Permitted & Code-Compliant
Every install is 100% code-compliant and permitted. No shortcuts that turn into a failed inspection — or a denied insurance claim — years later.
Air Filter Service
Filtration Is a Trade-Off, Not a Number
It is tempting to buy the highest-rated filter on the shelf. But a dense filter in a system that was not designed for it restricts airflow, and restricted airflow freezes evaporator coils in summer, trips limit switches in winter, and shortens blower life year-round.
The right filter is the best filtration your system can move air through. That is a measurement — static pressure — not a guess, and it is why a 4-inch media cabinet often filters better than a 1-inch high-MERV filter while breathing far more easily.
- Licensed Texas HVAC TACLA108651E — permitted, code-compliant work.
- Local since 1986 Nearly four decades on Hill Country systems.
- Backed in writing If it is not right, we come back and make it right.
What to Watch For
Signs Your Filtration Is Wrong
Under-filtering and over-filtering both show up.
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Weak airflow after a filter change
A clear sign the filter is too restrictive for the system.
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The coil ices up in summer
Classic airflow restriction.
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Dust on surfaces despite regular changes
Filter bypass around a loose-fitting filter.
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You cannot remember the last change
Common, and the cheapest thing on this list to fix.
What We Do
Filtration Services
From getting the basics right to full media cabinets.
- Static pressure testing Measuring what the filter is doing to your airflow.
- Media filter cabinets 4- and 5-inch cabinets: better filtration, lower restriction, longer intervals.
- Filter fit and bypass Sealing the gaps that let air go around the filter.
- Replacement schedules Set to your home — pets, allergies and cedar season all change it.
How It Works
How We Approach Air Filter Service
The right answer depends on your home — so we start there.
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Assess the Home
We look at how your home is actually built and used before recommending equipment. The same product is right in one house and wrong next door.
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Recommend and Price Clearly
You get honest options and written pricing, including the option of doing nothing yet if that is the right call.
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Install to Code
Permitted where required, installed to manufacturer spec, and tested before we hand it over.
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Verify and Support
We confirm it performs the way we said it would, and we are local if anything needs attention later.
Why Choose 72 Degrees
Fully Stocked Trucks
Our trucks carry the parts the Hill Country actually needs, so most repairs are finished on the first visit instead of waiting on a return trip.
Fair, Upfront Pricing
You approve the price before we start. No surprises on the invoice, and no overtime premium for nights or weekends.
Written Guarantees
Our work is backed in writing. If something is not right, we come back and make it right.
Available 24/7
A 100-degree August afternoon and a February hard freeze do not keep business hours. Neither do we.
The Wizards of Comfort
Serving Fredericksburg, Kerrville, Boerne and the surrounding Hill Country since 1986 — nearly four decades in the same communities.
Questions About Air Filter Service?
Talk to a licensed local technician — no pressure, no obligation.
What Our Customers Say
Don't just take our word for it — hear from our satisfied customers
★★★★★
I call 72 Degrees for ALL my AC, HVAC, and plumbing needs, large and small. They provide reliable and friendly service, indeed!
Maintenance Membership
Join the Care Club
Total home comfort care, on a schedule.
Members get priority scheduling, seasonal HVAC tune-ups, an annual whole-home plumbing safety inspection, and exclusive discounts — for less than the cost of a single emergency call.
- Priority scheduling
- Seasonal HVAC tune-ups
- Annual safety inspection
- Exclusive member discounts
- Free dispatch on repairs
- No long-term contracts
Air Filter Service — Common Questions
Can A Whole-Home Air Filter Help With Allergies And Respiratory Issues?
How Whole-Home Air Filters Help With Allergies And Breathing Issues
A whole-home air filter works with your HVAC system to remove airborne particles as air circulates through your home. For homeowners dealing with allergies or respiratory issues, reducing these particles can make a noticeable difference in comfort and air quality. Here’s how whole-home air filters help:
- Capture dust, pollen, and pet dander before they circulate
- Reduce airborne irritants that can trigger allergy symptoms
- Improve overall indoor air cleanliness
- Support a healthier breathing environment
Higher-efficiency filters, such as those with higher MERV ratings, can capture smaller particles and provide better protection for sensitive individuals. For best results, whole-home filtration should be combined with:
- Regular filter replacement to maintain airflow
- Duct sealing to prevent contaminants from entering the system
- Additional air quality solutions if needed, such as UV systems or air scrubbers
In the Texas Hill Country, where dust and seasonal allergens are common, improving filtration can help create a more comfortable indoor environment. 72 Degrees Texas can evaluate your home in Fredericksburg, Kerrville, and surrounding areas to recommend the right filtration setup to help reduce allergy symptoms and improve indoor air quality.
