- Companies
- Plumbers and heating engineers
- Alton
- Aster Building Services Limited
Aster Building Services Limited
- Company number
- 05068468
- Incorporated
- 9 Mar 200422 years trading
- Registered office
- Market House, 21 Lenten Street, Alton, Hampshire, GU34 1HG
- Nature of business
- Plumbing, heat and air-conditioning installation
Aster Building Services Limited is a 22-year-old private limited company registered in Alton, company number 05068468, one of 18 plumbing and heating companies in Alton. Its next accounts are due at Companies House on 31 December 2026, and the CT600 for the period to 31 March 2026 is due at HMRC on 31 March 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 £12K (-11.1%) on the year before, to £95K.
- Net assets rose in 4 of 9 year-on-year comparisons on record.
- Current assets of £285K against £569K owed within a year: 0.5 times cover.
- 16 employees on average, up from 13 the year before.
- Balance sheets on record for 10 years, 2016 to 2025.
Net assets by year
| Year end | Net assets | Cash | Current assets | Owed within a year | Employees |
|---|---|---|---|---|---|
| 31 Mar 2025 | £95K | £92K | £285K | £569K | 16 |
| 31 Mar 2024 | £107K | £174K | £468K | £650K | 13 |
| 31 Mar 2023 | £104K | £216K | £585K | £690K | 12 |
| 31 Mar 2022 | £120K | £189K | £487K | £507K | 12 |
| 31 Mar 2021 | £61K | £171K | £441K | £260K | 12 |
| 31 Mar 2020 | £121K | £184K | £594K | £457K | 12 |
| 31 Mar 2019 | £49K | £0 | £271K | £342K | 13 |
| 31 Mar 2018 | £50K | £30K | £293K | £331K | 13 |
| 31 Mar 2017 | £60K | £39K | £245K | £204K | 14 |
| 31 Mar 2016 | £57K | £157K | £283K | £199K |
Public contracts won
Aster Building Services Limited has 2 public sector contract awards on record; the ones with their own published value total £380K (2023). Source: Contracts Finder and Find a Tender award notices. For 1 of them the published figure is a shared or multi-year ceiling (a framework place, a multi-supplier award, or more than a small company could hold alone), so no value is shown. These were matched by the company's exact name because the notice gave no company number.
Awards by year
Main buyers
- Activate Learning2 awards
| Buyer | Contract | Value | Awarded |
|---|---|---|---|
| Activate Learning | Planned and Reactive Maintenance of Mechanical Plant and Services for Activate Learning at Surrey and Berkshire sites | Ceiling, not shown | 26 Jul 2023 |
| Activate Learning | CA11769 - Planned and Reactive Maintenance of Mechanical Plant and Services for Activate Learning at Surrey and Berkshire sites | £380K | 26 Jul 2023 |
Where Aster Building Services Limited is registered
The registered office is in Alton (GU34), in the East Hampshire local authority area, South East. Show GU34 1HG on a map.
Other trade companies in GU34
- Selborne Oak LtdBuilders
- Road & Acre LtdMotor traders
- S Charlton & Sons LimitedFinishing trades
- Buoyansea LtdMachinery repair and installation
- Ajs Design & Build LimitedJoiners and carpenters
- Inca Road Sales LimitedMechanics and garages
- Alton Valeting LtdCleaning companies
- Ab Maintain LimitedMachinery repair and installation
Shared registered office
50 companies on our pages use this registered office address. An address shared this widely is usually an accountant's office or a company formation agent's service address, not where the business trades from.
What happens if Aster Building Services 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 December 2026.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 1 Jan 2027 to 31 Jan 2027 | £150 |
| 1 to 3 months late | 1 Feb 2027 to 31 Mar 2027 | £375 |
| 3 to 6 months late | 1 Apr 2027 to 30 Jun 2027 | £750 |
| More than 6 months late | From 1 Jul 2027 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Apr 2027 | £200 |
| 3 months late | 30 Jun 2027 | another £200 |
| 6 months late | 30 Sep 2027 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 31 Mar 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
- 05068468
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 9 March 2004 (22 years ago)
- Registered office
- Market House, 21 Lenten Street, Alton, Hampshire, GU34 1HG
- Nature of business
- Plumbing, heat and air-conditioning installation (SIC 43220)
- Year end
- 31 March (accounting reference date)
- Accounts type
- Total exemption (full)
- Last accounts made up to
- 31 March 2025
- Last confirmation statement
- 9 March 2026
- Charges (mortgages)
- 2 outstanding of 3 registered
- Previous names
- Aster Maintenance Limited (until 5 May 2020)
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 Alton
Other active plumbing and heating companies registered in Alton.
- Brendan Porter Bathrooms Ltd2025
- CKS Plumbing and Heating Engineers Limited2007
- Ecs Plumbing & Heating Ltd2014
- Heat Knights Boiler Repair London and Plumbing Ltd2016
- Icool Refrigeration and Air Conditioning Limited2014
- JWW Air Conditioning Limited2025
- Karl Moore Plumbing and Heating Limited2021
- Lehmann Services Ltd2025
All plumbing and heating companies in Alton · All trades in Alton · Plumbers and heating engineers across the UK
Frequently asked questions
When are Aster Building Services Limited's accounts due?
Aster Building Services Limited's next accounts are due at Companies House by 31 December 2026 (in 80 days), covering the period to 31 March 2026.
When is Aster Building Services Limited's CT600 due?
The CT600 for the period to 31 March 2026 is due at HMRC by 31 March 2027, 12 months after the period end. The corporation tax itself is payable earlier, by 1 January 2027.
Is Aster Building Services Limited still trading?
Aster Building Services 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 Aster Building Services Limited do?
Aster Building Services Limited is registered under Plumbing, heat and air-conditioning installation (SIC 43220).
How old is Aster Building Services Limited?
Aster Building Services Limited was incorporated on 9 March 2004, 22 years ago.
Has Aster Building Services Limited won public sector contracts?
Yes. Aster Building Services Limited has 2 contract awards from public bodies on Contracts Finder and Find a Tender (those with their own published value total £380K), most recently from Activate Learning.
What is the penalty if Aster Building Services 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 Aster Building Services 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.