tax is payable 9 months and 1 day after the end of each.
Is Delta Doors Installation Ltd still trading?
Delta Doors Installation 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 Delta Doors Installation Ltd do?
Delta Doors Installation Ltd is registered under Other specialised construction activities n.e.c. (SIC 43999).
How old is Delta Doors Installation Ltd?
Delta Doors Installation Ltd was incorporated on 21 March 2025, 1 year ago.
What is the penalty if Delta Doors Installation 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 Delta Doors Installation 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.