Crawley Open house have the Challenging task of reducing homeless, Rehabilitating those who need it, give free advice, offer security & love to those who may not have as much as most.

Our comprehensive installation of free air conditioning for their brand-new facility, is not a donation, it is a token of gratitude.  Read More

2021 sees us in new premises once again. We’re settling into the new place with great storage for our busy year ahead, and work space for our growing team.

The Sub-Cool story all started when Jacob Swei, a trained and experienced air conditioning engineer decided he wanted to do things differently. He wanted to start his own business offering the very best in customer experience and the highest standards of workmanship – no cutting corners, no promising the moon and not delivering, but a company seeking to constantly improve and find better ways to serve its customers and the industry. You’ll now find our HQ at:

Unit 63 Rowfant Business Centre
Wallage Lane
Rowfant, Crawley
West Sussex
RH10 4NQ
The new premises mean we are able to work faster and more efficiently with the extended space and team we need to grow in line with the SubCool FM goals.

In 2015 Jacob took to his mum’s garage to build a business. By 2016 he was employing fellow engineers and looking for premises. The business has slowly and carefully been built up, ensuring quality and attention to detail is never compromised. 2 further moves have finally landed Sub-Cool in their current home in Rowfant. The team now includes 8 employed engineers, including several local to Crawley and a number across the South-East giving great coverage and the ability to be highly responsive from Sussex to Surrey and Kent. The Sub-Cool ethos is to do all the work in-house with no sub-contractors to ensure the highest quality controls. The management and operations team makes sure things run smoothly.


There are certain things that set SubCool FM apart from the competition and these come from the strong company culture of being committed to excellence. The ethos for all employees is:

  • Go the extra mileCorners are not for cutting, we embrace the detail knowing the little things make a massive difference
  • Excellence as standardWe never compromise and never accept average; outstanding is our norm
  • Never stop learning – we are always seeking ways to develop, make improvements and give an ever-better customer experience
  • HonestyWhen you pride yourself on the standard of your workmanship, service and attitude, there is no need to be anything but honest
  • IntegrityWe are thorough, trust-worthy and accountable for all that we do
Mini infographics for SubCoolFM 6 years in business 8 engineers, all areas of the south-east 10 out of 10 on Checkatrade

The management and operations team



Founder & Managing Director

Jacob is the man with a plan that set Sub-Cool in motion. He still  has a very hands-on role overseeing all areas of the business and liaising with clients.



Client Relationship & Compliance Manager

Sam manages communications and planning in the HQ. She ensures everyone is in the right place at the right time and is fully informed of all necessary requirements.



Operations & Experience Manager

Jon is a new addition to the team to help sure the smooth and fluid flow of operations at SubCool FM delivering the very best customer service.

SubCool FM accreditations