Designed in Sweden, Built for British Winters: The FM Mattsson Anti-Freeze Outside Tap
Introduction: A Small Fitting with Big Benefits
Every year, British housebuilders face the same seasonal headache: outdoor taps that freeze, split, leak and fail during the colder months. It leads to call-backs, repair costs, insurance issues and unnecessary headaches. But what if one simple change could eliminate that entire risk?
Enter the FM Mattsson 42820050 Hot & Cold Anti-Freeze Outside Tap. Designed and engineered in Sweden—where winters are longer, colder, and harsher than most of the UK—this clever piece of kit delivers something UK developers have needed for decades: an outside tap that just works, whatever the weather.
In this blog, we’ll break down exactly why this product is winning attention from specifiers, developers, and builders across the UK. From its freeze-proof credentials to its user-friendly design, it offers something every residential new build should include as standard.
1. A Tap That Knows Cold Weather – Designed in Sweden
Sweden is no stranger to sub-zero temperatures, snowdrifts, and deep frost. That’s why FM Mattsson, Sweden’s leading tap manufacturer, engineered the 42820050 to function perfectly in freezing climates. The result? A tap that is more than ready for the worst a British winter can throw at it.
The unique internal construction allows water to drain from the exposed parts of the tap after each use, significantly reducing the risk of freezing. No need for lagging, wrapping, or isolating the tap. Just fit it, use it, and forget about it.
Key Feature: Self-draining internal design
- Prevents ice build-up in winter
- No maintenance needed
- Eliminates freeze-related failures
2. Hot & Cold Water – Because Builders Know Convenience Matters
The FM Mattsson 42820050 isn’t just freeze-proof. It’s also incredibly versatile,
offering both hot and cold water connections. Whether it’s cleaning down tools, washing the car, rinsing the dog or hosing down patios, homeowners love the convenience.
For developers, it’s a genuine value-add. Homeowners are looking for features that offer both comfort and practicality, and this is a box-ticker.
Key Feature: Dual hot and cold inlets
- Ideal for residential properties
- Improves outdoor usability year-round
- Easily connects to standard plumbing
3. No More Winter Call-Backs or Insurance Claims
Here’s where it really benefits the builder: frozen taps cost money. Not just in 
reputational damage, but in emergency call-outs, warranty claims, and remedial works. Even small leaks from burst pipes can lead to big claims.
By specifying a tap that prevents freezing by design, developers can significantly reduce winter-time defects and the associated cost of call-backs. It’s about futureproofing the property while protecting margins.
Key Feature: Anti-freeze by design, not by accessory
- Cuts defects and call-backs
- Improves NHBC compliance
- Reduces risk of pipe splits or burst fittings
4. Sleek, Scandinavian Design That Looks the Part
Let’s be honest: many outside taps are an eyesore. Not the 42820050. With clean lines, brushed stainless finish, and FM Mattsson’s signature precision, it fits beautifully onto modern or traditional builds.
It’s one of those small details that elevates the overall finish of the property—and your reputation as a builder that doesn’t cut corners.
Key Feature: Scandinavian design quality
- Brushed stainless finish
- Compact and neat on brickwork
- Enhances kerb appeal and buyer satisfaction
5. Easy for Plumbers and Installers
Plumbers like simplicity. This tap fits into standard pipework and requires no 
special skills to install. The hot and cold inlets are clearly marked, and the built-in frost protection means no lagging or insulation is needed.
No complications. No comebacks. No chasing trades to go back.
Key Feature: Installer-friendly
- Straightforward installation
- Standard pipe fittings
- Clear instructions
6. A Product That Adds Value – Without Breaking Budgets
It may sound like a premium product, but the FM Mattsson anti-freeze tap is surprisingly affordable—especially when you factor in the long-term savings. Less risk, less repair, more value.
It also boosts the perceived quality of your build, with buyers appreciating thoughtful touches that improve day-to-day living.
Key Feature: Excellent cost-to-benefit ratio
- Budget-friendly unit cost
- Reduces future maintenance
- Adds resale and homeowner value
7. Built to Last – 100+ Years of Swedish Innovation
FM Mattsson has been designing taps for more than a century. They’re known
for innovation, longevity, and sustainability. This isn’t a generic import; it’s a piece of precision engineering built to last.
With brass internals, corrosion-resistant coatings, and smart Scandinavian know-how, this is a product that will outlive many of the houses it’s installed on.
Key Feature: Durable, engineered quality
- Made in Sweden
- Robust under real-world conditions
- Trusted by professionals across Europe
8. Ideal for New Build Developers, Housing Associations & Retrofit Projects
Whether you’re building a new estate, managing a housing stock retrofit, or upgrading existing properties, the FM Mattsson anti-freeze tap is a flexible choice. It fits seamlessly into most property types and is ideal for:
- Private housing schemes
- Social and affordable housing
- Refurbishment of older stock
- MMC and off-site construction
9. A Smarter Spec Choice for Smarter Homes
Today’s new homes are smarter, better designed, and more efficient. But when it comes to outdoor taps, many still install the cheapest unit available—and pay for it later.
This is a smart product that reflects the way modern homes are built: sustainable, reliable, user-friendly, and low maintenance.
Make it your new standard.
Conclusion: Time to Upgrade the Standard Tap
The humble outside tap has long been overlooked. But not anymore.
With the FM Mattsson 42820050 hot & cold anti-freeze outside tap, you get peace of mind, a better build, fewer call-backs, and happier homeowners.
Designed in Sweden. Built for British winters.
If you’d like to see how this can work in your next development, get in touch for more information or book a quick demo over Microsoft Teams. We’ll show you the benefits and answer any technical questions.
Contact us at:
📞 Tel: 01628 529024
📧 Email: info@challisms.com
Or just drop us a message here on LinkedIn. We’re always happy to help.
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