- Companies
- Plumbers and heating engineers
- Welwyn Garden City
- Loui Plumbing Services Ltd
Loui Plumbing Services Ltd
- Company number
- 17123738
- Incorporated
- 29 Mar 2026
- Registered office
- 32 Eddington Crescent, Welwyn Garden City, AL7 4SQ
- Nature of business
- Plumbing, heat and air-conditioning installation
Loui Plumbing Services Ltd is a newly incorporated private limited company registered in Welwyn Garden City, company number 17123738, one of 32 plumbing and heating companies in Welwyn Garden City. Its next accounts are due at Companies House on 29 December 2027, and its first CT600 is due at HMRC on 28 March 2028.
Key dates
This company has not filed accounts yet. First accounts are due 21 months after incorporation, and the first period can run longer than a year.
Is this your company?
File the first 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 Loui Plumbing Services LtdOr 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.
Where Loui Plumbing Services Ltd is registered
The registered office is in Welwyn Garden City (AL7), in the Welwyn Hatfield local authority area, East of England. Show AL7 4SQ on a map.
Other trade companies in AL7
- Mechanicalwise LtdInstallers
- Azalea Services LimitedSpecialist contractors
- Malmech and Mannion LimitedMechanics and garages
- T&D Construction Group LtdFinishing trades
- Vertec Roofing and Building LtdRoofers
- Selectlane LtdMotor traders
- Af Pressure Washing LtdCleaning companies
- Jet Professional LtdCleaning companies
Also registered at this address
1 other company uses the same registered office as Loui Plumbing Services Ltd.
- Loui Gas Services LtdInstallers
What happens if Loui 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 29 December 2027.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 30 Dec 2027 to 29 Jan 2028 | £150 |
| 1 to 3 months late | 30 Jan 2028 to 29 Mar 2028 | £375 |
| 3 to 6 months late | 30 Mar 2028 to 29 Jun 2028 | £750 |
| More than 6 months late | From 30 Jun 2028 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Apr 2028 | £200 |
| 3 months late | 30 Jun 2028 | another £200 |
| 6 months late | 30 Sep 2028 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 31 Mar 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
- 17123738
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 29 March 2026
- Registered office
- 32 Eddington Crescent, Welwyn Garden City, AL7 4SQ
- Nature of business
- Plumbing, heat and air-conditioning installation (SIC 43220)
- Year end
- 31 March (accounting reference date)
- Accounts type
- No accounts filed yet
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.
- LT Air Conditioning Limited2026
- M E London Plumbing & Heating Ltd2022
- MMC Plumbing & Heating Limited2014
- Panoptic Plumbing Limited2022
- Pioneering Plumbing Ltd2019
- Pro Ventilation Ltd2016
- R E West Heating & Plumbing Limited2019
- SP Supplies Ltd2022
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 Loui Plumbing Services Ltd's accounts due?
Loui Plumbing Services Ltd's next accounts are due at Companies House by 29 December 2027 (in 443 days), covering the period to 31 March 2027.
When is Loui Plumbing Services Ltd's CT600 due?
The first accounts cover more than 12 months, so there are two Company Tax Returns: one for the 12 months to 28 March 2027, due by 28 March 2028, and one for the period to 31 March 2027, due by 31 March 2028. Corporation tax is payable 9 months and 1 day after the end of each.
Is Loui Plumbing Services Ltd still trading?
Loui 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 Loui Plumbing Services Ltd do?
Loui Plumbing Services Ltd is registered under Plumbing, heat and air-conditioning installation (SIC 43220).
How old is Loui Plumbing Services Ltd?
Loui Plumbing Services Ltd was incorporated on 29 March 2026, less than a year ago.
What is the penalty if Loui 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 Loui 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.