Whole-House Air Filtration
Installation in Southern NH
A.J. LeBlanc Heating installs media filters, electronic air cleaners, UV air purifiers, and HEPA filtration across Southern NH. Every install includes properly sized cabinets, static pressure verification, and our workmanship warranty.
Filter Options We Install
High-Efficiency Media Filters
Four-inch and five-inch media filters provide more surface area than a standard one-inch filter. We select the MERV rating and cabinet for the HVAC system, verify airflow, and explain the replacement schedule for the installed filter.
Electronic Air Cleaners
Electronic air cleaners use charged components to capture airborne particles. Cleaning and service requirements vary by model, so we explain the manufacturer's schedule before installation.
UV and Air-Treatment Products
UV and air-treatment products are selected for a specific purpose and installed where the manufacturer requires. Some are designed to limit microbial growth on wet HVAC surfaces, while others have product-specific performance claims. We explain the verified claim for the equipment being quoted instead of treating every device as the same solution.
Whole-House HEPA
A true HEPA filter is rated to capture at least 99.97 percent of 0.3-micron airborne particles under test conditions. A whole-house HEPA system can be useful when high particle filtration is a priority, provided the equipment and airflow are designed for the home's HVAC system.

Why Whole-House Filtration Works Better
A standard 1-inch filter sitting in the return vent is designed mainly to protect your furnace or air handler, not to clean your home's air. A whole-house filter installed by A.J. LeBlanc Heating is thicker (4 to 5 inches), set in a dedicated cabinet, and uses far more filter media. The larger media area can improve particle capture while keeping airflow within the system's acceptable range. We verify static pressure and give you the model-specific replacement schedule.
- Replaces existing filter rack with high-efficiency cabinet
- MERV 11, 13, or 16 media options depending on your needs
- Works with most forced-air heating or cooling systems
- Model-specific filter replacement schedule
- Optional UV or air-treatment equipment selected for a defined purpose
- Static pressure verified after installation
Air Filtration Brands
A.J. LeBlanc Heating installs many whole-house air filtration brands across Southern NH, including Honeywell, Trane, Carrier, Lennox, Trion, and RGF Reme Halo whole-house UV purifiers. Aprilaire is featured here because it is the brand we install most often.
Air Filtration FAQ
What is MERV rating?
MERV (Minimum Efficiency Reporting Value) rates how well a filter catches particles. Standard 1-inch filters are MERV 6 to 8. Whole-house filters typically range from MERV 11 (good) to MERV 16 (excellent). Higher is generally better, but very high MERV ratings can restrict airflow on systems not designed for them. A.J. LeBlanc Heating sizes accordingly for your Southern NH system.
Will a high-efficiency filter hurt my HVAC system?
Any filter adds resistance, and the result depends on the filter, cabinet, blower, ductwork, and how loaded the media becomes. We select a filter the system can support and verify static pressure after installation.
How often do I change the filter?
Service intervals vary by filter, air cleaner, home conditions, and runtime. We give you the manufacturer's cleaning or replacement schedule for the exact equipment installed.
Will this help with allergies?
A MERV 13 filter can capture smaller airborne particles than a standard filter when the HVAC system is designed for the added resistance. We check the blower and filter cabinet before recommending an upgrade. Filtration can reduce airborne particles, but results depend on the equipment, airflow, pollutant source, and how the system operates.
Southern NH Communities We Serve
Free estimates and prompt service across Southern New Hampshire. Find your town for local details, or call 603-623-0412.
Services in Southern NH's Largest Cities
Manchester
Nashua
Whole-House Air Filtration Installation
A.J. LeBlanc Heating evaluates the current HVAC system and recommends filtration that fits its airflow and the homeowner's goals. We install the selected equipment, verify operation, and back the work with our workmanship warranty.
Get in Touch
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Contact Information
Mon-Fri: 8am-4:30pm
Evenings & Weekends: Emergency Service
24/7 Emergency Service
No heat? No hot water? Call 603-623-0412 any time.