- Companies
- Specialist contractors
- Glasgow
- G1 Sealant Ltd
G1 Sealant Ltd
- Company number
- SC867546
- Incorporated
- 24 Oct 2025
- Registered office
- 1 Cambuslang Court, Cambuslang, Glasgow, Strathclyde, G32 8FH
- Nature of business
- Other specialised construction activities n.e.c.
G1 Sealant Ltd is a newly incorporated private limited company registered in Glasgow, company number SC867546, one of 522 specialist construction companies in Glasgow. Its next accounts are due at Companies House on 24 July 2027, and its first CT600 is due at HMRC on 23 October 2027.
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 G1 Sealant Ltd is registered
The registered office is in Glasgow (G32), in the Glasgow City local authority area, Scotland. Show G32 8FH on a map.
Other trade companies in G32
- Mercspec LtdMechanics and garages
- East End Rigging & Lifting LimitedSpecialist contractors
- 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
Shared registered office
122 companies on our pages use this registered office address. An address shared this widely is usually an accountant's office or a company formation agent's service address, not where the business trades from.
What happens if G1 Sealant 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 24 July 2027.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 25 Jul 2027 to 24 Aug 2027 | £150 |
| 1 to 3 months late | 25 Aug 2027 to 24 Oct 2027 | £375 |
| 3 to 6 months late | 25 Oct 2027 to 24 Jan 2028 | £750 |
| More than 6 months late | From 25 Jan 2028 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Nov 2027 | £200 |
| 3 months late | 31 Jan 2028 | another £200 |
| 6 months late | 30 Apr 2028 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 31 Oct 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
- SC867546
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 24 October 2025
- Registered office
- 1 Cambuslang Court, Cambuslang, Glasgow, Strathclyde, G32 8FH
- Nature of business
- Other specialised construction activities n.e.c. (SIC 43999)
- Year end
- 31 October (accounting reference date)
- Accounts type
- No accounts filed yet
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.
- G2Power Limited2025
- G71 Cleaning Services Ltd.2019
- Gadloch Limited2001
- Garcam Filter Services Limited2002
- Garden Office Direct Ltd2021
- GD Gray Dry Stone Construction Ltd2016
- GDC Planning Limited2017
- GDN Preservation Limited2013
All specialist construction companies in Glasgow · All trades in Glasgow · Specialist contractors across the UK
Frequently asked questions
When are G1 Sealant Ltd's accounts due?
G1 Sealant Ltd's next accounts are due at Companies House by 24 July 2027 (in 284 days), covering the period to 31 October 2026.
When is G1 Sealant 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 23 October 2026, due by 23 October 2027, and one for the period to 31 October 2026, due by 31 October 2027. Corporation tax is payable 9 months and 1 day after the end of each.
Is G1 Sealant Ltd still trading?
G1 Sealant 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 G1 Sealant Ltd do?
G1 Sealant Ltd is registered under Other specialised construction activities n.e.c. (SIC 43999).
How old is G1 Sealant Ltd?
G1 Sealant Ltd was incorporated on 24 October 2025, less than a year ago.
What is the penalty if G1 Sealant 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 G1 Sealant 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.