Brothers, Christopher and Craig Costin have worked tirelessly over many years to create three industry leading, expert led companies…

Our History

  • 2013

    Christopher Costin starts a small window cleaning round in the seaside town of Helensburgh. The sole trader business, then called Squeegee Window Cleaning Services, is born.

  • 2014

    Brother Craig and father Mark Costin join the business and a limited company, Squeegee Cleaning Solutions, is formed.


  • 2015

    Growth is exponential as the buy over of two companies occurs, one of which is EC Cleaning, whom at the time were one of the largest cleaning companies in Argyll and Bute. The second, Pristine Window Cleaning, pushed expansion across the west of Scotland.

  • 2016

    Brothers Christopher and Craig form VentPro Limited on the back of a demand from existing clients for specialist ventilation cleaning. Industry expert Gavin Clelland is brought in to manage this company.


  • 2017

    Growth continues for both companies as they move into new offices in Dumbarton. Scott Curran joins as Sales Manager and VentPro becomes one of the largest specialist ventilation cleaning companies in Scotland.

  • 2018

    The Costin Group Limited is formed following the purchase of RCS Enviro Limited, a company that holds a Royal Warrant.

    Our new headquarters open in Bathgate and the Costin Group team grows to over 60.


A brief overview of VentPro


VentPro Ltd is a specialist kitchen ventilation cleaning and maintenance company with commercial contracts spanning the whole of Scotland and the UK.

We are passionate about maintaining compliance and providing the highest level of TR19 compliant ductwork cleaning.

A brief overview of Squeegee


Squeegee Cleaning Solutions is one of Scotland’s largest independent and family run cleaning companies.

We offer low cost, high quality window cleaning, carpet cleaning and commercial cleaning services throughout Scotland

A brief overview of RCS Enviro

RCS Enviro

Specialising in commercial and institutional deep cleaning as well as pest control and prevention, RCS Enviro will work with you to ensure your needs are met swiftly and efficiently.

From restaurants, hotels and golf clubs to schools, colleges and local government buildings, RCS Enviro’s qualified staff with their wealth of knowledge will provide you with a service that you can trust.

For over 40 years, RCS Enviro has been providing commercial deep cleaning and pest control services that clients can rely on.

Going above and beyond to provide a cleaner, safer working environment

Costin Group Mission

Our groups main mission across all business sectors is simply to go above and beyond normal operational and procedural requirements to provide a cleaner, safer working environment by offering solutions focused on quality, compliance and passion.

There is always room for growth from within

Join The Costin Group

We’re always on the lookout for passionate and talented individuals to join our ever-expanding team.

If you have the skill and desire to provide a world-class service, we want to hear from you.