Three3One Ltd
- Company number
- 11194001
- Incorporated
- 7 Feb 20188 years trading
- Registered office
- 39 Thames Street, Sunbury-on-Thames, TW16 5QF
- Nature of business
- Plumbing, heat and air-conditioning installation
Three3One Ltd is a 8-year-old private limited company registered in Sunbury-on-Thames, company number 11194001, one of 20 plumbing and heating companies in Sunbury-on-Thames. 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.
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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 £33K (+39.5%) on the year before, to £118K.
- Net assets rose in 5 of 6 year-on-year comparisons on record.
- Current assets of £79K against £121K owed within a year: 0.7 times cover.
- 2 employees on average during the year.
- Balance sheets on record for 7 years, 2019 to 2025.
Net assets by year
| Year end | Net assets | Cash | Current assets | Owed within a year | Employees |
|---|---|---|---|---|---|
| 28 Feb 2025 | £118K | £77K | £79K | £121K | 2 |
| 29 Feb 2024 | £85K | £9,378 | £16K | £84K | 2 |
| 28 Feb 2023 | £62K | £32K | £34K | £140K | 2 |
| 28 Feb 2022 | £54K | £37K | £37K | £97K | 2 |
| 28 Feb 2021 | £26K | £32K | £191K | £178K | 2 |
| 29 Feb 2020 | £15K | £37K | £38K | £30K | 2 |
| 28 Feb 2019 | £15K | £24K | £24K | £11K | 2 |
Who runs and owns Three3One Ltd
From the Companies House register. Individuals are shown by initials only; the full register is on Companies House.
Officer
| Name | Role | Appointed |
|---|---|---|
| T*** C*** | Director | Feb 2018 |
Person with significant control
Charges (secured borrowing)
1 of 1 registered charge is outstanding. A charge is security a lender takes over a company's assets, typically for a loan, mortgage or asset finance.
| Lender | Status | Registered |
|---|---|---|
| HSBC UK Bank PLC | Outstanding | Apr 2021 |
Where Three3One Ltd is registered
The registered office is in Sunbury-on-Thames (TW16), in the Spelthorne local authority area, South East. Show TW16 5QF on a map.
Other trade companies in TW16
- Top Lodge LtdProperty developers
- Sajaha Properties LimitedProperty developers
- Cineco Holdings LimitedSpecialist contractors
- Keyturn Clean LtdCleaning companies
- VM Conservatory Transformation LtdBuilders
- Nova Property Solutions LtdPainters and decorators
- Lee’S Home Improvements LtdBuilders
- Rapid Home Srvices LtdFinishing trades
What happens if Three3One 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
- 11194001
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 7 February 2018 (8 years ago)
- Registered office
- 39 Thames Street, Sunbury-on-Thames, TW16 5QF
- Nature of business
- Plumbing, heat and air-conditioning installation (SIC 43220)
- Year end
- 28 February (accounting reference date)
- Accounts type
- Total exemption (full)
- Last accounts made up to
- 28 February 2025
- Last confirmation statement
- 28 November 2025
- Charges (mortgages)
- 1 outstanding of 1 registered
- Previous names
- Jamesconnor Ltd (until 25 Jul 2019)
Filing notes for plumbing and heating companies
Plumbing and heating companies frequently work under CIS for main contractors and also directly for homeowners, so turnover can mix CIS and non-CIS income.
Similar companies in Sunbury-on-Thames
Other active plumbing and heating companies registered in Sunbury-on-Thames.
- 247 London Plumbers Limited2025
- Air HVAC Ltd2024
- Direct Heating Specialists Ltd2016
- Ecotec Installations Ltd2023
- Flush Plumbing & Heating Limited2014
- Gas Fix 2.0 Ltd2024
- JC'S Quality Consulting Ltd2010
- KVL Plumbing Ltd2011
All plumbing and heating companies in Sunbury-on-Thames · All trades in Sunbury-on-Thames · Plumbers and heating engineers across the UK
Frequently asked questions
When are Three3One Ltd's accounts due?
Three3One Ltd's next accounts are due at Companies House by 30 November 2026 (in 49 days), covering the period to 28 February 2026.
When is Three3One 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 Three3One Ltd still trading?
Three3One 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 Three3One Ltd do?
Three3One Ltd is registered under Plumbing, heat and air-conditioning installation (SIC 43220).
How old is Three3One Ltd?
Three3One Ltd was incorporated on 7 February 2018, 8 years ago.
Who runs Three3One Ltd?
Three3One Ltd has 1 active director, the longest-serving appointed in Feb 2018. Their names and service addresses are on the Companies House register.
Who owns Three3One Ltd?
One person or company has significant control of Three3One Ltd: an individual (owns 75% or more of the shares).
What is the penalty if Three3One 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 Three3One 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.