- Companies
- Plumbers and heating engineers
- Newcastle
- MM Coolzone Ltd
MM Coolzone Ltd
- Company number
- 16814233
- Incorporated
- 28 Oct 2025
- Registered office
- 36 Newport Grove, Newcastle, ST5 7QL
- Nature of business
- Plumbing, heat and air-conditioning installation
MM Coolzone Ltd is a newly incorporated private limited company registered in Newcastle, company number 16814233, one of 50 plumbing and heating companies in Newcastle. Its next accounts are due at Companies House on 28 July 2027, and its first CT600 is due at HMRC on 27 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.
Is this your company?
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Where MM Coolzone Ltd is registered
The registered office is in Newcastle (ST5), in the Newcastle-under-Lyme local authority area, West Midlands. Show ST5 7QL on a map.
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- Restore Property Group LimitedInstallers
- DT Mobile Engineering LtdMechanics and garages
- Woolliscroft Homes (Mow Cop) LimitedBuilders
- Brazier Construction (Stoke on Trent) New LimitedFinishing trades
- Cav-Ex Solutions LtdSpecialist contractors
- Matrix Key Solutions LimitedMechanics and garages
- NW Ground Solutions LtdCivil engineering
What happens if MM Coolzone 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 28 July 2027.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 29 Jul 2027 to 28 Aug 2027 | £150 |
| 1 to 3 months late | 29 Aug 2027 to 28 Oct 2027 | £375 |
| 3 to 6 months late | 29 Oct 2027 to 28 Jan 2028 | £750 |
| More than 6 months late | From 29 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
- 16814233
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 28 October 2025
- Registered office
- 36 Newport Grove, Newcastle, ST5 7QL
- Nature of business
- Plumbing, heat and air-conditioning installation (SIC 43220)
- Year end
- 31 October (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 Newcastle
Other active plumbing and heating companies registered in Newcastle.
- One Way Plumbing Limited2024
- Paul Devlin Mechanical Services Ltd2014
- PJS Mechanical Ltd2017
- Platts Air Conditioning Limited2021
- Power and Heating Solutions Limited2014
- R & H Insulations Limited2005
- Ra Plumbers Ltd2023
- Radheat Ltd2006
All plumbing and heating companies in Newcastle · All trades in Newcastle · Plumbers and heating engineers across the UK
Frequently asked questions
When are MM Coolzone Ltd's accounts due?
MM Coolzone Ltd's next accounts are due at Companies House by 28 July 2027 (in 288 days), covering the period to 31 October 2026.
When is MM Coolzone 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 27 October 2026, due by 27 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 MM Coolzone Ltd still trading?
MM Coolzone 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 MM Coolzone Ltd do?
MM Coolzone Ltd is registered under Plumbing, heat and air-conditioning installation (SIC 43220).
How old is MM Coolzone Ltd?
MM Coolzone Ltd was incorporated on 28 October 2025, less than a year ago.
What is the penalty if MM Coolzone 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 MM Coolzone 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.