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CM Expert

Fast Air Conditioner Repair in Richmond Hill

Is your air conditioner not keeping up with the rising temperatures? Don’t sweat it! We offer prompt and professional AC repairs at competitive rates to get your home comfortable again.


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Same-Day Service

Our technicians are fully committed to arriving at your home quickly and resolving any problems efficiently.

Advanced Diagnostics

We don't just fix the problem, we prevent it from coming back. Our experts use best tools to pinpoint the exact cause.

Service Warranty

We back our repairs with a 1-year warranty, so you can be confident your AC will keep you cool all season long.

Cost Upfront

We believe in transparency. That's why you'll receive a clear and detailed quote outlining the repair cost before any work begins.

Prompt Response & Expert Solutions

Our skilled technicians are available today to diagnose and fix your AC problems quickly and efficiently.

HVAC Champions

Our technicians aren't just skilled, they're champions of HVAC services

Why Choose CM Expert For HVAC Services in Richmond Hill


Positive reviews on:
Experienced Technicians

With decades of experience maintaining, repairing and installing air conditioning systems, you can trust CM Experts’ technicians to service your unit. We have intensive training programs to ensure our staff is always up-to-date with the latest technical skills.

Fast and Reliable Service:

At CM Experts, quick response is a point of pride. Our experienced AC repair technicians are fully stocked with parts and tools and are always standing by ready to be onsite at your property within 2 hours of your call.

Affordable Rates:

You’ll find our pricing for both repairs and regular maintenance plans to be very reasonable, allowing you peace of mind your system issues are being handled without breaking the bank. It’s just one more reason CM Expert is the sensible choice for all your cooling needs


What Our Clients Are Saying about us

Our HVAC Company Reviews

Certified Mechanical

4.5Out of 5 stars

Overall rating out of 151 Google reviews

Amazing! Professional and quick service!

Fleming Viegas
3 weeks ago

a great job done on time

Brian Edwards
3 weeks ago

Great service and helpful technician.

David Duncan
3 weeks ago

Very reliable

Raul was very personable and professional. He called in advance to confirm and came back as promised the next day to fix our dryer after his initial diagnosis.

Jason Chan
2 months ago

Price was the highest of all contractors I asked for a quote from. Not at all competitive with other companies for the same product and service. Definitely recommend getting multiple quotes from different contractors before selecting a company. Edit: to answer below, the reason for one star is because the job was not to repair something. It was to replace. All the other contractors were quoting for the same replacement. The actual price will not be lower than your quote will it? Price gouging is not a good business model

Opulent Kitchen
2 months ago

Technician was very helpful and gave all the options to best help me

Mark McDonald
2 months ago

Had a great experience with the technician that came to my laundromat. Very hard working and professional and went out of his way to deliver amazing service for me. Ronaldo is great. Thanks guys. Will definitely use them again.

Sol Omon
2 years ago

Our washing machine was rattling and making a lot of noice so we did a google search for repair service. We found out during this search that Certified Mechanical has the designation of Google Guarantee which means (Businesses with the 'Google guaranteed' badge are screened, and are guaranteed to get the job done right or your money back with a lifetime cap of $2,000. ) Anthony the owner of the establishment sent a repair technician and the charged us for $99 to see visit out place and diagnose the problem. The repair was going to be costly so we decided to purchase a new washer and dryer. We called Anthony to provide us with quotes of 3 brands and see which one was in stock and we decided to proceed with the brand that was available and in stock. (This was not our 1st choice but we had did not want to wait 2 weeks plus) We understand the supply chain issues and low inventory and wanted the delivery and install to be done within 3 days. The only thing that I would say is that Certified Mechanical had to outsource the installation of the machines to another trade but we are happy with Certified Mechanical that the trades assigned to install the machines did a good job. Thank you Google for screening the vendors as it sure helps in make a decision and thank you for the $2000 guarantee.

Amory Erheim
3 years ago

I own a triplex home in Toronto that I rent. Anthony visits the property annually to inspect the system. My experience he is honest, don’t pull your leg or wallet, he is professional & don’t waste your time. Proficient & knows his trade.

Emilio Farouse
9 months ago

Ronnie's definitely a magician, in the best way possible. I work in the property management field and had an issue with a high end commercial dishwasher. Ronnie was on time, professional and informative. He was able to not only fix our machine but leave it functioning better than it was pre breakdown. Keep guys like this around, your sanity and your wallet will thank you.

Ella Lightstone
5 months ago

Our Mechanic showed up on time, patiently explained the issues. fixed it quickly, and even helped move things back into place. Kind and thorough, went above and beyond!

