Get Rid of Stale Air With a Heat Recovery Ventilator

A heat recovery ventilator keeps stale air away by cycling in fresh outdoor air into your home.

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Air Quality Experts Serving the London, St. Thomas, & Mount Brydges Areas

What Sets Us Apart

When you need us most, we are available to help. You can call us 24 hours a day, 7 days a week, 365 days a year, even on evenings, weekends, or holidays! After-hours calls are still guaranteed a response within 60 minutes.

When we get stuff done, we get it done right – guaranteed. That’s why we have a Just RightTM guarantee, so you know when you call on M&K, we won’t quit until you’re satisfied.

We’ve been doing what we do for over 35 years, so you know we have a wealth of knowledge we can pull from for all kinds of situations. No matter what the problem, we have it well in hand.

Our ratings speak for themselves. Continuous 5-star Google reviews mean that we provide service you can rely on. Don’t hesitate to call us today with any questions or concerns!

What Customers Say

“Absolutely no complaints, head office communicates well and the tech was professional (and quite safe for corona time) and explaining our options well.”

- Peter B.

“Service was fast and on time. Technician friendly and polite.”

- Graham H.

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Heating & Cooling in London, St. Thomas, Mount Brydges, & Surrounding Area

M&K has been providing London and the surrounding areas with dependable heating and cooling services since 1983.

Now, as a part of the Right TimeTM Heating & Air Conditioning family, we can combine our impeccable expertise with more services, locations, and support. We’re here to help you find the best solutions for your home and lifestyle, no matter what your needs.

Frequently Asked Questions

Your HRV will draw in fresh outdoor air, filter it, and distribute it throughout your house using your ducts or an air conditioning system. This process helps keep your indoor air from becoming stale.

Depending on use, you should have your HRV serviced either twice per year or annually. You may be able to perform basic maintenance yourself, but we always recommend calling one of our expert technicians so we can catch any issues and make any necessary adjustments.

HRV’s can reduce odours and pollutants by continually pulling fresh air in from outside, filtering it, and pumping it throughout your home.

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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Servicing Homes for Over 35 Years

M&K has been keeping homes safe and comfortable in the London area since 1983.

35 Years
In Business
Homes Serviced
Star Rating
On Google Reviews

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.

24/7 365 SERVICE

226-721-8501 Request a Quote
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