- Companies
- Plumbers and heating engineers
- Bonnyrigg
- Gma Air Conditioning Ltd
Gma Air Conditioning Ltd
- Company number
- SC809325
- Incorporated
- 2 May 20242 years trading
- Registered office
- 1 Thorburn Walk, Bonnyrigg, EH19 3TB
- Nature of business
- Plumbing, heat and air-conditioning installation
Gma Air Conditioning Ltd is a 2-year-old private limited company registered in Bonnyrigg, company number SC809325, one of 8 plumbing and heating companies in Bonnyrigg. Its next accounts are due at Companies House on 28 February 2027, and the CT600 for the period to 31 May 2026 is due at HMRC on 31 May 2027.
Key dates
Worked out from the year end and filing history on the Companies House register.
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Financial snapshot, 2025
From the balance sheet at 31 May 2025, as filed at Companies House.
Public contracts won
Gma Air Conditioning Ltd has 9 public sector contract awards on record; the ones with their own published value total £496K, from 2025 to 2026. Source: Contracts Finder and Find a Tender award notices. These were matched by the company's exact name because the notice gave no company number.
Awards by year
Main buyers
- UK Research & Innovation (UKRI)6 awards
- UK Research and Innovation3 awards
| Buyer | Contract | Value | Awarded |
|---|---|---|---|
| UK Research & Innovation (UKRI) | UKRI-6397 ESG Workshop VRV AC system installation | £112K | 25 Sep 2026 |
| UK Research & Innovation (UKRI) | UKRI-5977 Higgs ASHP & Chiller Project | £79K | 24 Mar 2026 |
| UK Research & Innovation (UKRI) | UKRI-5898 Edinburgh 1894 Building - GMA Air Conditioning - Forced Ventilation | £66K | 5 Mar 2026 |
| UK Research & Innovation (UKRI) | UKRI-5734 C2 Server Room AC System Kit Supply | £60K | 6 Feb 2026 |
| UK Research and Innovation | CSP26166 - Supply and install carbon filtration assembly | £12K | 5 Feb 2026 |
| UK Research & Innovation (UKRI) | UKRI-5659 Cleanroom Ventilation System Service | £74K | 16 Jan 2026 |
| UK Research and Innovation | CSP26005 - Ventilation Installation | £19K | 14 Jan 2026 |
| UK Research and Innovation | CSP25539 - Replacement Chiller | £32K | 4 Nov 2025 |
| UK Research & Innovation (UKRI) | UKRI-5210 Edinburgh 1894 Building- Lining of Rainwater Pipes | £40K | 29 Aug 2025 |
Where Gma Air Conditioning Ltd is registered
The registered office is in Bonnyrigg (EH19), in the Midlothian local authority area, Scotland. Show EH19 3TB on a map.
Other trade companies in EH19
- KSM Landscaping LtdLandscapers and gardeners
- D Dobbie Glazing LimitedGlaziers
- Scocasa Group LtdProperty developers
- The Edinburgh Power Clean Company LtdCleaning companies
- Barbom LtdJoiners and carpenters
- Sphynx Group LtdCleaning companies
- Revvive Motors LimitedMotor traders
- Project 21 Detail (Edinburgh) LtdCleaning companies
What happens if Gma Air Conditioning 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 | 1 Jun 2027 | £200 |
| 3 months late | 31 Aug 2027 | another £200 |
| 6 months late | 30 Nov 2027 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 31 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
- SC809325
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 2 May 2024 (2 years ago)
- Registered office
- 1 Thorburn Walk, Bonnyrigg, EH19 3TB
- Nature of business
- Plumbing, heat and air-conditioning installation (SIC 43220)
- Year end
- 31 May (accounting reference date)
- Accounts type
- Micro-entity
- Last accounts made up to
- 31 May 2025
- Last confirmation statement
- 1 May 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 Bonnyrigg
Other active plumbing and heating companies registered in Bonnyrigg.
- Lasswade Plumbing and Heating Limited2018
- Mark Robertson Limited2010
- McGuire Heating Ltd2018
- McGuire Plumbing Ltd2022
- Plumb Scotland Ltd2025
- Reliaheat Ltd2020
- Ross Armstrong Gas Central Heating & Plumbing Services Limited2015
All plumbing and heating companies in Bonnyrigg · All trades in Bonnyrigg · Plumbers and heating engineers across the UK
Frequently asked questions
When are Gma Air Conditioning Ltd's accounts due?
Gma Air Conditioning Ltd's next accounts are due at Companies House by 28 February 2027 (in 138 days), covering the period to 31 May 2026.
When is Gma Air Conditioning Ltd's CT600 due?
The CT600 for the period to 31 May 2026 is due at HMRC by 31 May 2027, 12 months after the period end. The corporation tax itself is payable earlier, by 1 March 2027.
Is Gma Air Conditioning Ltd still trading?
Gma Air Conditioning 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 Gma Air Conditioning Ltd do?
Gma Air Conditioning Ltd is registered under Plumbing, heat and air-conditioning installation (SIC 43220).
How old is Gma Air Conditioning Ltd?
Gma Air Conditioning Ltd was incorporated on 2 May 2024, 2 years ago.
Has Gma Air Conditioning Ltd won public sector contracts?
Yes. Gma Air Conditioning Ltd has 9 contract awards from public bodies on Contracts Finder and Find a Tender (those with their own published value total £496K), most recently from UK Research & Innovation (UKRI).
What is the penalty if Gma Air Conditioning 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 Gma Air Conditioning 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.