Pwmech Ltd
- Company number
- 16224267
- Incorporated
- 3 Feb 20251 year trading
- Registered office
- Flat 86, Chaucer House, Chaucer Gardens, Sutton, SM1 2QT
- Nature of business
- Plumbing, heat and air-conditioning installation; Other engineering activities
Pwmech Ltd is a 1-year-old private limited company registered in Sutton, company number 16224267, one of 114 plumbing and heating companies in Sutton. Its next accounts are due at Companies House on 3 November 2026, and its first CT600 is due at HMRC on 2 February 2027.
Key dates
This company has not filed accounts yet. First accounts are due 21 months after incorporation, and the first period can run longer than a year.
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Financial snapshot, 2026
From the balance sheet at 28 February 2026, as filed at Companies House.
Where Pwmech Ltd is registered
The registered office is in Sutton (SM1), in the Sutton local authority area, London. Show SM1 2QT on a map.
Other trade companies in SM1
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- Pivotal Cleaning LtdCleaning companies
- Patchs Builder LimitedFinishing trades
- Leo Windows LimitedGlaziers
- MJG Motorworks LtdMechanics and garages
- Macgregor Landscapes and Gardens LtdLandscapers and gardeners
What happens if Pwmech 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 3 November 2026.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 4 Nov 2026 to 3 Dec 2026 | £150 |
| 1 to 3 months late | 4 Dec 2026 to 3 Feb 2027 | £375 |
| 3 to 6 months late | 4 Feb 2027 to 3 May 2027 | £750 |
| More than 6 months late | From 4 May 2027 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Mar 2027 | £200 |
| 3 months late | 28 May 2027 | another £200 |
| 6 months late | 28 Aug 2027 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 28 Feb 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
- 16224267
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 3 February 2025 (1 year ago)
- Registered office
- Flat 86, Chaucer House, Chaucer Gardens, Sutton, SM1 2QT
- Nature of business
- Plumbing, heat and air-conditioning installation (SIC 43220)
Other engineering activities (SIC 71129) - Year end
- 28 February (accounting reference date)
- Accounts type
- No accounts filed yet
- Last confirmation statement
- 2 February 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 Sutton
Other active plumbing and heating companies registered in Sutton.
- RCB Plumbing Ltd2019
- Rhoden Engineering Services Ltd2022
- RJ Newson Mechanical Services Ltd2026
- Rowlen Boiler Services Ltd2016
- Russell Haskins Heating & Plumbing Limited2009
- S Moger Ductwork Services Ltd2015
- Sale Nugen Limited2009
- SDC Heating Services Limited2011
All plumbing and heating companies in Sutton · All trades in Sutton · Plumbers and heating engineers across the UK
Frequently asked questions
When are Pwmech Ltd's accounts due?
Pwmech Ltd's next accounts are due at Companies House by 3 November 2026 (in 21 days), covering the period to 28 February 2026.
When is Pwmech 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 2 February 2026, due by 2 February 2027, and one for the period to 28 February 2026, due by 28 February 2027. Corporation tax is payable 9 months and 1 day after the end of each.
Is Pwmech Ltd still trading?
Pwmech 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 Pwmech Ltd do?
Pwmech Ltd is registered under Plumbing, heat and air-conditioning installation (SIC 43220); Other engineering activities (SIC 71129).
How old is Pwmech Ltd?
Pwmech Ltd was incorporated on 3 February 2025, 1 year ago.
What is the penalty if Pwmech 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 Pwmech 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.