About Us

Who We Are…

Two Thirds Design – a creative duo whose passion is to design and create imaginative educational environments that support and promote learning.

Gill – loves dying her fringe wacky colours, sketching, skating (especially in Barcelona) and spending time with her family and the guinea pigs.

Carly – loves yoga and head stands, solving tricky briefs, getting arty crafty with her kids, as well as forest walks with her doodle dog and the family.

We are two very lucky ladies, as we love our job and are passionate about what we do!
We understand that every school is unique and we help celebrate and reflect that for you in our solutions.
The majority of our clients are from education, but we also create amazing work for other sectors too.
Carly Mills and Gill Slassor are the are the co-owners of Two Thirds Design Ltd – incorporated in 2006.

Why Choose Us…

  • Wide creative skill base – ensuring consistent designs styles to all solutions.
  • Specialists with vast experience in educational needs and requirements.
  • A friendly team with a collaborative approach and the ability to work with staff and pupils.
  • Our dedicated approach ensures our constant support from initial ideas through to installation.


What We Do…

We specialise in transforming areas into vibrant and stimulating spaces.

Working closely with teachers, we provide creative solutions that improve the visual environments within the school setting.

We don’t just decorate walls; our bespoke designs have a purpose, are relevant and reflect the individual schools core values and aspirations.

We can work alongside a teacher on a specific project, hold workshops or use pupils existing work to create displays, so the school has ownership of the creation.

Using the most up-to-date commercial printing and long lasting materials, we mix creative graphic design with 3D objects and different materials. We pride ourselves in managing projects from the concept stage right through to installation, guiding you throughout the entire process.


To allow us to be able to create the right design for your school we need to understand what your school would like to achieve.

A member our team will come into your school to present our portfolio and provide samples of the types of high quality materials that we use.

Completely free of charge, we will photograph and take measurements of any internal or external areas you are thinking of regenerating. Then it’s over to us!

Back in the studio, we will design a fresh inspiring concept based on your school’s individual needs. We will provide a no obligation, detailed plan of how our team of experts aim to transform each chosen area. This features a range of design options as well as providing a full breakdown of the anticipated costs.

If you are happy to proceed- we’ll get you booked in!

Want to see it first hand?

We can arrange for you to visit one of the schools where we have completed an installation, to appreciate the scale and impact of our work.

Flexible Payment Options

We understand that schools work to strict budgets. We are flexible and able to work to a specific budget or phase the work over a term or year. If it makes things easier, we can also accept staged payments too.

For an informal chat about what our experienced team can do for your school, or to arrange an appointment, please call us today. 0121 233 2057