Anita Kumari
8 months ago

Mr Omari went over and above helping me fix my fridge. He was helpful and provided amazing guidance and advice for an easy fix on my fridge. It's hard finding honest and knowledgeable repair people. Thank you again!

Leila Aquino
a year ago

I called Certified Mechanical and they sent Anthony to fix our broken furnace. It was too cold and we can't sleep. Thanks to Certified Mechanical, they repair our furnace right away. Anthony is really knowledgeable, and reliable. Sincere and explains the necessary work. Highly recommended!!!!

Tana Turner
2 months ago

Thank you for your excellent service as always. Ronnie is so knowledgeable and good to work with. Always a pleasure!

2 years ago

Absolutely happy with the service that was provided. It was professional, quick, and honest. Anthony was able to come and access the problem with my fridge and was able to fix it within 15 min. Whoever requires any kind of repair, Anthony and his company is the company you need to contact. Unfortunately I previously had hired another company and they simply scammed me and didn't fix anything. Disappointed that I didn't find Anthony sooner. I would give more than 5 stars if I could.

Michelle Jamieson
6 months ago

Responsive, professional service. Anthony did a great job on our beverage fridge repair.

Melanie Minshull
2 years ago

Raul was Amazing!! He was able to identify the problem easily and then let me know the plan to correct. He was on time and communicated everything clearly. The repair was completed and saved me replacing the dryer!!! I will definitely be calling back if I ever need help again.

Our Comprehensive AC Repair Services

At CM Experts, our customers always come first. We understand that having an air conditioning issue in the heat of summer is the last thing anyone wants to deal with. That is why we aim to resolve any customer issues as fast as possible.

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We Will Deal With All Your AC Issues

Our experts can fix any air conditioner problems


Richmond Hill Reliable Air Conditioner Repair

Finding yourself without a functioning air conditioning unit during a hot summer day is unpleasant. At CM Expert, we strive to provide fast AC repair Richmond Hill services so you can get your system up and running quickly. Our experienced technicians are standing by to handle any issues with your AC unit same day. We aim to have your air conditioning system inspected, diagnosed and repaired as rapidly as possible to restore comfort to your home.

air conditioner repair in Richmond Hill
Richmond Hill and searching for “AC Repairs near me”?
AInstead of wasting time searching online every time your AC acts up, trust that CM Expert is here when you need us. As your nearby trusted repair experts serving the York Region, we aim to arrive quickly whenever overheated. Put an end to any air conditioner issues and choose your local repair partner!
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We Cover all of the Greater Toronto Area

Emergency AC Repair

When your air conditioning unit stops working unexpectedly on a scorching hot day, it’s reassuring to have a reputable company like CM Expert ready to respond promptly. Our technicians are available 24/7 all year round to handle any HVAC services in Richmond Hill.

AC Unit Repairs & Maintenance

We thoroughly inspect your entire air conditioning system to spot issues impeding optimal performance. Whether you need repairs for faulty parts or seasonal maintenance, we ensure your cooling unit stays in top condition through our maintenance program. You can depend on us to extend the life of your air conditioner.

AC Compressor Repair Services

One of the most crucial components in an air conditioner is the compressor, which circulates refrigerant through the system. When the compressor malfunctions, it can render the entire cooling unit useless during hot weather until replaced or repaired. As specialist AC compressor repair and installation technicians in Richmond Hill, our team has extensive experience diagnosing and fixing all issues with compressors.

Fixing refrigerant leaks

Over time, normal wear and tear can sometimes cause small refrigerant leaks to develop within air conditioner systems. Left unchecked, these leaks will quickly lead to the refrigerant level dropping to a point where effective cooling is no longer possible. Our team takes the time to thoroughly inspect for signs of refrigerant loss as a standard part of any service we provide.

We will repair all your AC Issues

Dealing with any unexpected issues that arise in your air conditioning unit can leave you feeling stressed. At CM Expert, we are fully dedicated to resolving all cooling unit issues to your satisfaction. Whether you need repairs for common problems such as thermostat malfunctions or more complex quality issues like compressor failures, our technicians possess the skills and determination to diagnose and fix the source of any troubles. 

You have our commitment that we will address each service request and identify the root cause of concerns until your unit is performing at optimal levels again. Choosing us means peace of mind knowing we will work diligently to remedy any issue and restore comfortable, efficient cooling to your home.

AC repair in Richmond Hill

Weak airflow

Dealing with insufficiently cooled air circulating through your home can be frustrating, especially during heat waves. Weak airflow problems are a common complaint our technicians receive. Our team has the expertise to properly diagnose the root cause, whether it be a blocked condensate drain, dirty air filters restricting airflow or an evaporation coil issue disrupting temperature. 

