- Companies
- Specialist contractors
- Glasgow
- Strathclyde Windows Ltd
Strathclyde Windows Ltd
- Company number
- SC607241
- Incorporated
- 4 Sep 20188 years trading
- Registered office
- 10 Waverley Street, Glasgow, G41 2EA
- Nature of business
- Other specialised construction activities n.e.c.
Strathclyde Windows Ltd is a 8-year-old private limited company registered in Glasgow, company number SC607241, one of 522 specialist construction companies in Glasgow. 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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Where Strathclyde Windows Ltd is registered
The registered office is in Glasgow (G41), in the Glasgow City local authority area, Scotland. Show G41 2EA on a map.
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- Burnfield Motors Glasgow LtdMechanics and garages
What happens if Strathclyde Windows 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 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
- SC607241
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 4 September 2018 (8 years ago)
- Registered office
- 10 Waverley Street, Glasgow, G41 2EA
- Nature of business
- Other specialised construction activities n.e.c. (SIC 43999)
- Year end
- 30 September (accounting reference date)
- Accounts type
- Unaudited abridged
- Last accounts made up to
- 30 September 2025
- Last confirmation statement
- 20 March 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 Glasgow
Other active specialist construction companies registered in Glasgow.
- Stratum Masonry Limited2019
- Sunshine Building Contractors Ltd2018
- Superior Access Ltd2019
- Superior Build Group Ltd2025
- Surfix Solutions Ltd2026
- Sustainable Asset Management Ltd2014
- Sweeney Site Skills Limited2023
- SWL Stonemasonry Specialists Ltd2015
All specialist construction companies in Glasgow · All trades in Glasgow · Specialist contractors across the UK
Frequently asked questions
When are Strathclyde Windows Ltd's accounts due?
Strathclyde Windows Ltd's next accounts are due at Companies House by 30 June 2027 (in 261 days), covering the period to 30 September 2026.
When is Strathclyde Windows Ltd'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 Strathclyde Windows Ltd still trading?
Strathclyde Windows 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 Strathclyde Windows Ltd do?
Strathclyde Windows Ltd is registered under Other specialised construction activities n.e.c. (SIC 43999).
How old is Strathclyde Windows Ltd?
Strathclyde Windows Ltd was incorporated on 4 September 2018, 8 years ago.
What is the penalty if Strathclyde Windows 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 Strathclyde Windows 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.