Top 6 uPVC Window Manufacturers in the UK

I once had a supplier go radio silent after missing a major window delivery for a school refurb. We had crews waiting, clients calling, and no windows in sight.

That mess taught me to dig deeper before choosing a uPVC manufacturer.

Since then, I’ve worked closely with UK-based window suppliers, tracking lead times, quality, service, and how they handle pressure. This list isn’t just names on a screen. It’s built from experience, site visits, and real conversations.

In this article, you’ll find six of the UK’s most reliable uPVC window manufacturers. You’ll learn what each one does best, who they’re ideal for, and what to expect when working with them.

If you’re sourcing for residential developments, hospitality builds, or light commercial projects, this guide has you covered.

Alright, let’s dive in!

Quick Comparison Chart

Here’s a comprehensive comparison table of the Top 7 uPVC Window Manufacturers in the UK. This gives you a high-level view of how each brand stacks up across specialization, market focus, and customer support.

Manufacturer	Product Focus	Market Reach	Key Innovations	Certs & Awards	Service Model	Unique Strength	Ideal For
Anglian	Full-range uPVC + conservatories	UK-wide	Triple glazing, conservation	BBA, BFRC, FENSA, SBD	In-house install, full service	Largest UK player by scale	National retail projects
Eurocell	Profiles, windows, cladding	UK (200+ branches)	Modus system, recycling loop	BSI, ISO 9001/14001, BBA	Click & collect, delivery	Top recycler, vertically integrated	Trade, large-scale sourcing
Safestyle	Budget uPVC windows/doors	UK (under Anglian)	Cost-effective glazing	Legacy FENSA, BSI, G-Award	Price match, basic install	Value-focused brand legacy	Budget-conscious builds
Everest	Premium uPVC, security-focused	UK (Anglian premium)	Timber-look, dual colours	Historic SBD, TrustMark	Premium quoting, online tools	Heritage appeal with upscale styling	High-end home builds
CR Smith	uPVC + Lorimer secondary glazing	Scotland only	LorimerFit, flat-friendly	FCA, Which? (2020)	In-house fit, financing	Climate-ready and region-trusted	Scottish residential jobs
Britelite	A-rated windows, roofing	South East England	Intrusion guarantee, R9 sash	FENSA, BSI, Which?	Full install, flexible finance	Reliable regional performance	SE England projects
Masterframe	Vertical sash only	UK-wide (installer-led)	Timberweld joints, Bygone line	SBD, PAS24, BBA, GGF	Installer support, spec tools	Top sash realism for heritage jobs	Conservation or heritage builds

1. Anglian Home Improvements

I’ve worked with businesses that made the mistake of choosing a window supplier based on flashy marketing. But Anglian isn’t that kind of company, their track record speaks louder than their slogans.

Founded in 1966 by George Williams in Norwich, Anglian started small and grew through smart moves. By the 1970s, they jumped early into PVCu, setting themselves apart as innovators, not followers.

But the real game-changer came in 2023 and 2024. By acquiring Safestyle UK and Everest, Anglian didn’t just expand, they swallowed their competition. That move turned them into the single largest national installer in the UK.

They now operate under ASHI Group Ltd, and to put it plainly, they’re the heavyweight of the UK’s home improvement sector. The challenge now? Managing three brands, three legacies, and a mountain of customer expectations.

• Address: Liberator Road, Norwich, NR6 6EU, England
• Website:www.anglianhome.co.uk

Key uPVC Products and Innovations

• Window Variety That Covers It All: From casement and sash to tilt & turn, they offer every core style in uPVC, and even handle special shapes for listed buildings and conservation areas.
• A++ Triple Glazing: If you’re looking for performance, their triple glazing lineup is among the most energy-efficient I’ve seen in the UK market.
• Complete Door Range: They’ve got front doors, patio sliders, French doors, in uPVC, aluminium, and timber too.
• Extras Beyond Windows: This is where they become a one-stop solution. Conservatories, solid roof extensions, garage doors, roof trim, ideal if you’re managing full exterior packages.

Services and Customer Support

• Design to Delivery Model: You start with a design consultation, and they take it from there, manufacturing, installing, and supporting the full journey.
• Long-Term Guarantees: Their 10-year standard warranty is solid, but the 15-year coverage on gas-filled units shows real confidence in the product.
• Warranty at Scale: With over 400,000 orders under guarantee (thanks to the Safestyle and Everest takeovers), their service team has a heavy load, but plenty of experience handling it.
• Flexible Finance Options: For commercial clients managing budgets, their finance offerings help ease the upfront burden while keeping projects moving.

