- Companies
- Plumbers and heating engineers
- Stevenage
- Thomas & Son Plumbing & Heating Ltd
Thomas & Son Plumbing & Heating Ltd
- Company number
- 15391587
- Incorporated
- 5 Jan 20242 years trading
- Registered office
- Building 18 Gateway 1000 Whittle Way, Arlington Business Park, Stevenage, Hertfordshire, SG1 2FP
- Nature of business
- Plumbing, heat and air-conditioning installation
Thomas & Son Plumbing & Heating Ltd is a 2-year-old private limited company registered in Stevenage, company number 15391587, one of 95 plumbing and heating companies in Stevenage. Its next accounts are due at Companies House on 31 October 2026, and the CT600 for the period to 31 January 2026 is due at HMRC on 31 January 2027.
Key dates
Worked out from the year end and filing history on the Companies House register.
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Where Thomas & Son Plumbing & Heating Ltd is registered
The registered office is in Stevenage (SG1), in the Stevenage local authority area, East of England. Show SG1 2FP on a map.
Other trade companies in SG1
- Masterplumbing&Heating LtdPlumbers and heating engineers
- Ohiggins Property Solutions LtdProperty developers
- Bird Detailing LtdCleaning companies
- Tedted Engineering LtdMechanics and garages
- DSS Facilities LtdFacilities management
- Macala Engineering LimitedSpecialist contractors
- Regency Detailing LtdMechanics and garages
- Ashtons Property Group LtdProperty developers
Shared registered office
52 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 Thomas & Son Plumbing & Heating 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 October 2026.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 1 Nov 2026 to 30 Nov 2026 | £150 |
| 1 to 3 months late | 1 Dec 2026 to 31 Jan 2027 | £375 |
| 3 to 6 months late | 1 Feb 2027 to 30 Apr 2027 | £750 |
| More than 6 months late | From 1 May 2027 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Feb 2027 | £200 |
| 3 months late | 30 Apr 2027 | another £200 |
| 6 months late | 31 Jul 2027 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 31 Jan 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
- 15391587
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 5 January 2024 (2 years ago)
- Registered office
- Building 18 Gateway 1000 Whittle Way, Arlington Business Park, Stevenage, Hertfordshire, SG1 2FP
- Nature of business
- Plumbing, heat and air-conditioning installation (SIC 43220)
- Year end
- 31 January (accounting reference date)
- Accounts type
- Total exemption (full)
- Last accounts made up to
- 31 January 2025
- Last confirmation statement
- 4 January 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 Stevenage
Other active plumbing and heating companies registered in Stevenage.
- Tibbys Aquastar Ltd2026
- Tyrer Plumbing & Heating Limited2022
- UK Ventilation Systems Ltd2019
- Vent Nest Limited2026
- VF Mechanical Ltd2014
- Vines Property Services Ltd2019
- Vital Plumbers Limited2011
- WMS Underfloor Heating Limited2014
All plumbing and heating companies in Stevenage · All trades in Stevenage · Plumbers and heating engineers across the UK
Frequently asked questions
When are Thomas & Son Plumbing & Heating Ltd's accounts due?
Thomas & Son Plumbing & Heating Ltd's next accounts are due at Companies House by 31 October 2026 (in 18 days), covering the period to 31 January 2026.
When is Thomas & Son Plumbing & Heating Ltd's CT600 due?
The CT600 for the period to 31 January 2026 is due at HMRC by 31 January 2027, 12 months after the period end. The corporation tax itself is payable earlier, by 1 November 2026.
Is Thomas & Son Plumbing & Heating Ltd still trading?
Thomas & Son Plumbing & Heating 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 Thomas & Son Plumbing & Heating Ltd do?
Thomas & Son Plumbing & Heating Ltd is registered under Plumbing, heat and air-conditioning installation (SIC 43220).
How old is Thomas & Son Plumbing & Heating Ltd?
Thomas & Son Plumbing & Heating Ltd was incorporated on 5 January 2024, 2 years ago.
What is the penalty if Thomas & Son Plumbing & Heating 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 Thomas & Son Plumbing & Heating 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.