- Companies
- Plumbers and heating engineers
- Belfast
- Ats Gas Services Limited
Ats Gas Services Limited
- Company number
- NI631651
- Incorporated
- 2 Jun 201511 years trading
- Registered office
- Unit 20/21 Farset Enterprise Park Unit 20/21 Farset Enterprise Park, 638 Springfield Road, Belfast, BT12 7DY
- Nature of business
- Plumbing, heat and air-conditioning installation
Ats Gas Services Limited is a 11-year-old private limited company registered in Belfast, company number NI631651, one of 99 plumbing and heating companies in Belfast. Its next accounts are due at Companies House on 31 December 2026, and the CT600 for the period to 31 March 2026 is due at HMRC on 31 March 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 £8,755 (-2.7%) on the year before, to £320K.
- Net assets rose in 6 of 9 year-on-year comparisons on record.
- Current assets of £1.8M against £1.7M owed within a year: 1.1 times cover.
- 31 employees on average, down from 43 the year before.
- Balance sheets on record for 10 years, 2016 to 2025.
Net assets by year
| Year end | Net assets | Cash | Current assets | Owed within a year | Employees |
|---|---|---|---|---|---|
| 31 Mar 2025 | £320K | £309K | £1.8M | £1.7M | 31 |
| 31 Mar 2024 | £329K | £95K | £1.4M | £1.2M | 43 |
| 31 Mar 2023 | £163K | £22K | £574K | £528K | 31 |
| 31 Mar 2022 | £535K | £722K | £1.1M | £571K | 24 |
| 31 Mar 2021 | £113K | £1.5M | £1.8M | £1.8M | 17 |
| 31 Mar 2020 | £786K | £862K | £1.2M | £485K | 14 |
| 31 Mar 2019 | £290K | £259K | £425K | £185K | 14 |
| 30 Jun 2018 | £264K | £109K | £323K | £101K | 10 |
| 30 Jun 2017 | £183K | £150K | £246K | £80K | 6 |
| 30 Jun 2016 | £98K | £62K |
Public contracts won
Ats Gas Services Limited has 9 public sector contract awards on record; the ones with their own published value total £226K, from 2020 to 2026. Source: Contracts Finder and Find a Tender award notices. For 7 of them the published figure is a shared or multi-year ceiling (a framework place, a multi-supplier award, or more than a small company could hold alone), so no value is shown. 4 of these were matched by the company's exact name because the notice gave no company number.
Awards by year
Main buyers
- Newry, Mourne and Down District Council (NMD)2 awards
- NHMF (NPC) Limited2 awards
- Regional Business Services Organisation Procurement and Logistics Service1 award
- ForHousing Limited1 award
- HA5 PARTNERSHIP c/o NB HOUSING1 award
| Buyer | Contract | Value | Awarded |
|---|---|---|---|
| Newry, Mourne and Down District Council (NMD) | ITT 03/2026 - Biannual Service of oil-fired Boilers and Emergency Breakdown Cover | £108K | 3 Aug 2026 |
| Newry, Mourne and Down District Council (NMD) | CA15970 - ITT - 2025/03 Annual Service of Gas Fired Boilers and Emergency Breakdown | £118K | 3 Apr 2026 |
| Regional Business Services Organisation Procurement and Logistics Service | Maintenance of Boilers, Plant and Controls (Low Temperature Hot Water, Steam and Biomass), Boiler Water Treatment and Plate Heat Exchangers [4887665] | Ceiling, not shown | 17 Jun 2025 |
| ForHousing Limited | Gas Servicing and Repairs | Ceiling, not shown | 29 Jan 2024 |
| NHMF (NPC) Limited | NHMF Frameworx Disability Adaptations Framework Agreements | Ceiling, not shown | 15 Dec 2023 |
| NHMF (NPC) Limited | NHMF Frameworx Heating Services Framework Agreements 2023 | Ceiling, not shown | 31 Aug 2023 |
| HA5 PARTNERSHIP c/o NB HOUSING | Responsive Maintenance, Void Property Works, Planned Maintenance and Compliance Works | Ceiling, not shown | 17 Feb 2023 |
| Radius Housing Association Ltd | Heating Servicing, Repairs and New Installation Works | Ceiling, not shown | 12 Oct 2022 |
| Fusion21 Members Consortium | Fusion21 Heating & Renewables Framework | Ceiling, not shown | 28 Jan 2020 |
Where Ats Gas Services Limited is registered
The registered office is in Belfast (BT12), in the Belfast local authority area, Northern Ireland. Show BT12 7DY on a map.
Other trade companies in BT12
- Faris Painting Decoration LtdPainters and decorators
- Apollo Road Auto Wash LtdCleaning companies
- Detailing Company LtdCleaning companies
- Gaddam Builds LtdBuilders
- Motor & Co Automotive LtdMotor traders
- Severina Cleaning Services LimitedCleaning companies
- 247 Aircraft Maintenance LimitedMachinery repair and installation
- Diamond Cleaning Services Belfast LtdCleaning companies
What happens if Ats Gas Services 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 December 2026.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 1 Jan 2027 to 31 Jan 2027 | £150 |
| 1 to 3 months late | 1 Feb 2027 to 31 Mar 2027 | £375 |
| 3 to 6 months late | 1 Apr 2027 to 30 Jun 2027 | £750 |
| More than 6 months late | From 1 Jul 2027 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Apr 2027 | £200 |
| 3 months late | 30 Jun 2027 | another £200 |
| 6 months late | 30 Sep 2027 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 31 Mar 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
- NI631651
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 2 June 2015 (11 years ago)
- Registered office
- Unit 20/21 Farset Enterprise Park Unit 20/21 Farset Enterprise Park, 638 Springfield Road, Belfast, BT12 7DY
- Nature of business
- Plumbing, heat and air-conditioning installation (SIC 43220)
- Year end
- 31 March (accounting reference date)
- Accounts type
- Total exemption (full)
- Last accounts made up to
- 31 March 2025
- Last confirmation statement
- 2 June 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 Belfast
Other active plumbing and heating companies registered in Belfast.
- B.L. Refrigeration & Air Conditioning Limited1978
- B.S. Holdings Limited2000
- Bathroom Fitouts NI Ltd2026
- BBS Plumbing and Heating Services Ltd2025
- Belfast Gas Ltd2026
- Belfast Powerflushing Ltd2023
- Bluearc Mechanical Ltd2024
- Boiler Pro N.I. Ltd2026
All plumbing and heating companies in Belfast · All trades in Belfast · Plumbers and heating engineers across the UK
Frequently asked questions
When are Ats Gas Services Limited's accounts due?
Ats Gas Services Limited's next accounts are due at Companies House by 31 December 2026 (in 79 days), covering the period to 31 March 2026.
When is Ats Gas Services Limited's CT600 due?
The CT600 for the period to 31 March 2026 is due at HMRC by 31 March 2027, 12 months after the period end. The corporation tax itself is payable earlier, by 1 January 2027.
Is Ats Gas Services Limited still trading?
Ats Gas Services 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 Ats Gas Services Limited do?
Ats Gas Services Limited is registered under Plumbing, heat and air-conditioning installation (SIC 43220).
How old is Ats Gas Services Limited?
Ats Gas Services Limited was incorporated on 2 June 2015, 11 years ago.
Has Ats Gas Services Limited won public sector contracts?
Yes. Ats Gas Services Limited has 9 contract awards from public bodies on Contracts Finder and Find a Tender (those with their own published value total £226K), most recently from Newry, Mourne and Down District Council (NMD).
What is the penalty if Ats Gas Services 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 Ats Gas Services 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.