Certifications, Accreditations, and Awards

• Security You Can Prove: Secured by Design approval adds peace of mind, especially for commercial or public-facing properties.
• Built in Britain: The “Made in Britain” mark isn’t just a label, it means faster lead times and tighter quality control.
• Trusted by the Trade: BBA certification, FENSA registration, GGF and TrustMark accreditations, it’s a full house of recognitions that matter in tenders.
• Recognition and Reputation: Awards from Feefo and Trustpilot reviews reinforce the trust people place in them. They’ve even dipped into design awards, which tells me they’re thinking long-term about their brand image.

Takeaway

Anglian offers unmatched reach, product variety, and service infrastructure. Their recent acquisitions give them serious leverage no other UK window company can match. But absorbing two legacy brands means big operational challenges, and the next year will reveal whether their support systems can keep pace with their growth.

2. Eurocell PLC

One thing I’ve learned working with suppliers is that control matters. Especially when timelines, margins, and quality are all on the line. Eurocell doesn’t leave anything to chance, and that’s what makes them stand out.

Founded in 1974, Eurocell has grown into one of the UK’s most complete uPVC operations. They don’t just make profiles. They manufacture them, distribute them through their own national branch network, and recycle the materials at scale.

That vertical setup gives them a serious edge. Every piece of the process, from raw material to final product, happens under their roof. What also makes them unique is their dual market approach.

Their 200 plus branches serve both tradespeople and homeowners, acting as depots and showrooms in one. That lets them reach deep into the market from both ends.

• Address: Eurocell Head Office and Distribution Centre, High View Road, South Normanton, Alfreton, Derbyshire, DE55 2DT, England
• Website:www.eurocell.co.uk

Key uPVC Products and Innovations

• High-Performance Window Systems: Their “Modus” profile is a real standout. It can hit U-values as low as 0.7W/m²K, which is Passivhaus-level insulation in a standard uPVC frame. Not something you see every day.
• Extensive Product Range: Besides windows, they cover everything from uPVC doors to fascias, soffits, decking, fencing, and even cladding. If you’re looking for a single-source supplier for exterior building plastics, they’ve got it covered.
• Recycling-Backed Products: Many of their systems are made with recycled uPVC, and not just a token amount. We’re talking millions of old window frames reprocessed each year. That’s genuine circular production, not greenwashing.
• Logik System: Another well-regarded window system. Logik offers strong thermal performance and a modern aesthetic. It’s often the go-to for fabricators looking for reliable, adaptable profiles.

Services and Customer Support

• Nationwide Branch Network: Their branch footprint is a big win for trade partners. Whether you’re managing multiple sites or just need reliable pickup nearby, it’s a major convenience.
• Click-and-Collect and Delivery: Fast order turnaround with flexible logistics. Great for busy teams who can’t afford hold-ups.
• Technical Hub Online: This is a goldmine for specifiers and project managers. CAD drawings, datasheets, install guides, you name it. All in one place and easy to navigate.
• Project Support for Trade and Retail: They don’t just sell boxes. They offer quotes, advice, and support for builders, fabricators, and even homeowners doing larger upgrades.

Certifications, Accreditations, and Awards

• BSI Kitemark and BBA Certified: Their products are tested and proven. If you’re working on spec-driven projects, these certifications help tick compliance boxes quickly.
• ISO-Certified Operations: Their quality, environmental, and health and safety systems meet global ISO standards. These include ISO 9001, 14001, and 45001. That means their processes are just as solid as their products.
• BES 6001 for Responsible Sourcing: This matters more than ever in today’s supply chain-conscious world. It tells clients you’re sourcing from an ethical, traceable provider.
• Security Standards: Their window systems are fully tested to meet current security benchmarks. This makes them viable for high-spec or safety-focused installations.

Takeaway

Eurocell is a one-stop powerhouse with end-to-end control and a product catalog that covers everything from frames to finish. Their recycling capability also gives them a unique green edge that few can rival. But with such a large branch network and broad focus, personal service might vary from one location to the next. That is something to be aware of when consistency matters most.

3. Safestyle UK

I’ve seen businesses build powerful brands, only to stumble when the business model can’t keep up. Safestyle UK is one of the clearest examples of this kind of rise and fall.

