- Companies
- Plumbers and heating engineers
- Spennymoor
- Specialists Leak Detection Ltd
Specialists Leak Detection Ltd
- Company number
- 15092416
- Incorporated
- 23 Aug 20233 years trading
- Registered office
- 4 King Street, Spennymoor, DL16 6QG
- Nature of business
- Plumbing, heat and air-conditioning installation
Specialists Leak Detection Ltd is a 3-year-old private limited company registered in Spennymoor, company number 15092416, one of 11 plumbing and heating companies in Spennymoor. Its next accounts are due at Companies House on 31 May 2027, and the CT600 for the period to 31 August 2026 is due at HMRC on 31 August 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 unchanged on the year before, at £0.
- No employees reported for the latest year (directors are often not counted as employees).
- 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 Aug 2025 | £0 | 0 | |||
| 31 Aug 2024 | £0 | 0 |
Where Specialists Leak Detection Ltd is registered
The registered office is in Spennymoor (DL16), in the County Durham local authority area, North East. Show DL16 6QG on a map.
Other trade companies in DL16
- Edmar Tyre & Exhaust Services LtdMechanics and garages
- Anderson Sweepers North East LimitedCleaning companies
- Ak Signature Cleaning LtdCleaning companies
- Forster House & Co LtdFloor and wall tilers
- Neic Group LtdCleaning companies
- CJP Auto Spa LimitedMechanics and garages
- THG Property Solutions LtdBuilders
- THG Newbuild Services LtdBuilders
Also registered at this address
20 other companies use the same registered office as Specialists Leak Detection Ltd.
- Ach Plumbing & Heating Specialists LimitedPlumbers and heating engineers
- CCL Access and Coatings LimitedSpecialist contractors
- Coxhoe Electrical Services LimitedElectricians
- D S Steelworks LtdInstallers
- D Sands Plumbing & Heating Services LtdPlumbers and heating engineers
- Deluxe Improvements LtdLandscapers and gardeners
- Fayzer LtdJoiners and carpenters
- G McKenzie Groundwork's LimitedSpecialist contractors
- Heatwave Plumbing and Heating (Ne) LimitedPlumbers and heating engineers
- Holmes & Sons Electrical Services LimitedElectricians
- Locktech (Ne) LimitedCleaning companies
- Minnikin Flooring Solutions LtdFloor and wall tilers
- Nealons Plastering Services LtdPlasterers
- Onflo LimitedPlumbers and heating engineers
- Paving the Way (Ne) LimitedLandscapers and gardeners
- PB Construction LtdFinishing trades
- Pickering Nook MOT Centre LimitedMechanics and garages
- Scantec Commercials LimitedMechanics and garages
- T&H Heating Solutions LtdPlumbers and heating engineers
- The Young Group LimitedPlumbers and heating engineers
What happens if Specialists Leak Detection 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 May 2027.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 1 Jun 2027 to 30 Jun 2027 | £150 |
| 1 to 3 months late | 1 Jul 2027 to 31 Aug 2027 | £375 |
| 3 to 6 months late | 1 Sep 2027 to 30 Nov 2027 | £750 |
| More than 6 months late | From 1 Dec 2027 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Sep 2027 | £200 |
| 3 months late | 30 Nov 2027 | another £200 |
| 6 months late | 29 Feb 2028 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 31 Aug 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
- 15092416
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 23 August 2023 (3 years ago)
- Registered office
- 4 King Street, Spennymoor, DL16 6QG
- Nature of business
- Plumbing, heat and air-conditioning installation (SIC 43220)
- Year end
- 31 August (accounting reference date)
- Accounts type
- Total exemption (full)
- Last accounts made up to
- 31 August 2025
- Last confirmation statement
- 22 August 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 Spennymoor
Other active plumbing and heating companies registered in Spennymoor.
- T&H Heating Solutions Ltd2023
- The Young Group Limited2021
- Ach Plumbing & Heating Specialists Limited2020
- Austin Pickering Heating Limited2006
- D Sands Plumbing & Heating Services Ltd2025
- Heatwave Plumbing and Heating (Ne) Limited2016
- JGM Heating Ltd2020
- Kitchen and Bathroom (Ne) Ltd2020
All plumbing and heating companies in Spennymoor · All trades in Spennymoor · Plumbers and heating engineers across the UK
Frequently asked questions
When are Specialists Leak Detection Ltd's accounts due?
Specialists Leak Detection Ltd's next accounts are due at Companies House by 31 May 2027 (in 230 days), covering the period to 31 August 2026.
When is Specialists Leak Detection Ltd's CT600 due?
The CT600 for the period to 31 August 2026 is due at HMRC by 31 August 2027, 12 months after the period end. The corporation tax itself is payable earlier, by 1 June 2027.
Is Specialists Leak Detection Ltd still trading?
Specialists Leak Detection Ltd is listed as active on the Companies House register (checked 13 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 Specialists Leak Detection Ltd do?
Specialists Leak Detection Ltd is registered under Plumbing, heat and air-conditioning installation (SIC 43220).
How old is Specialists Leak Detection Ltd?
Specialists Leak Detection Ltd was incorporated on 23 August 2023, 3 years ago.
What is the penalty if Specialists Leak Detection 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 Specialists Leak Detection Ltd on Companies House for filed documents, officers and the full history.
Based on the Companies House register (snapshot 1 Oct 2026, rechecked 13 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.