Business Details
Trusted HVAC Solutions in Bedfordshire
MJD Air Conditioning Services has been delivering specialist HVAC solutions across the UK for over three decades. Our expertise spans air conditioning installation, service, and maintenance for commercial and domestic properties, with a strong reputation for quality workmanship and client-focused service. As an accredited company holding memberships with the Building & Engineering Services Association, REFCOM, Safe Contractor, and THSP Risk Management, we combine industry-recognised standards with cutting-edge technology.We exclusively utilise equipment from leading manufacturers including Mitsubishi Electric, Daikin UK, and Toshiba, offering warranties of up to seven years. Our team of fully qualified engineers, some with over 30 years' industry experience, provides nationwide coverage while maintaining the personal service that has driven our growth since 1992. We prioritise honest consultation, competitive pricing, and long-term client relationships through our comprehensive maintenance contracts.
Services
Air Conditioning Installation
Heat Pumps
Maintenance
Commercial HVAC
Domestic HVAC
Highlights and features
- We have over 30 years of experience in HVAC installation and maintenance
- Our engineers hold City & Guilds qualifications and REFCOM compliance
- We offer 5-7 year warranties on equipment from leading manufacturers
- Our team provides nationwide service coverage across the UK
- We maintain BESA, REFCOM, and Safe Contractor accreditations
Associations and certifications
- Building & Engineering Services Association
- REFCOM
- Safe Contractor
- THSP Risk Management
What people say
First class
Professional, courteous
Reliable and their work
Credit to your company
Energy efficient systems
Services
Air Conditioning Installation
We design and install custom air conditioning systems for commercial and domestic properties using equipment from Mitsubishi Electric, Daikin, and Toshiba. Our engineers ensure minimal disruption during installation while meeting all safety standards. Clients benefit from energy-efficient systems with warranties of up to seven years.
Heat Pumps
Our heat pump solutions provide efficient heating and cooling for residential and commercial buildings. We supply and install systems from leading manufacturers with variable speed inverter technology. These systems reduce energy consumption while maintaining optimal temperature control across different property types.
Maintenance
Regular maintenance contracts ensure optimal performance of HVAC systems. Our qualified engineers perform comprehensive checks, cleaning, and necessary adjustments to prolong equipment lifespan. This proactive approach prevents breakdowns and maintains manufacturer warranty validity through documented service records.
Commercial HVAC
We provide tailored climate control solutions for offices, hotels, and manufacturing facilities. Our commercial services include system design, installation, and 24/7 emergency repair options. Clients benefit from consistent environmental conditions that support business operations and occupant comfort across large premises.
Domestic HVAC
Our domestic HVAC solutions cater to residential properties requiring cooling, heating, or ventilation improvements. We install compact systems suitable for apartments and larger properties, with options for smart temperature control. Homeowners receive expert advice on energy-efficient choices that enhance living comfort.
People
Matt Dennis
Managing Director
With over 30 years in the HVAC industry, Matt founded MJD Air Conditioning Services 18 years ago. He oversees project delivery and maintains quality standards across all installations and maintenance work.
Karen Dennis
Company Secretary
Karen has managed procurement, accounts, and office operations for 15 years. She plays a key role in maintaining the company's growth trajectory and operational efficiency.
Ron Cook
Project Manager
With 10 years at MJD, Ron specialises in HVAC system design and project management. His background includes ventilation design for London-based mechanical firms, bringing technical expertise to commercial projects.
Danny Taylor
Lead Engineer
As our longest-serving engineer, Danny leads onsite installations and repairs. He holds City & Guilds qualifications and REFCOM certification, ensuring technical excellence across all engineering operations.
Questions
What types of air conditioning systems do you install?
We install residential and commercial systems from Mitsubishi Electric, Daikin, Toshiba, and Fujitsu. Options include split systems, VRF systems, and ducted solutions for various property sizes.
Do you provide maintenance contracts?
Yes, we offer planned maintenance contracts that cover regular servicing to maintain system efficiency and satisfy manufacturer warranty requirements for commercial and domestic clients.
Can you repair existing systems?
We repair all major brands with available spare parts. If replacement is necessary, we provide competitive quotes for new installations while maintaining system compatibility.
Are your engineers qualified?
All engineers hold City & Guilds qualifications, REFCOM certification for refrigerant handling, and undergo regular health and safety training to meet industry standards.
What areas do you cover?
We operate in Hertfordshire, Bedfordshire, Buckinghamshire, London, and provide nationwide services for large commercial projects requiring specialist HVAC solutions.
What warranties do you offer?
Warranties range from 3 to 7 years depending on manufacturer and service arrangements. Planned maintenance contracts ensure continued warranty validity through documented servicing records.
Reviews (7)
John Poley
May 04, 2022
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MJD responded very quickly to my initial enquiry made on their website. They visited promptly and at the time specified and provided a quote soon after that I regarded as good value. During their visit, the solution they proposed to my air conditioning needs was pragmatic and attractive. As soon as the equipment arrived, they arranged a date for installation. They arrived on time and completed the work quickly, efficiently and in a friendly and helpful way. There was minimal mess. I am very pleased with the outcome and would heartily recommend their services to others.
Neil
Sep 20, 2021
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MJD installed aircon units in my bedroom and sitting room. The 3 installers were efficient, tidy and friendly. The company were professional and helpful, starting with the initial enquiry and home visit through to completion. I thoroughly recommend MJD.
Mark Bradley
May 30, 2021
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Excellent job and very neat install. Three rooms completed in a couple of days. All the mess was tidied up as the job progressed.
Andrew Aston
Feb 12, 2021
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Have used MJD for a number of systems throughout the house and couldn't be more happy with install, service, aftercare and value for money. Highly recommended
Laura Pritchard
Feb 11, 2021
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Wanted to take the time to write a review for MJD who installed 2 aircon units in our house recently. From the moment we made contact with them they have been nothing but friendly, helpful and easy to deal with. The 2 men who installed the units in our home were very pleasant and tidy workers. They took the time to make sure our house was left clean and tidy - the workmanship is second to none. They also ensured that the outdoor unit blended with the exterior of our house and looks neat. I wouldn't hesitate to use them again or to recommend them! Fantastic all round - we are so pleased.
Bob Berry
Jan 09, 2021
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It's a rare treat to be able to meet folk that are both good at their job and take pride in their work. Matt, James and Scott installed three units for me and sorted out all the electrics with a third party. (Terry and Kev are worth a mention too - awesome job guys). I couldn't be more pleased. I'm sitting here in air-conditioned comfort looking out on a blazing hot June day. Bliss. Thanks guys - I will unhesitatingly recommend you to anyone.
Tracey Aberdein
Jan 07, 2021
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Outstanding service from start to finish! Most polite men and not a bit of mess was left so so clean and tidy. Would highly recommend this company as they were to me. If it's Air Con you want then MJD are the company to have they provide the perfect product and professional service.
