Lennox Air Conditioner – Installation, Replacement & Repair in Mississauga

Certified Technicians for All Lennox Cooling Systems

We install, replace, and repair Lennox® air conditioners across Mississauga. From simple ML series units to ENERGY STAR® rated systems, our certified technicians ensure reliable, quiet cooling for your home while maximizing energy efficiency.

Lennox Air Conditioner Services We Offer in Mississauga

Lennox Air Conditioner Installation

Our team installs Lennox central air conditioners with proper sizing, ductwork setup, and thermostat integration. Every installation is code-compliant and optimized for efficient summer cooling throughout Mississauga homes.

Lennox Air Conditioner Replacement

We replace older or failing Lennox AC units with reliable, entry-level ML series or ENERGY STAR® models. Our team safely removes the old system, installs the new unit, and ensures proper refrigerant charging and airflow for consistent comfort.

Lennox Air Conditioner Repair

From compressor issues to refrigerant leaks or thermostat problems, we repair all Lennox AC models in Mississauga. Using OEM parts and advanced diagnostics, we restore efficient cooling quickly and safely.

Having a HVAC problem? We’ll FIX it today!

We’re available 24/7 to restore your comfort. Call now for same-day service!

24/7 Service

(416) 807-2752

Cooling You Can Trust

Popular Lennox Air Conditioner Models We Service & Install

We install and service Lennox AC models for all types of homes in Mississauga, focusing on simpler, dependable units that provide reliable cooling and energy savings.

Lennox ML14 – Budget-Friendly, Reliable Cooling

Lennox ML16 – ENERGY STAR®, High Efficiency

Lennox ML18 – Enhanced Efficiency & Quiet Operation

HVAC-GROUP

5.0

Based on 216 reviews

review us on

michael wickeler

16:50 06 Aug 25

HVAC GROUP punctual and very efficient at their job. Figured out the problem quickly and fixed the Air conditioner.

Erica Larry

22:45 01 Aug 25

Amazing service from Yuri! We will be using you again in the near future. Thank you again.

Max Peters

15:47 31 Jul 25

Yuri and team quickly diagnosed my A/C issue and had the system back and running, with a very quick response time. Would recommend to anyone.

Dave Neeb

16:03 30 Jul 25

Excellent and thorough, great pricing. Thanks again.

John Hamilton

19:58 25 Jul 25

The HVAC Group did a fantastic job restoring our broken AC . Quality professional workmanship at a fair price .We will definitely call them back next time .

Katie Ogiba

01:17 25 Jun 25

HVAC Group came recommended by a friend when our AC stopped working on a 38 degree day. We had called other services and either couldn't get through or everyone was booked. When I spoke to Yiri he said it was so busy they were booked until next week (which I expected as every other place said the same thing). But he stayed on the phone to ask a few questions about the unit. He was kind, and you can just tell when someone actually cares - he didn't have to talk me through the possible issues etc. He ended up sending someone out that evening who fixed it within 15 minutes. We are so appreciated of the service- both the actual work done and the customer care. Highly recommend. Thank you to both Yiris!

Andre

02:52 19 Jun 25

Great service - fast, knowledgeable, thoughtful, very professional! Helped me well and fast!

thariyor@gmail.com ariyo

22:47 10 Jun 25

HVAC Group responded quickly and had my noisy air conditioner fixed within a day. Their professionalism and customer-first approach really stood out. They go above and beyond—highly recommended!

Daniel Liu

19:04 04 Jun 25

HVAC group has been absolutely fantastic to help us replace our air conditioner. From diagnosing to replacement took only 2 days (since the replacement unit was in stock). This is especially appreciated as the weather was getting hot fast and I have a newborn baby that cries in the heat. Yura is extremely knowledgeable and Yuriy installed the unit professionally with no interruption and minimal noise to our house’s activities. Thank you for your help! HVAC group comes highly recommended and I’ll be reaching out to them for routine maintenance!

Pranav Kumar

22:15 01 Jun 25

Got my thermostat changed and replaced the AC too. The price point is completely trust worthy and the service highly professional!

Olena M

21:03 01 Apr 24

Amazing service, quick and clean replacement of the old water tank, we definitely recommend this team to anyone who would need installation or replacement

Daniel Campana

16:25 23 Mar 24

I had an issue with my Rheem furnace not heating, so I reached out to HVAC-group for assistance. The technician was quick to identify the problem as a faulty flame sensor. The service was prompt, efficient, and ultimately effective. I'm very pleased with their work and would highly recommend their services to anyone facing HVAC issues.

lakhbir phull

16:34 10 Mar 24

Excellent service, immediate response, reasonable price, very happy with their services.

Tina Obersnel

12:18 29 Jan 24

I highly recommend calling HVAC-GROUP for your maintenance and service needs. Yuriy was great. Quick to respond and resolve the issue. I am very happy with the outcome.

VIKKY

19:29 17 Jan 24

I was having problem with a tankless water heater here in edmonton !
I just googled about it and i found his contact number , and i got my problem solved , because i called him and he actually explained everything very clearly and amazingly! Thank you so much
My tankless water heater was showing E110 , i was unable to get that, but he told me that you need clean the air intake filter then i open the panel and did exactly what he told me to do. By that why i got my problem solved!
Thanks buddy

Stan Ivanov

15:37 20 Dec 23

I came from vacation to a broken furnace and a cold house. I called HVAC group late at night and they were able to send someone the next morning.

