- Companies
- Plumbers and heating engineers
- Paisley
- M4 Heating Systems Ltd
M4 Heating Systems Ltd
- Company number
- SC808558
- Incorporated
- 26 Apr 20242 years trading
- Registered office
- McKellar Accountancy, Unit Studio 2001 Mile End Mill, Abbey Mill Business Centre Ltd, 12 Seedhill Road, Paisley, Renfrewshire, PA1 1JS
- Nature of business
- Plumbing, heat and air-conditioning installation
M4 Heating Systems Ltd is a 2-year-old private limited company registered in Paisley, company number SC808558, one of 38 plumbing and heating companies in Paisley. Its next accounts are due at Companies House on 31 January 2027, and the CT600 for the period to 30 April 2026 is due at HMRC on 30 April 2027.
Key dates
Worked out from the year end and filing history on the Companies House register.
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Financial snapshot, 2025
From the balance sheet at 30 April 2025, as filed at Companies House. Negative net assets mean the company owed more than it owned at that date.
Where M4 Heating Systems Ltd is registered
The registered office is in Paisley (PA1), in the Renfrewshire local authority area, Scotland. Show PA1 1JS on a map.
Other trade companies in PA1
- Imk Joinery LtdJoiners and carpenters
- Maid Up Home LtdCleaning companies
- Tinto Cleaning Services LimitedCleaning companies
- Paisley Electrician LtdElectricians
- Argyle Joinery LimitedJoiners and carpenters
- Wheelie Clean Bins & Driveways LtdCleaning companies
- Eidyn Projects LtdBuilders
- Fox Project Management Consultancy LtdProperty developers
Also registered at this address
10 other companies use the same registered office as M4 Heating Systems Ltd.
- Clanscape Designs LtdLandscapers and gardeners
- CP Roofing Solutions LtdRoofers
- Deco Air LtdMachinery repair and installation
- DG Auto Repairs LimitedMechanics and garages
- Dompliance LtdElectricians
- Ew Joinery LimitedJoiners and carpenters
- Fuadain Grass LimitedLandscapers and gardeners
- Future Contractors LtdPlumbers and heating engineers
- Kellock Contracts LtdSpecialist contractors
- Murray Plaster & Labour Services LimitedPlasterers
What happens if M4 Heating Systems 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 31 January 2027.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 1 Feb 2027 to 28 Feb 2027 | £150 |
| 1 to 3 months late | 1 Mar 2027 to 30 Apr 2027 | £375 |
| 3 to 6 months late | 1 May 2027 to 31 Jul 2027 | £750 |
| More than 6 months late | From 1 Aug 2027 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 May 2027 | £200 |
| 3 months late | 30 Jul 2027 | another £200 |
| 6 months late | 30 Oct 2027 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 30 Apr 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
- SC808558
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 26 April 2024 (2 years ago)
- Registered office
- McKellar Accountancy, Unit Studio 2001 Mile End Mill, Abbey Mill Business Centre Ltd, 12 Seedhill Road, Paisley, Renfrewshire, PA1 1JS
- Nature of business
- Plumbing, heat and air-conditioning installation (SIC 43220)
- Year end
- 30 April (accounting reference date)
- Accounts type
- Total exemption (full)
- Last accounts made up to
- 30 April 2025
- Last confirmation statement
- 15 April 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 Paisley
Other active plumbing and heating companies registered in Paisley.
- McGregor Plumbing and Heating Limited2020
- MCR Plumbing and Heating (Scotland) Ltd2024
- MK Solar Solutions Ltd2023
- Moore Plumbing & Heating Services (Scotland) Ltd2011
- Prime Line Plumbing Solutions Ltd2026
- PRLD Ltd2025
- Revolution Plumbing and Heating Solutions Ltd2025
- Richardson Gas & Heating Limited2022
All plumbing and heating companies in Paisley · All trades in Paisley · Plumbers and heating engineers across the UK
Frequently asked questions
When are M4 Heating Systems Ltd's accounts due?
M4 Heating Systems Ltd's next accounts are due at Companies House by 31 January 2027 (in 111 days), covering the period to 30 April 2026.
When is M4 Heating Systems Ltd's CT600 due?
The CT600 for the period to 30 April 2026 is due at HMRC by 30 April 2027, 12 months after the period end. The corporation tax itself is payable earlier, by 1 February 2027.
Is M4 Heating Systems Ltd still trading?
M4 Heating Systems 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 M4 Heating Systems Ltd do?
M4 Heating Systems Ltd is registered under Plumbing, heat and air-conditioning installation (SIC 43220).
How old is M4 Heating Systems Ltd?
M4 Heating Systems Ltd was incorporated on 26 April 2024, 2 years ago.
What is the penalty if M4 Heating Systems 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 M4 Heating Systems 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.