Double Glazing in Crawley
If you’re comparing quotes for double glazing in Crawley, you’ll want an installer who turns up when they say they will, explains what’s actually wrong with your windows, and stands behind the work afterwards. That’s the job Glitz Windows & Doors does across Crawley and the surrounding RH postcodes — new double glazed windows, replacement doors, conservatories and porches, plus repairs when a full replacement isn’t actually needed.
We’re a FENSA-registered, family-run company with more than 25 years in windows, doors and conservatories. You’ll speak to the same team from your first enquiry through to the FENSA completion certificate landing on your doormat — no call centre, no subcontracted fitters you’ve never met
Why Crawley homes need good double glazing
Crawley’s housing stock is a genuine mix. Much of the town was built as a post-war New Town from 1947 onwards, so a large share of properties in Three Bridges, Ifield, Tilgate, Furnace Green, Gossops Green and Pound Hill are now at the age where original or early-replacement windows have worn seals, stiff hinges, or double glazed units that have “blown” (that cloudy, misted look between the panes). Newer estates around Maidenbower, Broadfield and Bewbush tend to have better-performing glazing, but even 15–20-year-old sealed units can lose their gas fill and start underperforming.
Crawley’s position next to Gatwick Airport is also worth factoring in. Homes under or near the flight paths — parts of Langley Green, Lowfield Heath and Three Bridges in particular — benefit noticeably from double glazing specified with noise reduction in mind, not just thermal performance. It’s a detail we build into the survey rather than an upsell we add later.
Whatever the reason you’re looking — draughts, condensation on the inside of the glass, rising energy bills, or windows that simply don’t lock properly any more — the starting point is the same: a proper survey, not a guess over the phone.
Double glazing installation in Crawley
We supply and fit A-rated uPVC, aluminium and timber-effect double glazing, made to measure for your property rather than sold off a standard size chart. Every installation includes:
- A free, no-obligation home survey and measurement at your Crawley property
- Made-to-measure frames matched to your property’s age and style
- FENSA-registered fitting, compliant with Part L (energy efficiency) and Part Q (security) of the Building Regulations
- A FENSA completion certificate for your records — you’ll need this if you sell the property
- A 10-year manufacturer guarantee on every new installation
Window styles we fit in Crawley
- Casement windows — the most common style across Crawley’s New Town housing; simple, efficient, and cost-effective to replace like-for-like
- Tilt and turn windows — popular for upper floors and flats, since they open inward for easy cleaning and safer ventilation
- Bay and bow windows — a common feature on Crawley’s 1930s and Edwardian-influenced homes around Ifield and Worth, and a strong way to add light and perceived space to a room
- Sash-style and timber-effect windows — for period or conservation-sensitive properties where a uPVC casement wouldn’t look right
All of our double glazing is available with A-rated, low-E glass and argon gas fill as standard, which is what actually does the work of keeping heat in during winter and reducing the cold-glass feeling in a room — not just the number of panes.
Door styles we fit in Crawley
We supply and fit doors alongside our double glazing, built to the same A-rated, FENSA-compliant standard as our windows:
- Composite front doors — the most popular choice for Crawley homes wanting genuine security and insulation without the maintenance of timber; available in a wide range of colours and finishes
- uPVC front and back doors — a cost-effective, low-maintenance option that matches well with uPVC window installations
- French doors — a neat way to open a dining room or kitchen onto the garden while keeping the same thermal performance as the rest of the house
- Patio doors — sliding options that suit rear extensions and conservatory links, common on Crawley’s larger family homes around Maidenbower and Pound Hill
- Bifold doors — for a wider, fully-opening connection between an extension or conservatory and the garden
Every door is fitted by the same FENSA-registered team that handles your windows, backed by the same 10-year guarantee, and multi-point locking comes as standard for Part Q compliance.
Double glazing repairs in Crawley
New windows aren’t always the answer, and we’ll tell you honestly when they’re not. A lot of what looks like “the whole window has gone” is actually a fixable fault:
- Misted or “blown” double glazing units — condensation trapped between the panes means the seal has failed. In many cases we can replace just the glass unit rather than the entire frame, which is faster and considerably cheaper than a full window replacement
- Draughty or hard-to-close windows — usually worn seals, hinges or handles, not a structural problem with the frame
- Faulty locks, hinges and handles on windows and doors — a common call-out, especially on uPVC doors that have seen 10+ years of daily use
- Broken or failed sealed units, replaced without disturbing the surrounding frame wherever possible
- General wear on uPVC frames — discolouration, stiff mechanisms, and worn weatherseals
If you’re not sure whether your Crawley property needs a repair or a full replacement, we’ll assess it — often from photos over the phone before we even visit — and give you a straight recommendation rather than a quote for the more expensive option.
