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Indoor Air Quality Services in Greater Boise Area

Breathe easier with expert indoor air quality services for your home. We assess, clean, and improve your air with proven solutions like duct cleaning, filtration, and humidity control. Our licensed and insured team brings 20+ years of local experience and a 4.8 rating from 2,294 reviews. Serving the Greater Boise Area, including Boise, Meridian, and Nampa. Talk with a friendly pro today to schedule an assessment or get recommendations that fit your home and budget.

Our work

Project Gallery

Experience top-notch HVAC services and more with Ultimate Heating & Air, ensuring your home's comfort and efficiency.
Why us

Why Choose Us

Licensed and insured

Licensed team with documented Idaho licensing

20+ years local

Serving Idaho homes and businesses for over 20 years

Manufacturer awards

Bryant Circle of Champions and Dealer of the Year honors

Trained technicians

In-house apprenticeship program, locally and nationally recognized

Proven satisfaction

4.8 rating from 2,294 reviews

Social proof

What Our Customers Say

5.0
quality

“Ultimate replaced our 17 year old A/C, furnace and water heater, and performed a duct cleaning. The process from start to finish was seamless.”

5.0
professionalism

“I also use their duct cleaning service, Brad really knows what he is doing and goes over everything carefully and courteously.”

5.0
communication

“Aiden and Tony were great today and completing the air duct cleaning and explaining things.”

Got questions?

Frequently Asked Questions

Whole-house humidifier installation costs vary by home and system; Ultimate Heating & Air offers financing with installs for as low as $79 per month, and final pricing is confirmed after an on-site proposal. The biggest drivers are equipment selection and how involved the install is with your existing HVAC and plumbing. We routinely install these systems in the Caldwell area and can size the unit to match your home’s needs. A correctly sized unit prevents over-humidifying, which can fog windows and stress woodwork.

Key factors that change the price:

  • System style (bypass, fan-powered, or steam) and output capacity
  • Access to ducts, drain, and 120V power, which affects labor time
  • Add-ons like upgraded controls or water treatment to limit scale

Schedule a free proposal to get an exact installed price for your home.

Updated: 2026-03-28

Need help in Caldwell, ID? Call (208) 738-4822 or book online.

Learn more

Helpful Resources

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Where we work

Where We Work

Garden City

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Eagle

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Boise

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Star

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Melba

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Caldwell

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Kuna

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Meridian

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Middleton

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Nampa

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Greenleaf

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Ready when you are

Schedule service today with Ultimate Heating & Air, Inc.

(208) 738-4822