Sim-Air Ltd
- Company number
- 14478346
- Incorporated
- 11 Nov 20223 years trading
- Registered office
- 10 Beechmont Avenue, Virginia Water, GU25 4EY
- Nature of business
- Plumbing, heat and air-conditioning installation
Sim-Air Ltd is a 3-year-old private limited company registered in Virginia Water, company number 14478346, one of 5 plumbing and heating companies in Virginia Water. Its next accounts are due at Companies House on 31 August 2027, and the CT600 for the period to 30 November 2026 is due at HMRC on 30 November 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 unchanged on the year before, at £91K.
- 1 employee on average during the year.
- Balance sheets on record for 3 years, 2023 to 2025.
Net assets by year
| Year end | Net assets | Cash | Current assets | Owed within a year | Employees |
|---|---|---|---|---|---|
| 30 Nov 2025 | £91K | 1 | |||
| 30 Nov 2024 | £91K | 1 | |||
| 30 Nov 2023 | £11K | 0 |
Where Sim-Air Ltd is registered
The registered office is in Virginia Water (GU25), in the Runnymede local authority area, South East. Show GU25 4EY on a map.
Other trade companies in GU25
- D&G Traders UK LimitedFinishing trades
- Direct - Construction Group LtdBuilders
- West London Roof Care LtdRoofers
- Hi Level Roofing LtdRoofers
- Tranquility Keep LimitedProperty developers
- High Access Roofing LtdRoofers
- Solar Guard UK LtdCleaning companies
- High Access Scaffolding LtdScaffolders
What happens if Sim-Air 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 August 2027.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 1 Sep 2027 to 30 Sep 2027 | £150 |
| 1 to 3 months late | 1 Oct 2027 to 30 Nov 2027 | £375 |
| 3 to 6 months late | 1 Dec 2027 to 29 Feb 2028 | £750 |
| More than 6 months late | From 1 Mar 2028 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Dec 2027 | £200 |
| 3 months late | 29 Feb 2028 | another £200 |
| 6 months late | 30 May 2028 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 30 Nov 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
- 14478346
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 11 November 2022 (3 years ago)
- Registered office
- 10 Beechmont Avenue, Virginia Water, GU25 4EY
- Nature of business
- Plumbing, heat and air-conditioning installation (SIC 43220)
- Year end
- 30 November (accounting reference date)
- Accounts type
- Total exemption (full)
- Last accounts made up to
- 30 November 2025
- Last confirmation statement
- 10 November 2025
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 Virginia Water
Other active plumbing and heating companies registered in Virginia Water.
- TJ Heating & Plumbing Limited2021
- Cadogan Living Ltd2021
- Eaton Property & Maintenance Ltd.2021
- Milbourne Construction Limited2010
All plumbing and heating companies in Virginia Water · All trades in Virginia Water · Plumbers and heating engineers across the UK
Frequently asked questions
When are Sim-Air Ltd's accounts due?
Sim-Air Ltd's next accounts are due at Companies House by 31 August 2027 (in 323 days), covering the period to 30 November 2026.
When is Sim-Air Ltd's CT600 due?
The CT600 for the period to 30 November 2026 is due at HMRC by 30 November 2027, 12 months after the period end. The corporation tax itself is payable earlier, by 1 September 2027.
Is Sim-Air Ltd still trading?
Sim-Air 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 Sim-Air Ltd do?
Sim-Air Ltd is registered under Plumbing, heat and air-conditioning installation (SIC 43220).
How old is Sim-Air Ltd?
Sim-Air Ltd was incorporated on 11 November 2022, 3 years ago.
What is the penalty if Sim-Air 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 Sim-Air 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.