- Companies
- Installers
- East Ham
- GN Ductwork Limited
GN Ductwork Limited
- Company number
- 17173813
- Incorporated
- 22 Apr 2026
- Registered office
- 4 A Roman Road, East Ham, London, E6 3RX
- Nature of business
- Other construction installation
GN Ductwork Limited is a newly incorporated private limited company registered in East Ham, company number 17173813, one of 15 installation companies (insulation, lifts, shutters and similar) in East Ham. Its next accounts are due at Companies House on 22 January 2028, and its first CT600 is due at HMRC on 21 April 2028.
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 GN Ductwork Limited is registered
The registered office is in East Ham (E6), in the Newham local authority area, London. Show E6 3RX on a map.
Other trade companies in E6
- Dabostech LtdProperty developers
- Ryanlyn LimitedCleaning companies
- Benjamin's Decorating Services LimitedSpecialist contractors
- Wexstons C LtdRepair services
- Ramya Motors LtdMotor traders
- Nil Art Decor LtdBuilders
- Ari & Bleri LtdBuilders
- Gorgos Electrical Services LtdElectricians
Also registered at this address
2 other companies use the same registered office as GN Ductwork Limited.
- PJ Electrification Support LtdElectricians
- WMS Electrical Services LimitedElectricians
What happens if GN Ductwork 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 22 January 2028.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 23 Jan 2028 to 22 Feb 2028 | £150 |
| 1 to 3 months late | 23 Feb 2028 to 22 Apr 2028 | £375 |
| 3 to 6 months late | 23 Apr 2028 to 22 Jul 2028 | £750 |
| More than 6 months late | From 23 Jul 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
- 17173813
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 22 April 2026
- Registered office
- 4 A Roman Road, East Ham, London, E6 3RX
- Nature of business
- Other construction installation (SIC 43290)
- Year end
- 30 April (accounting reference date)
- Accounts type
- No accounts filed yet
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 East Ham
Other active installation companies (insulation, lifts, shutters and similar) registered in East Ham.
- Jackson Brickwork and Construction Limited2026
- Koregas Limited2011
- L D Nicholls Limited2026
- London Con Ltd2022
- Mastergas Engineering Services Ltd2020
- NJP Construction Services Limited2026
- On Point Rigging Limited2022
- Platinum Above Ground Pools Limited2026
All installation companies (insulation, lifts, shutters and similar) in East Ham · All trades in East Ham · Installers across the UK
Frequently asked questions
When are GN Ductwork Limited's accounts due?
GN Ductwork Limited's next accounts are due at Companies House by 22 January 2028 (in 467 days), covering the period to 30 April 2027.
When is GN Ductwork Limited's CT600 due?
The first accounts cover more than 12 months, so there are two Company Tax Returns: one for the 12 months to 21 April 2027, due by 21 April 2028, and one for the period to 30 April 2027, due by 30 April 2028. Corporation tax is payable 9 months and 1 day after the end of each.
Is GN Ductwork Limited still trading?
GN Ductwork 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 GN Ductwork Limited do?
GN Ductwork Limited is registered under Other construction installation (SIC 43290).
How old is GN Ductwork Limited?
GN Ductwork Limited was incorporated on 22 April 2026, less than a year ago.
What is the penalty if GN Ductwork 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 GN Ductwork 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.