- Companies
- Plumbers and heating engineers
- Glasgow
- 1ST Solar Ltd
1ST Solar Ltd
- Company number
- SC437976
- Incorporated
- 30 Nov 201213 years trading
- Registered office
- Clyde Offices, 48, West George Street, Glasgow, G2 1BP
- Nature of business
- Plumbing, heat and air-conditioning installation
1ST Solar Ltd is a 13-year-old private limited company registered in Glasgow, company number SC437976, one of 515 plumbing and heating companies in Glasgow. Its next accounts are due at Companies House on 28 February 2027, and the CT600 for the period to 31 May 2026 is due at HMRC on 31 May 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 £64K on the year before, to £64K.
- Net assets rose in 7 of 9 year-on-year comparisons on record.
- Current assets of £251 against £19K owed within a year: 0.0 times cover.
- 1 employee on average during the year.
- Balance sheets on record for 10 years, 2015 to 2024.
Net assets by year
| Year end | Net assets | Cash | Current assets | Owed within a year | Employees |
|---|---|---|---|---|---|
| 31 May 2024 | £64K | £251 | £19K | 1 | |
| 31 May 2023 | £100 | £100 | |||
| 31 May 2022 | £59K | £381 | £14K | 1 | |
| 31 May 2021 | £46K | £11K | £18K | 1 | |
| 31 May 2020 | £44K | £145 | £17K | 1 | |
| 31 May 2019 | £34K | £21 | £5,222 | ||
| 31 May 2018 | £32K | £0 | £3,387 | ||
| 31 May 2017 | -£27K | £8,134 | £1,566 | ||
| 31 May 2016 | £4,413 | £0 | £22K | £21K | |
| 31 May 2015 | -£18K | £15K | £19K | £42K |
Where 1ST Solar Ltd is registered
The registered office is in Glasgow (G2), in the Glasgow City local authority area, Scotland. Show G2 1BP on a map.
Other trade companies in G2
- Averloch Contracting LimitedCivil engineering
- Halcyon Sports Services LtdProperty developers
- Kiess & Co. Decorators LtdPainters and decorators
- The Three Sisters Furniture and Flooring LtdFloor and wall tilers
- Projectform Construction LtdJoiners and carpenters
- The Scaffold Network Scotland LtdScaffolders
- Hanlon Property Solutions LtdJoiners and carpenters
- Bellroc Mould Solutions LimitedPainters and decorators
Also registered at this address
4 other companies use the same registered office as 1ST Solar Ltd.
- B9 Property Developments LtdProperty developers
- C T P D Construction LtdProperty developers
- Fitz Partners Group LtdProperty developers
- Group1 Property Development LtdProperty developers
What happens if 1ST Solar 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 28 February 2027.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 1 Mar 2027 to 31 Mar 2027 | £150 |
| 1 to 3 months late | 1 Apr 2027 to 31 May 2027 | £375 |
| 3 to 6 months late | 1 Jun 2027 to 31 Aug 2027 | £750 |
| More than 6 months late | From 1 Sep 2027 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Jun 2027 | £200 |
| 3 months late | 31 Aug 2027 | another £200 |
| 6 months late | 30 Nov 2027 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 31 May 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
- SC437976
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 30 November 2012 (13 years ago)
- Registered office
- Clyde Offices, 48, West George Street, Glasgow, G2 1BP
- Nature of business
- Plumbing, heat and air-conditioning installation (SIC 43220)
- Year end
- 31 May (accounting reference date)
- Accounts type
- Micro-entity
- Last accounts made up to
- 31 May 2025
- Last confirmation statement
- 8 March 2026
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 Glasgow
Other active plumbing and heating companies registered in Glasgow.
- 24/7 Emergency Plumbing Services Ltd2025
- 247 Energy Solutions Ltd2024
- 2@T Plumbing and Heating Ltd2023
- A&R Gas Heating & Plumbing Services Ltd2022
- A1 Domestic Services Ltd2021
- A1 Renewables Ltd2024
- Aa Plumbing Heating and Gas Ltd2022
- Ab Gas Heating & Plumbing Ltd2026
All plumbing and heating companies in Glasgow · All trades in Glasgow · Plumbers and heating engineers across the UK
Frequently asked questions
When are 1ST Solar Ltd's accounts due?
1ST Solar Ltd's next accounts are due at Companies House by 28 February 2027 (in 138 days), covering the period to 31 May 2026.
When is 1ST Solar Ltd's CT600 due?
The CT600 for the period to 31 May 2026 is due at HMRC by 31 May 2027, 12 months after the period end. The corporation tax itself is payable earlier, by 1 March 2027.
Is 1ST Solar Ltd still trading?
1ST Solar 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 1ST Solar Ltd do?
1ST Solar Ltd is registered under Plumbing, heat and air-conditioning installation (SIC 43220).
How old is 1ST Solar Ltd?
1ST Solar Ltd was incorporated on 30 November 2012, 13 years ago.
What is the penalty if 1ST Solar 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 1ST Solar 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.