- Companies
- Installers
- Sittingbourne
- CDM Maintenance and Construction Limited
CDM Maintenance and Construction Limited
- Company number
- 03421083
- Incorporated
- 18 Aug 199729 years trading
- Registered office
- c/o Uhy Hacker Young, Thames House, Roman Square, Sittingbourne, Kent, ME10 4BJ
- Nature of business
- Other construction installation
CDM Maintenance and Construction Limited is a 29-year-old private limited company registered in Sittingbourne, company number 03421083, one of 24 installation companies (insulation, lifts, shutters and similar) in Sittingbourne. Its next accounts are due at Companies House on 31 May 2027, and the CT600 for the period to 31 August 2026 is due at HMRC on 31 August 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 £351 (+33.3%) on the year before, to £1,406.
- Net assets rose in 5 of 8 year-on-year comparisons on record.
- Current assets of £38K against £48K owed within a year: 0.8 times cover.
- 3 employees on average during the year.
- Balance sheets on record for 10 years, 2014 to 2025.
Net assets by year
| Year end | Net assets | Cash | Current assets | Owed within a year | Employees |
|---|---|---|---|---|---|
| 31 Aug 2025 | £1,406 | £38K | £48K | 3 | |
| 31 Aug 2024 | £1,055 | £68K | £59K | 3 | |
| 31 Aug 2023 | £579 | £59K | £43K | 3 | |
| 31 Aug 2022 | £214 | £71K | £49K | 3 | |
| 31 Aug 2021 | £275 | £123K | £90K | 3 | |
| 31 Aug 2020 | £1,133 | £68K | £102K | £56K | 3 |
| 31 Aug 2019 | £1,123 | £12K | £58K | £56K | 3 |
| 31 Aug 2016 | £422 | £5,713 | £53K | £56K | |
| 31 Aug 2015 | £1,568 | £6,055 | £74K | £72K | |
| 31 Aug 2014 | £920 | £5,379 | £61K | £60K |
Where CDM Maintenance and Construction Limited is registered
The registered office is in Sittingbourne (ME10), in the Swale local authority area, South East. Show ME10 4BJ on a map.
Other trade companies in ME10
- Arc - Accident Repair Centre Kent LtdMechanics and garages
- The Painting Doctor & Son LtdPainters and decorators
- Primitus Group LtdProperty developers
- Gock LtdMachinery repair and installation
- Motor Rituals LtdMechanics and garages
- Roadprotectshield LtdMechanics and garages
- Tada Cleans LimitedCleaning companies
- Viktor Fit Out LtdInstallers
Also registered at this address
17 other companies use the same registered office as CDM Maintenance and Construction Limited.
- Archbee Plumbing and Heating LtdPlumbers and heating engineers
- Assured Electrical Contractors LimitedElectricians
- BNC Engineering Services South East LimitedMachinery repair and installation
- Chemidose LimitedSpecialist contractors
- Creed Developments LtdProperty developers
- Europework LimitedCivil engineering
- Gransden Contracts LimitedFinishing trades
- Gransden Dry Ice Blasting LtdCleaning companies
- Jab Plumbing & Heating LtdPlumbers and heating engineers
- Kent Auto Salvage LimitedMotor traders
- Middlefields LimitedProperty developers
- PJS Resources LtdSpecialist contractors
- Qas Mechanical LimitedFinishing trades
- SLK Plumbing & Heating LimitedPlumbers and heating engineers
- Tony Conway LtdSpecialist contractors
- Volt and Valve Site Services LtdElectricians
- WT Renewables LtdElectricians
What happens if CDM Maintenance and Construction 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 May 2027.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 1 Jun 2027 to 30 Jun 2027 | £150 |
| 1 to 3 months late | 1 Jul 2027 to 31 Aug 2027 | £375 |
| 3 to 6 months late | 1 Sep 2027 to 30 Nov 2027 | £750 |
| More than 6 months late | From 1 Dec 2027 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Sep 2027 | £200 |
| 3 months late | 30 Nov 2027 | another £200 |
| 6 months late | 29 Feb 2028 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 31 Aug 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
- 03421083
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 18 August 1997 (29 years ago)
- Registered office
- c/o Uhy Hacker Young, Thames House, Roman Square, Sittingbourne, Kent, ME10 4BJ
- Nature of business
- Other construction installation (SIC 43290)
- Year end
- 31 August (accounting reference date)
- Accounts type
- Micro-entity
- Last accounts made up to
- 31 August 2025
- Last confirmation statement
- 18 August 2026
- Charges (mortgages)
- 1 outstanding of 1 registered
Filing notes for installation companies (insulation, lifts, shutters and similar)
Installation companies (insulation, lifts, shutters, solar and similar) often buy stock and equipment up front, so stock at the year end and capital allowances both affect the tax bill.
Similar companies in Sittingbourne
Other active installation companies (insulation, lifts, shutters and similar) registered in Sittingbourne.
- Chandler Mechanical Services Limited2009
- Class Glass Limited2019
- DGC Glazing Ltd2023
- G.J.B Utilities Limited2022
- H Smith Services Limited2018
- Henderson FM Ltd2018
- Iris Environmental Installations Ltd2022
- Kitchen Wraps UK Ltd2018
All installation companies (insulation, lifts, shutters and similar) in Sittingbourne · All trades in Sittingbourne · Installers across the UK
Frequently asked questions
When are CDM Maintenance and Construction Limited's accounts due?
CDM Maintenance and Construction Limited's next accounts are due at Companies House by 31 May 2027 (in 231 days), covering the period to 31 August 2026.
When is CDM Maintenance and Construction Limited's CT600 due?
The CT600 for the period to 31 August 2026 is due at HMRC by 31 August 2027, 12 months after the period end. The corporation tax itself is payable earlier, by 1 June 2027.
Is CDM Maintenance and Construction Limited still trading?
CDM Maintenance and Construction 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 CDM Maintenance and Construction Limited do?
CDM Maintenance and Construction Limited is registered under Other construction installation (SIC 43290).
How old is CDM Maintenance and Construction Limited?
CDM Maintenance and Construction Limited was incorporated on 18 August 1997, 29 years ago.
What is the penalty if CDM Maintenance and Construction 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 CDM Maintenance and Construction 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.