- Companies
- Plumbers and heating engineers
- New Malden
- Winkler Heating Ltd
Winkler Heating Ltd
- Company number
- 10817097
- Incorporated
- 13 Jun 20179 years trading
- Registered office
- Unit 2, Second Floor, 39-41 High Street, New Malden, Surrey, KT3 4BY
- Nature of business
- Plumbing, heat and air-conditioning installation
Winkler Heating Ltd is a 9-year-old private limited company registered in New Malden, company number 10817097, one of 24 plumbing and heating companies in New Malden. 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.
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 Winkler Heating 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 £3,799 (+53.2%) on the year before, to £11K.
- Net assets rose in 4 of 7 year-on-year comparisons on record.
- Current assets of £46K against £35K owed within a year: 1.3 times cover.
- 1 employee on average during the year.
- 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 |
|---|---|---|---|---|---|
| 31 Mar 2025 | £11K | £46K | £35K | 1 | |
| 31 Mar 2024 | £7,140 | £28K | £19K | 1 | |
| 31 Mar 2023 | £12K | £26K | £9,772 | 1 | |
| 31 Mar 2022 | £8,964 | £39K | £43K | 1 | |
| 31 Mar 2021 | £4,908 | £44K | £44K | £52K | 1 |
| 31 Mar 2020 | £30K | £57K | £57K | £27K | 1 |
| 31 Mar 2019 | £73K | £108K | £127K | £54K | |
| 31 Mar 2018 | £28K | £23K | £46K | £18K |
Where Winkler Heating Ltd is registered
The registered office is in New Malden (KT3), in the Kingston upon Thames local authority area, London. Show KT3 4BY on a map.
Other trade companies in KT3
- Gas Net Group LtdPlumbers and heating engineers
- Four Square London LtdBuilders
- Car House LtdMotor traders
- Above and Beyond Holdings LtdLandscapers and gardeners
- Maz&Ace LtdMotor traders
- 00 Transport LtdMechanics and garages
- Denabuild Construction LtdBuilders
- PB Gardening LtdLandscapers and gardeners
Also registered at this address
2 other companies use the same registered office as Winkler Heating Ltd.
- Goldenkey Construction and Glazing LtdProperty developers
- Hitech Ems LtdProperty developers
What happens if Winkler 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 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
- 10817097
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 13 June 2017 (9 years ago)
- Registered office
- Unit 2, Second Floor, 39-41 High Street, New Malden, Surrey, KT3 4BY
- 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
- 28 July 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 New Malden
Other active plumbing and heating companies registered in New Malden.
- Boilergurus Installations Ltd2025
- Boilergurus Limited2020
- Boilergurus Repairs Ltd2026
- Commgas Limited2012
- Dab Installations Limited2006
- Drbrito Solutions Ltd2025
- Gas Net Group Ltd2026
- GHP Surrey Limited2012
All plumbing and heating companies in New Malden · All trades in New Malden · Plumbers and heating engineers across the UK
Frequently asked questions
When are Winkler Heating Ltd's accounts due?
Winkler Heating 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 Winkler Heating 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 Winkler Heating Ltd still trading?
Winkler 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 Winkler Heating Ltd do?
Winkler Heating Ltd is registered under Plumbing, heat and air-conditioning installation (SIC 43220).
How old is Winkler Heating Ltd?
Winkler Heating Ltd was incorporated on 13 June 2017, 9 years ago.
What is the penalty if Winkler 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 Winkler 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.