Written by Mark Reid,
Trades Editor ·Verified 23 September 2026
Worthing's housing stock throws up a fair few different jobs for window installers, from the bay windows on Edwardian terraces around Broadwater to the uPVC replacements needed on 1960s and 70s semis out towards Durrington and Findon Valley. Coastal weather doesn't help either. Salt air off the seafront eats away at old timber frames and rubber seals faster than you'd expect, which is why so many homeowners here end up looking into double or triple glazing sooner than planned. Properties near the Teville Gate area and the older streets closer to the town centre often need window installers who understand period proportions and conservation requirements, while newer builds further out are usually straightforward retrofits.
The businesses listed here come from public business listings, and we've ranked them using public review rating and review count as the main factors, with a small lift given to those showing a working website and phone number. We also read through each business's homepage to check that window installation is genuinely their main line of work, which stops general builders or unrelated trades cluttering up the page. Any listing flagged as permanently closed gets removed automatically as part of that process. Where you spot a Trust Verified badge, that business has gone through our fuller verification, covering trade qualifications and accreditations, public liability insurance, trading history, customer review history and registered company information. Our How We Verify page sets out exactly what that involves. For businesses without the badge, none of that has been independently checked by us, so it's worth doing your own homework before you commit to anything.
Before booking, ask to see evidence of FENSA or CERTASS registration, since that's what confirms the work meets building regulations without you needing a separate council inspection. Check what guarantee comes with the frames and the glass units, and get it in writing, not just a verbal promise. Ask how they handle disposal of old frames and whether scaffolding or access equipment is included in the price, because that can add several hundred pounds if it's sprung on you later. Getting two or three quotes is the simplest way to spot if someone's pricing is out of step with the rest of the market, and it also gives you a feel for who actually turns up on time and answers questions properly.
How We Select & Rate The Best Window Installers in Worthing
Ranking is driven mainly by public review rating and review count taken from third-party business listings, with a small lift given to businesses showing a working website and phone number. We check each business's homepage to confirm window installation is genuinely their main trade, and any listing flagged as permanently closed is removed automatically. Businesses marked Trust Verified have gone further, passing our full verification covering trade qualifications and accreditations, public liability insurance, trading history, customer review history and registered company information; see our How We Verify page for the complete list. Other businesses here haven't been independently verified by us, and being included isn't an endorsement. Do your own checks before hiring anyone.
Recommended and Featured listings are paid placements, so a business's fee affects whether and where it appears. Every other listing is ranked on rating and review count from third-party business listings. How we rank & verify →
UPVC Repair Solutions Ltd works as a window installer in Worthing, focusing on repairs to frames, hinges and locking mechanisms alongside new installations. The company has built a strong local reputation, reflected in a five star rating from 69 reviews. Its remit covers both fixing existing UPVC units and fitting replacements for homes across the BN13 area.
A clean run of five out of five reviews sets Safe Home Windows Sussex Ltd apart among Worthing window installers. The company fits and replaces windows for homes across the town, working directly with residents rather than through wider building projects. Details on current work are available via its website.
Double glazing installation is the core specialism at Steve Franklin & Sons Co Ltd, a family firm serving Worthing and the surrounding area. The business covers windows and associated glazing work for residential properties, with a postcode focus across BN44 and nearby. Franklin's website gives a direct route to enquiries for homeowners weighing up replacement options.
Conservatory design, orangery construction, and EPDM roofing sit alongside double glazing and door installations in Warmview Windows' offer, making the Worthing firm a single point of contact for both glazing and external roofing work. The company holds a 4.2 Google rating across its reviews. BN12 4RH places it well for the west Worthing area.
Transparency notice: Recommended and Featured listings are paid placements, so a business's fee affects whether and where it appears. All other listings are ranked by a combined score drawn from ratings and review counts published on third-party business listings, plus basic completeness signals such as a working website and phone. A Trust Verified badge means we have independently checked that business's documents; businesses without it have not been independently verified by us. How we verify →
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How much does a window installers cost in Worthing?
For a standard uPVC window in a semi-detached house, expect somewhere between £350 and £600 per window supplied and fitted, depending on size and whether it's a straightforward swap or needs new lintels or brickwork. A full house re-glaze on a three-bedroom property in areas like Salvington or East Worthing often lands between £5,000 and £9,000. Timber sash windows, common on the older terraces near the seafront, cost more, sometimes £800 to £1,500 each, because of the joinery involved. Getting two or three quotes is normal practice and helps you see whether a price is reasonable for your particular property.
Do I need planning permission to replace windows in Worthing?
Most straightforward window replacements fall under permitted development and don't need planning permission, as long as the new windows are similar in style to the old ones. It's a different story if your property is listed or sits in a conservation area, and Worthing has a few of these around the town centre and seafront. In those cases you may need conservation area consent or listed building consent, so it's worth checking with Adur & Worthing Council's planning department before any work starts.
How long does window installation take?
A single window can usually be fitted in half a day to a full day, including removing the old frame and making good the plaster or brickwork around it. A full house of eight to ten windows typically takes two to three days with a two-person team. Bay windows or anything needing structural work, like a new lintel, will add extra time. Ask your installer for a written schedule so you know what to expect, especially if you've got young children or pets at home during the work.
What's the difference between FENSA and CERTASS registration?
Both are competent person schemes that let installers self-certify their work meets building regulations, so you don't need a separate council inspection. FENSA is the older and more widely recognised scheme, while CERTASS covers similar ground and is used by plenty of smaller, local installers. Either is fine, but make sure whoever you hire is registered with one of them and that you receive a certificate after the job, since you'll need it if you sell the house later.
Should I choose uPVC, timber or aluminium windows?
uPVC is the most common choice for Worthing homes because it's low maintenance and cheaper, typically £350 to £600 per window. Timber suits period properties, especially the Edwardian and Victorian terraces around Broadwater and Selden, but needs repainting every few years and costs more upfront. Aluminium frames are slimmer and increasingly popular for modern extensions or coastal properties, since they resist salt corrosion well, though they sit at a similar or slightly higher price point than uPVC.
How do I choose between window installers in Worthing?
Start by checking their FENSA or CERTASS registration number directly on the relevant scheme's website, rather than just taking their word for it. Ask to see photos of recent local jobs, ideally on properties similar to yours, and ask for two or three references you can actually call. Confirm they hold public liability insurance and ask for the certificate. Read through recent customer reviews yourself rather than relying solely on a star rating, and always get a written quote that breaks down materials, labour and disposal costs before you sign anything.
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