Mn General Builder Ltd
Window & double glazing company registered in Birmingham, West Midlands
Registered address
19 CONISTON ROAD, Birmingham B23 6HH
✓ Active on Companies House
Companies House number14664508
IncorporatedFebruary 2023
3 years on the register
3 years on the register
Company typePrivate Limited Company
Trade (SIC 43320)Joinery installation (windows, doors & frames)
Accounts on fileMicro-entity accounts (smallest filing band) · last filed February 2026 · next due November 2027
Previously namedMn General Ltd (until March 2023)
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 Mn General Builder 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 Birmingham?
Free, no-obligation quotes from FENSA or Certass registered installers near you.
Get Free Quotes →Window help for Birmingham
Is Mn General Builder 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 (B23 6HH) directly on the FENSA or Certass website before booking, and ask to see the certificate number.
How much does window replacement cost in Birmingham?
A single uPVC window in Birmingham 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 Birmingham?
Use the "Get Free Quotes" form on this page. Your job details go to FENSA or Certass registered installers covering the B postcode area, who contact you directly. Birmingham has 151 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.
Do uPVC windows need any maintenance?
Not much, but not none. Wipe the frames a few times a year, lubricate hinges and locks annually, and keep the drainage channels along the bottom of the frame clear so water can't pool and find its way inside. There is no statutory annual service like a boiler needs.
Can I see reviews for Mn General Builder 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.