- Company number
- 13535710
- Incorporated
- 28 Jul 20215 years trading
- Registered office
- 10 Duxford Close, Cardiff, CF5 2PR
- Nature of business
- Roofing activities
GMSG Building Ltd is a 5-year-old private limited company registered in Cardiff, company number 13535710, one of 60 roofing companies in Cardiff. Its next accounts are due at Companies House on 30 April 2027, and the CT600 for the period to 31 July 2026 is due at HMRC on 31 July 2027.
Key dates
Worked out from the year end and filing history on the Companies House register.
Is this your company?
File the accounts to Companies House and the CT600 to HMRC yourself with A.X.E.L Filing. One set of questions, both filings, £49 flat. No accountant, no subscription.
File for GMSG Building LtdOr get a reminder before each deadline
Free. We email you 60, 30, 14, 7 and 1 days before the accounts, CT600 and confirmation statement are due. Unsubscribe in one click.
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 down £26K (-55.7%) on the year before, to £20K.
- Net assets rose in 1 of 3 year-on-year comparisons on record.
- Current assets of £46K against £39K owed within a year: 1.2 times cover.
- 1 employee on average during the year.
- Balance sheets on record for 4 years, 2022 to 2025.
Net assets by year
| Year end | Net assets | Cash | Current assets | Owed within a year | Employees |
|---|---|---|---|---|---|
| 31 Jul 2025 | £20K | £46K | £39K | 1 | |
| 31 Jul 2024 | £46K | £60K | £38K | 1 | |
| 31 Jul 2023 | £62K | £53K | 2 | ||
| 31 Jul 2022 | £62K | £60K | £0 | 2 |
Where GMSG Building Ltd is registered
The registered office is in Cardiff (CF5), in the Cardiff local authority area, Wales. Show CF5 2PR on a map.
Other trade companies in CF5
- Art Electrical Solutions LimitedElectricians
- Chapman Construction Cardiff LtdBuilders
- MN Projects Co. LtdBuilders
- Bridge Deck Solutions LtdCivil engineering
- Gilps Construction LtdPainters and decorators
- CF Window Cleaning LtdCleaning companies
- RK Fire and Electrical LtdElectricians
- BDL Cleaning LtdCleaning companies
What happens if GMSG Building 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 April 2027.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 1 May 2027 to 31 May 2027 | £150 |
| 1 to 3 months late | 1 Jun 2027 to 31 Jul 2027 | £375 |
| 3 to 6 months late | 1 Aug 2027 to 31 Oct 2027 | £750 |
| More than 6 months late | From 1 Nov 2027 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Aug 2027 | £200 |
| 3 months late | 31 Oct 2027 | another £200 |
| 6 months late | 31 Jan 2028 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 31 Jul 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
- 13535710
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 28 July 2021 (5 years ago)
- Registered office
- 10 Duxford Close, Cardiff, CF5 2PR
- Nature of business
- Roofing activities (SIC 43910)
- Year end
- 31 July (accounting reference date)
- Accounts type
- Micro-entity
- Last accounts made up to
- 31 July 2025
- Last confirmation statement
- 26 April 2026
Filing notes for roofing companies
Roofing companies commonly work under CIS and run vans and access equipment, so CIS deductions and capital allowances are the two things to get right.
Similar companies in Cardiff
Other active roofing companies registered in Cardiff.
- Heath Roofing Service Ltd2022
- Hi-Tech Industrial Roofing Limited1990
- Intell Roofing & Building Ltd2024
- J R M Flat Roofing Specialists Ltd2019
- J.O'Brien Roofing Ltd2024
- James Henry Flat Roofing Limited2022
- Jamie Burley Flat Roofing Specialist Limited2014
- Jobling Tar Limited2021
All roofing companies in Cardiff · All trades in Cardiff · Roofers across the UK
Frequently asked questions
When are GMSG Building Ltd's accounts due?
GMSG Building Ltd's next accounts are due at Companies House by 30 April 2027 (in 200 days), covering the period to 31 July 2026.
When is GMSG Building Ltd's CT600 due?
The CT600 for the period to 31 July 2026 is due at HMRC by 31 July 2027, 12 months after the period end. The corporation tax itself is payable earlier, by 1 May 2027.
Is GMSG Building Ltd still trading?
GMSG Building 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 GMSG Building Ltd do?
GMSG Building Ltd is registered under Roofing activities (SIC 43910).
How old is GMSG Building Ltd?
GMSG Building Ltd was incorporated on 28 July 2021, 5 years ago.
What is the penalty if GMSG Building 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 GMSG Building 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.