H2: Conservatories and porches in Crawley
Double glazing isn’t only windows and doors (see our door range above). We also handle:
- Conservatory repairs and replacement roofs — including leaking conservatory roofs, a frequent issue on older polycarbonate roofs installed in the 1990s and 2000s
- Double-glazed porches — a cost-effective way to add an insulated entrance and extra security without a full extension
How Crawley Customers Work With Us
25+ Years' Experience
In windows, doors and conservatories.
FENSA Registered
Fully insured, with every installation compliant with Part L and Part Q.
A-Rated Energy-Efficient Glazing
Designed to help reduce heat loss and lower heating bills.
10-Year Guarantee
Provided on all new installations for added peace of mind.
Genuinely Local Team
No subcontracted call centres, with direct contact throughout your project.
Repairs & Installations
The same experienced team handles both repairs and full installations, so you're not passed between different tradespeople.
Double Glazing Crawley - FAQs
Do you repair double glazing in Crawley, or only install new windows?
Both. We carry out repairs such as misted units, faulty hinges, locks and draughty frames, as well as full window and door installations.
Do I need to visit your office to get a quote?
No. We offer free surveys at your Crawley property, and simple repair enquiries can often be assessed by phone or from photos before we visit.
How long does a typical repair or installation take?
Most repairs and single window replacements are completed in a day. Larger projects, such as a full house re-glaze, typically take 2–5 days depending on scope — we’ll confirm the timeline before work starts.
Are your installations FENSA registered?
Yes. All installations are carried out by FENSA-registered fitters and come with a completion certificate, which you’ll need if you sell your home.
What if my double glazing is misted but the frame is otherwise fine?
In many cases we can replace just the sealed glass unit rather than the whole frame — quicker and more cost-effective than a full window replacement.
Is double glazing worth it for a flight-path property near Gatwick?
Yes, in most cases. Standard A-rated double glazing already cuts a meaningful amount of external noise compared with single glazing, and for properties that need more, acoustic glass specifications are available — we’ll advise on this at survey stage rather than assume you need the upgrade.
Do you need planning permission for double glazing in Crawley?
Most replacement double glazing falls under permitted development and doesn’t need planning permission, provided it meets Building Regulations. Properties in conservation areas or listed buildings may have additional restrictions — we’ll flag this during the survey if it applies to your property.
What Do We Offer
Double glazing
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Upvc Windows
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Composite Front Doors
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Windows and Doors
If you’re searching for high-quality windows and doors in Sutton, Glitz Windows is here to deliver. We specialise in supplying and fitting uPVC windows, double glazing,
DOORS
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Porches
Enhance your home’s entrance with a custom-built porch from GLITZ Windows & Conservatories Ltd, Croydon’s trusted specialists in porch design and installation.
Bifold Doors
Transform your home or business with sleek, modern bifold doors from GLITZ Windows & Conservatories Ltd, your trusted specialists in Croydon. Our high-quality bifold door
Roof Lantern & Rooflight
At GLITZ Windows & Conservatories Ltd, we design and install stunning roof lanterns and rooflights in Croydon, bringing natural light and architectural elegance to your home
Conservatories
Add light, space, and value to your home with a beautifully crafted conservatory from GLITZ Windows & Conservatories Ltd, Croydon’s trusted specialists in bespoke home extensions.
Make Appointment
Get a free quote with no obligation - Contact us now
Have a unique idea or specific requirements? Our team specialises in tailored window and door solutions to suit your vision—built to exact specifications and installed with precision.
- 53 Chipstead Valley Rd, Coulsdon CR5 2RB
- info@glitzwindows.co.uk
- 020 3370 7955
- Mon-Fri 08:00 - 17:00
Make Appointment
Get a free quote with no obligation - Contact us now
Have a unique idea or specific requirements? Our team specialises in tailored window and door solutions to suit your vision—built to exact specifications and installed with precision.
- 53 Chipstead Valley Rd, Coulsdon CR5 2RB
- info@glitzwindows.co.uk
- 020 3370 7955
- Mon-Fri 08:00 - 17:00
Our Process
Four Steps to Order Window for Your Home
