- Companies
- Plumbers and heating engineers
- Hatfield
- Summit Air Conditioning Services Ltd
Summit Air Conditioning Services Ltd
- Company number
- 17369319
- Incorporated
- 29 Jul 2026
- Registered office
- The Business Centre Brookmans Business Park Great North Road, Brookmans Park, Hatfield, AL9 6NE
- Nature of business
- Plumbing, heat and air-conditioning installation
Summit Air Conditioning Services Ltd is a newly incorporated private limited company registered in Hatfield, company number 17369319, one of 38 plumbing and heating companies in Hatfield. Its next accounts are due at Companies House on 29 April 2028, and its first CT600 is due at HMRC on 28 July 2028.
Key dates
This company has not filed accounts yet. First accounts are due 21 months after incorporation, and the first period can run longer than a year.
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Who runs and owns Summit Air Conditioning Services Ltd
From the Companies House register. Individuals are shown by initials only; the full register is on Companies House.
Officers (2)
| Name | Role | Appointed |
|---|---|---|
| P*** I*** | Director | Jul 2026 |
| L*** M*** | Director | Jul 2026 |
People with significant control (2)
Where Summit Air Conditioning Services Ltd is registered
The registered office is in Hatfield (AL9), in the Welwyn Hatfield local authority area, East of England. Show AL9 6NE on a map.
Other trade companies in AL9
- DMC Equity LtdProperty developers
- Teknosa Automotive LimitedMotor traders
- Enki Construction LtdBuilders
- Queensbury ST Ippolyts LimitedBuilders
- William Douglas Acquisitions LimitedProperty developers
- LG Site Services LimitedBuilders
- Miella Construction LtdPlumbers and heating engineers
- Leane Building LtdBuilders
Also registered at this address
1 other company uses the same registered office as Summit Air Conditioning Services Ltd.
- Connected Utilities LimitedCivil engineering
What happens if Summit Air Conditioning 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 29 April 2028.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 30 Apr 2028 to 29 May 2028 | £150 |
| 1 to 3 months late | 30 May 2028 to 29 Jul 2028 | £375 |
| 3 to 6 months late | 30 Jul 2028 to 29 Oct 2028 | £750 |
| More than 6 months late | From 30 Oct 2028 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Aug 2028 | £200 |
| 3 months late | 31 Oct 2028 | another £200 |
| 6 months late | 31 Jan 2029 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 31 Jul 2029 | 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
- 17369319
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 29 July 2026
- Registered office
- The Business Centre Brookmans Business Park Great North Road, Brookmans Park, Hatfield, AL9 6NE
- Nature of business
- Plumbing, heat and air-conditioning installation (SIC 43220)
- Year end
- 31 July (accounting reference date)
- Accounts type
- No accounts filed yet
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 Hatfield
Other active plumbing and heating companies registered in Hatfield.
- Swiftheat Plumbing Solutions Ltd2023
- 365 Plumbing and Heating Herts Ltd2019
- Adaption Services Limited2016
- Apm Plumbing & Heating Services Limited2017
- Asp Plumbing and Heating Services Limited2016
- Baker Smith Limited2007
- Bladon Plumbing & Heating Limited2005
- Blue NRG Ltd2019
All plumbing and heating companies in Hatfield · All trades in Hatfield · Plumbers and heating engineers across the UK
Frequently asked questions
When are Summit Air Conditioning Services Ltd's accounts due?
Summit Air Conditioning Services Ltd's next accounts are due at Companies House by 29 April 2028 (in 565 days), covering the period to 31 July 2027.
When is Summit Air Conditioning Services Ltd's CT600 due?
The first accounts cover more than 12 months, so there are two Company Tax Returns: one for the 12 months to 28 July 2027, due by 28 July 2028, and one for the period to 31 July 2027, due by 31 July 2028. Corporation tax is payable 9 months and 1 day after the end of each.
Is Summit Air Conditioning Services Ltd still trading?
Summit Air Conditioning 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 Summit Air Conditioning Services Ltd do?
Summit Air Conditioning Services Ltd is registered under Plumbing, heat and air-conditioning installation (SIC 43220).
How old is Summit Air Conditioning Services Ltd?
Summit Air Conditioning Services Ltd was incorporated on 29 July 2026, less than a year ago.
Who runs Summit Air Conditioning Services Ltd?
Summit Air Conditioning Services Ltd has 2 active directors, the longest-serving appointed in Jul 2026. Their names and service addresses are on the Companies House register.
Who owns Summit Air Conditioning Services Ltd?
2 people or companies have significant control of Summit Air Conditioning Services Ltd: an individual (owns 25% to 50% of the shares); an individual (owns 25% to 50% of the shares).
What is the penalty if Summit Air Conditioning 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 Summit Air Conditioning 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.