- Companies
- Plumbers and heating engineers
- Slough
- Smart A/C Solutions Ltd
Smart A/C Solutions Ltd
- Company number
- 12361239
- Incorporated
- 12 Dec 20196 years trading
- Registered office
- C/O Taxassist Accountants 635 Bath Road, Burnham, Slough, Berkshire, SL1 6AE
- Nature of business
- Plumbing, heat and air-conditioning installation
Smart A/C Solutions Ltd is a 6-year-old private limited company registered in Slough, company number 12361239, one of 128 plumbing and heating companies in Slough. Its next accounts are due at Companies House on 30 September 2027, and the CT600 for the period to 31 December 2026 is due at HMRC on 31 December 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 up £24K (+80.5%) on the year before, to £54K.
- Net assets rose in 4 of 5 year-on-year comparisons on record.
- Current assets of £114K against £82K owed within a year: 1.4 times cover.
- 2 employees on average during the year.
- Balance sheets on record for 6 years, 2020 to 2025.
Net assets by year
| Year end | Net assets | Cash | Current assets | Owed within a year | Employees |
|---|---|---|---|---|---|
| 31 Dec 2025 | £54K | £114K | £82K | 2 | |
| 31 Dec 2024 | £30K | £70K | £39K | 2 | |
| 31 Dec 2023 | £115K | £59K | £157K | £35K | 2 |
| 31 Dec 2022 | £70K | £135K | £54K | 2 | |
| 31 Dec 2021 | £52K | £109K | £43K | 2 | |
| 31 Dec 2020 | £2,776 | £58K | £35K | 2 |
Where Smart A/C Solutions Ltd is registered
The registered office is in Slough (SL1), in the Slough local authority area, South East. Show SL1 6AE on a map.
Other trade companies in SL1
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- Westside Automotive LtdMotor traders
- Shadeworks LtdInstallers
- Yad Building Services LimitedBuilders
- Slough Vehicle Repair Centre LtdMechanics and garages
- Hadi Automotive LtdMotor traders
- Imperial Berkshire Motors LtdMotor traders
- MDN General LtdBuilders
Also registered at this address
12 other companies use the same registered office as Smart A/C Solutions Ltd.
- Colsen Industries LimitedMotor traders
- CPSP Leak Detection LtdPlumbers and heating engineers
- Crown Marble LtdInstallers
- F & H Projects LtdElectricians
- KLS Lawns LtdLandscapers and gardeners
- Kyman Construction LimitedFinishing trades
- Louis Hopkins Building LtdSpecialist contractors
- O'Reilly Plastering LimitedPlasterers
- O.W.Francis LtdElectricians
- SJS Rams LtdMachinery repair and installation
- UK Leak Detection LimitedProperty developers
- Winterhouse Development LimitedBuilders
What happens if Smart A/C Solutions 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 September 2027.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 1 Oct 2027 to 31 Oct 2027 | £150 |
| 1 to 3 months late | 1 Nov 2027 to 31 Dec 2027 | £375 |
| 3 to 6 months late | 1 Jan 2028 to 31 Mar 2028 | £750 |
| More than 6 months late | From 1 Apr 2028 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Jan 2028 | £200 |
| 3 months late | 31 Mar 2028 | another £200 |
| 6 months late | 30 Jun 2028 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 31 Dec 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
- 12361239
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 12 December 2019 (6 years ago)
- Registered office
- C/O Taxassist Accountants 635 Bath Road, Burnham, Slough, Berkshire, SL1 6AE
- Nature of business
- Plumbing, heat and air-conditioning installation (SIC 43220)
- Year end
- 31 December (accounting reference date)
- Accounts type
- Micro-entity
- Last accounts made up to
- 31 December 2025
- Last confirmation statement
- 11 December 2025
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 Slough
Other active plumbing and heating companies registered in Slough.
- Smart Energy Aid Ltd2025
- SR Heating & Plumbing Ltd2012
- Staa Private Limited2020
- Tara Gas Heating Services Limited2013
- Thames Valley Facilities Ltd2021
- Thind Heating Services Ltd2022
- Total Heat Services Ltd2022
- Tru-Heat Limited2011
All plumbing and heating companies in Slough · All trades in Slough · Plumbers and heating engineers across the UK
Frequently asked questions
When are Smart A/C Solutions Ltd's accounts due?
Smart A/C Solutions Ltd's next accounts are due at Companies House by 30 September 2027 (in 352 days), covering the period to 31 December 2026.
When is Smart A/C Solutions Ltd's CT600 due?
The CT600 for the period to 31 December 2026 is due at HMRC by 31 December 2027, 12 months after the period end. The corporation tax itself is payable earlier, by 1 October 2027.
Is Smart A/C Solutions Ltd still trading?
Smart A/C Solutions 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 Smart A/C Solutions Ltd do?
Smart A/C Solutions Ltd is registered under Plumbing, heat and air-conditioning installation (SIC 43220).
How old is Smart A/C Solutions Ltd?
Smart A/C Solutions Ltd was incorporated on 12 December 2019, 6 years ago.
What is the penalty if Smart A/C Solutions 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 Smart A/C Solutions 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.