We supply and fit aluminium windows, doors and glazing repairs across Northampton and the surrounding Northamptonshire area, covering NN1–NN7. Typical supplied-and-fitted cost for a standard 1200 × 1200mm casement in Northampton is £660–£990.
Northampton housing is dominated by Victorian terraces in Abington and Kingsthorpe, interwar semis through Duston, and a large modern estate stock to the east. That matters, because the right window is the one that suits the stock — not the one the salesperson has in the van.
Northampton has conservation areas including Boot and Shoe Quarter and Abington Park. Replacing windows is permitted development for most houses, but a conservation area with an Article 4 direction removes that right, flats have no permitted development rights at all, and a listed building always needs listed building consent.
Check with West Northamptonshire Council before you order anything. A pre-application conversation costs nothing; an enforcement notice costs a great deal. In practice, conservation officers object to thick sightlines rather than to aluminium as a material — which is exactly why a slim aluminium heritage profile is routinely accepted where uPVC is refused.
Northampton sits in the East Midlands pricing band, which runs at roughly 94% the national average. These are supplied-and-fitted ranges including VAT.
| Job | Typical cost |
|---|---|
| Casement window, approx. 600 × 900mm supplied & fitted | £490 – £710 |
| Casement window, approx. 1200 × 1200mm supplied & fitted | £660 – £990 |
| Casement window, approx. 1800 × 1200mm supplied & fitted | £920 – £1,360 |
| Tilt & turn window, approx. 1200 × 1200mm supplied & fitted | £800 – £1,180 |
| Three-section bay window supplied & fitted | £2,070 – £3,380 |
| Bi-fold door, 3 panes, approx. 3m supplied & fitted | £3,570 – £5,640 |
| Whole house, 3-bed semi (8–10 windows) supplied & fitted | £6,110 – £10,340 |
Ranges include VAT and installation. Final price depends on size, spec, access and site condition — a survey gives you a fixed number.
Most window faults are repairs, not replacements. A misted unit is £80–£190 and keeps your existing frame. A handle is £40–£100. A dropped sash is usually a hinge, at £60–£110. And if a window is broken or a door will not lock, we treat it as an emergency — same day where a fitter is free in your NN postcode, next day everywhere else.
| Job | Typical cost |
|---|---|
| Misted / blown double glazed unit, replaced per unit | £80 – £190 |
| Same-day glass replacement, standard pane per pane | £120 – £280 |
| Emergency boarding up per opening | £90 – £180 |
| Window or door handle replaced per handle | £40 – £100 |
| Friction hinge replaced per hinge | £60 – £110 |
| Lock / locking mechanism replaced per lock | £80 – £180 |
Ranges include VAT and installation. Final price depends on size, spec, access and site condition — a survey gives you a fixed number.
We cover NN1–NN7, plus the wider West Northamptonshire Council area.
A standard 1200 × 1200mm aluminium casement window typically costs £660–£990 supplied and fitted in Northampton, reflecting East Midlands pricing. A small window runs £490–£710 and a large one £920–£1,360. A full three-bed semi generally lands between £6,110 and £10,340.
We cover NN1–NN7 and the surrounding Northamptonshire area. If you are just outside, put your postcode on the quote form and we will confirm your local installer and lead time.
For most houses, no — it is permitted development. But Northampton has conservation areas including Boot and Shoe Quarter and Abington Park, so check with West Northamptonshire Council before you order: a conservation area with an Article 4 direction removes permitted development rights, and a listed building always needs consent.
Yes. Broken glass, a door that will not lock, a break-in or storm damage are treated as emergencies — same day where a fitter is free in your postcode, next day everywhere else. Boarding up is £90–£180 and same-day glass replacement £120–£280.
Free survey, fixed price, no pressure. Or call us and we'll give you a realistic ballpark in five minutes.
