- Companies
- Installers
- Ebbw Vale
- Mark Muir Building Services Ltd
Mark Muir Building Services Ltd
- Company number
- 06443083
- Incorporated
- 3 Dec 200718 years trading
- Registered office
- Unit 2 Blaenant Industrial Estate, Brymawr, Ebbw Vale, Gwent, NP23 4BX
- Nature of business
- Other construction installation
Mark Muir Building Services Ltd is a 18-year-old private limited company registered in Ebbw Vale, company number 06443083, one of 7 installation companies (insulation, lifts, shutters and similar) in Ebbw Vale. Its next accounts are due at Companies House on 30 September 2027, and the CT600 for the period to 31 December 2026 is due at HMRC on 31 December 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 £880 (+396.4%) on the year before, to £1,102.
- Net assets rose in 6 of 9 year-on-year comparisons on record.
- Current assets of £4,154 against £4,791 owed within a year: 0.9 times cover.
- No employees reported for the latest year (directors are often not counted as employees).
- Balance sheets on record for 10 years, 2016 to 2025.
Net assets by year
| Year end | Net assets | Cash | Current assets | Owed within a year | Employees |
|---|---|---|---|---|---|
| 31 Dec 2025 | £1,102 | £2,807 | £4,154 | £4,791 | 0 |
| 31 Dec 2024 | £222 | £1,490 | £3,257 | £4,654 | 1 |
| 31 Dec 2023 | £964 | £944 | £4,727 | £3,872 | 1 |
| 31 Dec 2022 | £4,354 | £2,942 | £11K | £7,601 | 1 |
| 31 Dec 2021 | £1,946 | £281 | £7,422 | £6,423 | 1 |
| 31 Dec 2020 | £348 | £3,535 | £4,776 | £5,545 | 1 |
| 31 Dec 2019 | £267 | £1,956 | £1,956 | £2,926 | 1 |
| 31 Dec 2018 | £260 | £6,887 | £12K | £13K | 1 |
| 31 Dec 2017 | £2,136 | £4,799 | £10K | £9,362 | |
| 31 Dec 2016 | £1,467 | £3,027 | £9,317 | £12K |
Who runs and owns Mark Muir Building Services Ltd
From the Companies House register. Individuals are shown by initials only; the full register is on Companies House.
Officer
| Name | Role | Appointed |
|---|---|---|
| M*** M*** | Director | Dec 2007 |
4 former officers
| Name | Role | Appointed | Left |
|---|---|---|---|
| S*** M*** | Secretary | Dec 2007 | Sep 2010 |
| 7side Secretarial Limited | Secretary (company) | Dec 2007 | Dec 2007 |
| S*** M*** | Director | Dec 2007 | Feb 2008 |
| 7side Nominees Limited | Director (company) | Dec 2007 | Dec 2007 |
Person with significant control
Where Mark Muir Building Services Ltd is registered
The registered office is in Ebbw Vale (NP23), in the Blaenau Gwent local authority area, Wales. Show NP23 4BX on a map.
Other trade companies in NP23
- Electrical Management and Design Services LtdElectricians
- Chartered Ground LtdSpecialist contractors
- DV Commercial Services LtdFinishing trades
- Warehouse Fork Tech LimitedMachinery repair and installation
- Transport.Solutions.Gwent LimitedMotor traders
- Geo Mobiles LtdRepair services
- Platoon Pest Control LtdCleaning companies
- Scrubzee Exteriors LimitedCleaning companies
What happens if Mark Muir Building 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 30 September 2027.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 1 Oct 2027 to 31 Oct 2027 | £150 |
| 1 to 3 months late | 1 Nov 2027 to 31 Dec 2027 | £375 |
| 3 to 6 months late | 1 Jan 2028 to 31 Mar 2028 | £750 |
| More than 6 months late | From 1 Apr 2028 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Jan 2028 | £200 |
| 3 months late | 31 Mar 2028 | another £200 |
| 6 months late | 30 Jun 2028 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 31 Dec 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
- 06443083
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 3 December 2007 (18 years ago)
- Registered office
- Unit 2 Blaenant Industrial Estate, Brymawr, Ebbw Vale, Gwent, NP23 4BX
- Nature of business
- Other construction installation (SIC 43290)
- Year end
- 31 December (accounting reference date)
- Accounts type
- Total exemption (full)
- Last accounts made up to
- 31 December 2025
- Last confirmation statement
- 8 December 2025
- Previous names
- Mark Muir Limited (until 16 Oct 2012)
Filing notes for installation companies (insulation, lifts, shutters and similar)
Installation companies (insulation, lifts, shutters, solar and similar) often buy stock and equipment up front, so stock at the year end and capital allowances both affect the tax bill.
Similar companies in Ebbw Vale
Other active installation companies (insulation, lifts, shutters and similar) registered in Ebbw Vale.
- Nova-Clad Roofing & Cladding Solutions Ltd2026
- RWT Brickwork Limited2023
- Uplift Services Ltd2024
- Valleys Trade PVC Ltd2025
- Darryl Steed Tiling Limited2024
- DW Groundwork & Construction Ltd2020
All installation companies (insulation, lifts, shutters and similar) in Ebbw Vale · All trades in Ebbw Vale · Installers across the UK
Frequently asked questions
When are Mark Muir Building Services Ltd's accounts due?
Mark Muir Building Services Ltd's next accounts are due at Companies House by 30 September 2027 (in 352 days), covering the period to 31 December 2026.
When is Mark Muir Building Services Ltd's CT600 due?
The CT600 for the period to 31 December 2026 is due at HMRC by 31 December 2027, 12 months after the period end. The corporation tax itself is payable earlier, by 1 October 2027.
Is Mark Muir Building Services Ltd still trading?
Mark Muir Building 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 Mark Muir Building Services Ltd do?
Mark Muir Building Services Ltd is registered under Other construction installation (SIC 43290).
How old is Mark Muir Building Services Ltd?
Mark Muir Building Services Ltd was incorporated on 3 December 2007, 18 years ago.
Who runs Mark Muir Building Services Ltd?
Mark Muir Building Services Ltd has 1 active director, the longest-serving appointed in Dec 2007. Their names and service addresses are on the Companies House register.
Who owns Mark Muir Building Services Ltd?
One person or company has significant control of Mark Muir Building Services Ltd: an individual (owns 75% or more of the shares).
What is the penalty if Mark Muir Building 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 Mark Muir Building 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.