John Comaish Advertising Services Ltd.
Outdoor Advertising Specialists
'Amongst the biggest of it's kind in the UK'.
Currently operating from 3 locations and covering wide areas across Birmingham, the North West, North Wales, Lancashire, Cumbria, Yorkshire and the North East.
We install all types of outdoor media covering a range of formats and environments from roadside hoardings, smaller supermarket and malls advertising units also working on the many formats of media on the rail networks across the country.​

We have teams of skilled and semi-skilled labour responsibile for the erection and maintenance of the hoardings and units, also the fortnightly changes in advertising. 

Our teams change over 4000 types of advertising media across a two week period

Our goal is to provide the outdoor advertising industry with a service that strives to not only meet client expection but exceed them. Ensuring we are fully accountable at all times. 
Teamwork, to create and maintain respect for self and others so an environment of team work can grow and strive.

To ensure we give the best solution each time, to be efficent in our approach to all we do.

To be responsible for our actions and how they influence the lives of customers, colleagues and the public.
(Ensure the best solutions)
(To be responsibe for our actions)
...Optimum satis est sed agre modo... 

'The best is good enough but only just'

John Comaish is a family run organisation, established in 1989.

  1. Managing Director
  2. Managing Director
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  6. Managing Director
  7. Managing Director
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  9. Managing Director

Founded by John Comaish. John from the age of 17 has been involved in the outdoor media sector where he worked as an electrician within the Arthur Maiden group for many years.

​​John first set up as John Comaish Electrical in 1989, working on Maiden Outdoor advertising hoardings in the North West and Birmingham, this increased to the Yorkshire region in 1995. In 1991 John was awarded his first maintenance contract with Clear Channel UK to maintain their bus shelters in the North West. 

In Novemebr 1994, John Comaish Electrical became a Limited company with the new name of John Comaish Advertising Services Limited. Over the years John and Beryl's three daughters have joined the company, firstly with his youngest Sue in 1993, followed by Karen in 1996 and then Janet in 1998. 

25 Years
We celebrated our 25th anniversary in 2014 which we our very proud of. Despite many changes over the years the advertising hoarding portfolio we worked on at the very start for Maiden Outdoor is the same portfolio we work on today for Primesight.

Although the company is now headed by Karen with the support of both Janet and Sue, John is still very much on board and continues to provide a wealth of experience and advice. Beryl continues to work in accounts and together the family are still as commited in delivering the exceptional service to their clients as they were in 1989.

Early Days


Present Day

Increase in posting contract with Primesight Outdoor in the NW and Yorkshire

Awarded first Clear Channel UK posting contract

Yorkshire branch opened

Opening of first depot based in Liverpool

Expanded to NE with depot in Newcastle

CC UK Bus stop contract

The family are as commited today as they where back in 1989

Maiden Outdoor Electrical contract won

JC Decaux retained our services with a posting contract for rail infrastructure

John was awarded his first posting contract by Maiden Outdoor

Awarded first posting contract in Yorkshire

Awarded whole Maiden Outdoor contract for posting in the NW and first posting contract with Viacom Outdoor

Johns wife Beryl joins him as co. secretary

depot moved

Key Milestones
The company has faced economic adversities along with strong growth over the years, with it now recognised as one of the biggest outdoor advertising contractors in the UK.

Our commitment to the industry

Our can do attitude means we can find a solution to almost every request that comes our way.

Through dedication, hard working teams, careful planning and a pursuit of excellence we continuosly strive to offer the outdoor media industry and our customers the best service we can offer.

Planning and timely solutions result in fast turn arounds for delivery of installations which gives us and our customers an advantage in the media sector.
Through training, development and finding the right work life balance, we continue to engage with our employees to create a culture for retention and future succession.

Health, Safety and Environment

We promote a strong health and safety culture and our proud of our success in the area.

Safe Contractor ApprovedSafeContractor is one of the fastest growing health and safety assessment schemes in the UK

RISQS Audited and QualifiedThe RISQS is the Great British rail industry audit that qualified us to work on rail installations. The audit ensures we demonstrate compliance in our daily activities and management systems to include Network Rail service

IOSH certified (Institution of Occupational Safety and Health)

CHAS - health and safety accreditation scheme for the construction industry

Members of the British Safety Council

ECA Approved Contractor (Electrical Contractors Association)

OMC (Outdoor Media Centre)

CIRAS (Confidential Reporting System)

We have a wide range of accredition which includes:

International Powered Access Federation (IPAF) 
Prefabricated Access Suppliers' & Manufacturers' Association (Pasma)
Asbestos awareness training
Abrasive wheels training
Safe Isolation
Manual handling
Harness inspection & appreciation
Inspection & Testing
17th Edition
Fire safety training for subsurface stations
First aid training
New roads and street works act 1991 (NRSWA)

We aim to improve our environmental practices year on year to prevent and/or reduce pollution from our activities. We continue to find new approaches to recycling and disposing of materials and other physical assets under our control. 
Our team measures it's impact on the environment setting targets for ongoing improvement.

John Comaish complies with all relevant environmental legislation and through training and staff awareness of environmental issues has enlisted the support of all operatives in improving the company's performance.


Social Responsibility
We aim to be socially just, caring and considering people and the planet at all times.

Through shared thinking across all levels of the organisation we create the right mind set to underpin the cultures and behaviours that will continue to support our core values into the future.