D E&P Limited
- Company number
- 16002805
- Incorporated
- 7 Oct 20242 years trading
- Registered office
- 90 Haymeads, Welwyn Garden City, AL8 7AE
- Nature of business
- Plumbing, heat and air-conditioning installation; Engineering related scientific and technical consulting activities
D E&P Limited is a 2-year-old private limited company registered in Welwyn Garden City, company number 16002805, one of 32 plumbing and heating companies in Welwyn Garden City. Its next accounts are due at Companies House on 31 July 2027, and the CT600 for the period to 31 October 2026 is due at HMRC on 31 October 2027.
Key dates
Worked out from the year end and filing history on the Companies House register.
Is this your company?
File the accounts to Companies House and the CT600 to HMRC yourself with A.X.E.L Filing. One set of questions, both filings, £49 flat. No accountant, no subscription.
File for D E&P LimitedOr get a reminder before each deadline
Free. We email you 60, 30, 14, 7 and 1 days before the accounts, CT600 and confirmation statement are due. Unsubscribe in one click.
Financial snapshot, 2025
From the balance sheet at 31 October 2025, as filed at Companies House. Negative net assets mean the company owed more than it owned at that date.
Where D E&P Limited is registered
The registered office is in Welwyn Garden City (AL8), in the Welwyn Hatfield local authority area, East of England. Show AL8 7AE on a map.
Other trade companies in AL8
- Reverie Autocare LtdMechanics and garages
- Al8 Plumbing LtdPlumbers and heating engineers
- JSP Commercial LtdSpecialist contractors
- Sure Shift Motors LtdMotor traders
- Elimef LtdCleaning companies
- Creative Driveway Solutions LimitedProperty developers
- LT Air Conditioning LimitedPlumbers and heating engineers
- Hertssparky LtdBuilders
Also registered at this address
1 other company uses the same registered office as D E&P Limited.
- Al8 Plumbing LtdPlumbers and heating engineers
What happens if D E&P 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 31 July 2027.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 1 Aug 2027 to 31 Aug 2027 | £150 |
| 1 to 3 months late | 1 Sep 2027 to 31 Oct 2027 | £375 |
| 3 to 6 months late | 1 Nov 2027 to 31 Jan 2028 | £750 |
| More than 6 months late | From 1 Feb 2028 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Nov 2027 | £200 |
| 3 months late | 31 Jan 2028 | another £200 |
| 6 months late | 30 Apr 2028 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 31 Oct 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
- 16002805
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 7 October 2024 (2 years ago)
- Registered office
- 90 Haymeads, Welwyn Garden City, AL8 7AE
- Nature of business
- Plumbing, heat and air-conditioning installation (SIC 43220)
Engineering related scientific and technical consulting activities (SIC 71122) - Year end
- 31 October (accounting reference date)
- Accounts type
- Micro-entity
- Last accounts made up to
- 31 October 2025
- Last confirmation statement
- 6 October 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 Welwyn Garden City
Other active plumbing and heating companies registered in Welwyn Garden City.
- Datchworth Heating Ltd2026
- Dynamo 24/7 Limited2014
- Flodoc Ltd2025
- GD Jones Plumbing & Heating Limited2026
- Heatcooler Limited2025
- Heating Management Ltd2012
- Herts Plumbing & Heating Ltd2008
- Hesse Gas Supply Ltd2024
All plumbing and heating companies in Welwyn Garden City · All trades in Welwyn Garden City · Plumbers and heating engineers across the UK
Frequently asked questions
When are D E&P Limited's accounts due?
D E&P Limited's next accounts are due at Companies House by 31 July 2027 (in 292 days), covering the period to 31 October 2026.
When is D E&P Limited's CT600 due?
The CT600 for the period to 31 October 2026 is due at HMRC by 31 October 2027, 12 months after the period end. The corporation tax itself is payable earlier, by 1 August 2027.
Is D E&P Limited still trading?
D E&P 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 D E&P Limited do?
D E&P Limited is registered under Plumbing, heat and air-conditioning installation (SIC 43220); Engineering related scientific and technical consulting activities (SIC 71122).
How old is D E&P Limited?
D E&P Limited was incorporated on 7 October 2024, 2 years ago.
What is the penalty if D E&P 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 D E&P 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.