Professional Air Conditioning Repairs Across London

Arcas Air Conditioning provides professional air conditioning repairs for homes and businesses across London. Whether your system has stopped working, isn’t cooling properly, is making unusual noises, or is displaying an error code, our experienced F-Gas certified engineers will diagnose the fault and recommend the most effective repair solution.

Repair Services

Emergency Air Conditioning Repairs

Fast response for urgent air conditioning faults, subject to engineer availability, helping restore comfort as quickly as possible.

System Diagnosis & Fault Finding

Our engineers carry out detailed diagnostics to identify the cause of the fault before recommending the most appropriate repair.

Refrigerant Leak & Pressure Repairs

We locate refrigerant leaks, carry out repairs where possible, safely recharge refrigerant, and test your system to ensure it operates correctly.

Electrical & Component Faults

From faulty sensors and circuit boards to fan motors and electrical components, we repair or replace damaged parts to restore reliable performance.

Why Choose Arcas for Repairs?

Experienced Fault Diagnosis: We identify the root cause of the problem rather than simply treating the symptoms.
F-Gas Certified Engineers: All repairs are completed safely and in accordance with UK regulations.
Honest Recommendations: If a repair isn’t the most cost-effective solution, we’ll explain your options clearly before any work begins.
Quality Replacement Parts: Where replacement components are required, we use suitable, high-quality parts wherever possible.
Residential & Commercial Repairs: We repair air conditioning systems for homes, offices, retail units, restaurants, salons, and other commercial properties.
Professional Aftercare: Advice and servicing recommendations to help reduce future breakdowns.

Need urgent help? Contact us for an air conditioning repair today. In line with UK F-Gas regulations. Whatever the issue, our air conditioning repair specialists diagnose the fault fast and get your system running again.

F-Gas Certified Engineers

Licensed HVAC Professionals

15+ Years Experience

Local Industry Expertise

Fully Insured

Comprehensive Property Protection

      EXCELLENT  
   Based on 45 reviews 
    
 
 
 
   
 
 
       Posted on Google  
   
   Janet Walsh 
 
 
 
 Trustindex verifies that the original source of the review is Google. Arcas Air Conditioning was highly recommended to me by a neighbour and I can understand why. The team did a fantastic job of installing air conditioning in a large kitchen/diner and were very knowledgeable about the best type of unit. It was a neat, well executed job and their carpentry surrounding the outside unit was excellent. They were also very tidy. I have no hesitation in recommending this firm. Their quality (and speed) of communication was also excellent.
  
 
      Posted on Google  
   
   Jack Hammond 
 
 
 
 Trustindex verifies that the original source of the review is Google. Great service. Good communication, fast installation, clean and tidy work, all good! Definitely recommend.
  
 
      Posted on Google  
   
   Mina Tever 
 
 
 
 Trustindex verifies that the original source of the review is Google. Very clean and smooth work! I am very happy with our AC unit installation. Allan and his team are doing a great job! And Ainha is always very responsive with emails! Great team work overall.
  
 
      Posted on Google  
   
   joe coley 
 
 
 
 Trustindex verifies that the original source of the review is Google. very impressive service; minimal disruption, very conscientious work, house left spotless, and a great result. highly recommended
  
 
      Posted on Google  
   
   Emma Harvey 
 
 
 
 Trustindex verifies that the original source of the review is Google. Allen and his team were professional, friendly and tidy. They did a very neat job and completed the works quickly. Allen was available for to answer questions before, during and after, great service!
  
 
      Posted on Google  
   
   Zoe Jeanes 
 
 
 
 Trustindex verifies that the original source of the review is Google. Excellent service from start to finish. Allan came out very quickly after our initial enquiry and provided a quote almost immediately. Once we’d decided to go ahead, the installation was booked in and completed really quickly.

The installation team were fantastic – friendly, professional and incredibly tidy. They left the rooms exactly as they found them, and you genuinely wouldn’t have known they’d been there.

A great experience all round with a lovely team. I’d highly recommend them to anyone considering air conditioning.
  
 
      Posted on Google  
   
   Lewis Chong 
 
 
 
 Trustindex verifies that the original source of the review is Google. Alan did a great job from start to finish. From the first visit he clearly communicated his recommendation, the cost and timing. His team did a great job cleaning up and even built a wood cover for the unit outside. I would definitely use Alan again and highly recommend.
  
 
      Posted on Google  
   
   Josephine Casey 
 
 
 
 Trustindex verifies that the original source of the review is Google. I am thrilled with the job to fit air conditioning to my work space in the garden. The two men were so professional and friendly from start to finish and the quality of the work was great!! Highly recommend this company.
  
 
      Posted on Google  
   
   R Ktr 
 
 
 
 Trustindex verifies that the original source of the review is Google. Amazing and quick service. Unit works well, and Alan and team left everything spotless. Thank you!
  
 
      Posted on Google  
   
   Roger Jarman 
 
 
 
 Trustindex verifies that the original source of the review is Google. Allan and his team installed air conditioning in our loft bedroom this week (June 2026). They did a great job. Very professional. Communications were faultless. Always knew what was happening and who was doing what. Responsive too. Resolving issues during the installation process to my satisfaction. Good VFM too. Highly recommended. Roger W5
  
 
  
  
 
 
     Verified by Trustindex  Trustindex verified badge is the Universal Symbol of Trust. Only the greatest companies can get the verified badge who has a review score above 4.5, based on customer reviews over the past 12 months. Read more

Our Repair Process

Submit Your Repair Request

Complete our repair enquiry form with your contact details and information about the fault.

Fault Assessment

Our team reviews your enquiry and may request photos, videos, or the system model number to help assess the issue.

Engineer Visit

An engineer attends your property to diagnose the fault and provide the most suitable repair solution.

Repair & System Testing

Once approved, we complete the repair and test the system to ensure it is operating safely and efficiently.

Air Conditioning Repair FAQs

Do you repair all air conditioning brands?

We mainly provide repairs for the air conditioning brands we install and support. If you are unsure whether we can assist with your system, please complete our repair enquiry form and our team will review your request and confirm availability.

Do you offer emergency repairs?

Yes, subject to engineer availability, particularly during periods of high demand.

How quickly can you attend?

Response times vary depending on demand, but we always aim to attend as soon as possible.

Will you tell me the repair cost first?

Yes. We’ll explain the fault and provide a quotation before carrying out any repair work.

Can you repair commercial air conditioning systems?

Yes. We provide repairs for both residential and commercial air conditioning systems.

Do you carry replacement parts?

Our engineers carry commonly required parts where possible. If specialist components are needed, we’ll order them and arrange a return visit.

What if my system can't be repaired?

If replacement is the better option, we’ll explain why and provide recommendations for a suitable new system.

Can you repair systems you didn't install?

Yes, we may be able to repair air conditioning systems that were not originally installed by Arcas. However, due to availability and workload, priority may be given to systems we have installed and maintain. Complete our repair enquiry form and we will assess your request.

Do you offer servicing after repairs?

Yes. We recommend regular servicing and maintenance to help keep your system operating efficiently and reduce the likelihood of future faults.

CONTACT ARCAS

Complete your repair enquiry today and our engineers will diagnose the fault and recommend the right solution.

F-Gas Registration No: REF1021449•ARCAS & AIRCONDITION UK LIMITED

Connect directly with our local F-Gas certified engineers to schedule an estimate or emergency fault assessment.