- Companies
- Plumbers and heating engineers
- Uckfield
- Seg South East Ltd
Seg South East Ltd
- Company number
- 16164481
- Incorporated
- 6 Jan 20251 year trading
- Registered office
- 38 Farriers Way, Uckfield, TN22 5BY
- Nature of business
- Plumbing, heat and air-conditioning installation
Seg South East Ltd is a 1-year-old private limited company registered in Uckfield, company number 16164481, one of 16 plumbing and heating companies in Uckfield. Companies House shows its accounts as overdue: they were due on 6 October 2026.
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.
Is this your company?
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Where Seg South East Ltd is registered
The registered office is in Uckfield (TN22), in the Wealden local authority area, South East. Show TN22 5BY on a map.
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What happens if Seg South East Ltd files late
If the accounts reach Companies House today, the late filing penalty is £150 (£300 if last year's accounts were also late). It rises at each step below.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 7 Oct 2026 to 6 Nov 2026 | £150 |
| 1 to 3 months late | 7 Nov 2026 to 6 Jan 2027 | £375 |
| 3 to 6 months late | 7 Jan 2027 to 6 Apr 2027 | £750 |
| More than 6 months late | From 7 Apr 2027 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Feb 2027 | £200 |
| 3 months late | 30 Apr 2027 | another £200 |
| 6 months late | 31 Jul 2027 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 31 Jan 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
- 16164481
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 6 January 2025 (1 year ago)
- Registered office
- 38 Farriers Way, Uckfield, TN22 5BY
- Nature of business
- Plumbing, heat and air-conditioning installation (SIC 43220)
- Year end
- 31 January (accounting reference date)
- Accounts type
- No accounts filed yet
- Last confirmation statement
- 5 January 2026
Filing notes for plumbing and heating companies
Plumbing and heating companies frequently work under CIS for main contractors and also directly for homeowners, so turnover can mix CIS and non-CIS income.
Similar companies in Uckfield
Other active plumbing and heating companies registered in Uckfield.
- Sureflow Solutions Ltd2009
- Sussex Stoves Limited2010
- T Stitt Plumbing & Heating Limited2004
- Village Plumbers Limited2010
- Warm Hearts Plumbing and Heating Ltd2020
- Watertight Plumbers Limited2003
- Youngs P&H Ltd2026
- B M Nesbitt Heating Ltd2019
All plumbing and heating companies in Uckfield · All trades in Uckfield · Plumbers and heating engineers across the UK
Frequently asked questions
When are Seg South East Ltd's accounts due?
Seg South East Ltd's accounts were due at Companies House on 6 October 2026 and the register shows them as overdue.
When is Seg South East 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 5 January 2026, due by 5 January 2027, and one for the period to 31 January 2026, due by 31 January 2027. Corporation tax is payable 9 months and 1 day after the end of each.
Is Seg South East Ltd still trading?
Seg South East Ltd is listed as active on the Companies House register (checked 13 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 Seg South East Ltd do?
Seg South East Ltd is registered under Plumbing, heat and air-conditioning installation (SIC 43220).
How old is Seg South East Ltd?
Seg South East Ltd was incorporated on 6 January 2025, 1 year ago.
What is the penalty if Seg South East 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 Seg South East Ltd on Companies House for filed documents, officers and the full history.
Based on the Companies House register (snapshot 1 Oct 2026, rechecked 13 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.