Licensed & Insured Family-Owned Since 2002 Same-Day Service

HVAC Installation - Installed Right, First Time

Complete heating + cooling system replacement designed for maximum efficiency, comfort, and long-term reliability. Proper Manual J load calculation, expert install, 5-year labour warranty + up to 10-year manufacturer warranty. Free in-home estimate.

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Financing available Spread the cost over monthly payments
Call us about financing →
Walker Plumbing, Heating & Air technician arriving at a St. George home in a branded service van
4.8 on Google

“Vili was so nice. I had a lot of questions about my water heater and he answered every one.”

— Diana, St. George · 2000+ reviews
23+ YearsIn business
4.8★ Rating2000+ Reviews
LicensedMaster Plumbers
Insured& Family-Owned
24/7 ServiceLive dispatch
No UpsellsHonest pricing

What a properly designed HVAC install actually delivers

The difference between a $14,000 install that lasts 15 years and one needing repairs in year 3 comes down to system design and installation quality.

Lower Energy Bills

High-efficiency systems properly sized to your home cut heating and cooling costs meaningfully - month after month.

Even Comfort, Every Room

Proper sizing means consistent temperatures throughout the home - no hot spots, no cold corners, no humidity issues.

Fewer Repairs, Longer Lifespan

Expert installation prevents the airflow, refrigerant, and combustion issues that cause early system failure.

Strongest Warranties in Southern Utah

5-year labour warranty from Walker + up to 10-year manufacturer warranty. Registered for you, in writing.

Three whole-system options - which fits your home?

We design and install complete HVAC systems for any home in Southern Utah. Here's how to think about your options.

AC + Gas Furnace

Best for: Most Southern Utah homes with existing gas service

  • Proven, reliable combination
  • High-efficiency AC + 95%+ efficient furnace
  • Strong winter heat for cold snaps
  • Uses existing ductwork
  • 5-yr labour + up to 10-yr manufacturer warranty
Get Quote
Most Efficient

Heat Pump System

Best for: Maximum energy efficiency, all-electric homes

  • Cools in summer, heats in winter - one system
  • Highest energy efficiency available
  • Works well in Southern Utah's mild winters
  • Often qualifies for utility rebates
  • Financing available
Get Quote

Hybrid System

Best for: Best of both - efficiency plus winter performance

  • Heat pump for mild days · gas furnace for cold snaps
  • Auto-switches based on outdoor temperature
  • Maximum efficiency without sacrificing winter comfort
  • Higher upfront cost, lower long-term operating cost
  • Smart thermostat included
Get Quote

How the install works

From first call to working HVAC - a clear, no-pressure process.

1

Free in-home evaluation

A certified HVAC tech comes out, measures your home, performs a proper Manual J load calculation, and inspects existing ductwork and electrical. Free, no obligation, no pressure.

2

Quote & system design

Written quote with efficiency options. We explain trade-offs honestly - SEER ratings, AFUE, sizing logic, payback timeframe. Financing available. You approve when ready.

3

1-day install

Most whole-system installs completed in a single day (4-8 hours). Old system removed, new system installed, calibrated, tested. Cleanup and full walkthrough before we leave.

Free estimate · Proper Manual J load calc · No pressure · Financing available

Why install quality matters more than install price

A $1,500 cheaper install that cuts corners costs $5,000+ in repairs and lost efficiency over 5 years. The most expensive HVAC system is the one that fails early.

Cheap Installs

  • No load calculation - oversized or undersized system
  • Rushed install - corners cut on duct connections
  • Poor refrigerant line work causing leaks
  • Skipped permits and inspections
  • No warranty registration - you lose manufacturer coverage
  • Generic equipment, mismatched components

Walker Installs

  • Proper Manual J load calculation - sized for YOUR home
  • Quality install · fully tested before we leave
  • Proper brazing and refrigerant line work
  • Permits pulled, inspections scheduled
  • Warranty registered · 5-yr labour + up to 10-yr manufacturer
  • Matched system components for peak efficiency

Ready for an HVAC system that just works?

Free in-home estimate · Manual J load calculation · 5-yr labour + 10-yr manufacturer warranty · Financing available · 1-day install in most cases.

Get My Free Estimate or call (435) 222-0340
4.8★ · 2000+ reviews · Family-owned since 2002 · Permits & disposal handled

What a complete HVAC install actually costs

System price varies based on tonnage, efficiency rating, and your home's specifics. Here's what drives the cost.

What drives the cost

  • System size (tonnage) - based on proper Manual J load calculation, not eyeballing your old unit
  • Efficiency rating (SEER + AFUE) - higher efficiency = higher upfront, lower monthly bills
  • System type - traditional split, heat pump, or hybrid (each has different cost/savings profile)
  • Ductwork condition - repairs or modifications if existing ducts aren't up to the job
  • Electrical and gas line work - some installs require service upgrades
  • Permits and disposal - we handle both, factored into your quote
Free in-home estimate. Detailed written quote. You approve before we start. We won't begin work until you say yes.

💳 Financing Available

Spread the cost over monthly payments through our financing partners. Ask about terms during your free estimate.

Ask about financing

Current system died? We can usually install fast.

When your HVAC fails - especially in peak summer or deep winter - waiting two weeks isn't an option. Our trucks carry common sizes and we partner with suppliers for faster access to specific systems. Call our line and we'll work to get you scheduled quickly.

