- Companies
- Plumbers and heating engineers
- Dumfries
- W. Johnstone & Sons Limited
W. Johnstone & Sons Limited
- Company number
- SC251742
- Incorporated
- 25 Jun 200323 years trading
- Registered office
- 23 George Street, Dumfries, DG1 1EA
- Nature of business
- Plumbing, heat and air-conditioning installation
W. Johnstone & Sons Limited is a 23-year-old private limited company registered in Dumfries, company number SC251742, one of 23 plumbing and heating companies in Dumfries. Its next accounts are due at Companies House on 31 March 2027, and the CT600 for the period to 30 June 2026 is due at HMRC on 30 June 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 down £3,855 (-1.2%) on the year before, to £317K.
- Net assets rose in 5 of 9 year-on-year comparisons on record.
- Current assets of £402K against £140K owed within a year: 2.9 times cover.
- No employees reported for the latest year (directors are often not counted as employees).
- Balance sheets on record for 10 years, 2016 to 2025.
Net assets by year
| Year end | Net assets | Cash | Current assets | Owed within a year | Employees |
|---|---|---|---|---|---|
| 30 Jun 2025 | £317K | £0 | £402K | £140K | 0 |
| 30 Jun 2024 | £321K | £25K | £427K | £171K | 12 |
| 30 Jun 2023 | £338K | £5,439 | £427K | £182K | 14 |
| 30 Jun 2022 | £400K | £1,806 | £468K | £143K | 14 |
| 30 Jun 2021 | £394K | £129K | £468K | £162K | 14 |
| 30 Jun 2020 | £334K | £57K | £313K | £61K | 15 |
| 30 Jun 2019 | £353K | £104K | £405K | £116K | |
| 30 Jun 2018 | £302K | £99K | £352K | £111K | |
| 30 Jun 2017 | £278K | £349K | £115K | ||
| 30 Jun 2016 | £259K | £35K | £310K | £127K |
Where W. Johnstone & Sons Limited is registered
The registered office is in Dumfries (DG1), in the Dumfries and Galloway local authority area, Scotland. Show DG1 1EA on a map.
Other trade companies in DG1
- Rooftek Roofing LtdRoofers
- K&M Tyre Services LtdMechanics and garages
- Rory Porteous Plumbing & Heating LimitedPlumbers and heating engineers
- Unique Landscapes & Stonecraft LimitedSpecialist contractors
- Eml Garage Car Sales LtdMotor traders
- Dca Contracting LimitedSpecialist contractors
- Dbdoorsandfloors LimitedJoiners and carpenters
- Ingram Electrical & Property Services LtdMachinery repair and installation
Also registered at this address
13 other companies use the same registered office as W. Johnstone & Sons Limited.
- A M Plumbing LimitedPlumbers and heating engineers
- Carson Landscapes LimitedLandscapers and gardeners
- Carsons Tree Surgery LimitedLandscapers and gardeners
- Donnan Construction LimitedCivil engineering
- Fortnum & Woolley LimitedBuilders
- Huntingdon Garage LimitedMotor traders
- KD Muirhead LimitedPlumbers and heating engineers
- McKeown Groundworks LimitedGroundworks and demolition
- Milroy Heating LtdPlumbers and heating engineers
- Nith Valley Construction LimitedGroundworks and demolition
- Ringford Vehicle Services LtdMechanics and garages
- Sia Steel Erection & Cladding LtdBuilders
- Southern Tractors LimitedMachinery repair and installation
What happens if W. Johnstone & Sons Limited 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 March 2027.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 1 Apr 2027 to 30 Apr 2027 | £150 |
| 1 to 3 months late | 1 May 2027 to 30 Jun 2027 | £375 |
| 3 to 6 months late | 1 Jul 2027 to 30 Sep 2027 | £750 |
| More than 6 months late | From 1 Oct 2027 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Jul 2027 | £200 |
| 3 months late | 30 Sep 2027 | another £200 |
| 6 months late | 30 Dec 2027 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 30 Jun 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
- SC251742
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 25 June 2003 (23 years ago)
- Registered office
- 23 George Street, Dumfries, DG1 1EA
- Nature of business
- Plumbing, heat and air-conditioning installation (SIC 43220)
- Year end
- 30 June (accounting reference date)
- Accounts type
- Total exemption (full)
- Last accounts made up to
- 30 June 2025
- Last confirmation statement
- 25 June 2026
- Charges (mortgages)
- 1 outstanding of 1 registered
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 Dumfries
Other active plumbing and heating companies registered in Dumfries.
- A M Plumbing Limited2004
- Alan Kirk Plumbing & Heating Ltd2016
- Andy Thom Plumbing & Heating Limited2018
- Asd Gas Services Ltd2023
- Cool & Easy Ltd2015
- Cool & Easy Renewables Limited2022
- Copper Ball Plumbing Services Limited2017
- Dalziel Plumbing & Heating Limited2018
All plumbing and heating companies in Dumfries · All trades in Dumfries · Plumbers and heating engineers across the UK
Frequently asked questions
When are W. Johnstone & Sons Limited's accounts due?
W. Johnstone & Sons Limited's next accounts are due at Companies House by 31 March 2027 (in 169 days), covering the period to 30 June 2026.
When is W. Johnstone & Sons Limited's CT600 due?
The CT600 for the period to 30 June 2026 is due at HMRC by 30 June 2027, 12 months after the period end. The corporation tax itself is payable earlier, by 1 April 2027.
Is W. Johnstone & Sons Limited still trading?
W. Johnstone & Sons Limited 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 W. Johnstone & Sons Limited do?
W. Johnstone & Sons Limited is registered under Plumbing, heat and air-conditioning installation (SIC 43220).
How old is W. Johnstone & Sons Limited?
W. Johnstone & Sons Limited was incorporated on 25 June 2003, 23 years ago.
What is the penalty if W. Johnstone & Sons Limited 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 W. Johnstone & Sons Limited 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.