ABOUT US
Urmson LLP is part of the RJ Urmson Group. Key business activities are the commissioning, surveying, monitoring, and validation of HVAC and water systems. In addition, we offer independent witnessing testing, pressure balancing, and seasonal commissioning.
We offer a level of expertise that benefits a vast range of sectors including healthcare, education, offices, retail, manufacturing, commercial and residential buildings.
We are recruiting! Take a look at our latest career opportunities
OUR SERVICES
Whatever your commissioning requirements are – commissioning of HVAC systems, surveying of buildings, independent witness testing and seasonal commissioning – contact us on 01257 262 683 to see how we can assist you or click below for further details:
Seasonal Commissioning
Our seasonal commissioning service is carried out by certified engineers who can recognise changes in the environment and tweak system performances to ensure all systems work correctly throughout the changing seasons
Commissioning of Domestic Water Systems
It’s a legal requirement under the water supply regulations 2009 that new water supply pipes are commissioned before they are connected to mains water services. Our commissioning involves flushing, swabbing and disinfection
Independent Witness Testing
Our independent witness testing service ensures that your HVAC equipment has been validated and calibrated to the optimum and that the system performance meets the design operational requirement
Pre-commissioning of HVAC
Benefits of pre-commissioning are to ensure the installation is per the contract design, identify issues prior to the commencement of testing, a cost effective way to remedy issues and reduce delays in commissioning and the overall project
Ductwork Leakage Testing
Leaky ducts can significantly increase energy bills, dramatically reduce system capacity and performance, as well as result in potentially dangerous indoor air quality problems. Our Tests are carried out to BESA DW/143 regulations
HVAC Building Surveys
HVAC system building survey is designed to investigate and optimise the design and performance of heating, ventilating and cooling systems. Research suggests that getting the right indoor climate improves productivity
TESTIMONIALS
“ADT Energy has taken great pleasure in contracting RJ Urmson Group in a number of applications of varying sizes. RJ Urmson Group have been very accommodating with all of ADT’s requirements and requests. Detailed certification and documentation for works carried out have always been issued promptly. Their engineers have always conducted themselves in a friendly and professional manor and their workmanship is of the highest standard. I would happily recommend RJ Urmson Group to any potential client requiring their services”
“Due to programme constraints, a number of other factors it were always going to be a challenging project, and it’s been a huge achievement to get to where we are at. Kirk and his guys came into a pressurised situation but still managed to put in as much effort as possible and carried out their works to an extremely high standard which was also noticed by the clients’ consultant when the witnessing was carried out without any issues. Arthur McKay & ISG really appreciate the efforts Urmson LLP put in, as it helped push the job across the line”

“I have had the pleasure of working with Urmson LLP for that past 17 years carrying out a variety of commissioning projects and plant applications. From air flow balancing on commercial VRV projects to CHW mechanical flow rate testing and commissioning, their engineers integrate as part of our team and as a result it helps our business deliver the high standards our clients expect. Credit to their commissioning engineer, John who is consistently punctual, equipped and able to provide specific SSOW and always demonstrates a clear understanding of the works involved. Thank you.”
OUR BLOG
RJ Urmson Group Achieves Constructionline GOLD
Urmson LLP (part of the RJ Urmson Group) have successfully gained GOLD status with Constructionline, demonstrating a long-standing commitment to health and safety.
Urmson Fire website launched
Urmson Fire Specialists (UFS), the newest company to join the expanding RJ Urmson Group family are pleased to announce the launch of their brand new website. The UFS website is the first phase of a four-part company site created in partnership with the Digital First team at UCLan
RJ Urmson rebrand their vehicles
Chorley based commissioning engineers company, RJ Urmson Group has undergone a total brand review and today unveiled its new logo and tagline on their new sign written van to support its evolution to be a leading commissioning, water treatment and fire systems group in the UK.