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AC repair: get $100 off your repair
AC repair: get $100 off your repair

Air conditioning repair in London and the Greater Surrounding Area

Air Conditioning Repair London

For all your air conditioning repair needs in London, Ontario, homeowners can rely on the M&K Heating and Air Conditioning team to get the job done right. With over 40 years of industry experience, we’ve got the skills and knowledge to provide homeowners with high-quality solutions and stellar customer service.

Call M&K today for fast, reliable air conditioning repair in London, Ontario!

Get 24/7/365 Expert AC Repair in London.

M&K Heating and Air Conditioning provides homeowners with reliable, round-the-clock residential repair services for central air systems across London and the surrounding areas:

  • 24/7/365 residential service for air conditioner leaks, frozen AC, compressor repair, fan troubles, lack of cool air & all other central air issues.
  • Emergency & last-minute home appointments are available, including after-hours, weekends, and holidays, at no additional cost to homeowners!
  • Certified experts with four decades of experience and G1, G2, 313A & 313D, 308A, ODP, Wardflex, and Supervisor Training Program & IHSA Health and Safety Education Program for Contractor Safety

AC Repair London FAQs

Every air conditioner system and issue is unique. As a result, the steps necessary to solve the difficulty you’re having will be specific to your circumstances. Having said that, the steps that follow are often a part of the repair process:

  1. Contact an HVAC expert: Making an appointment with an HVAC professional from M&K Heating and Air Conditioning is the first step. You’ll schedule a meeting with our staff members and clearly detail the problem you’re having.
  2. Initial evaluation: At the scheduled time, an HVAC expert will visit your place. They will start by talking to you about the problem and could potentially ask you questions to learn further details.
  3. Visual inspection: The technician will check for obvious signs of wear, deterioration, or faulty connections while visually inspecting the air conditioner, including both its internal and external components.
  4. Diagnostics: A technician will examine and test the air conditioning unit to determine the exact issue. To do this, it could be necessary to turn on the apparatus while various instruments are employed to gauge temperature differences in the air distribution, among other crucial elements.
  5. Repairs: A qualified technician will start making the required repairs as soon as you approve the repair plan. The expert will then assess the efficiency and correct operation of the air conditioning system.
  6. Recommendations: Last but not least, the expert might recommend periodic inspections to ward off possible problems and increase the efficiency of the air conditioner you have.

Fixing an air conditioner is highly complex, which is why it’s essential that homeowners partner with a professional HVAC company they can trust to get the job done correctly!

M&K Heating and Air Conditioning is available 24/7/365 days a year, including after-hours, weekends, and holidays, at no additional cost to you ever! Book with our team over the phone or use our online booking form to reserve your AC repair in London, Ontario, today!

Your AC unit’s repair or replacement should be based on a number of different considerations, and in truth, there is no right answer. When choosing, keep the following in mind:

  1. The age of the AC unit: AC units have a lifespan of 10 to 15 years. It might be more cost-effective to replace your equipment if it needs a pricey repair and is nearing the end of its useful life because other problems could develop later down the line.
  2. Repair cost: Compare the price of repairs to the price of a new item. If the cost of repair is expensive, replacement might be a better financial decision.
  3. Efficiency: Newer air conditioners frequently use less electricity. The replacement of an outdated or inefficient unit can result in long-term energy savings and lower power costs.
  4. Repair frequency: A frequent need for AC repairs could indicate a system that is becoming less reliable. In these circumstances, replacement may be the wiser long-term financial decision.
  5. Performance: Evaluate how well your current air conditioner cools your home. If it has trouble maintaining a pleasant temperature, changing it might increase comfort while using less energy.

If you’re unsure whether to repair or replace your home’s current air conditioner unit, we suggest reaching out to the team at M&K Heating and Air Conditioning to schedule a repair appointment with a technician. They’ll be able to assess the problem and provide you with a realistic solution moving forward. If your current system is deemed unrepairable, we’ll help you set up a consultation appointment with a home comfort advisor so you can learn more about our current discounts and flexible financing options that can help you save big on your new equipment! We’ll even throw in a complimentary new system purchase quote!

Given a number of variables, the time required to repair an air conditioner can vary significantly. Simple improvements can usually be finished in a few hours, while more challenging procedures may take longer. Here is a rough timeline for various air conditioning repair procedures:

  • Basic repairs: Simple repairs can typically be finished in less than two hours, including replacing an old capacitor, clearing a clogged condensate drain, cleaning the coils, and replacing the air filter.
  • Refrigerant refill: Depending on how long it takes to locate and address any leaks, if any, in the air conditioner system, a cooling fluid recharge will probably take two hours or so.
  • Replacing the compressor: This task is more complex and may take a few hours to perform when the compressor is broken.
  • Electric: Electrical repairs, like replacing a malfunctioning thermostat or bad wiring, can take between an hour and three hours, depending on their complexity.
  • Replacing essential components: It can take two to five hours to replace a significant part, such as the condenser coil or evaporator coil.
  • Evaluation and diagnosis: As the technician must first diagnose the issue before beginning the physical repair work, this stage may take longer than expected if the technician is having trouble locating the source of the issue.
  • Emergency repairs: Technicians typically rush to fix the air conditioner system within a couple of hours when cooling is urgently needed.
  • Parts supply: The availability of replacement parts may have an impact on the turnaround time for repairs. If a specific feature needs to be ordered, the repair may take longer to finish.

Again, although these are general estimates, keep in mind that the specific amount of time needed to do a cooling system repair may differ based on your unique circumstances. Still, it is crucial that you do not try to repair your home’s air conditioning if you realize there is a problem with it. Because they are such intricate devices, air conditioners have the potential to seriously harm your cooling system and endanger your well-being if you don’t understand how they work.

