- Companies
- Plumbers and heating engineers
- Newtownabbey
- Complete Gas Services Belfast Ltd
Complete Gas Services Belfast Ltd
- Company number
- NI668360
- Incorporated
- 11 Mar 20206 years trading
- Registered office
- C/O Nbas Chartered Accountants, 17 Carnmoney Road, Newtownabbey, BT36 6HL
- Nature of business
- Plumbing, heat and air-conditioning installation
Complete Gas Services Belfast Ltd is a 6-year-old private limited company registered in Newtownabbey, company number NI668360, one of 15 plumbing and heating companies in Newtownabbey. Its next accounts are due at Companies House on 30 June 2027, and the CT600 for the period to 30 September 2026 is due at HMRC on 30 September 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 £43K (-69%) on the year before, to £19K.
- Net assets rose in 3 of 5 year-on-year comparisons on record.
- Current assets of £116K against £83K owed within a year: 1.4 times cover.
- 10 employees on average, down from 12 the year before.
- Balance sheets on record for 6 years, 2021 to 2025.
Net assets by year
| Year end | Net assets | Cash | Current assets | Owed within a year | Employees |
|---|---|---|---|---|---|
| 30 Sep 2025 | £19K | £116K | £83K | 10 | |
| 30 Sep 2024 | £62K | £132K | £39K | 12 | |
| 30 Sep 2023 | £39K | £78K | £38K | 12 | |
| 30 Sep 2022 | £38K | £53K | £61K | 3 | |
| 30 Sep 2021 | £100 | £100 | |||
| 31 Mar 2021 | £100 | £100 |
Where Complete Gas Services Belfast Ltd is registered
The registered office is in Newtownabbey (BT36), in the Antrim and Newtownabbey local authority area, Northern Ireland. Show BT36 6HL on a map.
Other trade companies in BT36
- C2 Repairs LtdGlaziers
- BNB Electrical LimitedElectricians
- NI.Consultancy2026 LtdSpecialist contractors
- B2 Property Group LtdFinishing trades
- Colin McGlinchey LtdMachinery repair and installation
- Mac’S Maintenance LtdFinishing trades
- Glaze and Frame Direct LtdGlaziers
- JH Site Maintenance LtdFacilities management
Also registered at this address
5 other companies use the same registered office as Complete Gas Services Belfast Ltd.
- Ballyclare's Hand Car Wash LtdCleaning companies
- Belfast Heating LtdPlumbers and heating engineers
- Dean Best Automotive LtdMotor traders
- Mac’S Maintenance LtdFinishing trades
- Taber Groundworks LtdGroundworks and demolition
What happens if Complete Gas Services Belfast 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 30 June 2027.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 1 Jul 2027 to 31 Jul 2027 | £150 |
| 1 to 3 months late | 1 Aug 2027 to 30 Sep 2027 | £375 |
| 3 to 6 months late | 1 Oct 2027 to 31 Dec 2027 | £750 |
| More than 6 months late | From 1 Jan 2028 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Oct 2027 | £200 |
| 3 months late | 30 Dec 2027 | another £200 |
| 6 months late | 30 Mar 2028 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 30 Sep 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
- NI668360
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 11 March 2020 (6 years ago)
- Registered office
- C/O Nbas Chartered Accountants, 17 Carnmoney Road, Newtownabbey, BT36 6HL
- Nature of business
- Plumbing, heat and air-conditioning installation (SIC 43220)
- Year end
- 30 September (accounting reference date)
- Accounts type
- Micro-entity
- Last accounts made up to
- 30 September 2025
- Last confirmation statement
- 11 September 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 Newtownabbey
Other active plumbing and heating companies registered in Newtownabbey.
- DDC Plumbing & Mechanical Ltd2023
- Gas Design Solutions Limited2012
- Helios Gas Ltd2021
- Newline Mechanical Services Ltd2007
- Paul Darby Plumbing & Heating Ltd2003
- Plumb Gas (N.I.) Ltd2021
- Safe Gas (N.I.) Limited2012
- Tkbini Ltd2020
All plumbing and heating companies in Newtownabbey · All trades in Newtownabbey · Plumbers and heating engineers across the UK
Frequently asked questions
When are Complete Gas Services Belfast Ltd's accounts due?
Complete Gas Services Belfast Ltd's next accounts are due at Companies House by 30 June 2027 (in 260 days), covering the period to 30 September 2026.
When is Complete Gas Services Belfast Ltd's CT600 due?
The CT600 for the period to 30 September 2026 is due at HMRC by 30 September 2027, 12 months after the period end. The corporation tax itself is payable earlier, by 1 July 2027.
Is Complete Gas Services Belfast Ltd still trading?
Complete Gas Services Belfast 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 Complete Gas Services Belfast Ltd do?
Complete Gas Services Belfast Ltd is registered under Plumbing, heat and air-conditioning installation (SIC 43220).
How old is Complete Gas Services Belfast Ltd?
Complete Gas Services Belfast Ltd was incorporated on 11 March 2020, 6 years ago.
What is the penalty if Complete Gas Services Belfast 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 Complete Gas Services Belfast 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.