- Companies
- Specialist contractors
- Glasgow
- GMC Ventilation Systems Ltd
GMC Ventilation Systems Ltd
- Company number
- SC561149
- Incorporated
- 21 Mar 20179 years trading
- Registered office
- 61A Willowlane, Carmyle Avenue, Glasgow, G32 8HX
- Nature of business
- Other specialised construction activities n.e.c.
GMC Ventilation Systems Ltd is a 9-year-old private limited company registered in Glasgow, company number SC561149, one of 522 specialist construction companies in Glasgow. Its next accounts are due at Companies House on 31 December 2027, and the CT600 for the period to 31 March 2027 is due at HMRC on 31 March 2028.
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 £75 (+87.2%) on the year before, to £161.
- Net assets rose in 3 of 8 year-on-year comparisons on record.
- 2 employees on average during the year.
- Balance sheets on record for 9 years, 2018 to 2026.
Net assets by year
| Year end | Net assets | Cash | Current assets | Owed within a year | Employees |
|---|---|---|---|---|---|
| 31 Mar 2026 | £161 | £9,639 | 2 | ||
| 31 Mar 2025 | £86 | £12K | 2 | ||
| 31 Mar 2024 | £98 | £6,546 | 0 | ||
| 31 Mar 2023 | £33 | £10K | 0 | ||
| 31 Mar 2022 | £1,022 | £1,902 | 0 | ||
| 31 Mar 2021 | £3,860 | £6,053 | 0 | ||
| 31 Mar 2020 | £186 | £9,464 | |||
| 31 Mar 2019 | £1,968 | £15K | £2,881 | ||
| 31 Mar 2018 | £6,180 | £12K |
Who runs and owns GMC Ventilation Systems Ltd
From the Companies House register. Individuals are shown by initials only; the full register is on Companies House.
Officers (2)
| Name | Role | Appointed |
|---|---|---|
| A*** M*** | Director | Mar 2017 |
| G*** M*** | Director | Mar 2017 |
People with significant control (2)
Where GMC Ventilation Systems Ltd is registered
The registered office is in Glasgow (G32), in the Glasgow City local authority area, Scotland. Show G32 8HX on a map.
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- Ano Autos LtdMechanics and garages
- Paradigm Flooring LtdFloor and wall tilers
- Dsteel Projects LtdBuilders
- Proton Power Wash LtdCleaning companies
- RB Track and Tree Solutions LtdCivil engineering
- G2 Civils LtdCivil engineering
What happens if GMC Ventilation Systems 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 December 2027.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 1 Jan 2028 to 31 Jan 2028 | £150 |
| 1 to 3 months late | 1 Feb 2028 to 31 Mar 2028 | £375 |
| 3 to 6 months late | 1 Apr 2028 to 30 Jun 2028 | £750 |
| More than 6 months late | From 1 Jul 2028 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Apr 2028 | £200 |
| 3 months late | 30 Jun 2028 | another £200 |
| 6 months late | 30 Sep 2028 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 31 Mar 2029 | 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
- SC561149
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 21 March 2017 (9 years ago)
- Registered office
- 61A Willowlane, Carmyle Avenue, Glasgow, G32 8HX
- Nature of business
- Other specialised construction activities n.e.c. (SIC 43999)
- Year end
- 31 March (accounting reference date)
- Accounts type
- Micro-entity
- Last accounts made up to
- 31 March 2026
- Last confirmation statement
- 5 October 2025
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 Glasgow
Other active specialist construction companies registered in Glasgow.
- GMCK Access Ltd2025
- GMG Plumbing and Heating Ltd2021
- GMG Renewables & Esos Ems Limited2019
- GMK Property Services Ltd2024
- GNG Ltd2022
- Go-Con Ltd2015
- Good Auld Rope Access Solutions Ltd2025
- Good Boy Services Ltd2024
All specialist construction companies in Glasgow · All trades in Glasgow · Specialist contractors across the UK
Frequently asked questions
When are GMC Ventilation Systems Ltd's accounts due?
GMC Ventilation Systems Ltd's next accounts are due at Companies House by 31 December 2027 (in 444 days), covering the period to 31 March 2027.
When is GMC Ventilation Systems Ltd's CT600 due?
The CT600 for the period to 31 March 2027 is due at HMRC by 31 March 2028, 12 months after the period end. The corporation tax itself is payable earlier, by 1 January 2028.
Is GMC Ventilation Systems Ltd still trading?
GMC Ventilation Systems 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 GMC Ventilation Systems Ltd do?
GMC Ventilation Systems Ltd is registered under Other specialised construction activities n.e.c. (SIC 43999).
How old is GMC Ventilation Systems Ltd?
GMC Ventilation Systems Ltd was incorporated on 21 March 2017, 9 years ago.
Who runs GMC Ventilation Systems Ltd?
GMC Ventilation Systems Ltd has 2 active directors, the longest-serving appointed in Mar 2017. Their names and service addresses are on the Companies House register.
Who owns GMC Ventilation Systems Ltd?
2 people or companies have significant control of GMC Ventilation Systems Ltd: an individual (owns 50% to 75% of the shares); an individual (owns 50% to 75% of the shares).
What is the penalty if GMC Ventilation Systems 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 GMC Ventilation Systems 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.