- Companies
- Plumbers and heating engineers
- London
- TNS Building Services Ltd
TNS Building Services Ltd
- Company number
- 13377065
- Incorporated
- 5 May 20215 years trading
- Registered office
- 105 Thornsbeach Road, London, SE6 1EY
- Nature of business
- Plumbing, heat and air-conditioning installation
TNS Building Services Ltd is a 5-year-old private limited company registered in London, company number 13377065, one of 2,972 plumbing and heating companies in London. Its next accounts are due at Companies House on 28 February 2027, and the CT600 for the period to 29 May 2026 is due at HMRC on 29 May 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 £32 (-9.1%) on the year before, to £319.
- Net assets rose in 1 of 3 year-on-year comparisons on record.
- Current assets of £1,322 against £1,003 owed within a year: 1.3 times cover.
- 1 employee on average during the year.
- Balance sheets on record for 4 years, 2022 to 2025.
Net assets by year
| Year end | Net assets | Cash | Current assets | Owed within a year | Employees |
|---|---|---|---|---|---|
| 29 May 2025 | £319 | £1,322 | £1,003 | 1 | |
| 29 May 2024 | £351 | £2,001 | £1,650 | 1 | |
| 29 May 2023 | £477 | £5,054 | £4,577 | 1 | |
| 30 May 2022 | £100 | £100 | 1 |
Where TNS Building Services Ltd is registered
The registered office is in London (SE6), in the Lewisham local authority area, London. Show SE6 1EY on a map.
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- GB Roof Revive LtdPainters and decorators
- Wilson Electrical & Son LtdElectricians
- Hom22 Services LtdCleaning companies
- Above Lifestyle LimitedProperty developers
- DLS Professional Cleaning Services LtdCleaning companies
- Supremcleaning LtdCleaning companies
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Also registered at this address
23 other companies use the same registered office as TNS Building Services Ltd.
- 5TH Gear Motor Company LtdMotor traders
- All Round Maintenance and Property Services LimitedFinishing trades
- Apex Su Construction LimitedBuilders
- BBS Construction Services LtdBuilders
- Bensonandbensonandsons LtdMotor traders
- Bromley Car Sales & Services LtdMotor traders
- Bromley Car Sales LtdMotor traders
- Con's Cleaning LtdCleaning companies
- Dulverton Cleaning Services LimitedCleaning companies
- DXT Appliances LimitedRepair services
- Es Building Maintenance LtdProperty developers
- Eskigi Construction LtdProperty developers
- Et.Zulo (T/A G.W.M Bodyworks) LimitedMechanics and garages
- Kelevra 2026 LtdFinishing trades
- Oscars Traders and Services LimitedMotor traders
- Positive Roofing LtdRoofers
- Sulay Cenkciler Auto Gallery LtdMotor traders
- TG Initiatives LimitedMotor traders
- Tiled Up LimitedFinishing trades
- TS Renewable Service LimitedMachinery repair and installation
- Unicus Electrical LimitedElectricians
- Universal Plumbing and Heating Engineers LimitedPlumbers and heating engineers
- Universal Plumbing and Heating LtdPlumbers and heating engineers
What happens if TNS Building 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 28 February 2027.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 1 Mar 2027 to 31 Mar 2027 | £150 |
| 1 to 3 months late | 1 Apr 2027 to 31 May 2027 | £375 |
| 3 to 6 months late | 1 Jun 2027 to 31 Aug 2027 | £750 |
| More than 6 months late | From 1 Sep 2027 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 30 May 2027 | £200 |
| 3 months late | 29 Aug 2027 | another £200 |
| 6 months late | 29 Nov 2027 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 29 May 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
- 13377065
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 5 May 2021 (5 years ago)
- Registered office
- 105 Thornsbeach Road, London, SE6 1EY
- Nature of business
- Plumbing, heat and air-conditioning installation (SIC 43220)
- Year end
- 29 May (accounting reference date)
- Accounts type
- Micro-entity
- Last accounts made up to
- 29 May 2025
- Last confirmation statement
- 14 February 2026
- Previous names
- Ams Technical Solutions (Grays) Ltd (until 19 Aug 2022)
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 London
Other active plumbing and heating companies registered in London.
- Tomaley Plumbing Limited2025
- Tomane Ltd2018
- Toms GHP Ltd2015
- Toolwise Ltd2021
- Top Ac. Air Conditioning Installation Ltd2026
- Top Boiler Care Ltd2025
- Top Class Maintenance Limited2012
- Top Heating Ltd2020
All plumbing and heating companies in London · All trades in London · Plumbers and heating engineers across the UK
Frequently asked questions
When are TNS Building Services Ltd's accounts due?
TNS Building Services Ltd's next accounts are due at Companies House by 28 February 2027 (in 138 days), covering the period to 29 May 2026.
When is TNS Building Services Ltd's CT600 due?
The CT600 for the period to 29 May 2026 is due at HMRC by 29 May 2027, 12 months after the period end. The corporation tax itself is payable earlier, by 1 March 2027.
Is TNS Building Services Ltd still trading?
TNS Building 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 TNS Building Services Ltd do?
TNS Building Services Ltd is registered under Plumbing, heat and air-conditioning installation (SIC 43220).
How old is TNS Building Services Ltd?
TNS Building Services Ltd was incorporated on 5 May 2021, 5 years ago.
What is the penalty if TNS Building 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 TNS Building 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.