Double Glazing Northampton
Draughty frames and a creeping energy bill often send homeowners near Northampton’s older terraces looking for double glazing, while in newer builds out at Upton it’s usually a misted sealed unit instead.
Apex fits uPVC windows and doors made to measure, for warmer rooms and a more secure home. All prices include fitting and VAT, with no hidden extras. Get an instant quote using the online calculator; no rep visit required.
Nick Mutton, CC BY-SA 2.0
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Why Choose Apex Windows in Northampton?
Most double glazing companies still send a salesperson to your home before giving you a price. Apex doesn’t.
If you’ve had a rep sit in your living room for two hours before, you’ll know why that matters. Price your own windows and doors on our online calculator in under ten seconds, from a Victorian terrace near the Boot and Shoe Quarter to a new build out at Upton, with no appointment and no commission-driven sales visit.
Apex has been fitting windows and doors for over 30 years, based in Luton and serving Northampton and Northamptonshire. Every fitter is directly employed, not a subcontractor, so quality doesn’t vary from job to job.
You’re covered by the 10 Year Insurance Backed Guarantee through InstallSure, and Apex is FENSA registered (No. 31157), endorsed by Which? Trusted Traders and rated 9.83/10 on Checkatrade.
About Apex Windows
Apex Windows has been fitting windows and doors in Northampton and across Northamptonshire since 1989, an established, independent installer rather than a national chain. Every fitter is directly employed, with no subcontractors and no middlemen, so the standard on a job in Kingsthorpe matches the standard on a job in Duston.
Every quote includes VAT and fitting as standard, with no hidden costs added once the work starts.
Our Double Glazing Service in Northampton
Northampton’s housing runs from Victorian terraces around the Boot and Shoe Quarter and 1930s semis in Kingsthorpe to newer estates at Upton and Hunsbury Meadows. That spread means a straight choice isn’t always obvious: an older frame often needs full replacement, while a ten-year-old sealed unit might only need repairing.
Most Northampton homes take casement windows, the standard choice across the 1930s semis in Kingsthorpe. Terraces near the Boot and Shoe Quarter often suit sliding sash windows or flush sash windows instead, keeping the period look while fitting A+13 rated glazing behind it. Closer to the M1 around Duston or Upton, triple glazing rated A++21 cuts motorway noise as well as heat loss.
If a newer Hunsbury Meadows build has a failed sealed unit but sound frames, Apex also carries out double glazing repairs and replacement sealed units rather than a full swap. All prices include VAT and fitting.
An old front door that doesn’t lock properly, or just looks tired next to the rest of the house, is reason enough to replace it, and in Northampton that’s as much a security question as a comfort one. Composite and uPVC front doors come with multi-point locking and toughened safety glass as standard, the lock built into the frame itself rather than fitted as an afterthought.
Patio and French doors suit the newer estates at Upton and Hunsbury Meadows, where open-plan kitchens often lead straight onto the garden. All prices include VAT and fitting. Price your doors on the instant online calculator.
Victorian terraces around the Boot and Shoe Quarter often have the narrow plots that suit Victorian conservatories, while the larger rear gardens on 1930s Kingsthorpe semis give more room for Edwardian conservatories.
Modern glazing keeps either style usable through a Northampton winter rather than a glorified summer room. One directly employed team handles the job from design to completion, backed by the 10 Year Insurance Backed Guarantee. Speak to our team about your conservatory.
What Our Customers Say
Frequently Asked Questions
Will new windows actually reduce motorway noise?
Yes, especially if you upgrade to triple glazing. The extra pane and wider air gap cut sound transmission noticeably more than standard double glazing, which matters if you’re near the M1 around Duston or Upton. Triple glazing is rated A++21 for energy efficiency as well, so the same upgrade that quietens the house also cuts the heating bill.
Is it worth replacing 30-year-old double glazing, or can the sealed units just be repaired?
In Kingsthorpe’s 1930s semis and the terraces around the Boot and Shoe Quarter, the frame tends to age at the same rate as the glass, so a repair alone is usually a short-term fix. A full replacement is covered by the 10 Year Insurance Backed Guarantee and rates A+13 across the whole window, not just the glass. Apex can also repair sealed units alone where the frame’s sound.
My sealed units have failed but the frames look fine. Do I need a full window replacement?
Not necessarily. If the frames in a newer Upton or Hunsbury Meadows build are still solid, Apex can replace just the sealed unit rather than the whole window. It’s worth having it checked properly though, since a locking mechanism or seal can wear out at the same rate as the glass. All repair and replacement quotes include VAT and fitting.
Can I replace my windows if my home is in a conservation area?
Possibly, depending on exactly where you are. Northampton has several heritage Article 4 directions, including areas around Abington Park, Barrack Road, Billing Road, Derngate and parts of Kingsthorpe, which can restrict window replacement. The rules vary by area and do change, so check with West Northamptonshire Council first; Apex can fit sliding sash or flush sash windows that keep a period look where a like-for-like style is required.
Do I need planning permission for a conservatory in Northampton?
Most conservatories fall under permitted development and don’t need planning permission, provided they meet size and height limits and the property isn’t in a conservation area. In parts of Northampton that are, including Kingsthorpe and Abington Park, the rules are stricter, so it’s worth checking with West Northamptonshire Council first. Apex handles the design process start to finish, so this gets checked before anything is ordered, not after.
Are you FENSA registered?
Yes. Apex Windows is FENSA registered, No. 31157, which confirms every installation meets current building regulations and energy efficiency requirements. You’ll get a FENSA certificate after the work is complete, which you’ll need if you sell the property later.
Do I need to wait for a salesperson to visit before I can get a price?
No. Get an instant price on double or triple glazed windows in under 10 seconds with Apex’s online calculator, no appointment and no rep on your doorstep. Need a quote for doors or a conservatory? Speak to our team and we’ll sort it quickly.
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Call us today and speak to our friendly team who are ready to help discuss your needs.
Office Hours: Mon - Fri | 08:00 - 17:00