Ultimate Heating & Air, Inc

HVAC, Plumbing & Electrical in Boise City

Get expert HVAC, plumbing & electrical help for your home today. Ultimate Heating & Air, Inc serves Boise City with licensed & insured technicians trained through a nationally recognized apprenticeship program. We cover Boise, Nampa, Meridian, Caldwell & Eagle, with same-day availability & maintenance plans that can deliver real savings. With 20+ years of local experience and Bryant dealer awards, we stand behind our work. Call or book online today for a free estimate.

Find the Right Service for Your Home

Explore our professional services and get the help you need to keep your home comfortable, safe, and running smoothly.

Why choose us

Boise City's top-ranked HVAC maintenance and tune-ups

Get the No-Breakdown Guarantee on HVAC maintenance and tune-ups, with water heater repair and general plumbing from one crew.

  • No-Breakdown Guarantee
  • Repeat businessMany homeowners call us again
  • TransparencyOpen about every job
  • HVAC maintenance and tune-ups

    Leader

    The go-to in Boise City

    350+ Boise City reviews and counting

  • Water heater repair

    Good

    In top 17%

    Proven in 60+ Boise City reviews

  • Ranked locally

    Good

    In top 13%

    Measured across Boise City

Grades compare Ultimate Heating & Air with Boise City home service pros, based on homeowner reviews and the jobs they mention. Leader means ranked first among Boise City home service pros and Good the top 25%.

Service area

Cities We Serve in Boise City

11cities
  • Boise, ID
  • Caldwell, ID
  • Eagle, ID
  • Garden City, ID
  • Kuna, ID
  • Meridian, ID
  • Nampa, ID
  • Star, ID
View all service areas
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Coupons & specials

Coupons and Offers in Boise City

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Reviews

Recent Customer Reviews in Boise City

2,399 reviews

Customers mention

  • Professionalism871
  • Service775
  • Quality of Work700
  • Brand Loyalty456
  • Overall experience443
  • Communication368

Based on all customer reviews.

  • Brandon came out to give a second opinion on a new kitchen vent assembly... what a great guy! Explained everything so as even I could understand. Showing…Read full reviewShow less
    Brandon came out to give a second opinion on a new kitchen vent assembly... what a great guy! Explained everything so as even I could understand. Showing pictures of possible problems and presented solutions if the need arises. I'm confident they are the company I'll go with.
    Donovan McDonald
  • WE love Ultimate heating and air.. they are very fair and there techs very good and courteous WE had Colby oskoloff come out today for a tune up on our furnace…Read full reviewShow less
    WE love Ultimate heating and air.. they are very fair and there techs very good and courteous WE had Colby oskoloff come out today for a tune up on our furnace did a spectacular job we will only use Ultimate we have been with them for 3 yrs thank u
    Marc
  • Great maintenance done by Christopher. Very thorough and takes a lot of pride in his work!
    Jairus Whipple
  • He was on time. He was very thorough and did a great job explaining what he was doing and why and making sure that I understood. He was very courteous and…Read full reviewShow less
    He was on time. He was very thorough and did a great job explaining what he was doing and why and making sure that I understood. He was very courteous and pleasant to work with. Put on shoe covers every time he walked in the house. All in all a great job.
    David Lord

See Why Homeowners Trust Us

Read real customer experiences and discover what makes our team a trusted choice for home services.

Got questions?

Frequently Asked Questions

Have Questions? We've Got Answers

Find answers to common home service questions and get the information you need to move forward with confidence.

How much does drain cleaning cost for a clogged drain?

Drain cleaning cost for a clogged drain is confirmed after an on-site diagnostic, with Ultimate Heating & Air advertising $49–$79 diagnostic visits and no service call or dispatch fees. Final pricing depends most on where the blockage sits and how hard it is to clear. For many homes, a simple sink or tub clog is quick; main sewer line blockages or heavy buildup can take longer. We service the Caldwell area daily and offer 24/7 Emergency Services with 4 Hour Arrival or Same Day Service when available. A tech insight: if a cable brings back wipes or roots, expect extra time or a recommended camera inspection to verify the line.

When estimating your total, consider:

  • Drain location: single fixture vs. main sewer line
  • Obstruction type: grease, wipes, roots, or foreign objects
  • Access: presence of a cleanout and pipe condition
  • Add-ons: camera inspection findings or minor spot repairs

If you see sewage backing up or multiple fixtures gurgling, stop water use and request emergency service immediately.

