- Companies
- Machinery repair and installation
- Hull
- Seal-Tight Ltd
Seal-Tight Ltd
- Company number
- 16496258
- Incorporated
- 4 Jun 20251 year trading
- Registered office
- 31 18TH Avenue, Hull, HU6 9JN
- Nature of business
- Repair of other equipment; Construction of other civil engineering projects n.e.c.
Seal-Tight Ltd is a 1-year-old private limited company registered in Hull, company number 16496258, one of 185 machinery repair and installation companies in Hull. Its next accounts are due at Companies House on 4 March 2027, and its first CT600 is due at HMRC on 3 June 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 Seal-Tight Ltd is registered
The registered office is in Hull (HU6), in the Kingston upon Hull, City of local authority area, Yorkshire and The Humber. Show HU6 9JN on a map.
Other trade companies in HU6
- Prestige Hull Tyre LtdMechanics and garages
- Shirya Trading & Investment LtdMotor traders
- Catering Journey LimitedMachinery repair and installation
- Ari’S Tyres LtdMechanics and garages
- Hand Car Wash at Morrisons LimitedMechanics and garages
- Ar Estates Holdings LtdProperty developers
- Krystal Clear Minds LtdCleaning companies
- Vlora Maintenance LimitedPlumbers and heating engineers
What happens if Seal-Tight 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 4 March 2027.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 5 Mar 2027 to 4 Apr 2027 | £150 |
| 1 to 3 months late | 5 Apr 2027 to 4 Jun 2027 | £375 |
| 3 to 6 months late | 5 Jun 2027 to 4 Sep 2027 | £750 |
| More than 6 months late | From 5 Sep 2027 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Jul 2027 | £200 |
| 3 months late | 30 Sep 2027 | another £200 |
| 6 months late | 30 Dec 2027 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 30 Jun 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
- 16496258
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 4 June 2025 (1 year ago)
- Registered office
- 31 18TH Avenue, Hull, HU6 9JN
- Nature of business
- Repair of other equipment (SIC 33190)
Construction of other civil engineering projects n.e.c. (SIC 42990) - Year end
- 30 June (accounting reference date)
- Accounts type
- No accounts filed yet
- Last confirmation statement
- 3 June 2026
Filing notes for machinery repair and installation companies
Machinery repair and installation companies often carry parts stock and specialist tools, and many work on contracts that span the year end.
Similar companies in Hull
Other active machinery repair and installation companies registered in Hull.
- Selkirk Mechanical Handling Limited1996
- Shaffi Blade Technician Ltd2026
- Shaun Williamson Limited2025
- SJM Metal Works Limited2023
- SLB Mechanical Services Ltd2020
- SM Electrical Group Ltd2026
- Smart Garage Equipment Services Limited2011
- Space Due Ltd2019
All machinery repair and installation companies in Hull · All trades in Hull · Machinery repair and installation across the UK
Frequently asked questions
When are Seal-Tight Ltd's accounts due?
Seal-Tight Ltd's next accounts are due at Companies House by 4 March 2027 (in 142 days), covering the period to 30 June 2026.
When is Seal-Tight 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 3 June 2026, due by 3 June 2027, and one for the period to 30 June 2026, due by 30 June 2027. Corporation tax is payable 9 months and 1 day after the end of each.
Is Seal-Tight Ltd still trading?
Seal-Tight 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 Seal-Tight Ltd do?
Seal-Tight Ltd is registered under Repair of other equipment (SIC 33190); Construction of other civil engineering projects n.e.c. (SIC 42990).
How old is Seal-Tight Ltd?
Seal-Tight Ltd was incorporated on 4 June 2025, 1 year ago.
What is the penalty if Seal-Tight 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 Seal-Tight 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.