- Companies
- Plumbers and heating engineers
- A1 Heating & Plumbing (London) Ltd
A1 Heating & Plumbing (London) Ltd
- Company number
- 11802259
- Incorporated
- 1 Feb 20197 years trading
- Registered office
- Office 1, Rear of 37 Station Road, Belmont, Surrey, SM2 6DF
- Nature of business
- Plumbing, heat and air-conditioning installation
A1 Heating & Plumbing (London) Ltd is a 7-year-old private limited company registered in Belmont, company number 11802259, one of the UK's plumbing and heating companies. Its next accounts are due at Companies House on 30 November 2027, and the CT600 for the period to 28 February 2027 is due at HMRC on 28 February 2028.
Key dates
Worked out from the year end and filing history on the Companies House register.
Is this your company?
File the accounts to Companies House and the CT600 to HMRC yourself with A.X.E.L Filing. One set of questions, both filings, £49 flat. No accountant, no subscription.
File for A1 Heating & Plumbing (London) LtdOr get a reminder before each deadline
Free. We email you 60, 30, 14, 7 and 1 days before the accounts, CT600 and confirmation statement are due. Unsubscribe in one click.
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 £36K (+38.5%) on the year before, to £131K.
- Net assets rose in 5 of 7 year-on-year comparisons on record.
- Current assets of £310K against £181K owed within a year: 1.7 times cover.
- 7 employees on average, down from 8 the year before.
- Balance sheets on record for 8 years, 2020 to 2026.
Net assets by year
| Year end | Net assets | Cash | Current assets | Owed within a year | Employees |
|---|---|---|---|---|---|
| 28 Feb 2026 | £131K | £204K | £310K | £181K | 7 |
| 28 Feb 2025 | £95K | £128K | £221K | £119K | 8 |
| 29 Feb 2024 | £51K | £117K | £147K | £84K | 7 |
| 28 Feb 2023 | £40K | £91K | £126K | £71K | 6 |
| 28 Feb 2022 | £28K | £49K | £73K | £30K | 6 |
| 28 Feb 2021 | £35K | £72K | £91K | £42K | 3 |
| 29 Feb 2020 | £171 | £6,209 | £23K | £24K | 1 |
| 28 Feb 2020 | £171 | £6,209 | £23K | £24K | 1 |
Where A1 Heating & Plumbing (London) Ltd is registered
The registered office is in Belmont (SM2), in the Sutton local authority area, London. Show SM2 6DF on a map.
Other trade companies in SM2
- Stent Projects London LtdBuilders
- Ry Rigging Services LtdInstallers
- JP Plumbing, Heating & Drainage Solutions LtdPlumbers and heating engineers
- MR & Sons Roofing & Building LtdBuilders
- Velora Facilities LimitedCleaning companies
- Sparkle Shark LtdCleaning companies
- GL Building Solutions LtdBuilders
- Bespoke Air Design and Installation LimitedPlumbers and heating engineers
Also registered at this address
2 other companies use the same registered office as A1 Heating & Plumbing (London) Ltd.
- A1 Group (London) LtdFinishing trades
- DD Autofix LtdMechanics and garages
What happens if A1 Heating & Plumbing (London) 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 30 November 2027.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 1 Dec 2027 to 31 Dec 2027 | £150 |
| 1 to 3 months late | 1 Jan 2028 to 29 Feb 2028 | £375 |
| 3 to 6 months late | 1 Mar 2028 to 31 May 2028 | £750 |
| More than 6 months late | From 1 Jun 2028 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 29 Feb 2028 | £200 |
| 3 months late | 28 May 2028 | another £200 |
| 6 months late | 28 Aug 2028 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 28 Feb 2029 | 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
- 11802259
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 1 February 2019 (7 years ago)
- Registered office
- Office 1, Rear of 37 Station Road, Belmont, Surrey, SM2 6DF
- Nature of business
- Plumbing, heat and air-conditioning installation (SIC 43220)
- Year end
- 28 February (accounting reference date)
- Accounts type
- Total exemption (full)
- Last accounts made up to
- 28 February 2026
- Last confirmation statement
- 31 January 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
Other active plumbing and heating companies.
- Prestige Plumbing Specialists Ltd2019
- Zebra Boilers, Plumbing and Heating Limited2019
- Opus Plumbing and Heating Limited2019
- HW Plumbing & Heating Limited2019
- Gas Force Direct Heating and Cooling Ltd2019
- C Hatherall Plumbing & Heating Limited2019
- Drips Plumbing & Heating Limited2019
- Ductwork Damper Maintenance Ltd2019
Frequently asked questions
When are A1 Heating & Plumbing (London) Ltd's accounts due?
A1 Heating & Plumbing (London) Ltd's next accounts are due at Companies House by 30 November 2027 (in 412 days), covering the period to 28 February 2027.
When is A1 Heating & Plumbing (London) Ltd's CT600 due?
The CT600 for the period to 28 February 2027 is due at HMRC by 28 February 2028, 12 months after the period end. The corporation tax itself is payable earlier, by 1 December 2027.
Is A1 Heating & Plumbing (London) Ltd still trading?
A1 Heating & Plumbing (London) 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 A1 Heating & Plumbing (London) Ltd do?
A1 Heating & Plumbing (London) Ltd is registered under Plumbing, heat and air-conditioning installation (SIC 43220).
How old is A1 Heating & Plumbing (London) Ltd?
A1 Heating & Plumbing (London) Ltd was incorporated on 1 February 2019, 7 years ago.
What is the penalty if A1 Heating & Plumbing (London) 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 A1 Heating & Plumbing (London) 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.