Updated: 2026-10-23

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

What Does Furnace Replacement Cost for Most Homeowners?

Furnace replacement cost for most homeowners varies by home and equipment and is only confirmed after an on-site assessment, though Ultimate Heating & Air, Inc offers heating system installs for as low as $120 per month with approved financing. The biggest price drivers are the furnace size your home needs, efficiency rating, and any work required to adapt ducts, vents, gas, or electrical. Our team replaces systems throughout the Boise–Garden City area and prices projects to local code and typical home layouts.

What most affects the final price:

  • Capacity and efficiency: BTU size and AFUE rating
  • Home readiness: duct modifications, venting/flue changes, gas or electrical updates
  • Extras: thermostat upgrades, indoor air quality add-ons, and permit/inspection needs

If your unit has a cracked heat exchanger or repeated major failures, replacement often beats stacked repair costs; if issues are minor, a targeted repair may be smarter. A common field find: upsizing a furnace won’t fix cold rooms if undersized ducts restrict airflow. Schedule an in-home evaluation to receive a firm, written price.

Updated: 2026-10-23

Need help in Garden City, ID? Call (208) 738-4822 or book online. “He identified the problem and replaced the part to get our system functioning again.” — James W.

What are the most common slab leak symptoms in a home?

The most common slab leak symptoms in a home are a sudden water-bill spike, warm spots on concrete floors, and the sound of water when all fixtures are off. Most people notice the bill change first because a pressurized line under the slab is leaking nonstop. Signs can appear in odd places, so a pro looks for patterns across floors, walls, and the water meter. Our plumbers often see these patterns in homes around the Meridian area. A quick field clue: the warmest tile often sits over the leaking hot line. If you see pooling or a fast-moving meter, treat it as urgent.

Watch for:

  • Meter dial moving with all water off
  • Warm, damp, or discolored flooring on concrete
  • Hissing or running-water noises under floors
  • Drop in pressure at several fixtures
  • New cracks, musty odors, or puddles at the foundation

If you suspect a slab leak, shut off the main valve and schedule leak detection.

Updated: 2026-10-23

Need help in Meridian, ID? Call (208) 738-4822 or book online. "Brandon found and repaired a leak in my heat pump left by another company ." — Gloria B.

What counts as an emergency AC fix for homeowners?

An emergency AC fix is work done immediately to restore safe cooling when a failure threatens health, property, or the equipment itself. The most common trigger is a full loss of cooling during extreme heat that makes the home unsafe or unlivable.

Ultimate Heating & Air provides 24/7 live answering and emergency AC repair, with same-day service highlighted across our local pages. Our technicians see these situations often around the Eagle area and prioritize rapid diagnosis to protect your system and your home. A practical rule from the field: if the breaker trips again right after you reset it, stop resetting and call—repeat trips can damage the compressor.

Call right away if you notice any of these:

  • No cooling or only warm air during high heat, especially with infants, elders, or medical needs
  • Electrical burning smell, smoke, or repeatedly tripping breakers
  • Active water leak at the indoor unit threatening ceilings, walls, or floors
  • Outdoor unit humming but fan not spinning, or severe icing on lines with system shutting down

Turn the system off at the thermostat and seek licensed service before further damage occurs.

Updated: 2026-10-23

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

What does plumbing installation include in a new home?

Plumbing installation in a new home includes the full rough-in and finish work for clean water supply lines, drain‑waste‑vent piping, and all plumbing fixtures. Most of the labor happens during rough‑in, when pipes are routed, secured, and pressure‑tested before walls are closed, then fixtures and trim are set at the finish stage. In our Kuna service area, projects commonly add outdoor hose bibs, a dedicated sump pump where groundwater is a concern, and optional water treatment to protect fixtures.

What a complete scope typically covers:

  • Rough‑in for hot/cold supply, main shutoff, and drain‑waste‑vent layout
  • Water heater set, expansion control as needed, and gas or electric hookups
  • Fixture set (kitchen, baths, laundry) with individual shutoffs and traps
  • Exterior hose bibs, sump pump or backflow devices, and final system testing

Ask for a pre‑construction walk‑through to lock in fixture choices, locations, and test points before framing closes.

Updated: 2026-10-23

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

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