Founded in 1992 and once headquartered in Bradford, Safestyle became a giant in the UK window and door market. Its bold marketing campaigns, especially the “buy one, get one free” slogan, made it a household name nationwide.

Over the years, Safestyle earned both praise and criticism. It picked up awards for customer care and marketing, but also drew attention from regulators due to its sales tactics.

Today, the Safestyle brand survives as a marketing front under the Anglian group. Its legacy still attracts attention, but its future depends entirely on how Anglian uses the name.

• Address: Liberator Road, Norwich, NR6 6EU, England
• Website:www.safestyle-windows.co.uk

Key uPVC Products and Innovations

• Classic Window Styles: The Safestyle brand continues to showcase a full selection of uPVC windows. These include casement, tilt and turn, sash, and flush casement designs that were once staples of the original company’s catalog.
• uPVC and Composite Doors: Safestyle historically offered a large variety of door options, from standard back doors to modern composite front doors. That selection still features prominently on their site.
• Roofline Products: Fascias, soffits, and guttering were also part of Safestyle’s original lineup. While production is now part of Anglian’s infrastructure, the product categories remain visible under the Safestyle brand.
• Brand Continuity: While the manufacturing has changed hands, the product variety appears aimed at maintaining the brand’s appeal to price-sensitive and value-focused customers.

Services and Customer Support

• Price Match Promise: Safestyle still highlights one of its oldest selling points, offering to match competitor pricing on similar installations.
• Legacy Guarantees: For work done before the 2023 collapse, customers must rely on insurance-backed guarantees managed by Installsure. These are separate from any warranties now offered under Anglian’s ownership.
• New Warranty Structure: Any installations handled after the acquisition are backed by Anglian’s guarantees. These may differ in terms and conditions from the original Safestyle protections.
• Sales and Support Channels: The brand’s customer service phone lines and website remain active, now funnelling inquiries into the wider Anglian system.

Certifications, Accreditations, and Awards

• Historical Certifications: Before entering administration, Safestyle held major certifications like ISO 9001, BSI Kitemarks, and memberships with FENSA and the GGF. These were tied to the old legal entity and did not carry over after the acquisition.
• Certification Controversy: Anglian faced criticism for displaying the old certifications on the new Safestyle site, despite the fact that the restructured brand had not requalified for them independently.
• Award Recognition: At its peak, Safestyle earned multiple G-Awards, including those for Best Customer Care and Promotional Campaign. These awards reflect the brand’s former impact, even if the structure behind it has changed.

Takeaway

Safestyle UK remains a powerful brand name with strong consumer recognition and a long marketing legacy. The product variety and affordability message still resonate with many buyers. But the original company is gone. What remains is a sales arm under Anglian, which means the real difference today is mostly in name, not in service or operations.

4. Everest

I’ve worked with businesses that had to claw their way back from customer skepticism, and Everest is a textbook case of that uphill battle. Originally founded in the mid-1960s as Home Insulation Ltd, Everest became a household name in the UK home improvement industry. Its famous slogan, “Fit the best: Everest!” wasn’t just clever branding.

For a long time, it genuinely reflected premium products and service.

Everest also led the way on innovation. They were the first to bring sliding patio doors to the UK and were early adopters of triple glazing for mainstream use back in 2014.

But their journey has been rocky. After two separate administrations in 2020 and 2024, the Everest brand is now part of Anglian Home Improvements. It lives on in name and reputation, but not as the same standalone company.

• Address: Liberator Road, Norwich, NR6 6EU, England
• Website:www.everest.co.uk

Key uPVC Products and Innovations

• Premium Window Styles: Everest’s uPVC window range still includes flush casement, sash, bay, and standard casement windows. Their woodgrain finishes and dual-colour options really stand out if design flexibility matters to your project.
• High-Security Features: Security has always been part of the Everest promise. Their windows use multi-point locking systems that meet British Security Standards and are backed by the police initiative Secured by Design.
• Double and Triple Glazing: Across their product range, Everest offers high-spec glazing options. This gives specifiers the chance to meet energy performance goals without sacrificing appearance.
• Attention to Detail: Their historical focus on finishes and fit helped set Everest apart, especially in higher-end residential and showcase projects. The product styling reflects that legacy.

