- Companies
- Plumbers and heating engineers
- Watford
- Compson19 Ltd
Compson19 Ltd
- Company number
- 10911401
- Incorporated
- 11 Aug 20179 years trading
- Registered office
- Fao Workwell Accountancy Ground Floor East Hyde, 38 Clarendon Road, Watford, Hertfordshire, WD17 1HZ
- Nature of business
- Plumbing, heat and air-conditioning installation
Compson19 Ltd is a 9-year-old private limited company registered in Watford, company number 10911401, one of 124 plumbing and heating companies in Watford. Companies House shows its accounts as overdue: they were due on 31 August 2026.
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 £372 (-24.7%) on the year before, to -£1,877.
- Net assets rose in 0 of 6 year-on-year comparisons on record.
- Current assets of £5,067 against £6,944 owed within a year: 0.7 times cover.
- 1 employee on average, up from 0 the year before.
- Balance sheets on record for 7 years, 2018 to 2024.
Net assets by year
| Year end | Net assets | Cash | Current assets | Owed within a year | Employees |
|---|---|---|---|---|---|
| 31 Aug 2024 | -£1,877 | £5,067 | £6,944 | 1 | |
| 31 Aug 2023 | -£1,505 | £5,067 | £6,572 | 0 | |
| 31 Aug 2022 | -£1,295 | £0 | £5,067 | £6,362 | 1 |
| 31 Aug 2021 | -£997 | £1 | £7,774 | £8,771 | 1 |
| 31 Aug 2020 | £104 | £367 | £9,050 | £8,946 | 1 |
| 31 Aug 2019 | £228 | £27 | £7,425 | £7,197 | 1 |
| 31 Aug 2018 | £622 | £4 | £4,764 | £4,142 | 1 |
Where Compson19 Ltd is registered
The registered office is in Watford (WD17), in the Watford local authority area, England. Show WD17 1HZ on a map.
Other trade companies in WD17
- Ramauto LimitedMotor traders
- A1 Motors Watford LtdMechanics and garages
- Kola Brickwork LtdInstallers
- Appleby's Mechanical Services LtdPlumbers and heating engineers
- Kpu Services LtdProperty developers
- Highmark Investments LtdBuilders
- Boriama Private Office LimitedCleaning companies
- Oldsy Install LtdInstallers
Also registered at this address
10 other companies use the same registered office as Compson19 Ltd.
- Agu.Ud-Uchechukwuservices LtdCivil engineering
- BB Construction Engineering LtdSpecialist contractors
- Black Hawk Site Engineering LtdSpecialist contractors
- CF Civil Engineering LimitedCivil engineering
- DCH Engineering LtdGroundworks and demolition
- Grant Joinery / Building LtdSpecialist contractors
- Greenbury Construction LtdCivil engineering
- Line of Site LtdCivil engineering
- Maxmarshall Construction LtdSpecialist contractors
- PBR Engineering Services LtdSpecialist contractors
What happens if Compson19 Ltd files late
If the accounts reach Companies House today, the late filing penalty is £375 (£750 if last year's accounts were also late). It rises at each step below.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 1 Sep 2026 to 30 Sep 2026 | £150 |
| 1 to 3 months late | 1 Oct 2026 to 30 Nov 2026 | £375 |
| 3 to 6 months late | 1 Dec 2026 to 28 Feb 2027 | £750 |
| More than 6 months late | From 1 Mar 2027 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Dec 2026 | £200 |
| 3 months late | 28 Feb 2027 | another £200 |
| 6 months late | 30 May 2027 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 30 Nov 2027 | 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
- 10911401
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 11 August 2017 (9 years ago)
- Registered office
- Fao Workwell Accountancy Ground Floor East Hyde, 38 Clarendon Road, Watford, Hertfordshire, WD17 1HZ
- Nature of business
- Plumbing, heat and air-conditioning installation (SIC 43220)
- Year end
- 31 August (accounting reference date)
- Accounts type
- Micro-entity
- Last accounts made up to
- 31 August 2024
- Last confirmation statement
- 10 August 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 Watford
Other active plumbing and heating companies registered in Watford.
- CPB Gas Ltd2023
- D and J K Plumbing & Heating Ltd2021
- DBS Controls Limited2015
- DJML Heating Limited2016
- DM Heating & Plumbing Limited2016
- DPH Mechanical Ltd2016
- E&E Heating and Plumbing Ltd2020
- Ek Hydro-Tech Pro Limited2022
All plumbing and heating companies in Watford · All trades in Watford · Plumbers and heating engineers across the UK
Frequently asked questions
When are Compson19 Ltd's accounts due?
Compson19 Ltd's accounts were due at Companies House on 31 August 2026 and the register shows them as overdue.
When is Compson19 Ltd's CT600 due?
The first accounts cover more than 12 months, so there are two Company Tax Returns: one for the 12 months to 31 August 2025, due by 31 August 2026, and one for the period to 30 November 2025, due by 30 November 2026. Corporation tax is payable 9 months and 1 day after the end of each.
Is Compson19 Ltd still trading?
Compson19 Ltd is listed as active on the Companies House register (checked 13 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 Compson19 Ltd do?
Compson19 Ltd is registered under Plumbing, heat and air-conditioning installation (SIC 43220).
How old is Compson19 Ltd?
Compson19 Ltd was incorporated on 11 August 2017, 9 years ago.
What is the penalty if Compson19 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 Compson19 Ltd on Companies House for filed documents, officers and the full history.
Based on the Companies House register (snapshot 1 Oct 2026, rechecked 13 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.