- Companies
- Plumbers and heating engineers
- Hook
- A.D.E.P.T. Maintenance Limited
A.D.E.P.T. Maintenance Limited
- Company number
- 04991139
- Incorporated
- 10 Dec 200322 years trading
- Registered office
- 7 Houghton Square, Sherfield-On-Loddon, Hook, RG27 0SL
- Nature of business
- Plumbing, heat and air-conditioning installation
A.D.E.P.T. Maintenance Limited is a 22-year-old private limited company registered in Hook, company number 04991139, one of 24 plumbing and heating companies in Hook. Its next accounts are due at Companies House on 31 March 2028, and the CT600 for the period to 30 June 2027 is due at HMRC on 30 June 2028.
Key dates
Worked out from the year end and filing history on the Companies House register.
Is this your company?
File the accounts to Companies House and the CT600 to HMRC yourself with A.X.E.L Filing. One set of questions, both filings, £49 flat. No accountant, no subscription.
File for A.D.E.P.T. Maintenance LimitedOr get a reminder before each deadline
Free. We email you 60, 30, 14, 7 and 1 days before the accounts, CT600 and confirmation statement are due. Unsubscribe in one click.
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 £31K (+827.1%) on the year before, to £34K.
- Net assets rose in 4 of 9 year-on-year comparisons on record.
- Current assets of £60K against £27K owed within a year: 2.2 times cover.
- 1 employee on average during the year.
- Balance sheets on record for 10 years, 2017 to 2026.
Net assets by year
| Year end | Net assets | Cash | Current assets | Owed within a year | Employees |
|---|---|---|---|---|---|
| 30 Jun 2026 | £34K | £42K | £60K | £27K | 1 |
| 30 Jun 2025 | £3,716 | £50K | £67K | £65K | 1 |
| 31 May 2024 | £13K | £1,483 | £39K | 0 | |
| 31 May 2023 | £13K | £1,483 | £39K | 0 | |
| 31 May 2022 | £13K | £1,483 | £39K | 0 | |
| 31 May 2021 | £13K | £1,483 | £39K | 1 | |
| 31 May 2020 | £13K | £1,483 | £39K | 5 | |
| 31 May 2019 | £4,523 | £11K | £42K | ||
| 31 May 2018 | £3,191 | £6,825 | £39K | ||
| 31 May 2017 | -£5,335 | £2,528 | £23K | £51K | 2 |
Where A.D.E.P.T. Maintenance Limited is registered
The registered office is in Hook (RG27), in the Basingstoke and Deane local authority area, South East. Show RG27 0SL on a map.
Other trade companies in RG27
- Clean Perfect LimitedCleaning companies
- Magnoloci LimitedProperty developers
- Hydra Site Services LtdMachinery repair and installation
- Goldridge Group LtdFinishing trades
- Small Works PCB LimitedBuilders
- Eshaness Procurement Advisory LtdCivil engineering
- The Original Box Sash Window Company LtdGroundworks and demolition
- H A Raggett Developments LimitedBuilders
What happens if A.D.E.P.T. Maintenance 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 March 2028.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 1 Apr 2028 to 30 Apr 2028 | £150 |
| 1 to 3 months late | 1 May 2028 to 30 Jun 2028 | £375 |
| 3 to 6 months late | 1 Jul 2028 to 30 Sep 2028 | £750 |
| More than 6 months late | From 1 Oct 2028 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Jul 2028 | £200 |
| 3 months late | 30 Sep 2028 | another £200 |
| 6 months late | 30 Dec 2028 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 30 Jun 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
- 04991139
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 10 December 2003 (22 years ago)
- Registered office
- 7 Houghton Square, Sherfield-On-Loddon, Hook, RG27 0SL
- Nature of business
- Plumbing, heat and air-conditioning installation (SIC 43220)
- Year end
- 30 June (accounting reference date)
- Accounts type
- Total exemption (full)
- Last accounts made up to
- 30 June 2026
- Last confirmation statement
- 10 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 Hook
Other active plumbing and heating companies registered in Hook.
- Aj-Heating & Plumbing Solutions Limited2019
- Assert Property Services Limited2012
- CHS Installations Limited2005
- Degrees C Environmental Limited2013
- DJB Plumbing Services Ltd2011
- Flame Sure Ltd2021
- Green Heath Solutions Ltd2023
- Greko Plumbing and Heating Limited2023
All plumbing and heating companies in Hook · All trades in Hook · Plumbers and heating engineers across the UK
Frequently asked questions
When are A.D.E.P.T. Maintenance Limited's accounts due?
A.D.E.P.T. Maintenance Limited's next accounts are due at Companies House by 31 March 2028 (in 535 days), covering the period to 30 June 2027.
When is A.D.E.P.T. Maintenance Limited's CT600 due?
The CT600 for the period to 30 June 2027 is due at HMRC by 30 June 2028, 12 months after the period end. The corporation tax itself is payable earlier, by 1 April 2028.
Is A.D.E.P.T. Maintenance Limited still trading?
A.D.E.P.T. Maintenance 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 A.D.E.P.T. Maintenance Limited do?
A.D.E.P.T. Maintenance Limited is registered under Plumbing, heat and air-conditioning installation (SIC 43220).
How old is A.D.E.P.T. Maintenance Limited?
A.D.E.P.T. Maintenance Limited was incorporated on 10 December 2003, 22 years ago.
What is the penalty if A.D.E.P.T. Maintenance 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 A.D.E.P.T. Maintenance 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.