We advise asking the staff at M&K Heating and Air Conditioning for help! For no additional charge, our staff of skilled and licensed HVAC technicians are available 24/7/365, including on weekends, holidays, and after business hours!

Use our online booking form to schedule your repair appointment, or give us a call to do so!

When you detect any of the below symptoms or difficulties, you should schedule an AC repair:

  • Poor cooling: If your air conditioner is on, but you’re not getting enough cooling, there might be an issue with the compressor, refrigerant, or other parts.
  • Poor airflow: A blocked air filter, a broken blower motor, or ductwork problems may all be to blame for weak or inadequate airflow from your vents.
  • Strange sounds: Unusual noises like banging, hissing, grinding, or squealing may be caused by problems with the fan, compressor, or motor.
  • Moisture or leaking: If there are any water or refrigerant leaks close to the appliance, there may be an issue with the condensate line, the coils, or the coolant lines.
  • Frequent cycling: If your air conditioner uit turns on and off frequently, the system may become overworked, which will reduce its efficiency and accelerate wear and tear.
  • Frozen coils: Ice on the evaporator or condenser coils can lower its performance and air circulation, frequently as a result of refrigerant or airflow problems.
  • A thermostat that is unresponsive: Your thermostat may require adjustment or replacement if it is unresponsive to temperature fluctuations or fails to keep the ideal temperature.
  • Odours that are unusual: Musty or foul odours may suggest the presence of mould or mildew in the ductwork or unit. An electrical problem could be indicated by a burning smell.
  • Increased bills: An abrupt increase in your cooling costs without an obvious cause, such as extreme heat, maybe a sign of a problem causing your air conditioner to run less efficiently.
  • Lack of air: If your air conditioner fails to turn on at all, there may be a wiring problem, a thermostat malfunction, or a compressor issue.
  • Blowing warm air: If your air conditioner isn’t cooling when it should, there could be a refrigerant leak, a problem with the compressor, or another fault.
  • Issues with air filters:
  • Dirty filter: Air circulation restrictions, decreased effectiveness, ice, and other problems can all be caused by a blocked filter.
  • Age and maintenance history: An older air conditioner or one that has a history of poor maintenance may be more susceptible to malfunctions and expensive repairs.

It’s crucial to get in touch with a licensed HVAC professional for an assessment and any required repairs as soon as you discover any of these problems. A prompt response can guarantee the longevity of your air conditioning system, increase efficiency, and stop additional damage.

If you live in London, Ontario and are currently dealing with a broken air conditioning system, don’t hesitate to reach out to the team at M&K Heating and Air Conditioning for assistance! Our team of experienced and certified HVAC technicians is available 24/7/365 days a year, including after-hours, weekends, and holidays, at no extra cost to homeowners!

What Sets M&K Heating and Air Conditioning Apart?

  • Always Ready – We understand that sometimes, unfortunate surprises happen. That’s why we’re committed to providing central air conditioning repair service at any hour. Call us 24/7, 365 – even on weekends or holidays! You’re guaranteed a response in 60 minutes or less.
  • We Get it Just RightTM –70% of HVAC issues stem from improper installation. We make sure that when we perform a central air conditioning installation, it’s done Just RightTM.
  • 40+ Years of Business – We’ve been servicing the communities of London, St. Thomas, & Mount Brydges areas for over 4 decades. We’ve been able to gather a wealth of knowledge through years of experience providing excellent service and unbiased advice for our neighbours.
  • Technicians You Can Trust – Our experts have G1, G2, 313A & 313D, 308A, ODP, Wardflex, and Supervisor Training Program & IHSA Health and Safety Education Program for Contractor Safety Essentials certifications to help serve you better. Additionally, we make sure all our technicians are Right TimeTM certified – so you know we are always working hard to expand our knowledge.

Our Guarantees

We have the utmost confidence in our work and our people and want to make sure you do, too. That’s why we offer a 2-year guarantee to repair, replace, or refund. Whatever you need until you’re 100% satisfied.

Why Choose Us?


No Loopholes™

Up to 2 years after the installation date we ensure 100% satisfaction or your money back. No LoopholesTM, no problems.


No Hassles™

If your new furnace breaks down within the first 2 years of installment, we’ll fix it for free within 24 hours or give you $1000 for your troubles. No HassleTM, no headache.


Just Right™

We guarantee that any furnace we install will keep you comfortable. If your system isn’t providing a consistent temperature anywhere within 5 years of the installation date, we’ll fix it up to and including replacing the entire system, totally free. No fluctuations, Just RightTM.


We Respect You™

We pride ourselves on always acting with integrity and promise to treat your home with the utmost care and respect. If we don’t meet your expectations in any way, you’ll receive our Five Year System Check-Up PackageTM totally free of charge. We Respect YouTM and your home.

Guaranteed Comfort

We aren’t satisfied until you’re satisfied, guaranteed.

Always Ready

We are always available, 24/7 365 for any HVAC emergency you might have.

Trusted Experience

We have been operating since 1983, which means we have over 40 years of expertise to offer.

Technological Expertise

All of our technicians are Right TimeTM certified and continuously trained to maintain excellence.

Locally Based & Operated

We operate in the London area and have been for over 4 decades, which means we’ve gotten to know our neighbours.

Exceptional Reviews

We maintain a 5-star rating on Google for a reason; we care about our work.

Book a Home HVAC Service with the Pros at M&K Heating and Air Conditioning

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What Homeowners Say About Us

“I recently had an Air Conditioner and Furnace installed by M&K. I called around and talked with several companies, they have the best warranty and were the most knowledgeable when it came to answering my questions. Everything was installed perfectly and up to code in a timely manner. Very happy with the system and service!“​