Aluminium vs Plastic Guttering: Which Is Best?

Guttering can come in all shapes, sizes and materials, with aluminium and plastic (uPVC) guttering being two of the most commonly specified rainwater drainage materials. There are differences between the two types of materials and how they perform their guttering tasks. So, it begs the question: aluminium vs plastic guttering, which is the best?

One way to look at the difference between the two is that plastic guttering offers a low-cost solution for domestic properties, while aluminium guttering provides greater durability, longevity, aesthetic appeal and sustainability. This makes aluminium a popular choice for commercial, public sector and premium residential projects. However, in some instances, deciding between the two can be a little more complex than simply picking based on the type of construction. 

Click here, call 0113 279 5854 or email info@rainguard.co.uk to contact us to talk about guttering.

Is Aluminium or Plastic Guttering Better?

The answer to this question depends on the key reason behind the guttering you need. The simplest way to look at it is that for long-term performance, aluminium guttering is generally considered the superior solution. While plastic guttering has a lower upfront cost, aluminium typically offers:

• Longer lifespan
• Greater strength
• Better appearance
• Improved sustainability
• Lower lifetime replacement costs

However, if you need something in place as soon as possible but have a tight budget, then plastic guttering remains a suitable option. Later on, when you’re a little more flexible, you can always upgrade to aluminium. 

Aluminium vs Plastic Guttering Comparison

Feature	Aluminium Guttering	Plastic Guttering (uPVC)
Lifespan	40 to 60+ years	10 to 25 years
Corrosion Resistance	Excellent	Good
UV Resistance	Excellent	Can degrade over time
Appearance	Premium architectural finish	Basic domestic appearance
Colour Options	Extensive powder coating options	Limited colours
Sustainability	100% recyclable	Limited recyclability
Structural Strength	High	Moderate
Maintenance	Low	Moderate
Whole-Life Cost	Lower long term	Higher long term
Initial Cost	Higher	Lower

What Is Aluminium Guttering?

Aluminium guttering is manufactured from lightweight, high-strength aluminium and is typically finished with a durable powder coating for long-lasting protection and colour retention.

It is the go-to material for commercial, industrial and residential buildings due to its durability, clean appearance and excellent weather resistance. Also, because you can get it in a variety of different profiles, it can work with both contemporary and traditional architecture while providing reliable rainwater management.

What Is Plastic Guttering?

Plastic guttering is usually manufactured from uPVC and is one of the most common rainwater systems found on domestic properties. There’s nothing wrong with going for plastic guttering if money is a little tight. 

Please note that the lifespan is much shorter – see the chart above – so be prepared to replace it if you notice it is falling short of doing its job. 

Advantages and Disadvantages of Aluminium Guttering

Let’s have a look at the advantages first, so you know the benefits: 

Longer Lifespan

Aluminium guttering typically lasts between 40 and 60 years or more when correctly installed and maintained, making it an excellent long-term investment.

Better Appearance

Available in a wide range of powder-coated colours and architectural finishes, aluminium complements modern developments, heritage buildings and commercial projects alike.

Greater Strength

Excellent structural strength, making it suitable for larger buildings and areas exposed to challenging weather conditions – also used in smaller buildings. 

Sustainable Material

Aluminium is 100% recyclable, making it a great choice for those who want to make the correct, environmentally-friendly choice. 

Lower Lifetime Cost

Although the initial investment is higher, fewer repairs and replacement cycles often result in a lower whole-life cost compared to plastic systems. 

And here are the disadvantages: 

Higher Upfront Cost

Aluminium guttering requires a larger initial investment than plastic alternatives, so make sure to put aside the right amount of money to secure your aluminium guttering system. 

Specialist Specification

For larger commercial or architectural projects, aluminium systems may require more detailed specification and planning to ensure the correct profiles and capacities are selected.

Advantages and Disadvantages of Plastic Guttering

Lower Initial Cost

Plastic guttering is generally less expensive to purchase, making it attractive for projects with tight budgets.

Easy Installation

Lightweight components make uPVC guttering straightforward to transport, handle and install.

Widely Available

Plastic guttering is readily available in standard sizes from most builders’ merchants and DIY retailers.

And the disadvantages: 

Shorter Lifespan

Plastic guttering generally lasts between 10 and 25 years and is more susceptible to ageing than aluminium.

UV Degradation

Prolonged exposure to sunlight can cause uPVC to fade, become brittle and crack over time.

Less Suitable for Premium Buildings

While functional, plastic guttering may not provide the high-quality appearance expected on commercial developments or premium residential properties.

More Frequent Replacement

Shorter service life means replacement is often required sooner, increasing maintenance requirements and whole-life costs.

Aluminium vs Plastic Guttering: Head-to-Head Comparisons

Which Lasts Longer?

Winner: Aluminium

Aluminium can last 2-4 times longer than plastic guttering, which is a very important factor. 

Which Looks Better?

Winner: Aluminium

Powder-coated finishes, clean lines and extensive colour options make aluminium the preferred choice for architectural projects.

Which Costs Less Initially?

Winner: Plastic

Plastic guttering costs around £5-£15 per metre, which is quite a bit less than the £22 to £35+ per metre for aluminium. 

Which Offers Better Value Long Term?

Winner: Aluminium

Its durability and reduced replacement frequency result in a lower whole-life cost.

Which Is More Sustainable?

Winner: Aluminium

Aluminium is fully recyclable and requires fewer replacement cycles throughout its lifespan.

Which Requires Less Maintenance?

Winner: Aluminium

Its corrosion resistance and durable finish help minimise ongoing maintenance.

Which Is Better for Commercial Buildings?

Winner: Aluminium

Its strength, longevity and professional appearance make aluminium the preferred material for commercial, public sector and high-end residential developments.

When Should You Choose Aluminium Guttering?

Choose aluminium guttering if you want:

• Long service life
• Premium appearance
• Commercial-grade performance
• Sustainable materials
• Lower lifetime costs
• Architectural flexibility
• Excellent weather resistance
• Minimal maintenance

When Might Plastic Guttering Be Suitable?

Plastic guttering may be suitable where:

• Budget is the primary concern
• The property is domestic
• Short-term ownership is expected
• Appearance is less critical
• Initial purchase cost takes priority over long-term performance

Our Recommendation

At Yeoman Rainguard, our recommendation is quite simple: if you have the budget for it, then absolutely go for the aluminium guttering option. You will not regret it! 

For projects where longevity, appearance and long-term value are important, aluminium guttering is typically the preferred choice. 

Ready to get started?

• Request a quotation
• Download technical specifications
• Speak to our team
• View our aluminium guttering systems

Click here, call 0113 279 5854 or email info@rainguard.co.uk to contact us to talk about guttering.

Frequently Asked Questions

Is aluminium guttering worth the extra cost?

Yes. While aluminium has a higher upfront cost than plastic, its longer lifespan, lower maintenance requirements and reduced replacement frequency often make it the more cost-effective option over the lifetime of a building.

How long does aluminium guttering last?

High-quality aluminium guttering typically lasts between 40 and 60 years or more when professionally installed and properly maintained.

Does aluminium guttering rust?

No. Unlike steel, aluminium does not rust. It naturally forms a protective oxide layer, and powder-coated finishes provide additional protection against corrosion and weathering.