Our philosophy

A valued partner in delivering industry leading services in HVAC Commissioning, Water Treatment and Legionella Compliance.

Cleartech invest considerable time, effort and resources on building the expertise of our engineers and ensuring customer satisfaction. We understand that building an open and collaborative relationship between our clients and ourselves will offer the level of trust necessary to provide a punctual and compliant delivery.

The experience and capabilities of Cleartech’s engineering staff fully meet the demands of working in partnership.  Our unique training programme is not only focused on technical competence but also covers Health & Safety and construction industry recognised accreditation, including CHAS, SafeContractor, Constructionline and PASMA.

As well as this, Cleartech are certified members of the Legionella Control Association (LCA), Commissioning Specialists Association (CSA) and the Closed System Control Association (CSCA). By offering this level of training and competency, we believe our engineers can successfully complete their duties without reliance on our client’s knowledge and resource.

Cleartech offer a multi-skilled workforce which is backed up by extensive in-house technical support and training. We pride ourselves on being resolute in ensuring delivery and exceeding our client’s expectations. All of our activities are dictated by current codes and guidelines offered by CIBSE, L8 ACOP and BSRIA.

With offices in Glasgow, London and Sunderland, Cleartech have the resources to cover the whole of the UK and can provide HVAC Commissioning and Water Treatment solutions spanning Scotland, England, Wales and Ireland.

If you have recently won or are tendering for a project that requires HVAC Commissioning and Water Treatment services, if you need a Legionella risk assessment conducted on your property or a Legionella compliance regime actioned then Cleartech would definitely welcome the opportunity to tender for you.

To speak to one of our experienced team members; call today on 01698 682000, send an email to [email protected] or submit a contact form via our website 

The Cleartech team look forward to working with you. 

Training, Development & Competence

We train and develop staff to help them grow within the business and the industry. Ensuring staff have correct skillset for works, identifying any requirements for re-training is key for continued growth.

Industry Leading Compliance Standards

By proactively engaging with regulatory bodies such as BSRIA, WMS, LCA and CSCA and embracing new solutions our engineers deliver services that exceed industry best practice.

Customer Satisfaction

Our understanding of the importance of compliance, programme and cost certainty allow the Cleartech team to continue to be a key delivery provider with our clients & partners.  

Reliable Project Delivery

We continually deliver a reliable, excellent customer care and quality service that is timely, meeting the aims and requirements of our clients.

Meet the team

Jim McGuigan

Chief Executive

Directing the company’s operations while delivering strategic guidance and navigating the direction of the board and management team. Ensuring delivery and compliance on all projects and services, whilst ensuring the company achieves its mission and meets its objectives.

Gillian Cameron

Finance Director

Effectively managing the finances of the business including monitoring cash flow, accounts and ensuring all other financial transactions are in line with statutory regulations and legislation. As a member of the senior management team help set and achieve business goals for future growth and profitability.

Jack Doak

Operations Director

Manages and oversees all delivery aspects of the company ensuring compliance from tender stage, to live projects, to project planning, health and safety and final completion & delivery of projects.

Liam Dolan

Contracts Manager Water Hygiene Division

Maintaining relationships, correspondence and documentation with Cleartech’s vast portfolio of service and maintenance customers. As well as managing operations, providing solutions and ensuring compliance with relevant guidelines.

Carl Mason

Commissioning Manager NE England Lead

Based in our North East England office, Carl is responsible for heading up all HVAC operations in the NE as well as carrying out Commissioning Management on projects across the UK.

Diane wood

Project Support Manager

‘Providing support to the project team where necessary, and assisting the estimating department in completion of tenders and quotations.

Rebecca McGuire

Project & Admin Support

Providing administrative support to all aspects of the business, from directors to site engineers and operatives. Rebecca is also involved in assisting with sales enquiries and providing support to our project team.

Lisa Singleton

Financial & Commercial Administrator

Providing support to our management team, Lisa helps us with sales invoicing & retention creation. As well as, weekly reconciliation of operations. From time to time Lisa will get involved with our weekly marketing meetings too.

Ryan Milne

Trainee Estimator

Based in our Glasgow head office, Ryan is part of the estimating and bid team. This involves compiling information from tender enquiries and doing take offs from tender drawings and project specifications.

