Northampton door specialists
Beautiful doors, professionally supplied & fitted across Northamptonshire
Composite, French, patio, bi-fold and uPVC doors supplied and installed by an experienced local team trusted by homeowners throughout Northamptonshire.
- Established Northampton business
- Trusted locally since 1992
- Experienced in-house installation team
- Free home surveys and quotations
- Covering Northampton and Northamptonshire
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About us
A Northampton firm that supplies and fits doors
MG Window Systems started in 1992 as a window manufacturing business, and still works from the same building on the Rothersthorpe estate. MG Doors is the same company and the same installers.
Help with choosing your door
What happens next
Design your door
Use the door designer to pick the colour, glass and hardware before we visit.
Send an enquiry
Tell us the door and the address. We will arrange a survey to measure the opening.
Receive your quote
A written quotation within 48 hours of the survey, with no obligation to go ahead.
New door fitted
Once you are happy, we make the door and fit it — typically within four weeks.
The range
The doors we supply and fit
Five types. Here is what each one is for, so you can choose before we visit.
Start here
Composite doors
A front door with a wide choice of colour and glazing, fitted fully framed.
- Made of
- uPVC, timber, insulating foam and a GRP skin
- Opens
- Single or double, hinged, fully framed
uPVC doors
A straightforward replacement front or back door, on the VEKA system MG has fitted since the mid-2000s.
- Made of
- VEKA uPVC profile
- Opens
- Single or double, hinged
French doors
Two doors that both open, for a patio or a garden.
- Made of
- uPVC or aluminium
- Opens
- Double, hinged, opening in or out
Sliding patio doors
A patio door that slides, so nothing swings into the room.
- Made of
- uPVC or aluminium
- Opens
- Sliding on a track
Bi-fold doors
Doors that fold back to open up the back of the house.
- Made of
- Aluminium
- Opens
- Folding, stacking to one or both sides
Door designer
Design the door, then we will come and measure it
Colour, glass and hardware, on MG’s own designer. It opens in a new tab so it can use the whole screen.
Doors we have fitted
Real Installations. Real Homes.
Explore a selection of door installations completed by MG across Northampton and the surrounding area.
Sage green composite with a matching glazed side panel. 
Oak-effect composite with a square glazed panel. 
Anthracite composite with diamond glazing, at dusk. 
Oak-effect composite under a brick arch. 
White uPVC French doors onto a paved patio. Sage green composite with a leaded light, Victorian porch.
What our customers say
From first visit through to aftercare
How we work
Come and look at doors before you decide
We trade from our own yard in Northampton. The showroom is by appointment, so you get someone who can answer questions rather than a busy shop floor.
- Where we are
- Unit 1, 3 Letts Road, Rothersthorpe Industrial Estate, Northampton, NN4 8HQ
- Opening hours
- Monday to Friday, 7.30am to 4.30pm
- Showroom
- By appointment
- Telephone
- 01604 877977
Free quote
Tell us which door, and we will come and measure it.
A free quote, no obligation
We measure, we quote, you decide.
Quoted after we measure
A door’s cost depends on the opening, the glass and the hardware. We measure first, then quote.
Who you are dealing with
MG Window Systems Ltd, established in 1992, trading from this Northampton yard.
Or telephone 01604 877977 — Monday to Friday, 7.30am to 4.30pm. Showroom by appointment.