- Companies
- Installers
- Leigh-on-Sea
- Sealed Bros Ltd
Sealed Bros Ltd
- Company number
- 17249194
- Incorporated
- 29 May 2026
- Registered office
- 50 Broadway, Leigh-on-Sea, Essex, SS9 1AG
- Nature of business
- Other construction installation
Sealed Bros Ltd is a newly incorporated private limited company registered in Leigh-on-Sea, company number 17249194, one of 64 installation companies (insulation, lifts, shutters and similar) in Leigh-on-Sea. Its next accounts are due at Companies House on 29 February 2028, and its first CT600 is due at HMRC on 28 May 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 Sealed Bros Ltd is registered
The registered office is in Leigh-on-Sea (SS9), in the Southend-on-Sea local authority area, East of England. Show SS9 1AG on a map.
Other trade companies in SS9
- Cheap Locksmith Essex LtdRepair services
- Alexander Hall Real Estate LtdProperty developers
- Britannia Roofing & Dampproofing LtdRoofers
- Elite Build & Co (Essex) LtdBuilders
- High Lift Scaffold LimitedScaffolders
- Hill's Plumbing, Heating & Gas LtdPlumbers and heating engineers
- MTS Piling LimitedSpecialist contractors
- Install & Transport LimitedMachinery repair and installation
Also registered at this address
2 other companies use the same registered office as Sealed Bros Ltd.
- Airvertise Technologies LtdFinishing trades
- London Insulation Services LtdFinishing trades
What happens if Sealed Bros 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 29 February 2028.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 1 Mar 2028 to 31 Mar 2028 | £150 |
| 1 to 3 months late | 1 Apr 2028 to 31 May 2028 | £375 |
| 3 to 6 months late | 1 Jun 2028 to 31 Aug 2028 | £750 |
| More than 6 months late | From 1 Sep 2028 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Jun 2028 | £200 |
| 3 months late | 31 Aug 2028 | another £200 |
| 6 months late | 30 Nov 2028 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 31 May 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
- 17249194
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 29 May 2026
- Registered office
- 50 Broadway, Leigh-on-Sea, Essex, SS9 1AG
- Nature of business
- Other construction installation (SIC 43290)
- Year end
- 31 May (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 Leigh-on-Sea
Other active installation companies (insulation, lifts, shutters and similar) registered in Leigh-on-Sea.
- Searle Insulation Services Ltd2025
- Sic Building Services Limited2008
- Sim Groundwork’S Ltd2025
- Terrence James Construction Limited2021
- Thameside Fire Stopping Limited2013
- Thermo-Rend Ltd2023
- Thorpe Install Ltd2004
- Trojan Fire & Security Solutions Ltd2026
All installation companies (insulation, lifts, shutters and similar) in Leigh-on-Sea · All trades in Leigh-on-Sea · Installers across the UK
Frequently asked questions
When are Sealed Bros Ltd's accounts due?
Sealed Bros Ltd's next accounts are due at Companies House by 29 February 2028 (in 505 days), covering the period to 31 May 2027.
When is Sealed Bros 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 28 May 2027, due by 28 May 2028, and one for the period to 31 May 2027, due by 31 May 2028. Corporation tax is payable 9 months and 1 day after the end of each.
Is Sealed Bros Ltd still trading?
Sealed Bros 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 Sealed Bros Ltd do?
Sealed Bros Ltd is registered under Other construction installation (SIC 43290).
How old is Sealed Bros Ltd?
Sealed Bros Ltd was incorporated on 29 May 2026, less than a year ago.
What is the penalty if Sealed Bros 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 Sealed Bros 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.