Our REFCOM F-Gas certified engineers specialise in the professional replacement of rooftop air conditioning units for commercial and industrial properties across London and the M25 corridor. We understand the critical role these systems play in maintaining comfortable internal environments and the complexities involved in their upgrade or replacement.
Whether your current rooftop AC unit is beyond economical repair, inefficient, or no longer meets your operational demands, we provide a comprehensive replacement service. This includes a thorough assessment, safe decommissioning, removal of old equipment, and expert installation of a new, suitable system tailored to your specific building requirements.
Why Consider Rooftop AC Replacement?
Rooftop air conditioning units are robust, but over time, their performance can degrade, leading to increased running costs and potential system failures. Replacing an outdated or failing unit can offer significant long-term benefits for your business.
Modern rooftop AC systems are designed with advanced technology, offering improved energy efficiency, enhanced cooling or heating capabilities, and often quieter operation. Upgrading can ensure your business remains compliant with current energy efficiency standards and reduces your carbon footprint.
- Significant improvement in energy efficiency and lower utility bills
- Enhanced comfort control and air quality within your premises
- Reduced risk of unexpected breakdowns and costly emergency repairs
- Compliance with current environmental and F-Gas regulations
- Access to advanced features like smart controls and zoning capabilities
- Improved system reliability and extended operational lifespan
Our Replacement Process
Our structured approach ensures a smooth and efficient rooftop AC replacement with minimal disruption to your operations. From initial consultation to final commissioning, our experienced team manages every aspect of the project with precision and professionalism.
We begin with a detailed site survey and assessment of your current system and building requirements. This allows us to recommend the most appropriate and cost-effective replacement solution, considering factors such as cooling capacity, building load, energy efficiency ratings, and budgetary constraints.
- Initial site survey and comprehensive system assessment
- Recommendation of suitable replacement units from leading manufacturers
- Professional decommissioning and safe removal of old equipment
- Expert installation of new rooftop AC systems, including pipework and electrical connections
- Thorough testing and commissioning to ensure optimal performance
- Guidance on ongoing maintenance and operational best practices
Types of Rooftop AC Units We Replace
Rooftop units come in various configurations, including packaged units that combine all components (compressor, condenser, evaporator) in a single housing, as well as split systems with outdoor condenser units and indoor air handlers. Our engineers are proficient in replacing all common types and brands.
We work on a wide array of rooftop air conditioning units, from smaller commercial packaged units to large-scale industrial systems. Our expertise ensures that irrespective of the complexity or scale of your existing setup, we can provide a suitable and effective replacement.
F-Gas Certified & Safety Compliant
As a REFCOM F-Gas certified company, we adhere to the strictest industry standards for refrigerant handling and environmental protection. All our engineers are fully qualified and experienced in managing refrigerants responsibly during the decommissioning and installation phases of rooftop AC replacement.
Safety is paramount in all our operations. Our team follows rigorous health and safety protocols, particularly when working at height and handling heavy equipment on rooftops. We ensure all necessary precautions are in place to protect our staff, your property, and its occupants throughout the replacement process.
Minimising Disruption to Your Business
We understand that significant work like rooftop AC replacement can potentially impact your business operations. Our project management focuses on meticulous planning and efficient execution to minimise any downtime or inconvenience.
Our team works flexibly, scheduling installation at times that cause the least disruption, which may include out-of-hours work where feasible. We aim to complete projects swiftly while maintaining the highest standards of workmanship and safety.
Ongoing Support and Maintenance
Once your new rooftop AC system is installed, we can provide comprehensive maintenance plans to ensure its continued optimal performance and efficiency. Regular servicing is crucial for maximising the lifespan of your new investment and preventing future issues.
Our maintenance services include routine inspections, cleaning, performance checks, and proactive identification of potential problems, helping to safeguard your comfort and operational efficiency for years to come. We also offer repair services for any issues that may arise post-installation.
Frequently asked questions
How long does a rooftop AC replacement typically take?
The duration of a rooftop AC replacement can vary significantly depending on the size and complexity of the unit, site access, and specific project requirements. Smaller units might be replaced in a day or two, while larger or more complex installations could take several days. We will provide a detailed timeline during the initial assessment.
Do I need to replace my entire rooftop unit or can I just repair parts?
The decision to repair or replace depends on several factors, including the age of the unit, the cost of repairs versus replacement, the availability of parts, and its current energy efficiency. If your unit is old, frequently breaking down, or highly inefficient, replacement is often the more cost-effective long-term solution. We can help you assess the best option.
What happens to the old rooftop AC unit after replacement?
After decommissioning and removal, we ensure that all components of your old rooftop AC unit, especially refrigerants, are handled and disposed of responsibly and in accordance with all current environmental regulations. We aim to recycle materials where possible.
Will a new rooftop AC unit be more energy-efficient?
Generally, yes. Modern rooftop AC units are manufactured to much higher energy efficiency standards than older models. They incorporate advanced compressor technology, improved heat exchangers, and smarter controls, which can lead to significant reductions in energy consumption and lower operational costs.
Can you replace rooftop AC units for any type of commercial building?
Our REFCOM F-Gas certified engineers are experienced in replacing rooftop AC units for a wide range of commercial and industrial properties, including offices, retail spaces, warehouses, and more. We tailor our services to meet the specific demands of each building and its operational requirements.






