ThePipingMart Blog Metals Compression Fittings vs Sweating Copper – What’s the Difference

Compression Fittings vs Sweating Copper – What’s the Difference

Compression Fittings vs Sweating Copper

Finding the right plumbing system for your home or building can be tough. Nowadays, many options are available in the market, and choosing the right one for your needs can be overwhelming. Two popular choices are compression fittings and sweating copper. But which one is better? In this blog post, we will dive into the differences and help you decide which would be best for your plumbing needs.

What is Compression Fittings?

Compression fittings are a type of fitting that is used to connect two pieces of pipe. The fitting consists of a nut and a sleeve that are tightened together to create a seal. Compression fittings are easy to install and do not require soldering, making them a popular choice for do-it-yourselfers.

What is Sweating Copper?

Sweating copper is a process that is used to connect two pieces of copper pipe. The process involves heating the ends of the copper pipes and then soldering them together. Sweating copper is more difficult than using compression fittings, but it results in a stronger connection.

Difference Between Compression Fittings and Sweating Copper

Advantages of Compression Fittings

One advantage of compression fittings is that they are easy to install. Another advantage is that they do not require soldering, which can be difficult for some people. Additionally, compression fittings create a stronger connection than sweating copper.

Advantages of Sweating Copper

One advantage of sweating copper is that it creates a stronger connection than compression fittings. Another advantage is that it can be used on pipes that are not perfectly round, such as those made from PEX or PVC. Additionally, sweating copper can help to prevent leaks.

Disadvantages of Compression Fittings

One disadvantage of compression fittings is that they are less strong than sweating copper. Another disadvantage is that they can be difficult to remove if they need to be repaired or replaced. Additionally, compression fittings can sometimes leak if they are not installed correctly.


Compression fittings and sweating copper are two popular options for plumbing systems. When deciding which one to use, you must consider your skill level, job type, and personal preferences. Compression fittings are easy to install, reusable, and can be used in areas where sweating copper is not recommended, while sweating copper is more labour-intensive but produces a more professional look. Both methods have fairly similar pricing, but the labour cost of sweating copper can be a significant factor. Regardless of your chosen method, ensuring the job is done well is important to avoid future plumbing problems.

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