Artisans Of Sound | Sonic Sculptors

Online Mastering Since 2005



Since its opening in 2005, we have served both chart-toppers and independent musicians.

We were one of the first mastering studios in the UK to offer “online mastering” services. Over the last 15 years, we have been continually tweaking and refining our online mastering workflow achieving five stars feedback from both Google and Facebook and by providing services such as iNTouch Mastering.

Please bear in mind that we do not offer attended sessions.

Although we are blessed enough to own some of the finest equipment on the market, what we really pride ourselves on, is the attention to detail we give to all projects (big or small). While you work with us, we will always try to make you feel reassured that your music is in safe hands by establishing excellent communication channels (and yes, you can always reach us at any time!)

Swift Mastering new suite 2021

During these surreal times that we are currently living in, I really hope that you and your family are safe. This is not an easy time for any of us and everyone will have to adjust to a different way of living.
Much like yourselves, here at Swift Mastering we are closely following the impact that the coronavirus (COVID-19) is having on our local communities, small businesses and in particular the music industry. It is very sad to hear how this virus outbreak is threatening the livelihood of many of our fellow colleagues and perhaps it pushes us to reflect on how fragile our society really is. Difficult times lie ahead of us and there will be tough choices to be made.
But…. we all need to do our bit in order to contain and defeat this virus, so we have decided to shut our London studio until further notice. That means that all our music production and mixing work in our London studio has now been been put to an immediate halt.
However, a silver lining…as many of you will know already, since 2019 we have moved all our mastering operations to our new mastering suite up in the North Yorkshire countryside. For the past 18 months we have worked solely on an online basis. Therefore, even during these trying times,

we want to reassure all our customers that we are be able to keep all our online mastering (and mixing) operations 100% undisrupted.

Stay safe, all the best.

Alex Balzama

What We do

We Worked For

Why Choosing Us?

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Satisfaction Guaranteed

Over the last 10 years we have developed a unique workflow which always keep us in contact with the client. COMMUNICATION IS KEY! In our experience, once things are explained and agreed by both parties, having them done is a piece of cake. There are no problems in this business, only solutions!


Our Skills

Mastering 99%
Mixing 99%
Coffee 100%

Our Skills

Mastering 99%
Mixing 90%
Pole Dancing 15%
Coffee 100%

Some Facts About Us

  • Over 15 years experience
  • Beautiful Equipment
  • Real and solid commercial credits
  • Apple MFiT Certified Studio
  • Best Rates in the UK
  • We are nice people!
  • We won’t hit you with nasty hidden charges…ever!


We are musicians ourselves. We understand musicians better than most because we have been there. We understand the struggle and the passion, the frustration and the hype of doing what you doing. This is why we always try to help and walk that extra mile in order to get the job done. Our aim is to help you unlocking the full potential of your music.

We Have Very Happy Clients!


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If mastering is a black art then Alex is for sure Valdemort!

David McEwan, Music Producer | Plan B, Natasha Badingfield, Garou

Man, not sure what you have done on my record, but every time it gets plaeyd in a club the bass literally shakes the whole place down! Awesome!

Lethal Bizzle, Musician

Thanks Alex for the great job. The album sounds amazing. Really pleased with the results!

Matt Johnson (Jamiroquai), Musician | Music Producer

Swift Mastering Brief Info

Audio Mastering, Mixing and Mastering Studio, CD Mastering, Stem-Mastering, Mastering for Vinyl, Audio Post Production, free mix evaluation, MFiT studio, high res 24/96, flac, mp3, etc. Online Mastering Services, dedicated Mastering Room and best Mastering Gear, Dutch and Dutch 8c monitor speakers, Professional Customer Service, Affordable Prices and skilled Mastering Engineer. Affordable online audio mixing and online mastering services for independent artists, producers, mixing engineers, recording studios and indie labels…