Business Details
50+ Years
experience
Emergency
services
Trusted HVAC Contractors in London
Established in 1948, our company has evolved from a small refrigeration specialist to a leading provider of advanced HVAC solutions across the South East. Our team of certified engineers delivers bespoke design, installation, and maintenance services for commercial, industrial, and high-quality residential applications. With ISO 9001:2015 certification and partnerships with industry leaders like Daikin and Mitsubishi, we combine cutting-edge technology with over 75 years of expertise to ensure energy-efficient, environmentally responsible systems.Our commitment to excellence extends to 24/7 emergency support, comprehensive maintenance contracts, and a focus on minimising client downtime. We pride ourselves on tailoring solutions to meet specific project requirements while maintaining the highest standards of service and technical proficiency.
Services
HVAC Installation
Refrigeration Systems
Ventilation Solutions
Chilled Water Systems
24/7 Maintenance
Details
- Year established: 1948
Highlights and features
- We have over 75 years of experience in HVAC solutions
- Our team holds ISO 9001:2015 certification for system installation
- We offer 24/7 emergency response service 365 days a year
- Our engineers operate from fully equipped mobile workshops
- We partner with leading manufacturers like Daikin and Mitsubishi
Associations and certifications
- ISO 9001:2015
Services
HVAC Installation
We design and install custom heating, ventilation, and air conditioning systems using the latest technology. Our engineers ensure minimal disruption during installation while optimising energy efficiency. Systems incorporate advanced inverter technology that reduces energy consumption by up to 30% compared to traditional units.
Refrigeration Services
Our F-Gas certified engineers install and maintain commercial refrigeration systems including cold rooms and display cabinets. We provide 24/7 breakdown cover with rapid response times and maintain a comprehensive inventory of spare parts for all major equipment brands.
Chilled Water Systems
We supply and maintain precision temperature control systems for critical environments. Our chilled water systems maintain accuracy within 0.5C, ideal for data centres, hospitals, and industrial applications requiring consistent thermal management.
Ventilation Solutions
We implement mechanical ventilation systems with heat recovery to ensure healthy working environments. Our installations comply with current health and safety regulations while optimising energy efficiency through advanced filtration and air distribution technology.
Planned Maintenance
Our tailored maintenance contracts extend equipment lifespan and prevent unexpected failures. Services include annual F-Gas surveys, spares inventory management, and priority call-out arrangements to maintain system efficiency and regulatory compliance.
People
John Maskell
Founder
Founded the business in 1948 as a refrigeration specialist, establishing its reputation for technical excellence and customer service.
Richard Maskell
Former Director
Co-led the business from 1977, expanding into air conditioning services and overseeing the company's relocation to Wimbledon in 1987.
Kim Maskell
Director
Joined the business in 1992, instrumental in forming Maskold Environmental and achieving ISO 9001 certification in 2017.
Zal
Installation Manager
Joined in 2000 to lead installation operations, now part of the leadership team managing day-to-day technical delivery.
Questions
What HVAC systems do you specialise in?
We specialise in commercial and industrial refrigeration, air conditioning, ventilation, and chilled water systems for both new installations and retrofits.
Are your engineers certified?
All our engineers are F-Gas certified with specialist training for leading brands including Daikin, Mitsubishi, and Toshiba equipment.
Do you offer emergency services?
Yes, we provide 24/7 emergency response for contract clients with rapid call-out from our fully equipped mobile workshops.
What accreditations do you hold?
We maintain ISO 9001:2015 certification for installation and maintenance of HVAC systems and are working towards ISO 14001 environmental management.
How do you ensure system efficiency?
We use inverter technology that reduces energy consumption by 30% and offer planned maintenance contracts to optimise system performance.
