- Companies
- Plumbers and heating engineers
- Dereham
- Tom Williamson Plumbing & Heating Ltd
Tom Williamson Plumbing & Heating Ltd
- Company number
- 12435749
- Incorporated
- 31 Jan 20206 years trading
- Registered office
- 24E Norwich Street, Dereham, NR19 1BX
- Nature of business
- Plumbing, heat and air-conditioning installation
Tom Williamson Plumbing & Heating Ltd is a 6-year-old private limited company registered in Dereham, company number 12435749, one of 31 plumbing and heating companies in Dereham. Its next accounts are due at Companies House on 31 October 2027, and the CT600 for the period to 31 January 2027 is due at HMRC on 31 January 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 £8,073 (+44.5%) on the year before, to £26K.
- Net assets rose in 3 of 5 year-on-year comparisons on record.
- Current assets of £22K against £41K owed within a year: 0.5 times cover.
- 2 employees on average during the year.
- Balance sheets on record for 6 years, 2021 to 2026.
Net assets by year
| Year end | Net assets | Cash | Current assets | Owed within a year | Employees |
|---|---|---|---|---|---|
| 31 Jan 2026 | £26K | £22K | £41K | 2 | |
| 31 Jan 2025 | £18K | £18K | £28K | 2 | |
| 31 Jan 2024 | £7,008 | £37K | £63K | 2 | |
| 31 Jan 2023 | £8,356 | £76K | £105K | 3 | |
| 31 Jan 2022 | £7,995 | £31K | £68K | 3 | |
| 31 Jan 2021 | £11K | £37K | £56K | 3 |
Where Tom Williamson Plumbing & Heating Ltd is registered
The registered office is in Dereham (NR19), in the Breckland local authority area, East of England. Show NR19 1BX on a map.
Other trade companies in NR19
- Bure Power LtdCivil engineering
- A&R Drylining LimitedCivil engineering
- Mac Carpentry & Bespoke Joinery LtdFinishing trades
- Randalls Gardening & Landscaping LimitedLandscapers and gardeners
- Randall Brothers LimitedInstallers
- Randalls Grounds Maintenance LimitedLandscapers and gardeners
- M & M Commercials LtdMechanics and garages
- Gutter Pro LimitedCleaning companies
Shared registered office
30 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 Tom Williamson 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 2027.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 1 Nov 2027 to 30 Nov 2027 | £150 |
| 1 to 3 months late | 1 Dec 2027 to 31 Jan 2028 | £375 |
| 3 to 6 months late | 1 Feb 2028 to 30 Apr 2028 | £750 |
| More than 6 months late | From 1 May 2028 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Feb 2028 | £200 |
| 3 months late | 30 Apr 2028 | another £200 |
| 6 months late | 31 Jul 2028 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 31 Jan 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
- 12435749
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 31 January 2020 (6 years ago)
- Registered office
- 24E Norwich Street, Dereham, NR19 1BX
- Nature of business
- Plumbing, heat and air-conditioning installation (SIC 43220)
- Year end
- 31 January (accounting reference date)
- Accounts type
- Micro-entity
- Last accounts made up to
- 31 January 2026
- Last confirmation statement
- 9 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 Dereham
Other active plumbing and heating companies registered in Dereham.
- Turner-Drury & Co Ltd2017
- WH Heating Services Limited2014
- Anglia Diamond Heating Services Limited2011
- Boiler Upgrade Ltd2023
- Bonners Plumbing and Heating Limited2017
- Brewster Heating Ltd2024
- C and B Bathrooms and Kitchens Ltd2022
- D J Thompson Limited2004
All plumbing and heating companies in Dereham · All trades in Dereham · Plumbers and heating engineers across the UK
Frequently asked questions
When are Tom Williamson Plumbing & Heating Ltd's accounts due?
Tom Williamson Plumbing & Heating Ltd's next accounts are due at Companies House by 31 October 2027 (in 383 days), covering the period to 31 January 2027.
When is Tom Williamson Plumbing & Heating Ltd's CT600 due?
The CT600 for the period to 31 January 2027 is due at HMRC by 31 January 2028, 12 months after the period end. The corporation tax itself is payable earlier, by 1 November 2027.
Is Tom Williamson Plumbing & Heating Ltd still trading?
Tom Williamson 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 Tom Williamson Plumbing & Heating Ltd do?
Tom Williamson Plumbing & Heating Ltd is registered under Plumbing, heat and air-conditioning installation (SIC 43220).
How old is Tom Williamson Plumbing & Heating Ltd?
Tom Williamson Plumbing & Heating Ltd was incorporated on 31 January 2020, 6 years ago.
What is the penalty if Tom Williamson 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 Tom Williamson 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.