- Company number
- 15115727
- Incorporated
- 5 Sep 20233 years trading
- Registered office
- Office 11, 41-45 Lind Road, Sutton, SM1 4PP
- Nature of business
- Glazing
Theorem Facades Ltd is a 3-year-old private limited company registered in Sutton, company number 15115727, one of 17 glazing companies in Sutton. 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 down £130K (-225.6%) on the year before, to -£73K.
- 3 employees on average, up from 0 the year before.
- Balance sheets on record for 2 years, 2024 to 2025.
Net assets by year
| Year end | Net assets | Cash | Current assets | Owed within a year | Employees |
|---|---|---|---|---|---|
| 31 Dec 2025 | -£73K | £0 | £73K | 3 | |
| 31 Dec 2024 | £58K | £111K | £53K | 0 |
Where Theorem Facades Ltd is registered
The registered office is in Sutton (SM1), in the Sutton local authority area, London. Show SM1 4PP on a map.
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- Patchs Builder LimitedFinishing trades
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- Macgregor Landscapes and Gardens LtdLandscapers and gardeners
What happens if Theorem Facades 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
- 15115727
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 5 September 2023 (3 years ago)
- Registered office
- Office 11, 41-45 Lind Road, Sutton, SM1 4PP
- Nature of business
- Glazing (SIC 43342)
- Year end
- 31 December (accounting reference date)
- Accounts type
- Micro-entity
- Last accounts made up to
- 31 December 2025
- Last confirmation statement
- 5 October 2026
- Previous names
- Theorem Windows Ltd (until 5 Feb 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 Sutton
Other active glazing companies registered in Sutton.
- UPVC Limited1991
- Ype Spitfire Limited2016
- Alaskan Windows Ltd2004
- Astral Security Windows Limited1998
- Awm Windows Limited2012
- Barn Glass Group Limited1964
- Barn Glass Solutions Limited2017
- Chelsea Windows Limited2002
All glazing companies in Sutton · All trades in Sutton · Glaziers across the UK
Frequently asked questions
When are Theorem Facades Ltd's accounts due?
Theorem Facades Ltd's next accounts are due at Companies House by 30 September 2027 (in 353 days), covering the period to 31 December 2026.
When is Theorem Facades 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 Theorem Facades Ltd still trading?
Theorem Facades Ltd is listed as active on the Companies House register (checked 12 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 Theorem Facades Ltd do?
Theorem Facades Ltd is registered under Glazing (SIC 43342).
How old is Theorem Facades Ltd?
Theorem Facades Ltd was incorporated on 5 September 2023, 3 years ago.
What is the penalty if Theorem Facades 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 Theorem Facades Ltd on Companies House for filed documents, officers and the full history.
Based on the Companies House register (snapshot 1 Oct 2026, rechecked 12 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.