Do I need an ERV or an HRV?

Both recover most of the energy from the stale air they exhaust while bringing in filtered fresh air. The difference is moisture: an ERV transfers humidity as well as heat (the right choice in humid Texas and Florida), while an HRV moves heat only (better for cold, dry winters). A tight, stuffy, or newly-sealed home is the main candidate.

How is the right ventilation size determined?

Sizing follows the ASHRAE 62.2 residential ventilation standard, which sets the fresh-air rate from the home's floor area and bedroom count. A good installer calculates that rate rather than guessing — an undersized unit won't clear stale air and an oversized one wastes energy.

Should I consider ERV/HRV ventilation for a Florence home with mold or musty odors?

Yes, consider ERV or HRV when moisture and poor ventilation drive mold or persistent odors. These systems exchange stale indoor air for conditioned outdoor air while limiting humidity transfer. Pairing ventilation with proper dehumidification and filtration gives better control of biological growth in Florence's humid climate.

Do Florence installers need a business license and bonding to perform air purifier or HVAC work?

Yes. Florence requires a business license and bonding for contractors performing indoor-air work. Confirm a provider's city business license and bonding status before hiring. Also ask for proof of insurance and workers' compensation to protect the homeowner from liability during installations or service visits.

What signals show a Florence provider is experienced with high-MERV or media filter upgrades?

Look for written load calculations, specification sheets for compatible filters, and references demonstrating improved indoor-air results after upgrades. Providers should confirm airflow impacts and offer filter-change plans. Ask for MERV ratings and testing evidence such as post-upgrade particle counts or customer feedback about reduced allergy symptoms.

How do I get a quote from these indoor air quality companies?

Submit one request on this page and we send it to the vetted indoor air quality pros in Florence, SC listed here. They send quotes back — no obligation.

Best ERV/HRV Ventilation Installers in Florence, SC

Last updated June 29, 2026

What to look for in ERV/HRV Ventilation Installation in Florence

For fresh-air ventilation, we weight providers who choose the right device for the climate (ERV for humid markets, HRV for cold-dry) and size it to the ASHRAE 62.2 standard — over a generic 'we install fans' claim.

Published ERV/HRV capability. A stated energy- or heat-recovery ventilator line, ideally naming ERV-vs-HRV selection for the climate.
ASHRAE 62.2 sizing. Evidence the provider sizes ventilation to the 62.2 rate rather than guessing — the difference between clearing stale air and wasting energy.
Google rating. A strong rating floor reflects whether the install actually fixed stuffiness/odors.

Verify before you book

That a unit was sized to your specific home's 62.2 rate — ask for the calculation.
Whether ERV vs HRV was the right call for your climate — confirm the moisture-transfer choice.
Active state HVAC license — check TDLR (TX), ROC (AZ), DBPR (FL), or your local board.

See full ranking methodology for ERV/HRV Ventilation Installation →

ERV/HRV Ventilation in Florence: ERV vs HRV + 62.2 sizing

A ventilation job is judged on the right device for the climate (ERV moves moisture, HRV doesn't), recovery efficiency, and ASHRAE 62.2 rate sizing — not just bolting on a fan. Here is what each of the 2 pros below publishes: Verify your state's HVAC contractor license through the state licensing board before paying a deposit.

How we rank ERV/HRV Ventilation Installation providers → · Top picks meet at least one of: a category award, ≥2 verified signals, or Vouched Score ≥ 70.

Top picks

Quality Service Company
Consistently strong customer feedback (4.9★ from 920+ Google reviews; 3.6★ from 7 Yelp reviews).
Google 4.9★ (920+)Yelp 3.6★ (7)
Cook Comfort Systems LLC
Consistently strong customer feedback (4.9★ from 70+ Google reviews).
Google 4.9★ (70+)

Typical ERV/HRV Ventilation Installation costs in Florence, SC (2026)

Last updated June 22, 2026

Estimated ranges for Florence, SC. Actual cost varies with home size, equipment, and scope — always request a written quote for your job.

Service	Typical range
ERV/HRV ventilator (retrofit, installed)	$1,050–$2,450
HRV ventilator (heat recovery, installed)	$1,050–$1,950
ERV ventilator (energy/moisture recovery, installed)	$1,650–$2,450

Why Florence's Humid Summers Make "Indoor Air Quality" Work Different

Florence's long, humid summers raise indoor relative humidity and boost mold and allergen growth, adding wear to HVAC coils and ductwork. When searching for the best indoor air quality HVAC companies in Florence, SC, homeowners should prioritize dehumidification, ventilation upgrades, and regular coil and duct cleaning.

What Florence homeowners ask about "Indoor Air Quality" — quick, local answers

Do I need an ERV or an HRV?: Both recover most of the energy from the stale air they exhaust while bringing in filtered fresh air. The difference is moisture: an ERV transfers humidity as well as heat (the right choice in humid Texas and Florida), while an HRV moves heat only (better for cold, dry winters). A tight, stuffy, or newly-sealed home is the main candidate.
How is the right ventilation size determined?: Sizing follows the ASHRAE 62.2 residential ventilation standard, which sets the fresh-air rate from the home's floor area and bedroom count. A good installer calculates that rate rather than guessing — an undersized unit won't clear stale air and an oversized one wastes energy.
Should I consider ERV/HRV ventilation for a Florence home with mold or musty odors?: Yes, consider ERV or HRV when moisture and poor ventilation drive mold or persistent odors. These systems exchange stale indoor air for conditioned outdoor air while limiting humidity transfer. Pairing ventilation with proper dehumidification and filtration gives better control of biological growth in Florence's humid climate.
Do Florence installers need a business license and bonding to perform air purifier or HVAC work?: Yes. Florence requires a business license and bonding for contractors performing indoor-air work. Confirm a provider's city business license and bonding status before hiring. Also ask for proof of insurance and workers' compensation to protect the homeowner from liability during installations or service visits.
What signals show a Florence provider is experienced with high-MERV or media filter upgrades?: Look for written load calculations, specification sheets for compatible filters, and references demonstrating improved indoor-air results after upgrades. Providers should confirm airflow impacts and offer filter-change plans. Ask for MERV ratings and testing evidence such as post-upgrade particle counts or customer feedback about reduced allergy symptoms.
How do I get a quote from these indoor air quality companies?: Submit one request on this page and we send it to the vetted indoor air quality pros in Florence, SC listed here. They send quotes back — no obligation.