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
4-inch and 5-inch pleated media filters (MERV 11 to 16) catch far more particles than standard 1-inch filters and last 6 to 12 months between changes. A top upgrade for most Southern NH homes.
Electronic Air Cleaners
Electronic air cleaners use charged plates to attract and capture particles. No replacement filters to buy. You just wash the collector cells. Excellent for smoke and fine dust in NH homes.
UV Air Purifiers & Reme Halo
UV-C lamps and the RGF REME HALO install in your ductwork to reduce mold, bacteria, and odors. A UV-C lamp keeps your coil free of mold and biofilm, which protects airflow and cuts musty smells. The REME HALO adds active air treatment that reduces odors and microbes throughout the home. We often pair either with a media filter for fuller coverage.
Whole-House HEPA
True HEPA filtration removes 99.97 percent of particles down to 0.3 microns. Overkill for most homes, but ideal for allergy or asthma sufferers.

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 result is more particles captured, less airflow restriction, and a filter you change a couple times a year instead of every month.
- 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
- Filter changes twice a year instead of monthly
- Pairs well with UV air purifiers for comprehensive treatment
- Lower pressure drop than cheap 1-inch filters, which improves HVAC efficiency
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?
No, as long as it is sized right. A 4 or 5-inch thick media filter has far more surface area than a 1-inch filter, so even at MERV 13 the airflow restriction is usually lower than a dirty 1-inch filter. We verify static pressure after every installation.
How often do I change the filter?
Most whole-house media filters last 6 to 12 months depending on home conditions (pets, dust, local pollen). Electronic air cleaners, whether from Aprilaire or another brand, do not use replacement filters. You just wash the collector cells every few months.
Will this help with allergies?
For most Southern NH allergy sufferers, yes. A MERV 13 or higher filter captures the majority of pollen, dust mite debris, and pet dander. For severe allergies, combining whole-house filtration with UV treatment and regular duct cleaning can noticeably reduce symptoms.
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 assesses your current system and recommends the right filter type and size for your Southern NH home. Professional installation with a workmanship guarantee on every install.
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.