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Furnace Installation, Repair & Maintenance in London

M&K Heating and Air Conditioning are your local fast & friendly furnace experts.

Serving the London area since 1983, our team of qualifiedtrusted heating technicians are here to help you stay warm all winter long – whatever your home heating needs, we’re at your service 24/7/365. 

Whether you need a full setup & installation, a quick repair, a standard monthly maintenance service, or just have some simple questions about how to maximize your home comfort – we’re just a click or a phone call away.

Our London Home Heating Services

Furnace Replacement & Installation 

Time to replace your furnace and install a brand new central unit?  

We make home heating installation no sweat for you – and we mean that.

Our London technicians will handle all the heavy lifting and ensure that your new home heating system is set up for your full comfort.  

They’ll be on hand to address any questions or concerns you have about your new furnace throughout the installation process, and will make sure you’ve got all the information you need to follow up with a Home Comfort Advisor. 

Learn more about our furnace replacement & installation services for London homeowners.

Furnace Repairs

Furnace on the fritz?

We fix home heating systems, 24/7/365. 

M&K provides London homeowners with reliable, round-the-clock residential repair services for your continued home comfort.  

We also offer emergency and last minute home appointments for urgent furnace issues. 

Common problems with home heating systems include ignition or pilot light issues, broken thermostat, lack of heat, excessive noise or a complete lack of power.  

Any of these can change your home’s atmosphere from warm & cozy to chilly & teeth-chattering – the last thing you want in a London winter.  

No matter what or when the problem is, our fast & friendly technicians will be on hand to help restore your home comfort as quickly as possible. 

Learn more about our furnace repair services.

Furnace Maintenance & Protection Plans 

Want to keep your furnace running efficiently & cost-effectively all winter long?  

We offer affordable maintenance & protection plans. 

Regular maintenance will help your furnace working at peak operating levels throughout the cold months, and will also help prevent major issues that lead to costly repairs down the road. 

Having your furnace looked at regularly by the expert technicians at M&K means more comfort, less headaches and can lead to a fuller wallet all winter long. 

Learn more about our furnace maintenance & protection plans.

Home Furnace Buying Guide 

Time to buy a new home furnace, but you’re not sure where to start?

We’ve got answers to your questions about how to find the right home heating system. 

Our furnace buying guide offers expert information on costs, energy efficiency, installation information, and more.  

Get answers to your questions about investing in a new home furnace and know before you buy!

Read our home furnace buying guide.

Call or Contact Us Online Today 

Call us at 226-777-0008 or fill out our fast online form to speak to a home comfort advisor about your residential furnace needs in London today! 

What Sets Us Apart

At M&K, your needs are our top priority. We are available 24 hours a day, 7 days a week, 365 days of the year – yes, even on holidays! If you reach out to us, even outside of regular business hours, you can expect a response within 60 minutes – guaranteed!

Our team undergoes G1, G2, 313A & 313D, 308A, ODP, Wardflex, and Supervisor Training Programs and IHSA Health and the Safety Education Programs for Contractor Safety Essentials certifications, and all our technicians are Right TimeTM certified. We undergo continuous training to ensure we can provide you with the best possible service.

M&K has been serving families in the London, St. Thomas, Mount Brydges, and surrounding communities since 1983, so we’ve gotten to know our neighbours and have experience fixing their problems. Our expert knowledge is built on 3 decades of experience.

We Respect YouTM, so we aren’t finished until the job is done, and it’s done right. You can feel comfortable knowing that we want to make sure everything is done correctly the first time. We aren’t satisfied until you’re satisfied.

Why Choose M&K For Your Home Heating Needs?

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 LoopholesTM

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


No HasslesTM

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 RightTM

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 YouTM

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.

Service Around The Clock. Call Us Today



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Guaranteed Comfort

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

Trusted Experience

We have been operating since 1983, which means we have over 35 years of expertise to offer.

Community Focused

We operate in the London area and have been for over 3 decades, which means we’ve gotten to know our neighbours.

Always Ready

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

Technological Expertise

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

Exceptional Reviews

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

Contact Us For a Quote on HVAC services in London & the surrounding area.

24/7 365 SERVICE

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