- Companies
- Plumbers and heating engineers
- Thatcham
- Certi Plumbing Services Ltd
Certi Plumbing Services Ltd
- Company number
- 16094565
- Incorporated
- 21 Nov 20241 year trading
- Registered office
- Lindenmuth House, 37 Greenham Business Park, Thatcham, Uk, RG19 6HW
- Nature of business
- Plumbing, heat and air-conditioning installation
Certi Plumbing Services Ltd is a 1-year-old private limited company registered in Thatcham, company number 16094565, one of 32 plumbing and heating companies in Thatcham. Its next accounts are due at Companies House on 31 August 2027, and the CT600 for the period to 30 November 2026 is due at HMRC on 30 November 2027.
Key dates
Worked out from the year end and filing history on the Companies House register.
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Financial snapshot, 2025
From the balance sheet at 30 November 2025, as filed at Companies House.
Who runs and owns Certi Plumbing Services Ltd
From the Companies House register. Individuals are shown by initials only; the full register is on Companies House.
Officer
| Name | Role | Appointed |
|---|---|---|
| B*** M*** | Director | May 2025 |
1 former officer
| Name | Role | Appointed | Left |
|---|---|---|---|
| N*** T*** | Director | Nov 2024 | May 2025 |
Person with significant control
Where Certi Plumbing Services Ltd is registered
The registered office is in Thatcham (RG19), in the West Berkshire local authority area, South East. Show RG19 6HW on a map.
Other trade companies in RG19
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- Mra Road Logistics LtdMechanics and garages
- Civic Contracting Group LimitedElectricians
- Kingston Home & Property Care LtdInstallers
- Jewels Brickwork LtdBuilders
- Notelppa Capital Group LtdProperty developers
- Adal Studio LtdLandscapers and gardeners
- Clean Start Solutions LtdCleaning companies
Shared registered office
29 companies on our pages use this registered office address. An address shared this widely is usually an accountant's office or a company formation agent's service address, not where the business trades from.
What happens if Certi Plumbing Services 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 August 2027.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 1 Sep 2027 to 30 Sep 2027 | £150 |
| 1 to 3 months late | 1 Oct 2027 to 30 Nov 2027 | £375 |
| 3 to 6 months late | 1 Dec 2027 to 29 Feb 2028 | £750 |
| More than 6 months late | From 1 Mar 2028 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Dec 2027 | £200 |
| 3 months late | 29 Feb 2028 | another £200 |
| 6 months late | 30 May 2028 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 30 Nov 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
- 16094565
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 21 November 2024 (1 year ago)
- Registered office
- Lindenmuth House, 37 Greenham Business Park, Thatcham, Uk, RG19 6HW
- Nature of business
- Plumbing, heat and air-conditioning installation (SIC 43220)
- Year end
- 30 November (accounting reference date)
- Accounts type
- Micro-entity
- Last accounts made up to
- 30 November 2025
- Last confirmation statement
- 8 May 2026
- Previous names
- Preparation Is Key Ltd (until 9 May 2025)
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 Thatcham
Other active plumbing and heating companies registered in Thatcham.
- Cistus Limited2011
- Claridges Plumbing & Heating Services Limited2007
- CM26 Ltd2022
- D L T Plumbing & Heating Ltd2017
- Exclusive Facility Services Ltd2013
- F G Plumbing Services Limited2007
- Green Heating & Renewables Ltd2011
- JM Bathrooms and Design Ltd2021
All plumbing and heating companies in Thatcham · All trades in Thatcham · Plumbers and heating engineers across the UK
Frequently asked questions
When are Certi Plumbing Services Ltd's accounts due?
Certi Plumbing Services Ltd's next accounts are due at Companies House by 31 August 2027 (in 322 days), covering the period to 30 November 2026.
When is Certi Plumbing Services Ltd's CT600 due?
The CT600 for the period to 30 November 2026 is due at HMRC by 30 November 2027, 12 months after the period end. The corporation tax itself is payable earlier, by 1 September 2027.
Is Certi Plumbing Services Ltd still trading?
Certi Plumbing Services 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 Certi Plumbing Services Ltd do?
Certi Plumbing Services Ltd is registered under Plumbing, heat and air-conditioning installation (SIC 43220).
How old is Certi Plumbing Services Ltd?
Certi Plumbing Services Ltd was incorporated on 21 November 2024, 1 year ago.
Who runs Certi Plumbing Services Ltd?
Certi Plumbing Services Ltd has 1 active director, the longest-serving appointed in May 2025. Their names and service addresses are on the Companies House register.
Who owns Certi Plumbing Services Ltd?
One person or company has significant control of Certi Plumbing Services Ltd: an individual (owns 75% or more of the shares).
What is the penalty if Certi Plumbing Services 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 Certi Plumbing Services 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.