Why Southern Utah trusts Walker Plumbing

23+Years in business
2000+4.8★ Google reviews
20+Service vehicles
10K+Homes served

Walker Plumbing, Heating & Air has installed complete HVAC systems in thousands of Southern Utah homes since 2002. Every install includes proper load calculation, permits, system testing, and full warranty registration. Installed right the first time - and we treat every customer like family because this is our community too.

Meet the Walker Team

Southern Utah's local plumbing & HVAC family - since 2002

Brett Walker founded Walker Plumbing, Heating & Air in 2002 after 20+ years as a master plumber. He saw a gap for honest, high-quality service in Southern Utah and decided to fill it himself - starting with a single truck and a commitment to do right by every customer.

Today, Brett leads a fully licensed team of master plumbers and HVAC technicians running 20+ service vehicles across St. George and the surrounding communities. Every team member is family-owned, continuously trained on the latest tools, and held to the same standard Brett started with: clear communication, prompt arrival, and zero upsells.

  • Licensed master plumbers & HVAC technicians - never subcontracted
  • Family-Owned & insured - technicians we'd trust in our own homes
  • Clean, courteous, on-time - we treat your home like our own
  • No-upsell policy - honest diagnostics, every time
Utah License Number: 7891724-5501 · Licensed, bonded, and insured in the State of Utah.
The Walker Plumbing, Heating & Air team in St. George, Utah - master plumbers and HVAC technicians

HVAC installation reviews

4.8★ rating across 2000+ Google reviews. Here's what Southern Utah neighbours say:

★★★★★
Vili was so nice. I had a lot of questions about my water heater and he answered every one. He also showed me how to keep my kitchen sink pipes cleaned out.
D
DianaCustomer review · St. George
★★★★★
Luke the tech was great. Penny in the office was also great. I'll be having them back in the spring to check the A/C.
B
BradCustomer review · St. George
★★★★★
I called and got a callback within 5 minutes. They walked me through how to turn off the water and arranged for a plumber to come the next morning at 8 a.m. He arrived promptly, went over my options, and the whole process took about 3 hours. I'd definitely use them again.
V
Verified Angi customerWater heater install · St. George
Serving Southern Utah

We cover the whole corner - St. George and every town around it

Walker runs 20+ service vehicles across Southern Utah, which means someone is almost always close to your street. Family-owned and based in St. George since 2002.

Not sure if we cover your area? Call (435) 222-0340 - we almost certainly do.
St. GeorgeHQWashingtonHurricaneIvinsSanta ClaraCedar CityLa VerkinToquervilleSpringdaleApple ValleyLeedsEnoch

The Walker Satisfaction Guarantee

If you're not happy with our work, we'll come back and make it right - no arguments, no excuses. 23 years in Southern Utah means we earn your trust on every single job, not just the first one.

Call (435) 222-0340

Get your free in-home HVAC estimate

  • Free estimate - no obligation, no pressure
  • Proper Manual J load calculation · sized for your home
  • 5-yr labour warranty + up to 10-yr manufacturer warranty
  • Financing available - spread the cost monthly
Or speak with a real person 24/7: (435) 222-0340

Same-day callback during business hours · Live dispatch 24/7

HVAC installation - FAQs

The questions homeowners ask before choosing an installer for a whole-system replacement.

How long does the install take?
Most whole-system HVAC installs are completed in a single day (4-8 hours). Larger or more complex installs (e.g. ductwork modifications, electrical upgrades) may take 1-2 days. We tell you the expected timing in your written quote.
How do you size the system properly?
We perform a Manual J load calculation - the industry-standard method. Factors include home size, insulation, window orientation, number of occupants, ductwork condition, and Southern Utah's climate. We don't 'match the old unit' - we size for your actual home.
How much does a complete HVAC system cost?
Depends on tonnage, efficiency rating, system type (split AC + furnace, heat pump, or hybrid), and any ductwork/electrical work needed. Free in-home estimates give you a transparent written quote - no guessing, no surprises.
Do you offer financing?
Yes. We partner with financing providers so you can spread the cost over monthly payments. Many homeowners find the monthly cost lower than what they were paying in repairs and inflated energy bills.
What's the difference between AC + furnace, heat pump, and hybrid?
AC + furnace is the traditional split - cooling in summer, gas heat in winter. Heat pump does both with one system, highest efficiency. Hybrid uses heat pump for mild days, gas furnace for cold snaps - best of both. A Walker tech will help you decide based on your home and energy goals.
Will you handle permits?
Yes. Where permits are required, we pull them and coordinate inspections. Permits are included in your quote - we don't skip this step the way some discount installers do.
What warranty comes with the install?
5-year labour warranty from Walker. Up to 10-year manufacturer warranty on the equipment (varies by make and model). We register the manufacturer warranty on your behalf - some installers skip this and the homeowner loses coverage.
Can you install if my current system has failed?
In most cases, yes - often within a day or two. Our trucks carry common sizes. Call our line and we'll work to schedule you fast. We treat dead-system situations as urgent.
Will the install be disruptive?
Most installs take a single day. We protect floors and surfaces, bring our own tools and equipment, and clean up before we leave. Walk-through with the homeowner before we go - no surprises.
Why should I choose Walker over a cheaper installer?
We're not the cheapest - we're the ones who get it right the first time. Proper load calculation, quality installation, permits, full warranty registration, and a 5-year labour warranty. Cheap installs often fail in 3-5 years. Walker installs last 15-20+. We treat all of our customers like family - this is our community too.

Ready for reliable, efficient HVAC?

Free in-home estimate. Proper sizing. Installed right the first time. Financing available.