- Companies
- Finishing trades
- Grays
- Alpha Sealant Ltd
Alpha Sealant Ltd
- Company number
- 12716309
- Incorporated
- 3 Jul 20206 years trading
- Registered office
- 57 Southend Road, 57 Southend Road, Grays, Essex, RM17 5NL
- Nature of business
- Other building completion and finishing
Alpha Sealant Ltd is a 6-year-old private limited company registered in Grays, company number 12716309, one of 102 building finishing companies in Grays. Its next accounts are due at Companies House on 31 December 2026, and the CT600 for the period to 31 March 2026 is due at HMRC on 31 March 2027.
Key dates
Worked out from the year end and filing history on the Companies House register.
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Finances
From each year's balance sheet filed at Companies House. Small companies do not have to publish turnover or profit, so these are balance sheet figures.
- Net assets up £3,592 (+4.6%) on the year before, to £82K.
- Net assets rose in 3 of 4 year-on-year comparisons on record.
- Current assets of £130K against £82K owed within a year: 1.6 times cover.
- 4 employees on average, down from 6 the year before.
- Balance sheets on record for 5 years, 2021 to 2025.
Net assets by year
| Year end | Net assets | Cash | Current assets | Owed within a year | Employees |
|---|---|---|---|---|---|
| 31 Mar 2025 | £82K | £130K | £82K | 4 | |
| 31 Mar 2024 | £79K | £49K | £18K | 6 | |
| 31 Mar 2023 | £99K | £94K | £21K | 4 | |
| 31 Mar 2022 | £49K | £79K | £43K | 3 | |
| 31 Mar 2021 | £2,259 | £1,348 | £21K | £24K | 2 |
Where Alpha Sealant Ltd is registered
The registered office is in Grays (RM17), in the Thurrock local authority area, East of England. Show RM17 5NL on a map.
Other trade companies in RM17
- JR Home Improvement LtdBuilders
- United Engines LtdMechanics and garages
- Amitab Mechanic LtdMechanics and garages
- NHF Property Solutions LtdElectricians
- DMCG LtdElectricians
- Chris Bell Plumbing Services LtdPlumbers and heating engineers
- United Prompt Solutions LtdMachinery repair and installation
- Countryside Building & Developments LtdCivil engineering
Shared registered office
141 companies on our pages use this registered office address. An address shared this widely is usually an accountant's office or a company formation agent's service address, not where the business trades from.
What happens if Alpha Sealant 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 31 December 2026.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 1 Jan 2027 to 31 Jan 2027 | £150 |
| 1 to 3 months late | 1 Feb 2027 to 31 Mar 2027 | £375 |
| 3 to 6 months late | 1 Apr 2027 to 30 Jun 2027 | £750 |
| More than 6 months late | From 1 Jul 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
- 12716309
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 3 July 2020 (6 years ago)
- Registered office
- 57 Southend Road, 57 Southend Road, Grays, Essex, RM17 5NL
- Nature of business
- Other building completion and finishing (SIC 43390)
- Year end
- 31 March (accounting reference date)
- Accounts type
- Micro-entity
- Last accounts made up to
- 31 March 2025
- Last confirmation statement
- 3 July 2026
Filing notes for building finishing companies
Finishing trade companies cover a wide range of work. Most are micro-entities with simple accounts and a straightforward CT600.
Similar companies in Grays
Other active building finishing companies registered in Grays.
- Andrius Constructions Limited2020
- Ar Contractors Ltd2013
- As & KD Building Services Ltd2022
- Awestert Ltd2019
- Balint Group Ltd2022
- Brother Projects Ltd2019
- Caterpillar Developments Ltd2024
- Chekka & Chakka Limited2025
All building finishing companies in Grays · All trades in Grays · Finishing trades across the UK
Frequently asked questions
When are Alpha Sealant Ltd's accounts due?
Alpha Sealant Ltd's next accounts are due at Companies House by 31 December 2026 (in 79 days), covering the period to 31 March 2026.
When is Alpha Sealant Ltd's CT600 due?
The CT600 for the period to 31 March 2026 is due at HMRC by 31 March 2027, 12 months after the period end. The corporation tax itself is payable earlier, by 1 January 2027.
Is Alpha Sealant Ltd still trading?
Alpha Sealant 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 Alpha Sealant Ltd do?
Alpha Sealant Ltd is registered under Other building completion and finishing (SIC 43390).
How old is Alpha Sealant Ltd?
Alpha Sealant Ltd was incorporated on 3 July 2020, 6 years ago.
What is the penalty if Alpha Sealant 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 Alpha Sealant 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.