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Air Conditioner Not Working? We Fix It Same Day

Ontario’s Certified AC Repair Experts

24/7 Emergency AC Repair Service

Genuine OEM Replacement Parts

Up-Front Pricing - No Hidden Fees

Same-Day Diagnostics & Fix

Dependable repairs that restore comfort-quickly and professionally.
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Awards and Accreditations

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Fast & Reliable AC Repair Services by
LG Home Comfort

LG Home Comfort offers AC repair services focused on accurate diagnostics, safe repair work, and clear communication. Our technicians fix the home air conditioning systems to restore cooling performance when issues interrupt comfort.

What’s Included in AC Repair Service?

AC repair focuses on identifying the cause of the cooling issue and correcting faulty components.
Typical AC repair service includes:
  • System diagnostics to identify the source of the cooling problem
  • Inspection of electrical, mechanical, and airflow-related components
  • Thermostat operation and system response check
  • Identification of failed or malfunctioning parts
  • Clear explanation of the required repair before work begins
  • Repair or replacement of applicable components
  • System testing after repair to confirm proper cooling
  • Basic safety checks following completed repair work
These steps help ensure the system is restored to proper working condition.

AC Not Working? Common AC Problems That Need Repair

Some air conditioning issues go beyond routine maintenance and usually indicate a system fault that needs professional repair.

AC is running but not cooling

The system turns on, but the air coming from vents does not feel cool. This often points to a problem affecting the cooling cycle rather than airflow or filters.

Warm air coming from vents

Warm air instead of cool air usually means the AC is not able to remove heat properly. This can happen when a key cooling component is not working as intended.

AC Not Turning On or Off

If the AC does not start or keeps turning off, it may be responding to a control, electrical, or safety issue. These problems typically require diagnostic testing and repair.

Unusual noises during operation

Banging, buzzing, grinding, or rattling sounds can signal internal component issues. New or louder noises should be checked to prevent further system damage.

Weak airflow or uneven cooling

Poor airflow or rooms cooling at different rates can indicate external problems. A License technician can determine the core root of the problem.

Error codes or warning indicators

Modern AC systems display error codes when a fault is detected. These codes help technicians identify the issue but usually require professional repair to resolve.
These situations usually require AC repair rather than routine maintenance, as they involve system components that are no longer operating properly.
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AC Services We Offer to Improve Comfort & Efficiency in Your Home

AC Installation

LG Home Comfort’s licensed technicians ensure your air conditioner is correctly sized and professionally installed – so it cools your home efficiently and reliably all summer long.

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AC Maintenance

Regular maintenance by LG Home Comfort’s certified technicians keeps your air conditioner running efficiently, extends its lifespan, and prevents unexpected breakdowns when you need it most.
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Expert Air Conditioner Installation Services LG Home Comfort

Why Choose LG Home Comfort for AC Repair

LG Home Comfort provides AC repair services built around trained technicians, timely response, and clear service processes.

Certified HVAC technicians

Licensed professionals trained to diagnose and repair residential air conditioning systems.

Support in 24-hour

Technicians respond within 24 hours to address AC repair requests.

Emergency repair availability

Support when cooling stops unexpectedly during hot weather.

Clear repair process

Issues and repair steps are explained before work begins.

Warranty-covered repairs

Repairs completed according to applicable warranty terms and manufacturer guidelines.

  • Ontario's Best

24/7 Emergency Service

Licensed technicians available anytime
1-866-438-5442

Certified HVAC technicians

Licensed professionals trained to diagnose and repair residential air conditioning systems.

Support in 24-hour

Technicians respond within 24 hours to address AC repair requests.

Emergency repair availability

Support when cooling stops unexpectedly during hot weather.

Clear repair process

Issues and repair steps are explained before work begins.

Warranty-covered repairs

Repairs completed according to applicable warranty terms and manufacturer guidelines.

  • Ontario's Best

24/7 Emergency Service

Licensed technicians available anytime
1-866-438-5442
Get a Free Quote

What Our Customers Say

Our AC stopped cooling during a warm week, and Daniel identified the issue quickly. He had it running again faster than expected.
Olivia T.

Verified Customer

Windsor, ON
Ryan explained what was causing the airflow issue and fixed it during the same visit. Professional and easy to talk to.
Kevin B.

Verified Customer

Woodstock, ON
Jason was punctual, diagnosed the issue accurately, and made sure the system was cooling properly before leaving.
Steven G.

Verified Customer

Sudbury, ON

Frequently Asked Questions

When Should I Call For AC Repair

You should contact AC repair services if your system is not cooling, blowing warm air, shutting off repeatedly, making unusual noises, or displaying error codes. Any change in normal operation that affects comfort should be checked promptly to avoid further issues.

Yes, LG Home Comfort offers emergency AC repair. Emergency service is intended for urgent issues that affect comfort during hot weather. Availability depends on scheduling and service demand at the time. Homeowners are encouraged to contact customer support as soon as an issue occurs so the situation can be reviewed and the fastest available service option can be arranged.

Most AC repairs are completed within one to three hours, depending on the type of issue and part availability. Simple problems are often resolved quickly, while more involved repairs may require additional time. 

  • Minor issues – Often fixed within a short visit 
  • Part-related repairs – May take longer if components are needed 
  • Clear timelines provided – Repair time explained after diagnosis 

Once the system is inspected, technicians explain the issue and confirm the expected repair duration before work begins, so homeowners know what to expect 

AC repair costs can vary depending on the issue and the parts involved. For air conditioners purchased from LG Home Comfort, most repairs are covered at no cost during the parts and warranty period, which may include parts and service depending on the system and coverage terms. This helps reduce unexpected repair expenses.

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Experts You Can Trust

24/7 Emergency Services

Always available when you need us

Locally owned and operated

Serving local communities

Almost 5⭐

Google and HomeStars Reviews

Trusted by 100000+ homeowners!

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Terms and Conditions

  • Once an initial service has been completed, the customer will be on a one-year commitment
  • After the initial 12 months, the contract will be renewed on a month-to-month cadence
  • If a service is completed for the next year, it automatically renews the commitment for an additional year
  • Customers can cancel at any time after the 12-month initial commitment as long as the following year’s service has not been completed.
  • Customers need to provide 30 days written notice in order to cancel their plan