- Companies
- Specialist contractors
- Ayr
- Dalmore Hydro Limited
Dalmore Hydro Limited
- Company number
- SC548635
- Incorporated
- 26 Oct 20169 years trading
- Registered office
- 9 Blackburn Road, Ayr, KA7 2XQ
- Nature of business
- Other specialised construction activities n.e.c.
Dalmore Hydro Limited is a 9-year-old private limited company registered in Ayr, company number SC548635, one of 27 specialist construction companies in Ayr. Its next accounts are due at Companies House on 31 July 2027, and the CT600 for the period to 31 October 2026 is due at HMRC on 31 October 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 £91K (-24.3%) on the year before, to £282K.
- Net assets rose in 1 of 8 year-on-year comparisons on record.
- Current assets of £50K against £12K owed within a year: 4.3 times cover.
- 2 employees on average during the year.
- Balance sheets on record for 9 years, 2017 to 2025.
Net assets by year
| Year end | Net assets | Cash | Current assets | Owed within a year | Employees |
|---|---|---|---|---|---|
| 31 Oct 2025 | £282K | £50K | £12K | 2 | |
| 31 Oct 2024 | £372K | £84K | £3,084 | 2 | |
| 31 Oct 2023 | £410K | £113K | £3,359 | 1 | |
| 31 Oct 2022 | £411K | £97K | £146K | 0 | |
| 31 Oct 2021 | -£59K | £137K | £645K | 0 | |
| 31 Oct 2020 | -£35K | £263K | £652K | 0 | |
| 31 Oct 2019 | -£15K | £266K | £451K | ||
| 31 Oct 2018 | £1 | £1 | |||
| 31 Oct 2017 | £1 | £1 |
Where Dalmore Hydro Limited is registered
The registered office is in Ayr (KA7), in the South Ayrshire local authority area, Scotland. Show KA7 2XQ on a map.
Other trade companies in KA7
- J McEwan & Son Electrical LtdElectricians
- Net Zero Insulation Scot LtdInstallers
- GG Solutions (Scotland) LtdScaffolders
- DD Walsh & Son LtdBuilders
- DM Rodger & Sons LtdProperty developers
- David Thornton Heating Installation Services LtdPlumbers and heating engineers
- RDS Plumbing Heating and Bathrooms LtdBuilders
- Duncan’S Details LtdCleaning companies
What happens if Dalmore Hydro 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 July 2027.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 1 Aug 2027 to 31 Aug 2027 | £150 |
| 1 to 3 months late | 1 Sep 2027 to 31 Oct 2027 | £375 |
| 3 to 6 months late | 1 Nov 2027 to 31 Jan 2028 | £750 |
| More than 6 months late | From 1 Feb 2028 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Nov 2027 | £200 |
| 3 months late | 31 Jan 2028 | another £200 |
| 6 months late | 30 Apr 2028 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 31 Oct 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
- SC548635
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 26 October 2016 (9 years ago)
- Registered office
- 9 Blackburn Road, Ayr, KA7 2XQ
- Nature of business
- Other specialised construction activities n.e.c. (SIC 43999)
- Year end
- 31 October (accounting reference date)
- Accounts type
- Micro-entity
- Last accounts made up to
- 31 October 2025
- Last confirmation statement
- 25 October 2025
Filing notes for specialist construction companies
Specialist contractors often work under CIS for main contractors. Retentions held back by the customer still count towards turnover once the work is done.
Similar companies in Ayr
Other active specialist construction companies registered in Ayr.
- Graham Engineering (Scotland) Ltd2026
- Greenmakers Limited2015
- GSC Timber Ltd.2004
- GWC Lifting Operations Ltd2025
- Hillfort Contracts Limited2023
- John McDonald Roto Driver Ltd2025
- LB Boyd Limited2016
- Leon Holmes Limited2024
All specialist construction companies in Ayr · All trades in Ayr · Specialist contractors across the UK
Frequently asked questions
When are Dalmore Hydro Limited's accounts due?
Dalmore Hydro Limited's next accounts are due at Companies House by 31 July 2027 (in 292 days), covering the period to 31 October 2026.
When is Dalmore Hydro Limited's CT600 due?
The CT600 for the period to 31 October 2026 is due at HMRC by 31 October 2027, 12 months after the period end. The corporation tax itself is payable earlier, by 1 August 2027.
Is Dalmore Hydro Limited still trading?
Dalmore Hydro 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 Dalmore Hydro Limited do?
Dalmore Hydro Limited is registered under Other specialised construction activities n.e.c. (SIC 43999).
How old is Dalmore Hydro Limited?
Dalmore Hydro Limited was incorporated on 26 October 2016, 9 years ago.
What is the penalty if Dalmore Hydro 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 Dalmore Hydro 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.