- Companies
- Specialist contractors
- Alresford
- Specialised Gas Installations Limited
Specialised Gas Installations Limited
- Company number
- 05518245
- Incorporated
- 26 Jul 200521 years trading
- Registered office
- Specialised Gas Installations Limited Unit 4 Wessenden Business Park, Prospect Road, Alresford, Hampshire, SO24 9QF
- Nature of business
- Other specialised construction activities n.e.c.
Specialised Gas Installations Limited is a 21-year-old private limited company registered in Alresford, company number 05518245, one of 8 specialist construction companies in Alresford. Its next accounts are due at Companies House on 30 June 2027, and the CT600 for the period to 30 September 2026 is due at HMRC on 30 September 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 £4,611 (+1.7%) on the year before, to £282K.
- Net assets rose in 7 of 9 year-on-year comparisons on record.
- Current assets of £394K against £157K owed within a year: 2.5 times cover.
- 3 employees 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 Sep 2025 | £282K | £203K | £394K | £157K | 3 |
| 30 Sep 2024 | £277K | £212K | £306K | £64K | 3 |
| 30 Sep 2023 | £301K | £292K | £433K | £186K | 3 |
| 30 Sep 2022 | £284K | £275K | £339K | £101K | 4 |
| 30 Sep 2021 | £277K | £220K | £392K | £140K | 4 |
| 30 Sep 2020 | £129K | £111K | £210K | £100K | 4 |
| 30 Sep 2019 | £73K | £75K | £137K | £72K | 3 |
| 30 Sep 2018 | £69K | £38K | £109K | £58K | 3 |
| 30 Sep 2017 | £35K | £21K | £63K | £43K | 3 |
| 30 Sep 2016 | £51K | £38K | £73K |
Where Specialised Gas Installations Limited is registered
The registered office is in Alresford (SO24), in the Winchester local authority area, South East. Show SO24 9QF on a map.
Other trade companies in SO24
- Landlec Electrical Services LimitedElectricians
- DP Hampshire Groundworks LtdGroundworks and demolition
- Evergreen Hampshire LtdLandscapers and gardeners
- Meadow View Developments LtdProperty developers
- Aps Paint Holdings LimitedMotor traders
- DJS Auto Services LtdMechanics and garages
- WL Enterprises LtdCleaning companies
- Pureair Climate Control LimitedPlumbers and heating engineers
What happens if Specialised Gas Installations 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 30 June 2027.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 1 Jul 2027 to 31 Jul 2027 | £150 |
| 1 to 3 months late | 1 Aug 2027 to 30 Sep 2027 | £375 |
| 3 to 6 months late | 1 Oct 2027 to 31 Dec 2027 | £750 |
| More than 6 months late | From 1 Jan 2028 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Oct 2027 | £200 |
| 3 months late | 30 Dec 2027 | another £200 |
| 6 months late | 30 Mar 2028 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 30 Sep 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
- 05518245
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 26 July 2005 (21 years ago)
- Registered office
- Specialised Gas Installations Limited Unit 4 Wessenden Business Park, Prospect Road, Alresford, Hampshire, SO24 9QF
- Nature of business
- Other specialised construction activities n.e.c. (SIC 43999)
- Year end
- 30 September (accounting reference date)
- Accounts type
- Total exemption (full)
- Last accounts made up to
- 30 September 2025
- Last confirmation statement
- 10 May 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 Alresford
Other active specialist construction companies registered in Alresford.
- Specialist Geotechnical Services Limited2012
- White Worxs Ltd2012
- Alresford Handyman Services Ltd2018
- Cambium Construction Limited2019
- Clear Blue Energy Limited2016
- Landscape Associates Limited2005
- Master Jet Limited1989
All specialist construction companies in Alresford · All trades in Alresford · Specialist contractors across the UK
Frequently asked questions
When are Specialised Gas Installations Limited's accounts due?
Specialised Gas Installations Limited's next accounts are due at Companies House by 30 June 2027 (in 260 days), covering the period to 30 September 2026.
When is Specialised Gas Installations Limited's CT600 due?
The CT600 for the period to 30 September 2026 is due at HMRC by 30 September 2027, 12 months after the period end. The corporation tax itself is payable earlier, by 1 July 2027.
Is Specialised Gas Installations Limited still trading?
Specialised Gas Installations 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 Specialised Gas Installations Limited do?
Specialised Gas Installations Limited is registered under Other specialised construction activities n.e.c. (SIC 43999).
How old is Specialised Gas Installations Limited?
Specialised Gas Installations Limited was incorporated on 26 July 2005, 21 years ago.
What is the penalty if Specialised Gas Installations 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 Specialised Gas Installations 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.