Cj Improve & Develop Limited
Window & double glazing company registered in Gravesend, Kent
Registered address
SUITE 2007, KENT SPACE LTD SPRINGHEAD ROAD, NORTHFLEET, Gravesend DA11 8HJ
✓ Active on Companies House
Companies House number11466868
IncorporatedJuly 2018
8 years on the register
8 years on the register
Company typePrivate Limited Company
Trade (SIC 43320)Joinery installation (windows, doors & frames)
Accounts on fileFull accounts, small-company exemption · last filed July 2025 · next due April 2027
Also registered for33200 - Installation of industrial machinery and equipment; 43290 - Other construction installation; 81300 - Landscape service activities
Listed from the public Companies House register, not an endorsement. Quote requests go to FENSA or Certass registered installers covering your postcode, not necessarily this company. Accounts filing category reflects company size under Companies House rules, not service quality. Map location is approximate, based on the registered postcode.
Before you book Cj Improve & Develop Limited
This page confirms the company is on the Companies House register. It does not confirm FENSA or Certass registration, insurance, or trading status. Check those yourself first.
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Is Cj Improve & Develop Limited FENSA or Certass registered?
This directory does not confirm registration. Window and door installers self-certify their work against Building Regulations through a Competent Person Scheme — mainly FENSA or Certass — so check the company name or postcode (DA11 8HJ) directly on the FENSA or Certass website before booking, and ask to see the certificate number.
Is new double glazing covered by a warranty?
uPVC frames typically carry a 10 year manufacturer or insurance-backed guarantee, and sealed glazed units are usually guaranteed separately for 5 to 10 years against misting. Register the guarantee after installation and keep the FENSA or Certass certificate — a buyer's solicitor will ask for it if you sell the property.
What is a FENSA or Certass certificate and why does it matter?
It's proof the window or door installation meets Building Regulations (thermal performance, safety glazing, ventilation) without a separate council building control sign-off. Without one, selling the property can mean paying for retrospective building control inspection or indemnity insurance, so keep the certificate with your house documents.
Does a listing here mean Cj Improve & Develop Limited is recommended?
No. Companies appear in this directory because they are on the Companies House register under a window/joinery installation trade code. A listing is not vetting, endorsement, or a guarantee that the company is trading or FENSA/Certass registered.
How many window and glazing companies are there in Kent?
This directory holds 478 active window and glazing businesses across 41 towns in Kent, all from the Companies House register. Gravesend accounts for 38, among the county's busiest. About 26% of Kent's registered window and glazing firms were incorporated in the last three years, so weigh incorporation date and FENSA/Certass registration, not just company age.