- Companies
- Finishing trades
- South Croydon
- Key One Services Ltd
Key One Services Ltd
- Company number
- 11843709
- Incorporated
- 25 Feb 20197 years trading
- Registered office
- 39 the Windings, South Croydon, CR2 0HW
- Nature of business
- Other building completion and finishing; Buying and selling of own real estate; Other letting and operating of own or leased real estate; Management of real estate on a fee or contract basis
Key One Services Ltd is a 7-year-old private limited company registered in South Croydon, company number 11843709, one of 44 building finishing companies in South Croydon. Its next accounts are due at Companies House on 30 November 2026, and the CT600 for the period to 28 February 2026 is due at HMRC on 28 February 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 Key One Services LtdOr 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 down £1,863 (-1.2%) on the year before, to £148K.
- Net assets rose in 2 of 6 year-on-year comparisons on record.
- Current assets of £71K against £4,597 owed within a year: more than 10 times cover.
- No employees reported for the latest year (directors are often not counted as employees).
- Balance sheets on record for 7 years, 2020 to 2025.
Net assets by year
| Year end | Net assets | Cash | Current assets | Owed within a year | Employees |
|---|---|---|---|---|---|
| 28 Feb 2025 | £148K | £71K | £4,597 | 0 | |
| 29 Feb 2024 | £150K | £155K | £4,586 | 1 | |
| 28 Feb 2023 | £134K | £139K | £5,082 | 1 | |
| 28 Feb 2022 | £166K | £173K | £6,773 | 1 | |
| 28 Feb 2021 | £176K | £256K | £30K | 1 | |
| 29 Feb 2020 | £120K | £244K | £123K | 1 | |
| 28 Feb 2020 | £120K | £244K | £123K | 1 |
Where Key One Services Ltd is registered
The registered office is in South Croydon (CR2), in the Croydon local authority area, London. Show CR2 0HW on a map.
Other trade companies in CR2
- Noviolux LtdPainters and decorators
- Ottorigo LimitedInstallers
- DRJ Electricals-Gas LtdElectricians
- The New Drivers Shop LtdMotor traders
- Knoxford Plumbing & Heating LtdPlumbers and heating engineers
- Frontline Design & Build LtdBuilders
- Vellarowheels LtdMotor traders
- Lady Ace Cleaning Co LimitedCleaning companies
Also registered at this address
1 other company uses the same registered office as Key One Services Ltd.
- Prem Air Engineering LtdInstallers
What happens if Key One Services 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 30 November 2026.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 1 Dec 2026 to 31 Dec 2026 | £150 |
| 1 to 3 months late | 1 Jan 2027 to 28 Feb 2027 | £375 |
| 3 to 6 months late | 1 Mar 2027 to 31 May 2027 | £750 |
| More than 6 months late | From 1 Jun 2027 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Mar 2027 | £200 |
| 3 months late | 28 May 2027 | another £200 |
| 6 months late | 28 Aug 2027 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 28 Feb 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
- 11843709
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 25 February 2019 (7 years ago)
- Registered office
- 39 the Windings, South Croydon, CR2 0HW
- Nature of business
- Other building completion and finishing (SIC 43390)
Buying and selling of own real estate (SIC 68100)
Other letting and operating of own or leased real estate (SIC 68209)
Management of real estate on a fee or contract basis (SIC 68320) - Year end
- 28 February (accounting reference date)
- Accounts type
- Micro-entity
- Last accounts made up to
- 28 February 2025
- Last confirmation statement
- 24 February 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 South Croydon
Other active building finishing companies registered in South Croydon.
- Kopka Building Services Ltd2023
- Loft Haven Ltd2025
- Mastic Man Services Ltd2018
- Miller Bros Ltd2014
- MLR Engineering Works Limited2020
- Mussani Limited2013
- Neste Ltd2025
- NN Floor Sanding Ltd2025
All building finishing companies in South Croydon · All trades in South Croydon · Finishing trades across the UK
Frequently asked questions
When are Key One Services Ltd's accounts due?
Key One Services Ltd's next accounts are due at Companies House by 30 November 2026 (in 48 days), covering the period to 28 February 2026.
When is Key One Services Ltd's CT600 due?
The CT600 for the period to 28 February 2026 is due at HMRC by 28 February 2027, 12 months after the period end. The corporation tax itself is payable earlier, by 1 December 2026.
Is Key One Services Ltd still trading?
Key One Services 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 Key One Services Ltd do?
Key One Services Ltd is registered under Other building completion and finishing (SIC 43390); Buying and selling of own real estate (SIC 68100); Other letting and operating of own or leased real estate (SIC 68209); Management of real estate on a fee or contract basis (SIC 68320).
How old is Key One Services Ltd?
Key One Services Ltd was incorporated on 25 February 2019, 7 years ago.
What is the penalty if Key One Services 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 Key One Services 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.