Indoor Air Quality Services

Expert Heating, Cooling & Air Quality Services in Northern VA

(703) 483-2400

Breathe Better with Our Air Quality Solutions

Cleaner Air Starts with the Right System

Indoor air can be up to five times more polluted than outdoor air, and your HVAC system plays a major role in what your family breathes every day. From dust and pollen to mold, bacteria, and pet dander, airborne particles circulate through your vents and settle throughout your home—unless your system is equipped to stop them. At Walker Heating & Air Conditioning, we offer advanced air filtration and purification systems that trap and neutralize harmful contaminants so you can breathe with confidence.

Whether you suffer from allergies or just want fresher, healthier air, our solutions are designed to deliver. We install everything from media air cleaners and UV lights to powerful whole-home purifiers. These systems don’t just clean the air—they help your HVAC equipment run more efficiently by keeping debris out of your ducts and coils. Our team will help you select the right option for your home, install it professionally, and provide clear instructions for ongoing maintenance.

What Our Customers are Saying About Us

Humidity Control

Find the Right Balance for Comfort and Health

Humidity levels inside your home affect more than just how you feel—they can impact your health, your energy bills, and the condition of your home. When the air is too dry, it can cause dry skin, scratchy throats, and even damage to hardwood floors or furniture. When it’s too humid, it creates a perfect breeding ground for mold and dust mites, making the home feel stuffy and uncomfortable. That’s why we offer whole-home humidifiers and dehumidifiers that keep your indoor environment balanced all year round.

We install premium Aprilaire systems that monitor and adjust humidity levels automatically based on your home’s conditions. These systems are ideal for homes in Woodbridge, VA and surrounding areas, where seasonal changes can create extreme indoor environments. With the right equipment in place, you’ll feel more comfortable at a lower temperature in the winter, and your AC won’t have to work as hard in the summer. It’s a win-win for your comfort and your energy efficiency.

Ventilation That Makes the Difference

Quiet, Efficient, and Properly Sized Ductwork

Even the best HVAC system can’t do its job without well-designed ventilation. Your ductwork controls how air moves through the home—how fast, how quiet, and how evenly it reaches each room. Poorly installed or undersized ducts can cause everything from whistling vents and temperature swings to major energy loss. At Walker Heating & Air Conditioning, we inspect, repair, and optimize your ventilation system to make sure it supports your comfort—not works against it.

Our team takes a thoughtful approach to every project. We perform ACCA-approved load calculations to determine the proper duct sizing and airflow needs for your home. If your current ductwork is making loud noises, restricting airflow, or contributing to poor air quality, we’ll recommend practical solutions—whether that’s sealing, resizing, or a full redesign. Clean, well-functioning ductwork not only improves comfort but helps extend the life of your entire HVAC system.

High-Quality Air Quality Products, Professionally Installed

From UV lamps and purifiers to powerful humidifiers and whole-home filtration systems, we offer proven indoor air quality solutions designed to keep your home healthier and more comfortable. Our technicians will walk you through your options, handle the installation with care, and explain maintenance needs so you get the best performance out of your investment.

UV Lamps

UVC Lights

Kills bacteria, viruses, mold, germs, and other allergens. Cleans the air in your home as the air passes through the UV-lit ducting. These work great if your coil is dirty because they disintegrate dirt on contact.

The installed price of a UVC light is $595. They do require changing the UV lamp every 1 to 2 years.

UV Purifiers

Kills bacteria, viruses, mold, germs, and other allergens. Cleans the air in your home by an ionic process that bonds molecules throughout the air in the house. The installed price of the Air Scrubber UV purifier is $1,095. It does require changing the lamp every 2 years on average.

Humidifiers and De-Humidifiers

Steam Humidifiers

The Aprilaire 800 Steam Humidifier is the best machine that you can have in your house for raising humidity. Some benefits are moisturizing dry skin and nasal passages and soothing allergies, colds, and flu symptoms. It also protects furniture and floors, prevents static shock, and makes you feel warmer at a lower temperature.

The installed price of the Aprilaire 800 is $2,995. They require a dedicated electrical line and circuit, which can incur an additional cost.

Power Humidifiers

The Aprilaire 700M Power Humidifier is a standard whole-home humidifier. It has the same benefits as the Aprilaire 800 at a more affordable price. However, the 700M can not put out the humidity that the 800 can and requires more intense maintenance. The power humidifiers have a greater chance of leaking and mold build-up issues if improperly maintained.

Our installation cost on the Aprilaire 700M is $1,195.

De-Humidifiers

Dehumidifiers remove the humidity from the home. This helps in the summertime if you have a muggy house or areas with high humidity. It can also make the house more comfortable and run the central AC less.

The total installation cost of an Aprilaire De-Humidifier ranges between $2,995 and $3,995.

Air Cleaners and Air Filtration

Media Air Cleaners

The Honeywell Media Air protects your HVAC equipment and keeps the air in your home clean. The air filters on the Honeywell filtration system only need to be replaced every 6 months to 1 year.

Our cost of the Honeywell Media Air Cleaner is $1,195. This price includes installation and up to 1 duct fitting with a canvas connector.

Air Purifiers

An air purification system can help with asthma, reduce allergies, and eliminate odors in the house. It also kills bacteria, mold, and viruses. Two ways to add an air purifier include media air cleaner + UVC light or a packaged UV purifier.

Packaged Air Purifier Installed = $2,995

Media Air Cleaner + UVC Light = $2,195