- Companies
- Plumbers and heating engineers
- Hoddesdon
- Mark Thomas Services Ltd
Mark Thomas Services Ltd
- Company number
- 15704587
- Incorporated
- 7 May 20242 years trading
- Registered office
- Unit 2, Tower House, Hoddesdon, EN11 8UR
- Nature of business
- Plumbing, heat and air-conditioning installation
Mark Thomas Services Ltd is a 2-year-old private limited company registered in Hoddesdon, company number 15704587, one of 34 plumbing and heating companies in Hoddesdon. Its next accounts are due at Companies House on 29 February 2028, and the CT600 for the period to 31 May 2027 is due at HMRC on 31 May 2028.
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 £21K (+139.3%) on the year before, to £37K.
- Current assets of £229K against £222K owed within a year: 1.0 times cover.
- 6 employees on average during the year.
- Balance sheets on record for 2 years, 2025 to 2026.
Net assets by year
| Year end | Net assets | Cash | Current assets | Owed within a year | Employees |
|---|---|---|---|---|---|
| 31 May 2026 | £37K | £205K | £229K | £222K | 6 |
| 31 May 2025 | £15K | £71K | £123K | £142K | 6 |
Where Mark Thomas Services Ltd is registered
The registered office is in Hoddesdon (EN11), in the Broxbourne local authority area, East of England. Show EN11 8UR on a map.
Other trade companies in EN11
- Poto LtdBuilders
- PMB Electrical Services LtdElectricians
- A-Plus Finishes LtdPainters and decorators
- Paul the Plumber and Friends LtdPlumbers and heating engineers
- GRB Services LimitedPlumbers and heating engineers
- UK Tog Alliance LtdMotor traders
- Meridian Fortis Homes LtdProperty developers
- Blox Container Group LimitedInstallers
Shared registered office
47 companies on our pages use this registered office address. An address shared this widely is usually an accountant's office or a company formation agent's service address, not where the business trades from.
What happens if Mark Thomas 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 29 February 2028.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 1 Mar 2028 to 31 Mar 2028 | £150 |
| 1 to 3 months late | 1 Apr 2028 to 31 May 2028 | £375 |
| 3 to 6 months late | 1 Jun 2028 to 31 Aug 2028 | £750 |
| More than 6 months late | From 1 Sep 2028 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Jun 2028 | £200 |
| 3 months late | 31 Aug 2028 | another £200 |
| 6 months late | 30 Nov 2028 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 31 May 2029 | 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
- 15704587
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 7 May 2024 (2 years ago)
- Registered office
- Unit 2, Tower House, Hoddesdon, EN11 8UR
- Nature of business
- Plumbing, heat and air-conditioning installation (SIC 43220)
- Year end
- 31 May (accounting reference date)
- Accounts type
- Total exemption (full)
- Last accounts made up to
- 31 May 2026
- Last confirmation statement
- 6 August 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 Hoddesdon
Other active plumbing and heating companies registered in Hoddesdon.
- Nazeing Heating Limited1977
- Next Level Boiler Solutions Ltd2025
- Patora Plumbing and Mechanical Ltd2025
- Paul the Plumber and Friends Ltd2026
- Plumbistry Limited2009
- Prestige Plumbing & Heating Ltd2026
- Proheating 24/7 Ltd2017
- RJT Plumbing and Heating Limited2024
All plumbing and heating companies in Hoddesdon · All trades in Hoddesdon · Plumbers and heating engineers across the UK
Frequently asked questions
When are Mark Thomas Services Ltd's accounts due?
Mark Thomas Services Ltd's next accounts are due at Companies House by 29 February 2028 (in 505 days), covering the period to 31 May 2027.
When is Mark Thomas Services Ltd's CT600 due?
The CT600 for the period to 31 May 2027 is due at HMRC by 31 May 2028, 12 months after the period end. The corporation tax itself is payable earlier, by 1 March 2028.
Is Mark Thomas Services Ltd still trading?
Mark Thomas 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 Thomas Services Ltd do?
Mark Thomas Services Ltd is registered under Plumbing, heat and air-conditioning installation (SIC 43220).
How old is Mark Thomas Services Ltd?
Mark Thomas Services Ltd was incorporated on 7 May 2024, 2 years ago.
What is the penalty if Mark Thomas 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 Thomas 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.