HVAC maintenance and tune-ups
LeaderThe go-to in Boise City
350+ Boise City reviews and counting
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.
Explore our professional services and get the help you need to keep your home comfortable, safe, and running smoothly.
Why choose us
Get the No-Breakdown Guarantee on HVAC maintenance and tune-ups, with water heater repair and general plumbing from one crew.
The go-to in Boise City
350+ Boise City reviews and counting
In top 17%
Proven in 60+ Boise City reviews
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%.
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Coupons & specials
NO service call fees. NO dispatch fees.
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$50 off any in-home repair
schedule service with our knowledgeable team
0% financing for up to 18 months on approved credit
on approved credit
on approved credit
Plan members can save up to 25% off flat-rate repairs and may avoid after-hours fees on select plans.
Plan members
Water Heater Tune-Up & No-Breakdown Guarantee $99 Same Day Service Guarantee
If your system breaks down within 6 months of service: We’ll give you priority scheduling service; We’ll come out at no cost to diagnose the problem; Credit your original tune-up charge toward the repair! 100% Satisfaction Guaranteed NO service call fees. NO dispatch fees.
Call For Service: (208) 834-7239 Schedule Now
Reviews
2,399 reviews
Customers mention
Based on all customer reviews.
Excellent service and very personable. Highly recommend.
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.
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
Great maintenance done by Christopher. Very thorough and takes a lot of pride in his work!
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.
Read real customer experiences and discover what makes our team a trusted choice for home services.
Got questions?
Find answers to common home service questions and get the information you need to move forward with confidence.
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:
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.
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:
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.
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:
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.
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:
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.
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:
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.