New Forest Building & Maintenance Ltd
Window & double glazing company registered in Southampton, Hampshire
Registered address
11 CHARMUS ROAD, CALMORE, Southampton SO40 2RG
✓ Active on Companies House
Companies House number17082269
IncorporatedMarch 2026
0 years on the register
0 years on the register
Company typePrivate Limited Company
Trade (SIC 43320)Joinery installation (windows, doors & frames)
Accounts on fileNo accounts filed yet · next due December 2027
Also registered for41100 - Development of building projects; 41202 - Construction of domestic buildings; 43220 - Plumbing, heat and air-conditioning installation
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 New Forest Building & Maintenance 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.
How to vet a window installer before you hire →Need a window installer in Southampton?
Free, no-obligation quotes from FENSA or Certass registered installers near you.
Get Free Quotes →Window help for Southampton
Is New Forest Building & Maintenance Ltd 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 (SO40 2RG) directly on the FENSA or Certass website before booking, and ask to see the certificate number.
How much does window replacement cost in Southampton?
A single uPVC window in Southampton 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.
Should I repair or replace my windows?
Repair makes sense for a failed seal (misted double glazing), a worn handle or hinge, or a damaged lock on an otherwise sound frame — usually a straightforward swap. Replacement is the better value once frames are warped, draughty, rotten (on timber) or past roughly 20 to 25 years old, or when several units across the house have failed. Ask the installer to price both where it's borderline.
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.