- Companies
- Plumbers and heating engineers
- Northallerton
- S.Williams Plumbing and Heating Ltd
S.Williams Plumbing and Heating Ltd
- Company number
- 10028882
- Incorporated
- 26 Feb 201610 years trading
- Registered office
- 35 Linden Road, Northallerton, DL6 1HU
- Nature of business
- Plumbing, heat and air-conditioning installation
S.Williams Plumbing and Heating Ltd is a 10-year-old private limited company registered in Northallerton, company number 10028882, one of 15 plumbing and heating companies in Northallerton. Its next accounts are due at Companies House on 31 December 2026, and the CT600 for the period to 31 March 2026 is due at HMRC on 31 March 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 £39K (+43.8%) on the year before, to £129K.
- Net assets rose in 8 of 9 year-on-year comparisons on record.
- Current assets of £134K against £17K owed within a year: 8.1 times cover.
- 1 employee on average during the year.
- Balance sheets on record for 10 years, 2017 to 2025.
Net assets by year
| Year end | Net assets | Cash | Current assets | Owed within a year | Employees |
|---|---|---|---|---|---|
| 31 Mar 2025 | £129K | £125K | £134K | £17K | 1 |
| 31 Mar 2024 | £90K | £99K | £103K | £17K | 1 |
| 31 Mar 2023 | £63K | £58K | £63K | £5,366 | 1 |
| 30 Mar 2022 | £57K | £53K | £58K | £7,529 | 1 |
| 30 Mar 2021 | £51K | £50K | £55K | £13K | 1 |
| 30 Mar 2020 | £43K | £43K | £55K | £19K | 1 |
| 30 Mar 2019 | £27K | £37K | £40K | £18K | 1 |
| 31 Mar 2018 | £17K | £25K | £30K | £15K | 1 |
| 30 Mar 2018 | £17K | £25K | £30K | £15K | 1 |
| 31 Mar 2017 | £7,036 | £18K | £20K | £15K | 1 |
Where S.Williams Plumbing and Heating Ltd is registered
The registered office is in Northallerton (DL6), in the North Yorkshire local authority area, Yorkshire and The Humber. Show DL6 1HU on a map.
Other trade companies in DL6
- Matthew Baker Plumbing Heating & Bathrooms LtdPlumbers and heating engineers
- Dales Property Projects LtdProperty developers
- Lambourne Machinery Solutions LtdMachinery repair and installation
- Alan Badger LtdPlumbers and heating engineers
- MW Contracting Yorkshire LtdMechanics and garages
- North Bloom LtdLandscapers and gardeners
- Dobson Auto Repairs LtdMechanics and garages
- Brompton MOT Centre LtdMechanics and garages
What happens if S.Williams Plumbing and 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 December 2026.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 1 Jan 2027 to 31 Jan 2027 | £150 |
| 1 to 3 months late | 1 Feb 2027 to 31 Mar 2027 | £375 |
| 3 to 6 months late | 1 Apr 2027 to 30 Jun 2027 | £750 |
| More than 6 months late | From 1 Jul 2027 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Apr 2027 | £200 |
| 3 months late | 30 Jun 2027 | another £200 |
| 6 months late | 30 Sep 2027 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 31 Mar 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
- 10028882
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 26 February 2016 (10 years ago)
- Registered office
- 35 Linden Road, Northallerton, DL6 1HU
- Nature of business
- Plumbing, heat and air-conditioning installation (SIC 43220)
- Year end
- 31 March (accounting reference date)
- Accounts type
- Total exemption (full)
- Last accounts made up to
- 31 March 2025
- Last confirmation statement
- 25 February 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 Northallerton
Other active plumbing and heating companies registered in Northallerton.
- Temporary Boiler Company Ltd2023
- Alan Badger Ltd2026
- G R Ductwork Installation Ltd2003
- H Clarke & Sons Limited2003
- Harry Clarke and Sons Limited2008
- HT Energy Limited1999
- JHK Biomass Services Ltd2022
- Lightfoot Plumbing & Heating Limited2010
All plumbing and heating companies in Northallerton · All trades in Northallerton · Plumbers and heating engineers across the UK
Frequently asked questions
When are S.Williams Plumbing and Heating Ltd's accounts due?
S.Williams Plumbing and Heating Ltd's next accounts are due at Companies House by 31 December 2026 (in 79 days), covering the period to 31 March 2026.
When is S.Williams Plumbing and Heating Ltd's CT600 due?
The CT600 for the period to 31 March 2026 is due at HMRC by 31 March 2027, 12 months after the period end. The corporation tax itself is payable earlier, by 1 January 2027.
Is S.Williams Plumbing and Heating Ltd still trading?
S.Williams Plumbing and 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 S.Williams Plumbing and Heating Ltd do?
S.Williams Plumbing and Heating Ltd is registered under Plumbing, heat and air-conditioning installation (SIC 43220).
How old is S.Williams Plumbing and Heating Ltd?
S.Williams Plumbing and Heating Ltd was incorporated on 26 February 2016, 10 years ago.
What is the penalty if S.Williams Plumbing and 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 S.Williams Plumbing and 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.