Air Handling Unit Refurbishment


Air Handling Unit refurbishment is a cost-effective solution that ensures compliance with regulations, extends the unit's life by 10-20 years, and improves energy efficiency. It's a strategic investment for modernizing your HVAC system and aligning with sustainability goals.

AHU Refurbishment Air Handling Unit Refurbishment

Air Handling Unit Refurbishment

HALO HVAC is committed to enabling efficient operation, and preventing adverse environmental conditions that can impact occupants and infrastructure through AHU refurbishments. Air handling units (AHUs) are crucial for building performance. 


HALO's cost-effective refurbishment, customized for each AHU and building, ensures compliance with regulations and extends the system's life by 10-20 years.


How we approach an AHU refurbishment.

AHU Refurbishment Air Handling Unit Refurbishment

Our experienced engineers assess all air handling equipment, to develop a condition report that details recommendations and a scope of works. This is paired with an energy-saving feasibility report.

After approval, we coordinate a pre-start meeting, deliver components, and commence refurbishment with minimal business disruption 24/7. 

We stage AHU works to reduce downtime, ensuring a tidy site post-completion. We deliver a compliant, energy-efficient AHU with an extended lifespan.

AHU Refurbishment Air Handling Unit Refurbishment

Innovation & Sustainability

HALO HVAC sets itself apart by providing a comprehensive mechanical and electrical refurbishment solution that seamlessly integrates cutting-edge technologies. Our holistic approach not only revitalizes systems but also ensures enhanced performance and optimized energy consumption.

We are improving the overall performance of HVAC systems by incorporating IoT sensor technology. Additionally, we are facilitating the transition away from gas boilers to more environmentally friendly AHUs equipped with high-efficiency heat pumps. 

Our services align with government sustainability initiatives, facilitating eligibility for many financial assistance programs.

What is an AHU refurb ?

AHU Refurbishment Air Handling Unit Refurbishment

Remodelling or refurbishing your AHU offers a comprehensive solution to various issues with your current system. 


By addressing poor performance, optimizing energy consumption, and repairing individual components, refurbishment ensures that your air handling unit operates at peak efficiency. 


Furthermore, AHU refurbishment extends the lifespan of your AHU, sparing you the expense of premature replacement. Click the link below to learn more;


Our commitment to comprehensive and customer-focused solutions lies at the core of everything we do. We understand that each client has unique needs and priorities, which is why we prioritize understanding those needs before crafting our solutions.



Our holistic approach to AHU refurbishment encompasses not only the technical aspects but also factors such as energy efficiency, sustainability goals, and overall system longevity. By considering these factors, we ensure that our refurbishment projects not only meet but exceed our clients' expectations.


At HALO HVAC, we use innovative technologies to boost AHU system efficiency. Through smart controls and energy-efficient components, we aim to optimize energy usage, cut operating costs, and support clients in achieving net-zero ambitions.


Our sustainable solutions and commitment to customer value, coupled with contributions to broader sustainability goals, distinguish us in the industry. Choose HALO HVAC for AHU refurbishment to receive tailored solutions for your needs and CO2e reduction goals.

AHU Refurbishment Services Overview;



EC Fan Upgrade

Switching to EC fan arrays enhances efficiency, resulting in significant energy and CO2 savings. These fans also provide redundancy in multi-fan setups and require easy maintenance without traditional components like belts and pulleys.

Filters & Air Treatment


Upgrading your filters and housings in line with ISO 16890 can significantly improve IAQ, system pressure drop, and energy consumption, reflecting a commitment to advanced technologies and overall system efficiency.


Replacing worn or damaged coils is essential for restoring optimal performance. Over time, changes in set point parameters may necessitate the installation of new coils that are heat pump ready.



Replacing or repairing dampers and actuators in damaged areas ensures the restoration of airflow set-points while minimizing pressure drop.


Controls & BMS Mods


HALO HVAC ensure energy efficiency and future adaptability. With seamless integration into Building Management Systems (BMS) our HVAC services provide centralized control guaranteeing a smart, sustainable solution for evolving control needs. 

Mechanical & Electrical  

HALO HVAC provides a comprehensive suite of services as part of an AHU upgrade, specializing in mechanical and electrical  installations for both commercial and industrial settings. 

Clean Room & Labs, Chandlers Ford 

13 Air Handling Units serving a critical manufacturing process and science laboratories, all requiring refurbishments, controls and BMS modifications, delivered in a specific time frame, whilst achieving 26t a year CO2e reduction.

5 Star Hotel, Knightsbridge, London

The belt driven fans within the air handling units at this hotel had failed, resulting in no ventilation to several areas of the building including the toilets and the kitchen. It was imperative that the ventilation was reinstated as a matter of urgency to ensure the Hotel was fully operational & compliant.

Offices. Gracechurch Street, London 

With the building owners advertising for new leases a key objective was to ensure the indoor environment is comfortable and healthy. Over time, the existing AHUs became less efficient, leading to higher energy bills and reduced indoor air quality.

Recent Projects


Conformity & Compliance

HALO HVAC Ltd has passed industry leading conformity and compliance testing, verification, and inspection. Our accreditations highlight our technical competences, reliability, and integrity to provide confidence and trust to deliver our services.


We hold insurances for Contractors All Risk, Professional Indemnity, Employer Liability, Public and Product Liability, and Contract Works. We are members of Constructionline, Building Engineering Services Association, and The Contractors Health and Safety Schemes in Procurement including PAS91 and SSIP.


Call to request copies on 0207 117 2087 or email




There is no restriction to the applications that are suitable for AHU refurbishment.

HALO HVAC provides AHU refurbishment across the UK, in almost every sector 24/7.


Data Centre

Commercial Office

Food Industry



Life Science


Book your free 
AHU survey, today.

Fill in the form and we'll do the rest.

Or call us on 0207 117 2087

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Latest News 

NEW - White Paper :  
Learn how Integrating IoT with AHU refurbishment enables sustainable HVAC energy upgrades.

Case Study : Cutting carbon by removing on-site gas-fired boilers and remodelling the AHUS by adopting new DX heat pump technology.

Case Study :  13 AHU's  serving a critical manufacturing process and science labs, upgraded and delivered in less than 5 days.

Case Study :  The fans within the AHU's at this hotel had failed, resulting in no ventilation to several areas.

NEW - IoT Dashboard :  Embrace brilliant automation and uncover energy efficiency secrets with personalised insights, without compromising comfort.

HALO joins BESA. Providing a range of services from training courses & advice to best practice.  This partnership demonstrates our commitment to compliance.

Case Study: This luxury hotel operates 24/7 therefore we delivered this project with zero disruption.

NEW: CPD and Training sessions by HALO HVAC experts - certified content for HVAC industry professionals.

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