We thoroughly inspect all aspects that could be diminishing comfortable breezes. You can count on CM Expert to skillfully restore optimal airflow circulation with quality repairs tailored to the unique needs of your system. Choose us for quick resolution of any airflow issues leaving your living areas feeling stale.

Electrical Problems

Nothing can disrupt your ability to cool down like electrical problems interfering with your air conditioner functioning properly. Whether the issue lies with faulty thermostat wiring or a short somewhere in the control board, electrical faults can be tricky to isolate. Our licensed technicians have specialized training and tools to carefully diagnose any electrical challenges powering your cooling system.

 You can trust we will thoroughly inspect connections and test components with precision until we pinpoint the glitch and remedy it quickly. Avoid further aggravation and expensive repairs down the road by counting on CM Expert to properly solve any electrical complications right the first time.

Thermostat Issues

Having problems with your thermostat controlling your air conditioning properly is a hassle no one wants to deal with. Strange thermostat behaviors like never reaching the set temperature or constantly turning the unit on and off can mean serious discomfort and wasted energy. The technicians at CM Expert are fully certified in all types of thermostat controls. 

You can count on us to rapidly diagnose wiring challenges, malfunctioning sensors or circuit board errors affecting thermostat performance. Leave thermostat issues in our highly skilled hands, and we will have your cooling precisely regulated to your ideal comfort levels once again using our expertise in repairs. Choose us for professional resolution of any thermostat troubles.

Clogged drain lines

Having stagnant, overflowing condensate drainage can lead to costly water damage or mold issues in your home. Clogged drain lines are a common air conditioning problem that CM Experts’ technicians regularly resolve. We thoroughly inspect the entire draining system, from the pan to the exterior exit, to find any blockages restricting proper flow. 

We will fully clear line congestions using specialised tools and techniques the first time. You can count on our team to expertly examine and remedy drain line obstructions restoring hassle-free moisture removal. For effective handling of clogs slowing your drainage, call on our extensive experience at CM Expert.

How much does it cost to repair an air conditioner in Richmond Hill?

A common concern for homeowners is the potential cost to repair a broken air conditioner. The price to remedy cooling issues truly depends on the specifics of your unit and the problem at hand. Some AC repair costs in Richmond Hill may range from a few hundred dollars for minor troubles like thermostat replacements up to several thousand dollars for major system overhauls or replacement parts. 

Our certified technicians will always provide a thorough diagnosis free of charge. We want you to have full transparency on the cause and fair options for resolution. You have our commitment to professional honesty and reasonably priced services to help you determine the best course for keeping your home cool this season.


A few common issues can cause an air conditioner to run but fail to cool a home properly. One possibility is a refrigerant leak. Over time, the refrigerant will escape from small cracks or holes in the piping. Without enough refrigerant, the air conditioner may power on as normal but won’t be able to achieve the temperature drop needed. 

Another potential cause is dirty or clogged air filters that are restricting airflow. This prevents the unit from efficiently circulating cool air throughout your home. It could also be a problem with the condenser coils, which may be dirty or damaged and unable to transfer heat outside.

We are fully licensed and insured to work on all major brands in Richmond Hill. Through our comprehensive inspection and testing process, we’ll quickly identify if a refrigerant leak, filter, coil or other component needs replacement.

It depends on several factors:

The age and condition of the unit, the components needing replacement, and the projected repair costs all play a role in making this decision. As an expert HVAC company serving Richmond Hill for over 10 years, we can perform a thorough inspection and diagnosis to determine the extent of the issues. Many air conditioners can be kept running efficiently with simple repairs like refrigerant recharging or replacing filters. However, if major internal components are near the end of their life expectancy, it may make more financial sense to upgrade.

Our technicians will provide you with repair quotes versus replacement estimates so you can make the choice best suited to your budget and needs. We can also advise on the energy savings that may come from installing a new, higher-efficiency model.

While many homeowners may be tempted to fix smaller air conditioning issues themselves, there are several reasons we recommend calling a professional. The refrigerant system requires specialized tools, gauges and licensing to service safely. Handling refrigerant improperly could damage the ozone layer and result in a costly fine.

Some DIY tasks like replacing filters, belts or thermostats seem simple, but it takes extensive training to properly diagnose underlying electrical or mechanical faults. Improper diagnosis could cause further damage or waste money fixing the wrong part. Reputable companies like ours also have access to genuine replacement components guaranteed to meet manufacturer specifications.