How Do I Know If I Need A Home Air Filtration System?
Signs You May Need A Home Air Filtration System
Indoor air quality issues aren’t always obvious, but there are clear signs that your home may benefit from a filtration upgrade. If your HVAC system isn’t effectively removing contaminants, those particles continue to circulate through your home. Common signs you may need a home air filtration system:
- Frequent allergies, asthma symptoms, or respiratory irritation
- Excess dust buildup even after cleaning
- Persistent odors from pets, cooking, or smoke
- Stuffy or stale indoor air
- Visible particles or poor air clarity in certain rooms
You may also benefit from a filtration system if:
- Your current filter is basic and not capturing smaller particles
- Your home has pets or high foot traffic
- Your HVAC system runs frequently and circulates air constantly
In the Texas Hill Country, where dust, pollen, and seasonal allergens are common, upgrading your air filtration can make a noticeable difference in comfort and air quality. 72 Degrees Texas can evaluate your home in Fredericksburg, Kerrville, and surrounding areas to determine if a filtration system is needed and recommend the right solution for cleaner, healthier air.
How Does A Home Air Filtration System Work With My HVAC System?
How Air Filtration Systems Integrate With Your HVAC System
A home air filtration system is designed to work directly with your existing HVAC system, improving the quality of the air as it moves through your home. As your heating or cooling system runs, it pulls air from your home into the return ducts. That air passes through the filtration system before being conditioned and sent back through the supply vents. Here’s how the process works:
- Air is drawn into your HVAC system through return vents
- The filtration system captures dust, pollen, and other airborne particles
- Cleaned air is heated or cooled as needed
- The conditioned air is distributed back into your home
More advanced systems may include multiple stages of filtration, such as high-efficiency filters, activated carbon for odors, or UV purification for microorganisms. Because the filtration system is built into your HVAC setup, it cleans the air throughout your entire home instead of just one room. In the Texas Hill Country, where dust and allergens are common, whole-home filtration can make a noticeable difference in air quality and comfort. 72 Degrees Texas can evaluate your system and recommend the right filtration upgrades to improve airflow, reduce contaminants, and keep your home’s air cleaner year-round.
How Often Should I Replace Filters In My Home Air Filtration System?
How Often To Replace Your Home Air Filters
Replacing your air filter regularly is one of the simplest and most important ways to keep your HVAC system running efficiently and your indoor air clean. For most homes, filters should be replaced every 1 to 3 months. However, the exact timing depends on several factors. You may need to replace filters more often if:
- You have pets that shed hair and dander
- Family members have allergies or respiratory issues
- Your home has higher dust levels or outdoor pollutants
- Your HVAC system runs frequently, especially during hot Texas summers
Some high-efficiency or media filters can last longer, often up to 6 months, but they should still be checked regularly to ensure proper airflow. Signs your filter needs replacing include:
- Reduced airflow from vents
- Increased dust buildup in your home
- Your system running longer than usual
In the Texas Hill Country, where dust and allergens are common, staying on top of filter changes helps maintain better air quality and system performance. 72 Degrees Texas can recommend the right filter type and replacement schedule for homeowners in Fredericksburg, Kerrville, and surrounding areas to keep systems running efficiently year-round.
What Are The Benefits Of Installing A Whole-Home Air Filtration System?
Why A Whole-Home Air Filtration System Is Worth It
A whole-home air filtration system works with your HVAC system to clean the air as it circulates, providing consistent air quality in every room. Unlike portable units, it treats your entire home, not just one area. Key benefits include:
- Reduced dust, pollen, and airborne allergens throughout your home
- Improved indoor air quality for better comfort and health
- Relief from allergy and respiratory symptoms
- Cleaner air circulating through your HVAC system
- Support for better airflow and system efficiency
- Consistent air quality in every room, not just isolated spaces
Because the system is integrated into your ductwork, it works automatically whenever your HVAC system runs, helping maintain cleaner air without extra effort. In the Texas Hill Country, where dust and seasonal allergens are common, whole-home filtration can make a noticeable difference in how your home feels day to day. 72 Degrees Texas helps homeowners in Fredericksburg, Kerrville, and surrounding areas choose and install filtration systems that improve comfort, air quality, and system performance.
*Offers cannot be combined with other promotions or applied to dispatch fees. No cash value. Must present offer at time of service. Call for details.
