Business Details
Emergency
services
Your Trusted HVAC Partner in Cambridge
JMJ Air Con is Cambridge's leading air conditioning and refrigeration company, serving residential and commercial clients across Cambridgeshire and surrounding counties. With over 35 years of combined experience, our F-Gas certified team specialises in supplying, installing, and maintaining energy-efficient HVAC systems tailored to individual client needs. We pride ourselves on delivering high-quality solutions using market-leading brands while maintaining minimal disruption during installations.Our services extend to TM44 energy assessments, emergency repairs, and bespoke refrigeration systems for diverse commercial sectors. As an independent local business, we prioritise transparent pricing, personalised consultations, and long-term client relationships built on reliability and technical expertise. Our commitment to sustainability ensures all systems meet current compliance standards while optimising energy savings for clients.
Services
Air Conditioning Installation
Commercial Refrigeration
TM44 Assessments
Maintenance & Servicing
Emergency Repairs
Highlights and features
- Over 35 years of combined experience in HVAC and refrigeration
- F-Gas certified engineers with up-to-date compliance knowledge
- Energy-efficient systems reducing running costs by up to 40%
- Minimal disruption guarantee with evening/weekend working options
- 24/7 emergency repair service across Cambridgeshire
Associations and certifications
- F-Gas Certified
What people say
Polite, professional and highly skilled
No dust or mess left
Excellent service always
Brilliant air conditioning units
Fast response times
Services
Air Conditioning Installation
We supply and install residential and commercial air conditioning systems tailored to property requirements. Our engineers handle single units, multi-split systems, and whole-house solutions using energy-efficient technology. All installations follow minimal disruption protocols with post-installation testing and client guidance included.
Commercial Refrigeration
Specialist refrigeration solutions for businesses including cold rooms, display units, and industrial cooling systems. We provide 24/7 emergency repairs, routine maintenance, and bespoke system design for sectors like hospitality, healthcare, and logistics across Cambridgeshire.
TM44 Assessments
Certified TM44 energy assessments for air conditioning systems over 12kW. Our qualified assessors conduct comprehensive inspections, provide compliance certificates, and recommend efficiency improvements to reduce energy costs while meeting UK regulations.
Maintenance & Servicing
Preventative maintenance plans for HVAC and refrigeration systems to ensure optimal performance. Services include seasonal checks, filter replacements, and compliance documentation, with emergency callouts available 24/7 to prevent business downtime.
Emergency Repairs
24/7 emergency repair service for air conditioning and refrigeration failures. Our rapid response team provides fault diagnosis, urgent repairs, and temporary solutions to protect stock and maintain operations for commercial clients.
People
Jason
Lead Engineer
With over 35 years of HVAC experience, Jason specialises in air conditioning installations and refrigeration systems. Known for meticulous workmanship, he ensures minimal disruption while delivering energy-efficient climate control solutions tailored to client needs.
Questions
What types of air conditioning systems do you install?
We install wall-mounted units, ducted systems, multi-split systems, and heat pumps for residential properties, along with commercial HVAC solutions tailored to business requirements.
Are TM44 assessments a legal requirement?
Yes, TM44 assessments are mandatory every five years for UK commercial air conditioning systems over 12kW to ensure energy efficiency compliance with building regulations.
Do you offer emergency repair services?
Yes, we provide 24/7 emergency repair services for both residential and commercial HVAC and refrigeration systems across Cambridgeshire and surrounding areas.
What areas do you cover?
We serve Cambridge, Saffron Walden, Newmarket, and surrounding Cambridgeshire areas within a 40-minute radius of our base, including business parks and rural locations.
Can air conditioning help with heating?
Yes, our modern air source heat pump systems provide both cooling and heating functions, offering energy-efficient climate control for homes and businesses year-round.
