- Company number
- 07449346
- Incorporated
- 24 Nov 201015 years trading
- Registered office
- 28 Edward Street, Treharris, Mid Glamorgan, CF46 5LF
- Nature of business
- Glazing
Deco Glass & Glazing Ltd is a 15-year-old private limited company registered in Treharris, company number 07449346, one of the UK's glazing companies. 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 £14K (+5.2%) on the year before, to £275K.
- Net assets rose in 7 of 9 year-on-year comparisons on record.
- Current assets of £278K against £186K owed within a year: 1.5 times cover.
- 12 employees on average, up from 10 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 Dec 2025 | £275K | £196K | £278K | £186K | 12 |
| 31 Dec 2024 | £261K | £192K | £329K | £223K | 10 |
| 31 Dec 2023 | £160K | £242K | £224K | 9 | |
| 31 Dec 2022 | £47K | £133K | 7 | ||
| 31 Dec 2021 | £33K | £130K | £167K | 7 | |
| 31 Dec 2020 | £38K | £129K | £146K | 8 | |
| 31 Dec 2019 | £76K | £102K | £113K | 8 | |
| 31 Dec 2018 | £54K | £86K | £118K | ||
| 31 Dec 2017 | £52K | £109K | £147K | ||
| 31 Dec 2016 | £38K | £95K | £75K |
Public contracts won
Deco Glass & Glazing Ltd has 2 public sector contract awards on record (2026). Source: Contracts Finder and Find a Tender award notices. For all 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
- Merthyr Tydfil Housing Association1 award
- Caerphilly County Borough Council1 award
| Buyer | Contract | Value | Awarded |
|---|---|---|---|
| Merthyr Tydfil Housing Association | Merthyr Housing Maintenance Framework | Ceiling, not shown | 5 Aug 2026 |
| Caerphilly County Borough Council | General Builders Reactive Maintenance, Repairs, Small Planned and Emergency Works | Ceiling, not shown | 29 Apr 2026 |
Where Deco Glass & Glazing Ltd is registered
The registered office is in Treharris (CF46), in the Merthyr Tydfil local authority area, Wales. Show CF46 5LF on a map.
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What happens if Deco Glass & Glazing 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
- 07449346
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 24 November 2010 (15 years ago)
- Registered office
- 28 Edward Street, Treharris, Mid Glamorgan, CF46 5LF
- Nature of business
- Glazing (SIC 43342)
- Year end
- 31 December (accounting reference date)
- Accounts type
- Total exemption (full)
- Last accounts made up to
- 31 December 2025
- Last confirmation statement
- 10 December 2025
Filing notes for glazing companies
Glazing companies often take deposits before work starts. Deposits held at the year end are a liability, not income, until the job is done.
Similar companies in Treharris
Other active glazing companies registered in Treharris.
- County Windows (Heathfield) Limited2010
- Glass & Glazing Services (Hull) Limited2010
- Concept Glass Contracts Limited2010
- Central Glass and Windows Limited2010
- Park Farm Design Ltd2010
- Plastic Window Systems Limited2010
- GCS Windows Ltd2010
- Morse Windows Ltd2010
All glazing companies in Treharris · All trades in Treharris · Glaziers across the UK
Frequently asked questions
When are Deco Glass & Glazing Ltd's accounts due?
Deco Glass & Glazing 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 Deco Glass & Glazing 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 Deco Glass & Glazing Ltd still trading?
Deco Glass & Glazing 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 Deco Glass & Glazing Ltd do?
Deco Glass & Glazing Ltd is registered under Glazing (SIC 43342).
How old is Deco Glass & Glazing Ltd?
Deco Glass & Glazing Ltd was incorporated on 24 November 2010, 15 years ago.
Has Deco Glass & Glazing Ltd won public sector contracts?
Yes. Deco Glass & Glazing Ltd has 2 contract awards from public bodies on Contracts Finder and Find a Tender, most recently from Merthyr Tydfil Housing Association.
What is the penalty if Deco Glass & Glazing 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 Deco Glass & Glazing 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.