Technician was very professional, found that I had an igniter problem, had a spare part with him and solved the problem within an hour.

Reasonable pricing and very professional. Highly recommended!!!

Ingrid Turner

07:26 13 Dec 23

Yuri is a true professional and is a very knowledgeable expert about furnaces.
I called him for advice when another well known Hvac company wrongly diagnosed my Trane furnace blower noise and told me I needed to undergo a $1500 repair. Yuri quickly assessed the problem and voila no more blower motor problems. All for $140!!
Thank you Yuri! I highly recommend your service, honesty and expertise.

Anisha Mathews

18:19 29 Sep 23

Yuriy was very informative and helpful in selecting and installing our new furnace. His prices are very reasonable and the work was completed on time. He was also helpful in setting up our thermostat. I highly recommend his services!

Marah Di Nola

21:36 14 Aug 23

Exceptional customer service, immediate response by phone & text, professional workmanship!! Clean respectful, very impressed with the workmanship. Thank you once again. Highly recommend for HVAC, water heater replacement. Answered all my queries without hesitation or reservation. Will definitely 💯 use again!!

Stay Warm, Always

Why Mississauga Homeowners Choose Lennox Air Conditioners

ENERGY STAR® Efficiency

Many Lennox ML models are ENERGY STAR® rated, helping homeowners save on electricity while qualifying for local rebates in Ontario.

Simple, Reliable Cooling for Every Home

ML series units provide dependable, straightforward operation with fewer moving parts for long-term reliability and minimal maintenance.

Quiet Operation

Insulated compressors and sound-dampening cabinets keep operation quiet, perfect for bedrooms, living areas, and home offices.

Easy Thermostat Integration

Lennox ML series units integrate with compatible thermostats, allowing basic programmable control for comfort and energy savings.

Built to Handle Ontario Summers

Rugged construction and durable components make Lennox air conditioners suitable for long, hot, humid summer months in Mississauga.

Qulaity Brands We Work With

From Carrier to Trane – The Best AC Brands We Work With

Why Choose HVAC Group for Lennox Air Conditioner Services in Mississauga

Certified Lennox Technicians

Our team is trained and certified on Lennox cooling systems, ensuring expert installation, repair, and replacement with manufacturer-approved methods.

Same-Day Service Across Mississauga

Fast response for Lennox AC maintenance, installations, replacements, and repairs, minimizing downtime and keeping your home cool during peak summer heat.

Licensed, Insured & Code-Compliant

We follow all Ontario HVAC regulations for safe installation and service, including proper refrigerant handling and electrical compliance.

Transparent Pricing & Local Expertise

No hidden fees. HVAC Group has over 15 years serving Mississauga and the GTA, providing honest quotes and dependable AC service.

Lennox – Trusted Brand for Reliable Cooling

Lennox is a long-standing North American brand, known for building durable, energy-efficient air conditioners. ML series models offer simple, reliable cooling for homes, making them ideal for homeowners seeking consistent performance without complexity.

Lennox History

Founded in 1895 by Dave Lennox in Marshalltown, Iowa, Lennox has grown into a trusted HVAC manufacturer across North America. Their cooling systems are designed for reliability, efficiency, and quiet operation, ideal for Canadian climates.

Lennox Philosophy

Build durable, reliable HVAC systems
Focus on energy efficiency with SEER-rated performance
Simplify operation with dependable single-stage units
Maintain environmentally responsible manufacturing
Back systems with strong warranties and support

Comfort Made Easy

Real Results from HVAC-Group Inc

Quality First HVAC Services Just A Call Away!

Business Hours
Monday to Friday: 8 a.m.–9 p.m.
Saturday and Sunday: 9 a.m.–2 p.m.

Area We Serve in Mississauga

HVAC-Group Inc. has been servicing Mississauga areas for more than 20 year.

L5G, L5H

L5M, L5N

L5L, L5M

L5J, L5K

L5M

L4T, L5B

L4T, L4W

L5H

L4X, L4Y, L5A

L5N

L5E

L5K

L5N, L5P

L5M

L5C

Summer's Calling! Get Our Exclusive AC Installation Deals

Frequently Asked Questions

How much does it cost to install a Lennox air conditioner in Mississauga?

Lennox ML series installation typically ranges from $3,470 to $6,730+, depending on size, model, and ductwork. We provide upfront pricing.

Are Lennox AC units reliable for Ontario summers?

Yes. ML series units are built for long-lasting performance in hot and humid conditions, providing dependable cooling for Mississauga homes.

Do you service all Lennox AC models?

Absolutely. We repair, replace, and maintain all Lennox air conditioners, including ML, EL, and SL series units, using OEM parts and certified service methods.

Can Lennox air conditioners work with smart thermostats?

Yes. ML series units can integrate with compatible thermostats for basic temperature control and energy efficiency.

How long does a Lennox AC typically last?

With proper installation and annual maintenance, Lennox air conditioners can last 15–20 years. Regular servicing helps maintain efficiency and reliability.