Jb Carpentry (southern) Ltd
Window & double glazing company registered in Portsmouth, Hampshire
Registered address
SUITE 1 GROUND FLOOR, 4 QUAY POINT, NORTHARBOUR ROAD, Portsmouth PO6 3TD
✓ Active on Companies House
Companies House number14164808
IncorporatedJune 2022
4 years on the register
4 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 June 2025 · next due March 2027
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 Jb Carpentry (southern) Ltd
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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How much does window replacement cost in Portsmouth?
A single uPVC window in Portsmouth typically runs £300 to £600 supplied and fitted; a full house of 8 to 10 windows is often £3,000 to £8,000 depending on style (casement, bay, sash-look) and glazing spec. Get two or three written, itemised quotes before agreeing to work.
How do I get a quote from a window installer in Portsmouth?
Use the "Get Free Quotes" form on this page. Your job details go to FENSA or Certass registered installers covering the PO postcode area, who contact you directly. Portsmouth has 35 registered window and glazing businesses in this directory, though the installers who quote are not necessarily among them. It is free and there is no obligation.
Can I see reviews for Jb Carpentry (southern) Ltd?
Not here. This is a register-based directory, not a review site. Look at independent review platforms, ask the installer for recent local references, and confirm FENSA or Certass registration before any work starts.
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 Jb Carpentry (southern) Ltd 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.