- Companies
- Plumbers and heating engineers
- Romford
- Plumb Lab Limited
Plumb Lab Limited
- Company number
- 16585174
- Incorporated
- 16 Jul 20251 year trading
- Registered office
- 8 Saffron Road, Romford, RM5 3ES
- Nature of business
- Plumbing, heat and air-conditioning installation
Plumb Lab Limited is a 1-year-old private limited company registered in Romford, company number 16585174, one of 163 plumbing and heating companies in Romford. Its next accounts are due at Companies House on 30 April 2028, and the CT600 for the period to 31 July 2027 is due at HMRC on 31 July 2028.
Key dates
Worked out from the year end and filing history on the Companies House register.
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Financial snapshot, 2026
From the balance sheet at 31 July 2026, as filed at Companies House.
Where Plumb Lab Limited is registered
The registered office is in Romford (RM5), in the Havering local authority area, London. Show RM5 3ES on a map.
Other trade companies in RM5
- Genny Clean LtdCleaning companies
- MRH Motorworks LtdMotor traders
- Hornet Interiors LimitedPlasterers
- Thiago Andrade LtdBuilders
- LLL Construction LtdProperty developers
- Driveworks Autos LtdMechanics and garages
- Ragu Builders LtdBuilders
- Morantis LtdInstallers
Also registered at this address
1 other company uses the same registered office as Plumb Lab Limited.
- Cospect Expert LtdBuilders
What happens if Plumb Lab Limited 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 April 2028.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 1 May 2028 to 31 May 2028 | £150 |
| 1 to 3 months late | 1 Jun 2028 to 31 Jul 2028 | £375 |
| 3 to 6 months late | 1 Aug 2028 to 31 Oct 2028 | £750 |
| More than 6 months late | From 1 Nov 2028 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Aug 2028 | £200 |
| 3 months late | 31 Oct 2028 | another £200 |
| 6 months late | 31 Jan 2029 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 31 Jul 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
- 16585174
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 16 July 2025 (1 year ago)
- Registered office
- 8 Saffron Road, Romford, RM5 3ES
- Nature of business
- Plumbing, heat and air-conditioning installation (SIC 43220)
- Year end
- 31 July (accounting reference date)
- Accounts type
- Total exemption (full)
- Last accounts made up to
- 31 July 2026
- Last confirmation statement
- 6 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 Romford
Other active plumbing and heating companies registered in Romford.
- Plumbing & Aircon Ltd2022
- Plumbing and Maintenance Ltd2019
- Plumbing Legends Ltd2024
- Plumbingas Ltd2024
- Plumbtek Solutions Ltd2023
- PM Barry Limited2020
- PMK Developments Ltd2016
- Power Drainage & Plumbing Services Ltd2013
All plumbing and heating companies in Romford · All trades in Romford · Plumbers and heating engineers across the UK
Frequently asked questions
When are Plumb Lab Limited's accounts due?
Plumb Lab Limited's next accounts are due at Companies House by 30 April 2028 (in 566 days), covering the period to 31 July 2027.
When is Plumb Lab Limited's CT600 due?
The CT600 for the period to 31 July 2027 is due at HMRC by 31 July 2028, 12 months after the period end. The corporation tax itself is payable earlier, by 1 May 2028.
Is Plumb Lab Limited still trading?
Plumb Lab Limited 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 Plumb Lab Limited do?
Plumb Lab Limited is registered under Plumbing, heat and air-conditioning installation (SIC 43220).
How old is Plumb Lab Limited?
Plumb Lab Limited was incorporated on 16 July 2025, 1 year ago.
What is the penalty if Plumb Lab Limited 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 Plumb Lab Limited 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.