- Companies
- Plumbers and heating engineers
- London
- GLSN Services Ltd
GLSN Services Ltd
- Company number
- 16944521
- Incorporated
- 5 Jan 2026
- Registered office
- Flat 28 Barnes House, Warltersville Road, London, N19 3AN
- Nature of business
- Plumbing, heat and air-conditioning installation
GLSN Services Ltd is a newly incorporated private limited company registered in London, company number 16944521, one of 2,972 plumbing and heating companies in London. Its next accounts are due at Companies House on 5 October 2027, and its first CT600 is due at HMRC on 4 January 2028.
Key dates
This company has not filed accounts yet. First accounts are due 21 months after incorporation, and the first period can run longer than a year.
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Where GLSN Services Ltd is registered
The registered office is in London (N19), in the Islington local authority area, London. Show N19 3AN on a map.
Other trade companies in N19
- DR Pro Services LtdCleaning companies
- Rams Property Services LtdSpecialist contractors
- Lushi Plumbing and Heating LtdPlumbers and heating engineers
- One Fix Gutter Solutions LtdRoofers
- Mmway Construction LtdSpecialist contractors
- Elio's Landscaping Ltd LtdBuilders
- Novix Smart Wash LtdMachinery repair and installation
- Alex Maintenance LtdPainters and decorators
What happens if GLSN Services 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 5 October 2027.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 6 Oct 2027 to 5 Nov 2027 | £150 |
| 1 to 3 months late | 6 Nov 2027 to 5 Jan 2028 | £375 |
| 3 to 6 months late | 6 Jan 2028 to 5 Apr 2028 | £750 |
| More than 6 months late | From 6 Apr 2028 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Feb 2028 | £200 |
| 3 months late | 30 Apr 2028 | another £200 |
| 6 months late | 31 Jul 2028 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 31 Jan 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
- 16944521
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 5 January 2026
- Registered office
- Flat 28 Barnes House, Warltersville Road, London, N19 3AN
- Nature of business
- Plumbing, heat and air-conditioning installation (SIC 43220)
- Year end
- 31 January (accounting reference date)
- Accounts type
- No accounts filed yet
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 London
Other active plumbing and heating companies registered in London.
- GM Plumbing Ltd2026
- GMF London Services Limited2017
- GML Plumbing & Heating Ltd2022
- GMS Residential Limited2026
- GMZ Property Solution Ltd2025
- GNP Airconditioning Ltd2022
- GNR Installation Ltd2026
- Go Gas Heating Ltd2024
All plumbing and heating companies in London · All trades in London · Plumbers and heating engineers across the UK
Frequently asked questions
When are GLSN Services Ltd's accounts due?
GLSN Services Ltd's next accounts are due at Companies House by 5 October 2027 (in 357 days), covering the period to 31 January 2027.
When is GLSN Services Ltd's CT600 due?
The first accounts cover more than 12 months, so there are two Company Tax Returns: one for the 12 months to 4 January 2027, due by 4 January 2028, and one for the period to 31 January 2027, due by 31 January 2028. Corporation tax is payable 9 months and 1 day after the end of each.
Is GLSN Services Ltd still trading?
GLSN Services 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 GLSN Services Ltd do?
GLSN Services Ltd is registered under Plumbing, heat and air-conditioning installation (SIC 43220).
How old is GLSN Services Ltd?
GLSN Services Ltd was incorporated on 5 January 2026, less than a year ago.
What is the penalty if GLSN Services 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 GLSN Services 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.