- Companies
- Plumbers and heating engineers
- King's Lynn
- D & B Plumbing & Mechanical Services Ltd
D & B Plumbing & Mechanical Services Ltd
- Company number
- 14594894
- Incorporated
- 16 Jan 20233 years trading
- Registered office
- Room 211, Chequer House, 12 King Street, King's Lynn, Norfolk, PE30 1ES
- Nature of business
- Plumbing, heat and air-conditioning installation
D & B Plumbing & Mechanical Services Ltd is a 3-year-old private limited company registered in King's Lynn, company number 14594894, one of 38 plumbing and heating companies in King's Lynn. Its next accounts are due at Companies House on 31 October 2026, and the CT600 for the period to 31 January 2026 is due at HMRC on 31 January 2027.
Key dates
Worked out from the year end and filing history on the Companies House register.
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Finances
From each year's balance sheet filed at Companies House. Small companies do not have to publish turnover or profit, so these are balance sheet figures.
- Net assets down £44K (-77.1%) on the year before, to £13K.
- Current assets of £74K against £63K owed within a year: 1.2 times cover.
- 2 employees on average during the year.
- Balance sheets on record for 2 years, 2024 to 2025.
Net assets by year
| Year end | Net assets | Cash | Current assets | Owed within a year | Employees |
|---|---|---|---|---|---|
| 31 Jan 2025 | £13K | £28K | £74K | £63K | 2 |
| 31 Jan 2024 | £57K | £48K | £135K | £79K | 2 |
Where D & B Plumbing & Mechanical Services Ltd is registered
The registered office is in King's Lynn (PE30), in the King's Lynn and West Norfolk local authority area, East of England. Show PE30 1ES on a map.
Other trade companies in PE30
- Fishers Building Services LtdBuilders
- Meadowfields Holdings LimitedBuilders
- Gotsell Plastering & Property LimitedPlasterers
- Meadowvale Holdings LimitedBuilders
- K D Motor Traders LtdMotor traders
- Squeegeeright LimitedCleaning companies
- LS Building Developments LimitedBuilders
- JC Labour LtdInstallers
Also registered at this address
4 other companies use the same registered office as D & B Plumbing & Mechanical Services Ltd.
- Go-Bright Exterior Cleaning LimitedCleaning companies
- Green Apple Group LtdSpecialist contractors
- Mars Automotive LtdMechanics and garages
- Roythorne & Son LtdMotor traders
What happens if D & B Plumbing & Mechanical 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 October 2026.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 1 Nov 2026 to 30 Nov 2026 | £150 |
| 1 to 3 months late | 1 Dec 2026 to 31 Jan 2027 | £375 |
| 3 to 6 months late | 1 Feb 2027 to 30 Apr 2027 | £750 |
| More than 6 months late | From 1 May 2027 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Feb 2027 | £200 |
| 3 months late | 30 Apr 2027 | another £200 |
| 6 months late | 31 Jul 2027 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 31 Jan 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
- 14594894
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 16 January 2023 (3 years ago)
- Registered office
- Room 211, Chequer House, 12 King Street, King's Lynn, Norfolk, PE30 1ES
- Nature of business
- Plumbing, heat and air-conditioning installation (SIC 43220)
- Year end
- 31 January (accounting reference date)
- Accounts type
- Total exemption (full)
- Last accounts made up to
- 31 January 2025
- Last confirmation statement
- 15 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 King's Lynn
Other active plumbing and heating companies registered in King's Lynn.
- Eastern Adaptations Limited2017
- Eastern Electrical Contractors (Norfolk) Ltd2022
- Eastern Gas Ltd2014
- Ehp Heating Ltd2016
- FF Plumbing and Renewables Ltd2026
- Gaswise (Ely) Ltd2023
- Hall Heating & Plumbing Services Ltd2016
- Heatom Ltd2014
All plumbing and heating companies in King's Lynn · All trades in King's Lynn · Plumbers and heating engineers across the UK
Frequently asked questions
When are D & B Plumbing & Mechanical Services Ltd's accounts due?
D & B Plumbing & Mechanical Services Ltd's next accounts are due at Companies House by 31 October 2026 (in 18 days), covering the period to 31 January 2026.
When is D & B Plumbing & Mechanical Services Ltd's CT600 due?
The CT600 for the period to 31 January 2026 is due at HMRC by 31 January 2027, 12 months after the period end. The corporation tax itself is payable earlier, by 1 November 2026.
Is D & B Plumbing & Mechanical Services Ltd still trading?
D & B Plumbing & Mechanical 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 D & B Plumbing & Mechanical Services Ltd do?
D & B Plumbing & Mechanical Services Ltd is registered under Plumbing, heat and air-conditioning installation (SIC 43220).
How old is D & B Plumbing & Mechanical Services Ltd?
D & B Plumbing & Mechanical Services Ltd was incorporated on 16 January 2023, 3 years ago.
What is the penalty if D & B Plumbing & Mechanical 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 D & B Plumbing & Mechanical 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.