PL Mech Ltd
- Company number
- 16231817
- Incorporated
- 5 Feb 20251 year trading
- Registered office
- 113 Stephenson Grove, Rainhill, Prescot, L35 9AB
- Nature of business
- Plumbing, heat and air-conditioning installation
PL Mech Ltd is a 1-year-old private limited company registered in Prescot, company number 16231817, one of 13 plumbing and heating companies in Prescot. Its next accounts are due at Companies House on 5 November 2026, and its first CT600 is due at HMRC on 4 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 PL Mech Ltd is registered
The registered office is in Prescot (L35), in the St. Helens local authority area, North West. Show L35 9AB on a map.
Other trade companies in L35
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- MPV Mini Digger and Dumper Hire LimitedGroundworks and demolition
- Latimer Landscapes LtdLandscapers and gardeners
- RW Solar Solutions LimitedElectricians
- Razor Precision Automotive LtdMechanics and garages
- Knoxbridge Developments Group LtdProperty developers
- Eco Smart Energy LimitedElectricians
What happens if PL Mech 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 5 November 2026.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 6 Nov 2026 to 5 Dec 2026 | £150 |
| 1 to 3 months late | 6 Dec 2026 to 5 Feb 2027 | £375 |
| 3 to 6 months late | 6 Feb 2027 to 5 May 2027 | £750 |
| More than 6 months late | From 6 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
- 16231817
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 5 February 2025 (1 year ago)
- Registered office
- 113 Stephenson Grove, Rainhill, Prescot, L35 9AB
- Nature of business
- Plumbing, heat and air-conditioning installation (SIC 43220)
- Year end
- 28 February (accounting reference date)
- Accounts type
- No accounts filed yet
- Last confirmation statement
- 4 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 Prescot
Other active plumbing and heating companies registered in Prescot.
- Prescot Plumbing & Heating Limited2017
- Viola Energy Ltd2020
- Aguaflo Ltd2006
- Clarson Gas Limited2011
- Gaia Energy Solutions Limited2020
- Haleian Heating and Plumbing Ltd2025
- Harrison E Jones Heating Limited2026
- K20 Plumbing Services Limited2022
All plumbing and heating companies in Prescot · All trades in Prescot · Plumbers and heating engineers across the UK
Frequently asked questions
When are PL Mech Ltd's accounts due?
PL Mech Ltd's next accounts are due at Companies House by 5 November 2026 (in 24 days), covering the period to 28 February 2026.
When is PL Mech 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 4 February 2026, due by 4 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 PL Mech Ltd still trading?
PL Mech 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 PL Mech Ltd do?
PL Mech Ltd is registered under Plumbing, heat and air-conditioning installation (SIC 43220).
How old is PL Mech Ltd?
PL Mech Ltd was incorporated on 5 February 2025, 1 year ago.
What is the penalty if PL Mech 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 PL Mech 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.