Indoor air quality · London & St. Thomas

Ventilation, Humidity Control & Air Purification in London, Ontario

Ventilation: HRVs & ERVs

A well-sealed home holds on to stale air, humidity and pollutants. A heat or energy recovery ventilator brings in fresh outdoor air continuously, while recovering the heating or cooling energy you've already paid for.

  • Continuous fresh air exchange
  • Recovers heating and cooling energy
  • Works alongside your furnace and AC
  • HRV or ERV, matched to your home
Ask About Ventilation

The in-home assessment is free.

Humidity control

Too much humidity feeds mould and dust mites. Too little means dry skin, static and cracked woodwork once the furnace comes on. Whole-home humidifiers and dehumidifiers keep every room between 30% and 50% year-round.

  • Every room, not just one
  • Installed in your existing ductwork
  • No tank to empty
  • Humidifiers and dehumidifiers
Ask About Humidity Control

The in-home assessment is free.

Air purification & filtration

A basic 1-inch furnace filter catches large debris, and that's about it. A high-MERV pleated filter or a whole-home air purification system traps the small particles that carry most indoor allergens.

  • High-MERV pleated filters
  • Whole-home air purification
  • Traps dust, pollen and pet dander
  • Works with your furnace and AC
Ask About Air Purification

The in-home assessment is free.

How improving your air works

There's no catalogue to sort through. We come to you, look at your home's ventilation, humidity and filtration, and recommend the right combination.

  1. Get a free in-home assessment

    A technician visits your home at no cost, reviews your current system and sizes the right equipment for your space.

  2. Choose from three packages

    Compare three installed-package options, each with a flexible payment plan, including zero-interest financing.

  3. Have it professionally installed

    Our factory-trained technicians install your new system. Installation is included in every package.

Planned Service Maintenance Program

From same-day service to 24/7 emergency availability, our qualified technicians look after your system all year, so you're never left without heating or cooling.

  • Priority response
  • Same-day service call
  • 10% off repairs
  • Carbon monoxide testing

Financing made easy

No need to wait for new equipment. Apply in minutes on any device. Pre-approvals don't affect your credit score.

  1. Apply

    Complete the application and get a credit decision on the spot.

  2. Make your purchase

    Finish setting up your loan and choose your package.

  3. Repay

    Payments are debited automatically, similar to a credit card.

Why choose My Fireplace?

Trusted installation, repair and maintenance for London & St. Thomas homeowners.

  • Expert HVAC services

    From furnaces to air conditioning, we handle every part of your home's heating and cooling.

  • Certified technicians

    Factory-trained on every brand we install and service.

  • Sized for your home

    We size and install every system to fit your home, not a one-size-fits-all setup.

  • Fair, upfront pricing

    Upfront quotes with no hidden fees, so you know the cost before any work begins.

Indoor air quality guides

View all articles

Why is indoor air quality so important?

Poor indoor air quality from pollen, bacteria, viruses, mold and pet dander can cause illness within the building occupants. Humidity and chemical pollutants can make it worse.

Frequently asked questions

Still have questions? Call (519) 652-0416 or send us a message.

Do I need an HRV or ERV if I already have a furnace and central air?

Yes. A furnace and an air conditioner heat and cool the air that's already inside your home, but they don't bring in fresh air from outside. An HRV or ERV works alongside them to do that.

Does a better furnace filter really help?

Yes, if it's rated highly enough (MERV 11 or higher) and changed regularly. A whole-home air purification system filters more effectively than a standard filter alone.

Doesn't my air conditioner already remove humidity?

Some, but it's designed to control temperature, not humidity. A whole-home dehumidifier keeps moisture in check in every room, and because dry air feels cooler, you can often set the thermostat a few degrees higher in summer.

Is there a charge for a home assessment?

No. Whether you need a new furnace, air conditioning or a water heater evaluation, our team will visit your home at no cost, assess your space and guide you toward the best solution.

Is there a charge for a service inspection?

Yes. The fee depends on the type of equipment and how complex the inspection is. Call our service team at (519) 652-0416, tell us what needs inspecting, and we'll confirm the fee before we book your visit.

Do you provide 24-hour service?

Yes. We offer 24-hour service, 7 days a week. For immediate help, call our priority emergency line at (519) 652-0416.

Other services

  • Furnaces

    Installation, repair and maintenance for every make of furnace, with a free in-home assessment and flexible financing.

  • Air conditioning

    Central air installation, repair and seasonal tune-ups, with a free in-home assessment and flexible financing.

  • Heat pumps

    Heat pumps and ductless mini splits that heat and cool, installed, repaired and maintained, with a free in-home assessment.

  • Boilers

    Boiler systems for radiant and hot-water heating, installed, repaired and maintained, with a free in-home assessment.

  • Water heaters

    Gas and electric water heaters, tank and tankless, installed, repaired and maintained, with a free in-home assessment.

  • Fireplaces

    Gas, wood and electric fireplaces and inserts, with over 125 on display, plus installation, service and repair.

Request a FREE in-home consultation

A free, no-obligation visit to find the right ventilation, humidity control and filtration for your home. We'll get back to you to book a time.