Lucy Ann McCullagh

Junior Project Support

Lucy is based in our Glasgow head office, and provides support to the project team to ensure the project we work on are running smoothly.

Rory Penman

Junior Project Engineer

Rory is based in our Glasgow head office, and works on project management and reviews, preparing health and safety documentation and liaising with our clients and engineers.

Scott Carson

Key Account & Business Development Manager - Water Hygiene Division

Scott is based in our Glasgow head office, and is responsible for maintaining and developing relationships with current and prospective clients. Work closely with internal teams to ensure the successful delivery of services. Identify new business opportunities and monitor emerging market trends.

Taylor Hemming

Junior Administrator

Providing administrative support to all aspects of the business. Taylor is also involved in assisting with digital marketing support whilst completing her apprenticeship.

Sharon Simpson

Credit Controller

Sharon assists and implements effective credit control policies, issuing invoices, maintaining customer records and helps with additional financial and administrative tasks.

Why ClearTech?

Cleartech invest considerable time, effort and resources on building the expertise of our engineers and ensuring customer satisfaction. We understand that building an open and interdependent relationship between our clients and ourselves will offer the level of trust and collaboration necessary to provide a punctual and compliant delivery, whilst maintaining cost certainty.


Procurement Director

Leading M&E Contractor

“Cleartech won the project based on being most competitive price, and past good experience of working with them. Our PM was particularly impressed by Cleartech engineers’ attitude onsite, how they reactive and flexible they were and had an excellent attitude towards H&S. The project was completed on time and on budget. We look forward to partnering Cleartech on future projects”

Project Director

Main Contractor £300M Flag Ship Healthcare Project

“Cleartech were thorough, professional and appropriately challenging of the team, striving for high standards and clarity around complex system integration. They were a key partner in the whole project team ensuring the successful delivery and sign off of this prestigious project”

Project Manager

MEP Sector

“Jack Doak of Cleartech Group engineered this project for us, significant planning had to go into this due to the location of the depot in Orkney Shetland Islands. Cleartech arrived on site on schedule and completed their works as per programme given. Excellent service all round”

Health & Safety Manager

Leading Care Provider with multiple sites across UK

“Each individual service manager withing our organisation has its own contract with Cleartech and their overall feedback is that they are extremely happy with Cleartech’s service delivery and find the site engineers knowledgeable, helpful and most importantly, respectful of our service users”

Property Manager

Care and Social Sector

“We have been using Cleartech for our site wide Legionella Compliance delivery for over 5 years, they have been through two tender processes and were successful and competitive in both. Their engineers are very professional, and nothing is a problem. They turn up on time having already informed our service of their planned arrival. They have also on occasion carried out water tank cleaning and disinfection on weekends on our larger offices so as not to disrupt staff. All works were carried out professionally”


UK Wide Property Consultancy & Chartered Surveyors

“Cleartech currently undertake a wide range of L8 ACOP water hygiene works on a number of properties withing our portfolio. Cleartech’s extensive range of accreditations offer our organisation comfort in ensuring compliance with the current legislation at properties they are involved in, therefore I am happy to recommend Cleartech’s services to any other organisation”

Property Inspector

Major Local Authority in Scotland

“Cleartech have been working for this council for over 5 years. We find their working practices to be very good and their paperwork and reporting is of high quality – nothing is too much trouble and their response times are very good. Office staff are most helpful in dealing with enquiries and invoices etc. Their current contract is for anther 3 years and I have great pleasure in recommending this company to other contractors and organisations”

Contract Manager

UK Wide Blue Chip FM Provider

“First thanks for the works that was carried out last week in Glasgow site. Everything went well and pass on my thanks to your engineer who carried out the work. We have had very positive feedback from our client about the workmanship and how the project was managed overall. He is keen for Cleartech to tender to carry out similar works in other clusters of his properties across the UK ”

Operations Director

UK Wide M&E Contractor

“Jack, pass on our gratitude to the Cleartech teams on the St Andrews project, they went above and beyond. Our PM and Site Foreman were both saying how well Cleartech worked, and demonstrating the flexibility of working on numerous HVAC systems was greatly appreciated in what was a challenging project in terms of timescales in the run up to handover”