- Companies
- Civil engineering
- Henfield
- N Seal Limited
N Seal Limited
- Company number
- 06877559
- Incorporated
- 15 Apr 200917 years trading
- Registered office
- Myrtle House, High Street, Henfield, West Sussex, BN5 9DA
- Nature of business
- Construction of other civil engineering projects n.e.c.; Site preparation
N Seal Limited is a 17-year-old private limited company registered in Henfield, company number 06877559, one of the UK's civil engineering contractors. Its next accounts are due at Companies House on 31 January 2027, and the CT600 for the period to 30 April 2026 is due at HMRC on 30 April 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 down £4,729 (-208.4%) on the year before, to -£2,460.
- Net assets rose in 5 of 9 year-on-year comparisons on record.
- Current assets of £13K against £23K owed within a year: 0.6 times cover.
- 1 employee on average during the year.
- Balance sheets on record for 10 years, 2016 to 2025.
Net assets by year
| Year end | Net assets | Cash | Current assets | Owed within a year | Employees |
|---|---|---|---|---|---|
| 30 Apr 2025 | -£2,460 | £12K | £13K | £23K | 1 |
| 30 Apr 2024 | £2,269 | £6,820 | £13K | £21K | 1 |
| 30 Apr 2023 | £11K | £23K | £31K | £27K | 1 |
| 30 Apr 2022 | £18K | £35K | £47K | £38K | 1 |
| 30 Apr 2021 | £18K | £36K | £52K | £47K | 1 |
| 30 Apr 2020 | £17K | £27K | £31K | £31K | 1 |
| 30 Apr 2019 | £12K | £707 | £42K | £39K | 1 |
| 30 Apr 2018 | £23K | £37K | £62K | £49K | 1 |
| 30 Apr 2017 | £14K | £18K | £47K | £46K | 1 |
| 30 Apr 2016 | £301 | £6,502 | £24K | £33K |
Where N Seal Limited is registered
The registered office is in Henfield (BN5), in the Horsham local authority area, South East. Show BN5 9DA on a map.
Other trade companies in BN5
- Avro Developments LtdProperty developers
- J Group Construction LimitedSpecialist contractors
- Northumberland 21 LimitedSpecialist contractors
- Strachan Plant Services LtdMachinery repair and installation
- JC and Co Kitchen and Bathroom Specialist LtdInstallers
- 4B Homes LimitedProperty developers
- Southdowns Gutter Cleaning LtdCleaning companies
- Ces Fire & Electrical LimitedElectricians
Also registered at this address
10 other companies use the same registered office as N Seal Limited.
- Alpine Preservation LtdSpecialist contractors
- Maydean LimitedElectricians
- Michael Modlock LtdJoiners and carpenters
- MW Electrical Engineering LtdElectricians
- Rose Building Services LimitedProperty developers
- Serna Construction LtdBuilders
- Sussex Oak Structures LimitedJoiners and carpenters
- TPW Construction LtdBuilders
- Verde Homes LimitedProperty developers
- Verde Property Consultants LimitedProperty developers
What happens if N Seal 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 31 January 2027.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 1 Feb 2027 to 28 Feb 2027 | £150 |
| 1 to 3 months late | 1 Mar 2027 to 30 Apr 2027 | £375 |
| 3 to 6 months late | 1 May 2027 to 31 Jul 2027 | £750 |
| More than 6 months late | From 1 Aug 2027 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 May 2027 | £200 |
| 3 months late | 30 Jul 2027 | another £200 |
| 6 months late | 30 Oct 2027 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 30 Apr 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
- 06877559
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 15 April 2009 (17 years ago)
- Registered office
- Myrtle House, High Street, Henfield, West Sussex, BN5 9DA
- Nature of business
- Construction of other civil engineering projects n.e.c. (SIC 42990)
Site preparation (SIC 43120) - Year end
- 30 April (accounting reference date)
- Accounts type
- Total exemption (full)
- Last accounts made up to
- 30 April 2025
- Last confirmation statement
- 15 April 2026
Filing notes for civil engineering contractors
Civil engineering contractors usually carry plant and machinery, so capital allowances (the annual investment allowance and the main pool) do much of the work in the corporation tax computation.
Similar companies in Henfield
Other active civil engineering contractors registered in Henfield.
All civil engineering contractors in Henfield · All trades in Henfield · Civil engineering across the UK
Frequently asked questions
When are N Seal Limited's accounts due?
N Seal Limited's next accounts are due at Companies House by 31 January 2027 (in 110 days), covering the period to 30 April 2026.
When is N Seal Limited's CT600 due?
The CT600 for the period to 30 April 2026 is due at HMRC by 30 April 2027, 12 months after the period end. The corporation tax itself is payable earlier, by 1 February 2027.
Is N Seal Limited still trading?
N Seal 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 N Seal Limited do?
N Seal Limited is registered under Construction of other civil engineering projects n.e.c. (SIC 42990); Site preparation (SIC 43120).
How old is N Seal Limited?
N Seal Limited was incorporated on 15 April 2009, 17 years ago.
What is the penalty if N Seal 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 N Seal 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.