Avanelle Cooling & HeatingTexas HVAC license TACLB52456E

Ducts · UV Lights · Air Scrubbers

Indoor Air Quality In San Antonio

We clean or replace ducts, and add UV lights and air scrubbers. Each one is quoted in writing before any work.

Call or text any time. A person replies by morning. Hablamos español.

  • Texas HVAC license TACLB52456E · Check It
  • 5.0 on Google · 14 reviews · read Sep 12, 2026

Ducts, UV Lights And Air Scrubbers

Duct Cleaning And Replacement

We clean the ducts, or replace the ones cleaning cannot fix. Leaky, torn or crushed ducts are a replacement job.

UV Lights At The Coil

A UV light mounts inside the system, near the indoor coil. It shines on the coil, where damp surfaces stay dark.

Air Scrubbers In The Ducts

An air scrubber is an add-on that sits in the ductwork. We fit it to your system and quote it like any part.

We name what each part does, and we make no health promises.

The EPA On Duct Cleaning

"You should consider having the air ducts in your home cleaned if: There is substantial visible mold growth inside hard surface (e.g., sheet metal) ducts or on other components of your heating and cooling system. Ducts are infested with vermin, e.g. (rodents or insects). Ducts are clogged with excessive amounts of dust and debris and/or particles are actually released into the home from your supply registers." — U.S. Environmental Protection Agency, Should You Have the Air Ducts in Your Home Cleaned?

Source: epa.gov, checked Oct 12, 2026

"Duct cleaning has never been shown to actually prevent health problems. Neither do studies conclusively demonstrate that particle (e.g., dust) levels in homes increase because of dirty air ducts. This is because much of the dirt in air ducts adheres to duct surfaces and does not necessarily enter the living space." — U.S. Environmental Protection Agency, Should You Have the Air Ducts in Your Home Cleaned?

Source: epa.gov, checked Oct 12, 2026

Leaky Ducts Lose Air

"In a typical house, however, about 20 to 30 percent of the air that moves through the duct system is lost due to leaks, holes, and poorly connected ducts." — ENERGY STAR, Duct Sealing. That is air, lost through leaks; sealing and replacing ducts address it. Cleaning does not.

Source: energystar.gov, checked Oct 12, 2026

"Typical systems with ducts in attics or crawl spaces lose from 25% to 40% of the heating or cooling energy that passes through them. … In summer, ducts gain heat from warm surrounding spaces, detracting from the air conditioner’s ability to cool the house." — U.S. Department of Energy, Building America: Better Duct Systems for Home Heating and Cooling.

Source: www1.eere.energy.gov, checked Oct 12, 2026

"Make sure ducts are properly sealed and insulated in all non-air-conditioned spaces (e.g., attics and crawl spaces)." — U.S. Environmental Protection Agency, from the same page's list of how to prevent duct contamination.

Source: epa.gov, checked Oct 12, 2026

Dust That Keeps Coming Back

"If your home experiences any of these problems, it might be a good candidate for an attic air sealing project: Drafty rooms; Hot and cold rooms; uneven temperature between rooms; High heating or cooling bills; Ice dams in the winter; Dry indoor air in winter; Dust (especially in rooms directly below the attic)" — ENERGY STAR, Attic Air Sealing Project.

Source: energystar.gov, checked Oct 12, 2026

Recessed can lights that aren't airtight can pull attic dust inside.

Source: energystar.gov, checked Oct 12, 2026

Our Saharan dust guide explains the summer haze that drifts in from Africa.

Source: aoml.noaa.gov, checked Sep 12, 2026

Saharan Dust

Our winter attic remodel seals those gaps and cleans or replaces the ducts.

See Attic Offer

Indoor Air Quality Questions

Do My Ducts Need Cleaning?

The EPA names three cases where cleaning is worth considering.

They are mold in sheet-metal ducts, vermin, and ducts clogged with dust.

Source: epa.gov, checked Oct 12, 2026

Does Duct Cleaning Prevent Health Problems?

The EPA says duct cleaning has never been shown to prevent health problems.

Source: epa.gov, checked Oct 12, 2026

Clean Or Replace My Ducts?

Replace ducts that leak, tear or crush, since cleaning fixes none of that.

Source: energystar.gov, checked Oct 12, 2026

What Does A UV Light Do?

It mounts inside the system and shines on the indoor coil.

Will An Air Scrubber Fit?

We check your system first, then quote the scrubber in writing.

Where Do You Work?

We work in San Antonio and the surrounding counties.

Get An AC Or Heating Estimate

Tell us about the house and what the system is doing. We'll call or text you back to set a time. No automated quotes, no commissioned salespeople, no obligation.

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Call (210) 965-6935

We do not sell your personal information. Your request goes to our office and nowhere else.

Maintenance Plan

Heat And AC On A Schedule

$20 a month for the first system

Each additional system on the plan adds $10 a month.

We put your system's regular maintenance on our calendar. Small problems get caught while they're small.

It is a maintenance plan: scheduled maintenance for a stated term. It is not a warranty and not a service contract; it does not pay for repairs or replacements.

Request A Plan

Reviews On Google

5.0

14 Google reviews · read September 12, 2026

Request An Air Quality Visit

We work in San Antonio and the surrounding counties. Call or text any time. A person replies by morning. Hablamos español.