Here are some of the most common issues our technicians encounter with air conditioners in Richmond Hill:


  • Refrigerant leak: Over time, small cracks or holes can develop in the refrigerant lines, allowing the coolant to escape. Without enough refrigerant, the unit cannot properly cool the air.


  • Condenser coil/evaporator coil issues: The coils can become dirty, damaged or corroded, restricting airflow and reducing heat transfer capabilities. This prevents efficient cooling.


  • Capacitor failure: The capacitor is an important electrical component that helps regulate the flow of power. A bad capacitor often results in the fan or compressor not working properly.


  • Dirty or clogged air filter: A dirty filter impedes airflow and puts unnecessary strain on the motor. Filters should be changed at least every 30 days or as recommended.


  • Broken or worn components: Parts like the compressor, fan motor or thermostat may fail after several years of use. Replacement is needed for reliable operation.


The technicians in Richmond Hill have the experience and equipment to accurately diagnose and resolve these and other issues. Don’t hesitate to contact us if your system needs repair – we can have you feeling cool again in no time!

When an air conditioner stops working properly, it’s important to first perform some basic checks before calling in a technician, here are a few things we recommend homeowners evaluate themselves:


  • Check the thermostat setting – Confirm it’s set to “cool” and the desired temperature is below the current room temperature.
  • Inspect the air filter – Dirty filters restrict airflow and reduce efficiency. Replace if dirty.
  • Check the circuit breaker/fuse – An overload or tripped breaker/fuse can cause the unit to shut off.
  • Listen for abnormal noises – Grinding or squealing sounds could indicate worn parts that need lubrication or replacement.
  • Ensure unobstructed airflow – Remove any furniture/objects blocking vents or outdoor unit. Clear away snow/leaves from outside coils.
  • Confirm proper power supply – If the unit won’t start, check that it’s plugged in securely or getting power from the breaker.


If performing these checks doesn’t resolve the problem, it’s best to schedule an appointment with our licensed team. We have the training and tools to thoroughly diagnose electrical, mechanical or refrigerant issues.

There are a few signs that can indicate an AC may be low on refrigerant (freon) and need to be recharged:


  • Inconsistent or intermittent cooling – The unit may begin to cool less effectively as freon levels decrease.
  • Higher operating costs – A low freon system has to work harder, increasing utility bills.
  • Frost or ice buildup early in the cooling cycle – This happens when the freon isn’t cold enough to properly dehumidify and cool the air.
  • Longer cooling times – It takes the AC longer to reach the set temperature when freon is low.
  • Abnormal sounds – You may notice new noises from the compressor as it strains without optimal pressure from the freon.


Our licensed technicians at CM Expert can verify refrigerant levels using specialized gauges and dyes. A leak detection inspection is also part of our service. An accredited company like ours will recharge your system safely using approved methods and materials. Don’t risk further damage by delaying freon service. Call us for trusted AC repair in Richmond Hill.

The average lifespan of an air conditioner can vary depending on the brand, model, usage, and environmental factors, but most AC units will last between 10-15 years when properly maintained. Here are a few key points about air conditioner longevity:


  • Window units may only last 5-8 years due to vibration stressing internal components more. Central AC units installed in the attic can survive 15-20 years.
  • Proper maintenance like annual cleaning and tune-ups can extend the life of an AC unit by 2-5 years. This prevents premature wear from dirt/debris.
  • Heavy usage during long, hot summers will decrease the lifespan versus more moderate climates with less runtime.
  • Higher-quality commercial-grade systems installed by professionals can function reliably for 15-25 years with care.
  • Replacing old filters monthly and fixing minor issues as soon as they arise prevents escalation into larger repairs down the road.

Here are a few factors to consider when deciding whether to repair or replace an aging air conditioner in Richmond Hill:


Age & Condition – Units 10+ years old with frequent repairs may be at the end of their lifespan. Newer models are more efficient.


Repair Costs – Extensive repairs exceeding 60% of replacement cost generally don’t make financial sense long-term.


Efficiency – Older units use significantly more electricity. Upgrading can lower bills. Rebates may offset new purchases.


Components – If the compressor or other major internal parts need replacing, it’s usually better to install a new system.


Warranty – Repairs only cover replaced components for 90 days versus a full warranty with new equipment.


Capacity – An oversized/undersized unit won’t cool properly. Replacing ensures the correct size for your home.


Our licensed technicians will thoroughly inspect and assess the condition of your existing AC. We’ll provide repair estimates versus replacement costs so you can make an informed choice.

Talk to an Expert Now!