- Companies
- Specialist contractors
- Deal
- C1 Services Limited
C1 Services Limited
- Company number
- 13311125
- Incorporated
- 3 Apr 20215 years trading
- Registered office
- 49 ST Leonards Road, ST. Leonards Road, Deal, CT14 9AU
- Nature of business
- Other specialised construction activities n.e.c.; Management consultancy activities other than financial management; Other service activities n.e.c.
C1 Services Limited is a 5-year-old private limited company registered in Deal, company number 13311125, one of 22 specialist construction companies in Deal. 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.
Is this your company?
File the accounts to Companies House and the CT600 to HMRC yourself with A.X.E.L Filing. One set of questions, both filings, £49 flat. No accountant, no subscription.
File for C1 Services LimitedOr get a reminder before each deadline
Free. We email you 60, 30, 14, 7 and 1 days before the accounts, CT600 and confirmation statement are due. Unsubscribe in one click.
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 £7,177 (+11.8%) on the year before, to £68K.
- Net assets rose in 3 of 4 year-on-year comparisons on record.
- Current assets of £65K against £2,504 owed within a year: more than 10 times cover.
- 1 employee on average during the year.
- 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 |
|---|---|---|---|---|---|
| 30 Apr 2025 | £68K | £65K | £2,504 | 1 | |
| 30 Apr 2024 | £61K | £80K | £19K | 1 | |
| 30 Apr 2023 | £68K | £76K | £8,383 | 1 | |
| 30 Apr 2022 | £100 | £1,005 | £905 | 1 | |
| 30 Apr 2021 | £0 | £0 | £0 | 0 |
Where C1 Services Limited is registered
The registered office is in Deal (CT14), in the Dover local authority area, South East. Show CT14 9AU on a map.
Other trade companies in CT14
- Victoria&Alex Construction LtdInstallers
- Shakticola Consultants LimitedProperty developers
- A W Carpentry LtdJoiners and carpenters
- Lens Groundwork & Utilities LtdCivil engineering
- MBM Electrical Services (Deal) LtdElectricians
- SBG Brickwork & Construction LtdFinishing trades
- Morgan P Utilities LimitedCivil engineering
- Eclectic Collection LtdMechanics and garages
What happens if C1 Services 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
- 13311125
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 3 April 2021 (5 years ago)
- Registered office
- 49 ST Leonards Road, ST. Leonards Road, Deal, CT14 9AU
- Nature of business
- Other specialised construction activities n.e.c. (SIC 43999)
Management consultancy activities other than financial management (SIC 70229)
Other service activities n.e.c. (SIC 96090) - Year end
- 30 April (accounting reference date)
- Accounts type
- Micro-entity
- Last accounts made up to
- 30 April 2025
- Last confirmation statement
- 18 March 2026
Filing notes for specialist construction companies
Specialist contractors often work under CIS for main contractors. Retentions held back by the customer still count towards turnover once the work is done.
Similar companies in Deal
Other active specialist construction companies registered in Deal.
- Domotica Ltd2011
- G Mac Groundworks Ltd2025
- Inclusive Care Installations Limited2025
- Inclusive Care Solutions Limited2020
- Jamesbros Construction Ltd2024
- JTC Landscaping Ltd2024
- Kaylew Plant Training Services Ltd2025
- Kevin Garrett Solutions Limited2015
All specialist construction companies in Deal · All trades in Deal · Specialist contractors across the UK
Frequently asked questions
When are C1 Services Limited's accounts due?
C1 Services 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 C1 Services 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 C1 Services Limited still trading?
C1 Services 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 C1 Services Limited do?
C1 Services Limited is registered under Other specialised construction activities n.e.c. (SIC 43999); Management consultancy activities other than financial management (SIC 70229); Other service activities n.e.c. (SIC 96090).
How old is C1 Services Limited?
C1 Services Limited was incorporated on 3 April 2021, 5 years ago.
What is the penalty if C1 Services 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 C1 Services 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.