Pro Business

M & K Heating and Air Conditioning

London HVAC Companies
Ranked #12 in London | Grade C+
4.60 (1647 reviews)

M & K Heating and Air Conditioning

Local HVAC contractor handling installs, repairs, and maintenance for heating and cooling systems in London, ON.

Why Homeowners Choose This Business

Responsive scheduling, clear explanations before work begins, and careful, tidy installations are frequently mentioned by local customers. Open 24/7, they handle both urgent fixes and planned upgrades with attention to safety and code.

Service Area

London, ON and surrounding communities.


How This Business Compares

A quick local comparison based on ranking, review strength, and market visibility.
  • Has an established presence within this local market.

Trust Signals

Emergency Service - Open 24/7 for service calls.

Services Covered

  Plumbing Services
  Renovation Services
  Service
  Furnace Installation
  Residential Service
  Furnace Repair
  Maintenance
  Air Conditioner Installation
  Installations
  Air Conditioner Repair
  Repairs
  Heat pump installation
  heat pump repair
  HVAC Maintenance
  Gas Line Hookup
  Thermostat Installation
  Indoor Air Quality
  Ductless Mini-Split
  HVAC Diagnostics

Heating and cooling installs, replacements, repairs, and maintenance for furnaces, air conditioners, and heat pumps. Gas line and gas appliance hookup where permitted. Thermostat upgrades and system diagnostics. Indoor air quality add-ons upon request.


Recent Reviews

4.60

(Based on 1647 reviews)

Reviews highlight fast scheduling, with several noting same-day or prompt appointments. Installation feedback frequently mentions professionalism, cleanliness, and staying within estimated timelines. Communication from sales to technicians is often described as clear and courteous. A small number of comments mention concerns unrelated to in-home service experience.

Needed hookup for gas stove. Called M&K and got same day appointment. Ahmad was very thorough with assessing the situation. Discovered that existing hookup didn't meet code. Ahmad rectified the hookup and was very thorough with safety in the connection. He explained the maintenance program that they have. I think I will enroll in it. Thanks Ahmad.

I was out with my infant daughter when I saw an MK van pull into the pregnant woman and young family spots, taking up 2 of the 3 spots. A single man got out to do some shopping. Why is this single man taking up 2/3 spots for people and families who strongly benefit from being able to use those spots and get their babies inside quickly? Anyways, just thought it was uncool ??

I just had a new furnace installed by Dan from M&K. The installation was professional, courteous, within the estimated time and Dan cleaned up when the job was done. I would welcome him back as a tech. Dealing with Kyle for sales was a pleasant experience. Also a nod to tech Yasen for the previous inspection. The furnace itself is working great and I can already notice a positive difference in my home comfort compared to the old one. This new furnace feels like a good investment in my home.

From our first visit with Shane to our experience today with the installation technicians, we say thank you for the professionalism with everyone at M&K. Our technicians John and Issac were knowledgeable and just great guys. Fantastic service today. We chose M&K because friends recommended them and we are very pleased. Great job guys! Highly recommend this company and this team was awesome.

Dan and Enes just completed an installation of a new air conditioner for us. They arrived on time, were very polite and were very tidy with their workmanship. They provided excellent options and kept me in the loop throughout the process. Shane was our sales representative and his follow up and attention to detail is greatly appreciated. I would highly recommend this company.

*** As an update to this review- I was offered and took advantage of an option for a no cost, 90 day payment option. I provided a post dated cheque for it. Upon checking my account the next business day I found that they had put the cheque through, causing an overdraft. I have called the office but they only have a call centre and so far after several hours, no response. Be very cautious, the workmanship appears fine but a company that makes negligent errors causing financial hardship and then doesn’t immediately correct them or at least communicate, raises a serious concern.


Special Offers

Emergency Service

Emergency service may be available for urgent issues.


Frequently Asked Questions

They work on furnaces, air conditioners, and heat pumps, including replacements and new installs. Service includes diagnostics, repairs, and routine maintenance to keep systems efficient and reliable.

Yes, listed hours indicate they are open 24/7. You can call anytime to request urgent service or schedule a visit.

Reviews indicate they handle gas line and appliance hookups and ensure work meets code. Availability may depend on site conditions and local regulations.

Customer feedback often notes timely scheduling and installs completed within the estimated window. Actual timing depends on equipment availability and site specifics.

Some reviews mention a maintenance program being offered. Details can vary, so it’s best to call and ask about current plan options and pricing.
 Verified Listing

Opening Hours


  • Monday Open 24 hours
  • Tuesday Open 24 hours
  • Wednesday Open 24 hours
  • Thursday Open 24 hours
  • Friday Open 24 hours
  • Saturday Open 24 hours
  • Sunday Open 24 hours

Request Service


Business Details


Business Rating
4.60 (1647 reviews) Pro Business
Address
28 Adelaide St S, London, ON N5Z 3K2, Canada, London, ON N5Z 3K2, CA
Business Type
general_contractor

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