Services and Customer Support

• Bespoke Design to Install Process: Everest has always pitched itself as a full-service brand. From initial consultation to final fitting, the focus is on tailored service and smooth project flow.
• Transparent Pricing Model: One thing that differentiated Everest in the past was their pricing approach. They published online estimates, offering a level of clarity that most window installers avoided.
• Guarantee Confusion: Everest once led the market with long and even lifetime guarantees. But after the two administrations, those promises have become complicated. Only valid IBGs from previous installs are still honored.
• New Backing, New Warranties: Any new Everest-branded installation now falls under Anglian’s warranty model. This change is key to restoring confidence moving forward.

Certifications, Accreditations, and Awards

• Historic Accreditations: The original Everest entity held certifications from BSI, FENSA, GGF, and TrustMark. They also carried the Made in Britain marque and BBA approvals across several product categories.
• Award-Winning Brand: Everest picked up recognition for its marketing and digital tools, including an Interactive Media Award in 2013. It was also a finalist in the British Excellence in Sales and Marketing Awards in 2015.
• Certifications Reset: It is important to note that certifications did not automatically transfer to the new Anglian-controlled Everest brand. Any new compliance status must be earned under the new company structure.

Takeaway

Everest still carries the weight of a premium brand, and its products reflect that heritage of high performance and sharp design. Its reputation for security and customisation keeps it attractive at the top end of the market. But years of financial instability and broken warranty promises have left a scar. The real test now is whether the Anglian group can rebuild the trust that Everest once owned.

5. Britelite Windows

Some brands quietly build trust one installation at a time. Britelite is one of those companies, and I’ve seen how that kind of local consistency can be more powerful than national advertising.

Founded in 1970 by John Baxter and Arthur Clacy, Britelite has spent more than 50 years focused on one region—the South East of England. They’ve made reliability their brand, serving customers in Kent, Sussex, Essex, Surrey, and London with a steady hand and clear values.

Their core philosophy hasn’t changed: offer the best quality at a fair price. That principle has kept them strong even as flashier national competitors have come and gone.

Today, Britelite stands out not for expansion, but for stability. With physical showrooms and long-tenured staff, they’ve turned regional focus into a long-term advantage.

• Address: Britelite House, Bircholt Road, Maidstone, Kent, ME15 9XY, England
• Website:www.britelitewindows.co.uk

Key uPVC Products and Innovations

• Window Styles for Every Setting: Britelite’s core window range includes both modern casement and classic sliding sash styles. They also offer Residence 9, a premium timber-look system perfect for heritage projects.
• Secondary Glazing: For homes where the original windows must remain, Britelite offers a discrete secondary glazing solution to improve insulation and noise control.
• High-Efficiency Glazing: Their windows come with A-rated double glazing and A++ triple glazing. Each unit uses Low-E glass and multi-chambered profiles to trap warmth and reduce noise.
• Full Home Improvement Range: Beyond windows, Britelite also supplies and installs a complete range of uPVC doors, conservatories, and flat roofing systems, rounding out their residential offering.

Services and Customer Support

• Design to Installation Coverage: Every project begins with a consultation and ends with a professionally installed product. Customers can book online or opt for virtual video appointments.
• Final Inspection by Experts: After installation, a senior fitter conducts a final review. They walk homeowners through care tips and check everything is up to Britelite’s standard.
• Transferable 10-Year Guarantee: All products come with a 10-year insurance-backed guarantee that can be transferred if the property is sold.
• Anti-Intrusion Guarantee: For added peace of mind, Britelite offers a £1,000 compensation guarantee if their triple-glazed windows are breached during a break-in.
• Flexible Finance Options: Britelite offers accessible payment plans to help spread the cost of larger improvement projects.

Certifications, Accreditations, and Awards

• Which? Trusted Trader Since 2014: Britelite has held this consumer trust badge for over a decade, a strong signal of ongoing quality.
• FENSA Registered and BSI Kitemarked: These core certifications ensure every installation meets UK standards for energy efficiency and workmanship.
• TrustMark Endorsed: Government-backed approval through TrustMark reinforces Britelite’s standing as a dependable and vetted installer.
• Widespread Memberships: They are also part of the Glass and Glazing Federation, Chartered Trading Standards Institute, BFRC, and Conservatory Association. This extensive list reflects serious professionalism and accountability.

Takeaway

Britelite has turned regional focus into long-term strength. Their dedication to customer service, product quality, and physical presence sets them apart in the crowded South East market. But their influence is strictly regional. If you’re outside their coverage area, this trusted name simply isn’t an option.

6. Masterframe Windows

Some companies grow by offering a bit of everything. Others go deep into one niche and become unbeatable at it. Masterframe is the second kind, and that’s exactly what makes them such a standout.

