System 3 provide a comprehensive window and doors repair service our van is well stocked with all popular handles hinges, locks replacement seals and letter boxes. Door locking mechanisms can be repaired at the fraction of the cost of a new door.

Should your lock not be available or discontinued we can adapt the lock to suit your application.

We will not compromise your home security

Locked out of your home or keys lost quick economic lock changes

Failed double glazing units or doors panels.

Customer Reviews

Here are genuine reviews from Rated People, check here




 Excellent job”    karen, NE38

Glazing – Double / Single

Great quote. Swift service. Issues sorted immediately. Would use again for any future jobs.James, NE30


Glazing – Double / Single

I would recommend System 3 to anyone looking for great quality work at a great price. Our windows were measured, ordered and fitted very quickly without fuss or mess, very impressed.Bev, NE26


Internal Renovation / Reconfiguration

Reliable, punctual, polite and completed the work as quoted. Highly recommended.Andrew, NE9
Services on upvc doors and windows include:
    • Misted sealed units replaced
    • Lock changes
    • Non – destructive door opening
    • Fully equipped van with most issues corrected in a single visit
lazer gauge to check unit specification

Areas covered for Double Glazing Repairs:

  • Peterlee
  • Easington Colliery
  • Durham
  • Hartlepool
  • Middlesbrough
  • Bishop Auckland
  • Stanley
  • Seaham
  • Sunderland

and outlining areas!

Contact 0191 5272883 or 07894983436 Text quote:- send a text to 07894983436 with your contact details and we will get back in touch.