- Companies
- Plumbers and heating engineers
- Hemel Hempstead
- CM Wilson and Sons Ltd
CM Wilson and Sons Ltd
- Company number
- 10469962
- Incorporated
- 9 Nov 20169 years trading
- Registered office
- 57A Marlowes, Hemel Hempstead, HP1 1LE
- Nature of business
- Plumbing, heat and air-conditioning installation
CM Wilson and Sons Ltd is a 9-year-old private limited company registered in Hemel Hempstead, company number 10469962, one of 89 plumbing and heating companies in Hemel Hempstead. 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 £2,603 (+14.4%) on the year before, to £21K.
- Net assets rose in 5 of 8 year-on-year comparisons on record.
- Current assets of £81K against £73K owed within a year: 1.1 times cover.
- 3 employees on average, down from 4 the year before.
- Balance sheets on record for 9 years, 2017 to 2025.
Net assets by year
| Year end | Net assets | Cash | Current assets | Owed within a year | Employees |
|---|---|---|---|---|---|
| 31 Dec 2025 | £21K | £81K | £73K | 3 | |
| 31 Dec 2024 | £18K | £45K | £29K | 4 | |
| 31 Dec 2023 | £41K | £80K | £43K | 4 | |
| 31 Dec 2022 | £37K | £72K | £38K | 4 | |
| 31 Dec 2021 | £48K | £58K | £16K | 3 | |
| 31 Dec 2020 | £37K | £55K | £18K | 3 | |
| 31 Dec 2019 | £12K | £21K | £7,976 | 2 | |
| 31 Dec 2018 | £11K | £28K | £19K | ||
| 31 Dec 2017 | £15K | £37K | £25K |
Who runs and owns CM Wilson and Sons Ltd
From the Companies House register. Individuals are shown by initials only; the full register is on Companies House.
Officers (2)
| Name | Role | Appointed |
|---|---|---|
| C*** W*** | Director | Nov 2016 |
| E*** W*** | Director | Nov 2016 |
Person with significant control
Where CM Wilson and Sons Ltd is registered
The registered office is in Hemel Hempstead (HP1), in the Dacorum local authority area, East of England. Show HP1 1LE on a map.
Other trade companies in HP1
- Lem Road Tanker Repairs LtdMachinery repair and installation
- Dover Heights Group LtdJoiners and carpenters
- Trusentri LtdElectricians
- Cecil Property Group LimitedProperty developers
- Queensway Motors LtdMotor traders
- W.Parkins Building Services LtdBuilders
- Harvey & Sons Fire and Electrical LimitedElectricians
- Buzzard Fire Protection LtdSpecialist contractors
Also registered at this address
17 other companies use the same registered office as CM Wilson and Sons Ltd.
- C F Wholesale LtdElectricians
- Carrera Property Services LimitedSpecialist contractors
- Complete Finish LtdElectricians
- Corrigan Building Development LtdFinishing trades
- D L Perman Services LtdPainters and decorators
- Exclusive Parks LtdFinishing trades
- Grand Developments and Construction LimitedProperty developers
- JRH Electrical LimitedElectricians
- Maitland Brickwork LtdBuilders
- Maple Cleaning UK LimitedCleaning companies
- Prime Steel Services LimitedInstallers
- Ross Demolition LimitedGroundworks and demolition
- S J Watt Tiling LtdFloor and wall tilers
- S K L Construction & Design LtdProperty developers
- Solarguys LimitedMachinery repair and installation
- The Carfella LtdMotor traders
- W.Parkins Building Services LtdBuilders
What happens if CM Wilson and Sons 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
- 10469962
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 9 November 2016 (9 years ago)
- Registered office
- 57A Marlowes, Hemel Hempstead, HP1 1LE
- Nature of business
- Plumbing, heat and air-conditioning installation (SIC 43220)
- Year end
- 31 December (accounting reference date)
- Accounts type
- Micro-entity
- Last accounts made up to
- 31 December 2025
- Last confirmation statement
- 8 November 2025
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 Hemel Hempstead
Other active plumbing and heating companies registered in Hemel Hempstead.
- Cole Bros Plumbing & Heating Limited2016
- Connor Air Limited2026
- Courtney Property Services Limited2025
- Dacorum Plumbing Ltd2026
- Davudov Ltd2019
- DC Prime Heating Limited2024
- Delux Projects Limited2011
- Dey Mechanical Services Ltd2016
All plumbing and heating companies in Hemel Hempstead · All trades in Hemel Hempstead · Plumbers and heating engineers across the UK
Frequently asked questions
When are CM Wilson and Sons Ltd's accounts due?
CM Wilson and Sons 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 CM Wilson and Sons 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 CM Wilson and Sons Ltd still trading?
CM Wilson and Sons 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 CM Wilson and Sons Ltd do?
CM Wilson and Sons Ltd is registered under Plumbing, heat and air-conditioning installation (SIC 43220).
How old is CM Wilson and Sons Ltd?
CM Wilson and Sons Ltd was incorporated on 9 November 2016, 9 years ago.
Who runs CM Wilson and Sons Ltd?
CM Wilson and Sons Ltd has 2 active directors, the longest-serving appointed in Nov 2016. Their names and service addresses are on the Companies House register.
Who owns CM Wilson and Sons Ltd?
One person or company has significant control of CM Wilson and Sons Ltd: an individual (owns 75% or more of the shares).
What is the penalty if CM Wilson and Sons 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 CM Wilson and Sons 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.