Founded in 1984 and based in Witham, Essex, Masterframe has spent over 30 years perfecting just one product: the uPVC sliding sash window. They don’t make casements, doors, or conservatories. Just sash windows, done exceptionally well.

This focus has allowed them to lead in heritage and conservation markets, where detail and authenticity matter most. They’ve gone beyond replicating timber aesthetics to developing proprietary technology that no one else can offer.

They supply both trade and commercial clients, while their premium retail line, the Bygone Collection, is only available through specially trained Master Installers. That gives them complete control over quality, both in production and installation.

• Address: 4 Crittall Road, Witham, Essex, CM8 3DR, England
• Website:www.masterframe.co.uk

Key uPVC Products and Innovations

• Sole Focus on Sash Windows: Masterframe makes only one product: uPVC vertical sliding sash windows. Their trade line includes the Vintage, Heritage, and Authentic collections, while their premium retail brand, Bygone, offers Symphony, Harmony, and Melody tiers.
• Timberweld Technology: This is the real game-changer. Timberweld® creates sealed, butt-jointed corners on both sides of the sash, mimicking traditional timber joinery. No diagonal weld lines. No compromises. Only Masterframe has the license to use this technology in sash windows.
• Authentic Heritage Features: Deep bottom rails, slim profiles, and period-correct detailing make their products suitable for listed buildings and conservation areas. They’re not just passable substitutes, they’re purpose-built for authenticity.
• Customisation and Design Tools: Through their online window designer, customers and specifiers can configure, visualise, and price sash windows that meet project needs precisely.

Services and Customer Support

• Support for Professionals: Masterframe’s service model is built around trade and commercial partners. They offer architectural guides, technical support, and planning compliance tools including a downloadable Conservation Guide.
• Approved Installer Network: Their Bygone Collection is only available through Master Installers who have been vetted and trained. This ensures that high-end products are paired with high-end workmanship.
• Online Tools and Showroom Access: A virtual showroom and interactive design tools help customers visualise products before purchase, streamlining the buying journey for both homeowners and professionals.
• Warranty Backing: While the exact length isn’t listed, their full BBA approval suggests their products meet high durability standards and long-term performance expectations.

Certifications, Accreditations, and Awards

• BBA Approved: Products have passed rigorous testing by the British Board of Agrément, which reflects long-term durability and compliance with UK building regulations.
• Secured by Design Certified: Their windows meet police-preferred security standards, providing added peace of mind for residential projects.
• PAS24 Tested: This security benchmark ensures that the windows meet modern anti-intrusion requirements.
• Trade and Manufacturing Awards: Masterframe has earned National Fenestration Awards including Fabricator of the Year, Timber Alternative Company of the Year, and New Product of the Year for Timberweld®.
• Made in Britain and GGF Membership: These affiliations reflect transparency in sourcing, commitment to British manufacturing, and active participation in industry standards.

Takeaway

Masterframe has built a commanding presence by going all-in on one product. Their expertise, heritage focus, and patented Timberweld® joinery put them in a class of their own. However, their specialised focus means they aren’t a fit for every window project. If you need anything beyond sash windows, you’ll need to look elsewhere.

Looking for a Window Manufacturer Outside the UK?

If UK options feel limited or pricing isn’t working, it might be time to look abroad. China offers reliable, customizable, and cost-effective solutions, especially for project buyers.

Vallisco is a China-based manufacturer and supplier of doors and windows. They serve villa owners, hotel teams, and B&B projects across Southeast Asia and Europe, offering complete, project-ready solutions.

As a subsidiary of Qeeka Home, The team bring 24 years of factory experience and now operate independently to focus solely on doors and windows.

Why Vallisco?

• Full-house window and door systems
• Deep customization: color, size, acoustic, thermal
• Strong export record in SEA and Europe
• Accepts multi-unit orders from house owners

Explore more to see how Vallisco can support your next project with flexible, high-quality door solutions tailored to your build.

Conclusion

I never forgot that missed delivery. It pushed me to find better, and now you don’t have to start from scratch.

This article is your quick-access guide to top uPVC suppliers in the UK. We’ve covered who’s reliable, who customizes well, and who suits which kind of job.

Whether it’s your first order or your fiftieth, this list can save time, money, and stress.

But here’s a thought, why not explore China too? Vallisco offers project-ready uPVC windows with deep customization and global-ready service.

The right partner makes all the difference. Contact us today!