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LJ Refrigeration Co.Day & Night Heating & Cooling Products dealer
Saguaro cactus and the McDowell Mountains at golden hour in Scottsdale, Arizona

Scottsdale, AZ · Same-Day Service

Your AC fixed.Today.

Licensed, insured, and on time since 1981. No upselling, no surprises — just honest HVAC work from a third-generation family business.

Schedule My Service Call (480) 948-5004
Serving the valley since 1981
45yServing the valley since 1981
BBB rated for over 40 years
A+BBB rated for over 40 years
Google customer rating
5.0Google customer rating
Generation family-owned
3rdGeneration family-owned

Our Services

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Seasonal Special

$83 Check-Out

$83 first unit · $40 per additional unit

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Exclusive Financing Opportunity

0% APR × 60 mo

August 1 – November 20, 2026 · On approved credit

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The LJ Refrigeration family team standing with their lettered service van in the Sonoran Desert at golden hour
The Desert Standard

Straight answers, same-day service, and a handshake that still means something.

Sixty summers in this business taught us exactly what a desert home needs — and what it doesn't. Here's the standard every LJ visit is held to.

Same-Day HVAC Service

When it's 112° outside, tomorrow isn't an answer. Same-day appointments and emergency service availability keep your home livable.

No Upselling. Ever.

You get straight answers and honest options — repair when repair makes sense, replacement only when it truly pays off.

Licensed, Bonded & Insured

ROC #097719 · ROC #097724 — and a BBB A+ Rated for 40+ Years to show for four decades of doing it right.

Financing That Fits

Financing options to fit your budget, so a failed system never forces a bad decision in a hot week.

BBB A+ · 40+ YearsDay & Night ELITE DealerROC #097719 · ROC #097724Family-Owned & Operated
Why three generations keeps its promises
Day & Night heating and cooling equipment lineup — condensers, furnaces, and the Observer thermostat
Day & Night Heating & Cooling Products logoFeatured Manufacturer

Day & Night ELITE Dealer — equipment we'd put in our own homes.

Energy Star-rated heating & cooling equipment, installed by an ELITE dealer. ELITE Dealer status means factory-trained installation, properly sized systems, and equipment built for triple-digit duty — backed by a family that answers the phone when you call.

  • ELITE Dealer installation standards
  • Energy Star-rated systems for desert efficiency
Ask About a New System
Our Story

Born in Minnesota winters. Proven in Arizona summers.

  1. 1963

    Minnesota winters

    Lyle and Karyl Engbarth start the company selling and repairing heaters — where a dead furnace in January isn't an inconvenience, it's an emergency.

  2. 1981

    The Arizona chapter

    The family brings that winter-forged work ethic to the Sonoran Desert, and LJ Refrigeration becomes the trusted name in Valley heating and air conditioning.

  3. Today

    The third generation

    Owners Paul and Jennifer Coen carry the standard forward — same family, same phone number philosophy: answer, show up, do it right.

Read the Full Story Meet the Family
Members of the LJ Refrigeration family standing beside the company's lettered service van

What your neighbors say

5.0 · Google Reviews
“Jason is a true professional. Arrived early and took care of the issue as well as advised what I could do personally to help extend the life of the units. The price was well below what I expected. Thankyou Jason.”

Steve Miller

“Been using this company for 6 years, No BS, honest and fair pricing. He fixed a Lenox condenser unit that is 28 years old today. And in fairness, he said next time it will probably have to be replaced. I feel like they’ll actually diagnose and repair as opposed to just jumping straight to a new unit install (if possible). Use with confidence.”

Evan K

“Prompt, professional and knowledgeable technicians. Had my system running perfectly very quickly and smoothly. Very clear communication on what they fixed and what to expect.”

Jacob Smith

“Best service around, I only use LJ. All around good people who don't try to sell you on things you dont need”

Matt McD

“they are a great company. I have used them ever since I bought my home. I have also recommended them to my friends due to the lack of trying to oversell services and products.”

Tony Zollars

“We have used LJ Refrigeration to be the best in the business. They are honest, professional, efficient and care about our family's comfort. I highly recommend using them for all your HVAC needs!”

Shantha Wilson

Reviews & Ratings
Map of LJ Refrigeration's Northeast Valley service area with pins on Scottsdale, Paradise Valley, Cave Creek, Carefree, Fountain Hills, Rio Verde, and North Phoenix
Where We Work

The Northeast Valley is home turf.

From Scottsdale to Rio Verde, we've been driving these same roads since 1981 — which means we know exactly what desert sun, monsoon dust, and hard water do to a comfort system out here.

Every Area We Serve Don't see your town? Call (480) 948-5004
Financing

Flexible financing, zero stress.

Upgrade your system or handle an unexpected repair with convenient monthly payments through Synchrony and Wells Fargo — comfort now, without the upfront strain.

Explore Financing Ask Us What Applies
In partnership withSynchrony financingWells Fargo financing
5.0★ Google ratingBBB A+ Rated for 40+ YearsROC #097719 · ROC #097724
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