- Companies
- Installers
- Croydon
- Gilmar and Son Ltd
Gilmar and Son Ltd
- Company number
- 11277085
- Incorporated
- 27 Mar 20188 years trading
- Registered office
- Flat 1, 19, Waddon Park Avenue, Croydon, CR0 4LW
- Nature of business
- Other construction installation; Other building completion and finishing; Other specialised construction activities n.e.c.
Gilmar and Son Ltd is a 8-year-old private limited company registered in Croydon, company number 11277085, one of 68 installation companies (insulation, lifts, shutters and similar) in Croydon. 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 up £4,780 (+14.7%) on the year before, to £37K.
- Net assets rose in 6 of 6 year-on-year comparisons on record.
- Current assets of £41K against £3,915 owed within a year: more than 10 times cover.
- 2 employees on average during the year.
- Balance sheets on record for 7 years, 2019 to 2025.
Net assets by year
| Year end | Net assets | Cash | Current assets | Owed within a year | Employees |
|---|---|---|---|---|---|
| 31 Mar 2025 | £37K | £41K | £3,915 | 2 | |
| 31 Mar 2024 | £32K | £40K | £7,341 | 2 | |
| 31 Mar 2023 | £26K | £35K | £9,187 | 1 | |
| 31 Mar 2022 | £21K | £32K | £1,272 | 1 | |
| 31 Mar 2021 | £14K | £27K | £1,110 | 1 | |
| 31 Mar 2020 | £9,279 | £10K | £1,182 | 1 | |
| 31 Mar 2019 | £4,244 | £11K | £6,435 |
Where Gilmar and Son Ltd is registered
The registered office is in Croydon (CR0), in the Croydon local authority area, London. Show CR0 4LW on a map.
Other trade companies in CR0
- Linx Render LimitedBuilders
- Horus Properly Renovation LimitedBuilders
- Auto & Repairs London LtdMotor traders
- Diyour-Self LtdFloor and wall tilers
- Premier Kitchen Installations LimitedJoiners and carpenters
- VR1 Construct LtdBuilders
- Simply Exterior Solutions LimitedCleaning companies
- Kok Cons LtdBuilders
What happens if Gilmar and Son 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 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
- 11277085
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 27 March 2018 (8 years ago)
- Registered office
- Flat 1, 19, Waddon Park Avenue, Croydon, CR0 4LW
- Nature of business
- Other construction installation (SIC 43290)
Other building completion and finishing (SIC 43390)
Other specialised construction activities n.e.c. (SIC 43999) - Year end
- 31 March (accounting reference date)
- Accounts type
- Micro-entity
- Last accounts made up to
- 31 March 2025
- Last confirmation statement
- 25 March 2026
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 Croydon
Other active installation companies (insulation, lifts, shutters and similar) registered in Croydon.
- Greengoo Limited2010
- HD Maintenance Services Ltd2019
- Hisky Light Ltd2024
- Home Guard Builders Limited2022
- Idc Interiors Limited2009
- J Loading Construction Ltd2025
- JCB Carpentry Ltd2025
- Jefk Ltd2021
All installation companies (insulation, lifts, shutters and similar) in Croydon · All trades in Croydon · Installers across the UK
Frequently asked questions
When are Gilmar and Son Ltd's accounts due?
Gilmar and Son Ltd's next accounts are due at Companies House by 31 December 2026 (in 79 days), covering the period to 31 March 2026.
When is Gilmar and Son Ltd'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 Gilmar and Son Ltd still trading?
Gilmar and Son 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 Gilmar and Son Ltd do?
Gilmar and Son Ltd is registered under Other construction installation (SIC 43290); Other building completion and finishing (SIC 43390); Other specialised construction activities n.e.c. (SIC 43999).
How old is Gilmar and Son Ltd?
Gilmar and Son Ltd was incorporated on 27 March 2018, 8 years ago.
What is the penalty if Gilmar and Son 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 Gilmar and Son 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.