- Companies
- Plumbers and heating engineers
- Wigan
- Diamond Drainage NW Ltd
Diamond Drainage NW Ltd
- Company number
- 16183258
- Incorporated
- 14 Jan 20251 year trading
- Registered office
- Wigan Investment Centre Office S7, CT3 Building, Waterside Drive, Wigan, WN3 5BA
- Nature of business
- Plumbing, heat and air-conditioning installation
Diamond Drainage NW Ltd is a 1-year-old private limited company registered in Wigan, company number 16183258, one of 144 plumbing and heating companies in Wigan. Its next accounts are due at Companies House on 31 October 2027, and the CT600 for the period to 31 January 2027 is due at HMRC on 31 January 2028.
Key dates
Worked out from the year end and filing history on the Companies House register.
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Where Diamond Drainage NW Ltd is registered
The registered office is in Wigan (WN3), in the Wigan local authority area, North West. Show WN3 5BA on a map.
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- Ag Construction and Demolition LtdInstallers
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Also registered at this address
14 other companies use the same registered office as Diamond Drainage NW Ltd.
- Bewsey Road Car Sales LimitedMotor traders
- Ecsa Construction LimitedSpecialist contractors
- Faulkner Motorsport LtdMechanics and garages
- Hampton Motors 2026 LtdMechanics and garages
- J&C Power Ltd.Civil engineering
- KTL Joinery LimitedJoiners and carpenters
- Logan Multi Utilities LtdCivil engineering
- New Phase Electrical Contractors LimitedElectricians
- Ryplas Building and Maintenance LimitedFinishing trades
- Salisbury Roofing Ltd.Roofers
- Simply Refresh LimitedCleaning companies
- SR Stove Installations LimitedPlumbers and heating engineers
- Tudor Plumbing & Heating LtdPlumbers and heating engineers
- Waderose Roofing LtdRoofers
What happens if Diamond Drainage NW 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 October 2027.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 1 Nov 2027 to 30 Nov 2027 | £150 |
| 1 to 3 months late | 1 Dec 2027 to 31 Jan 2028 | £375 |
| 3 to 6 months late | 1 Feb 2028 to 30 Apr 2028 | £750 |
| More than 6 months late | From 1 May 2028 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Feb 2028 | £200 |
| 3 months late | 30 Apr 2028 | another £200 |
| 6 months late | 31 Jul 2028 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 31 Jan 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
- 16183258
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 14 January 2025 (1 year ago)
- Registered office
- Wigan Investment Centre Office S7, CT3 Building, Waterside Drive, Wigan, WN3 5BA
- Nature of business
- Plumbing, heat and air-conditioning installation (SIC 43220)
- Year end
- 31 January (accounting reference date)
- Accounts type
- Micro-entity
- Last accounts made up to
- 31 January 2026
- Last confirmation statement
- 26 January 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 Wigan
Other active plumbing and heating companies registered in Wigan.
- DPB Plumbing and Bathrooms Ltd2026
- DPP Installations Ltd2018
- DPS Plumbing & Heating NW Ltd2018
- E.A.S.I. (Cooling) Limited2003
- Edgeway Heating Limited2006
- Eis Kalt (UK) Ltd2009
- F G Welch Central Heating & Gas Services Ltd2003
- Flame on Boiler Repairs Ltd.2010
All plumbing and heating companies in Wigan · All trades in Wigan · Plumbers and heating engineers across the UK
Frequently asked questions
When are Diamond Drainage NW Ltd's accounts due?
Diamond Drainage NW Ltd's next accounts are due at Companies House by 31 October 2027 (in 383 days), covering the period to 31 January 2027.
When is Diamond Drainage NW Ltd's CT600 due?
The CT600 for the period to 31 January 2027 is due at HMRC by 31 January 2028, 12 months after the period end. The corporation tax itself is payable earlier, by 1 November 2027.
Is Diamond Drainage NW Ltd still trading?
Diamond Drainage NW 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 Diamond Drainage NW Ltd do?
Diamond Drainage NW Ltd is registered under Plumbing, heat and air-conditioning installation (SIC 43220).
How old is Diamond Drainage NW Ltd?
Diamond Drainage NW Ltd was incorporated on 14 January 2025, 1 year ago.
What is the penalty if Diamond Drainage NW 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 Diamond Drainage NW 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.