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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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Fall Special

Fall 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
“Great experience with LJ Refrigeration. From scheduling thru the service call everything was smooth and easy. Jace, the technician was great, very polite and informative.”

Kimberly Lukasik

“We won’t call any other company! LJ Refrigeration is the best of the best! They are honest, hardworking and have never let us down.”

Shelby Voss

“We’ve relied on LJ Refrigeration for all our HVAC needs for years now. They are consistently courteous, professional, knowledgeable and respectful of our property. It’s rare to find a company this reliable and honest. Thank you for always taking such great care of our homes.”

John Karabatsos

“L J has always taken great care of our unit for decades and continues to provide good service, advice and guidance as needed. They handled our replacement years ago and we will look to them for any replacement whenever that need arises again. Their honesty and integrity has been apparent in their service over the years. Paul and Jason have been a pleasure to work with.”

L Morris

“Paul was very professional, knowledgeable and kind. He answered all questions I had as a new widow unfamiliar with taking care of household maintenance .”

Mary Ann Derryberry

“Very pleased with knowledge and reasonable price of repairs. Tech was also fast, friendly and helpful with my questions . Much, much better than Rescue One that Ive been using for 3 yrs who take several hours to do maintenance on my 5 units and are much more expensive!”

Nikki Johnson

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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