- Companies
- Plumbers and heating engineers
- Glasgow
- John Doherty and Co Ltd
John Doherty and Co Ltd
- Company number
- SC376789
- Incorporated
- 14 Apr 201016 years trading
- Registered office
- Atlantic House, 1A Cadogan Street, Glasgow, G2 6QE
- Nature of business
- Plumbing, heat and air-conditioning installation
John Doherty and Co Ltd is a 16-year-old private limited company registered in Glasgow, company number SC376789, one of 515 plumbing and heating companies in Glasgow. 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 down £11K (-1.4%) on the year before, to £774K.
- Net assets rose in 6 of 9 year-on-year comparisons on record.
- Current assets of £738K against £98K owed within a year: 7.6 times cover.
- 13 employees on average, down from 14 the year before.
- 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 |
|---|---|---|---|---|---|
| 31 Mar 2025 | £774K | £467K | £738K | £98K | 13 |
| 31 Mar 2024 | £785K | £517K | £802K | £131K | 14 |
| 31 Mar 2023 | £778K | £406K | £906K | £222K | 17 |
| 31 Mar 2022 | £670K | £438K | £803K | £190K | 16 |
| 31 Mar 2021 | £534K | £312K | £681K | £216K | 17 |
| 31 Mar 2020 | £427K | £214K | £588K | £204K | 21 |
| 31 Mar 2019 | £411K | £136K | £536K | £179K | 20 |
| 31 Mar 2018 | £272K | £152K | £375K | £154K | 19 |
| 31 Mar 2017 | £280K | £164K | £349K | £150K | 22 |
| 31 Mar 2016 | £304K | £205K | £365K | £123K |
Public contracts won
John Doherty and Co Ltd has 5 public sector contract awards on record, from 2021 to 2026. Source: Contracts Finder and Find a Tender award notices. For all of them the published figure is a shared or multi-year ceiling (a framework place, a multi-supplier award, or more than a small company could hold alone), so no value is shown. These were matched by the company's exact name because the notice gave no company number.
Awards by year
Main buyers
- West Dunbartonshire Council2 awards
- Dalmuir Park Housing Association1 award
- Trafalgar Housing Association Ltd1 award
- Oak Tree Housing Association Ltd1 award
| Buyer | Contract | Value | Awarded |
|---|---|---|---|
| Dalmuir Park Housing Association | Dalmuir Park HA Maintenance Framework 2026 | Ceiling, not shown | 22 May 2026 |
| Trafalgar Housing Association Ltd | Reactive Maintenance and Investment Works Contractor Framework - Plumbing Work | Ceiling, not shown | 20 Nov 2024 |
| Oak Tree Housing Association Ltd | Oak Tree Housing Association Out of Hours Reactive Repairs Contractor Framework | Ceiling, not shown | 18 Sep 2023 |
| West Dunbartonshire Council | Subcontractors and Specialist Contractors for Building Services | Ceiling, not shown | 12 Aug 2022 |
| West Dunbartonshire Council | Emergency Contract for Subcontractor services | Ceiling, not shown | 9 Mar 2021 |
Where John Doherty and Co Ltd is registered
The registered office is in Glasgow (G2), in the Glasgow City local authority area, Scotland. Show G2 6QE on a map.
Other trade companies in G2
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- Halcyon Sports Services LtdProperty developers
- Kiess & Co. Decorators LtdPainters and decorators
- The Three Sisters Furniture and Flooring LtdFloor and wall tilers
- Projectform Construction LtdJoiners and carpenters
- The Scaffold Network Scotland LtdScaffolders
- Hanlon Property Solutions LtdJoiners and carpenters
- Bellroc Mould Solutions LimitedPainters and decorators
Also registered at this address
1 other company uses the same registered office as John Doherty and Co Ltd.
- Facts Garage LimitedMechanics and garages
What happens if John Doherty and Co 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
- SC376789
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 14 April 2010 (16 years ago)
- Registered office
- Atlantic House, 1A Cadogan Street, Glasgow, G2 6QE
- 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
- 10 April 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 Glasgow
Other active plumbing and heating companies registered in Glasgow.
- John Fulton (Plumbers) Limited1973
- JRR Heating Plumbing & Electrical Ltd2020
- JS Properties (Scotland) Ltd2017
- JSL Plumbing Services Limited2015
- JV Heating (Scotland) Limited2007
- K Harris Plumbing & Heating Ltd2018
- K&P Pipe Solutions Ltd2022
- K.Brady Plumbing Ltd.2008
All plumbing and heating companies in Glasgow · All trades in Glasgow · Plumbers and heating engineers across the UK
Frequently asked questions
When are John Doherty and Co Ltd's accounts due?
John Doherty and Co 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 John Doherty and Co 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 John Doherty and Co Ltd still trading?
John Doherty and Co 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 John Doherty and Co Ltd do?
John Doherty and Co Ltd is registered under Plumbing, heat and air-conditioning installation (SIC 43220).
How old is John Doherty and Co Ltd?
John Doherty and Co Ltd was incorporated on 14 April 2010, 16 years ago.
Has John Doherty and Co Ltd won public sector contracts?
Yes. John Doherty and Co Ltd has 5 contract awards from public bodies on Contracts Finder and Find a Tender, most recently from Dalmuir Park Housing Association.
What is the penalty if John Doherty and Co 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 John Doherty and Co 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.