- Companies
- Plumbers and heating engineers
- London
- A M Plumbing & Heating Ltd
A M Plumbing & Heating Ltd
- Company number
- 10809396
- Incorporated
- 8 Jun 20179 years trading
- Registered office
- C/O Roseworth Limited, 662 High Road, London, N12 0NL
- Nature of business
- Plumbing, heat and air-conditioning installation
A M Plumbing & Heating Ltd is a 9-year-old private limited company registered in London, company number 10809396, one of 2,972 plumbing and heating companies in London. 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 up £75K (+130.6%) on the year before, to £133K.
- Net assets rose in 4 of 7 year-on-year comparisons on record.
- Current assets of £208K against £83K owed within a year: 2.5 times cover.
- No employees reported for the latest year (directors are often not counted as employees).
- Balance sheets on record for 8 years, 2018 to 2025.
Net assets by year
| Year end | Net assets | Cash | Current assets | Owed within a year | Employees |
|---|---|---|---|---|---|
| 30 Jun 2025 | £133K | £208K | £83K | 0 | |
| 30 Jun 2024 | £58K | £147K | £95K | 5 | |
| 30 Jun 2023 | £35K | £157K | £109K | 5 | |
| 30 Jun 2022 | £39K | £123K | £52K | 3 | |
| 30 Jun 2021 | £65K | £191K | £74K | 3 | |
| 30 Jun 2020 | £88 | £106K | £97K | 3 | |
| 30 Jun 2019 | £14K | £23K | £11K | ||
| 30 Jun 2018 | £5,541 | £13K | £9,730 |
Who runs and owns A M Plumbing & Heating Ltd
From the Companies House register. Individuals are shown by initials only; the full register is on Companies House.
Officer
| Name | Role | Appointed |
|---|---|---|
| A*** M*** | Director | Jun 2017 |
1 former officer
| Name | Role | Appointed | Left |
|---|---|---|---|
| A*** M*** | Secretary | Jun 2017 | Jun 2020 |
Person with significant control
Where A M Plumbing & Heating Ltd is registered
The registered office is in London (N12), in the Barnet local authority area, London. Show N12 0NL on a map.
Other trade companies in N12
- Sullivan Property and Maintenance LtdFacilities management
- Mael Property Services LtdFinishing trades
- Horizon Constructors LtdProperty developers
- Alfawine Group LimitedFinishing trades
- Sam Motors Group LimitedMotor traders
- Heating on Demand LtdPlumbers and heating engineers
- Premium Electrical LtdElectricians
- Amaiya Sparks LtdCleaning companies
Also registered at this address
13 other companies use the same registered office as A M Plumbing & Heating Ltd.
- Aa Group Contractors LtdProperty developers
- Ab Renewables LtdBuilders
- Agl Enviro LtdProperty developers
- Can Design & Construct LtdBuilders
- Horizon Constructors LtdProperty developers
- NB Plumbing & Heating (Al) LimitedPlumbers and heating engineers
- Rand Floors & Screeding LtdBuilders
- RK Civil Engineering LtdCivil engineering
- Smart Hand Group LtdJoiners and carpenters
- Structwell LimitedBuilders
- The London Builders Group LtdProperty developers
- THRC Construction LimitedBuilders
- Top Bathrooms LimitedSpecialist contractors
What happens if A M 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 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
- 10809396
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 8 June 2017 (9 years ago)
- Registered office
- C/O Roseworth Limited, 662 High Road, London, N12 0NL
- Nature of business
- Plumbing, heat and air-conditioning installation (SIC 43220)
- Year end
- 30 June (accounting reference date)
- Accounts type
- Micro-entity
- Last accounts made up to
- 30 June 2025
- Last confirmation statement
- 7 June 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 London
Other active plumbing and heating companies registered in London.
- A M Safe Flow Services Ltd2025
- A Star Heating and Plumbing Ltd2026
- A Star Plumbing Ltd2020
- A to Z Heating & Plumbing Services Ltd2016
- A&A Gasworks Limited2019
- A&A Systems Limited2025
- A&G Plumbing and Heating London Ltd2020
- A&H Heating and Gas Ltd2025
All plumbing and heating companies in London · All trades in London · Plumbers and heating engineers across the UK
Frequently asked questions
When are A M Plumbing & Heating Ltd's accounts due?
A M Plumbing & Heating Ltd's next accounts are due at Companies House by 31 March 2027 (in 168 days), covering the period to 30 June 2026.
When is A M Plumbing & Heating Ltd'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 A M Plumbing & Heating Ltd still trading?
A M 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 A M Plumbing & Heating Ltd do?
A M Plumbing & Heating Ltd is registered under Plumbing, heat and air-conditioning installation (SIC 43220).
How old is A M Plumbing & Heating Ltd?
A M Plumbing & Heating Ltd was incorporated on 8 June 2017, 9 years ago.
Who runs A M Plumbing & Heating Ltd?
A M Plumbing & Heating Ltd has 1 active director, the longest-serving appointed in Jun 2017. Their names and service addresses are on the Companies House register.
Who owns A M Plumbing & Heating Ltd?
One person or company has significant control of A M Plumbing & Heating Ltd: an individual (has significant influence or control).
What is the penalty if A M 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 A M 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.