Grassi Refrigeration
HVAC Services in Walla Walla
Grassi Refrigeration specializes in Carrier HVAC installation, repair, and maintenance. Proudly serving Walla Walla and the surrounding areas, we deliver reliable HVAC solutions to meet your home's needs.
Experience and Certifications
Experience and Certifications

Financing Available
We offer flexible financing options for your new Carrier product or system. With approved credit, you can enjoy convenient monthly payments, competitive interest rates, and online bill pay.

Financing Available
We offer flexible financing options for your new Carrier product or system. With approved credit, you can enjoy convenient monthly payments, competitive interest rates, and online bill pay.
HVAC Repair and Services

AC Repair & Service
We specialize in fast, reliable air conditioner repair and service to keep your home cool and comfortable. Whether it’s a minor fix or a major repair, we're here to ensure your AC runs smoothly when you need it most.

Furnace Repair & Service
We provide expert furnace repair and service. Our skilled technicians are ready to quickly diagnose and resolve any issues, keeping your home warm and comfortable year-round.

Heat Pump Repair
Count on us for dependable heat pump repair and service to keep your home comfortable year-round. Our experienced technicians troubleshoot issues, perform timely repairs, and ensure your system is operating at its highest efficiency.

HVAC Maintenance
We offer annual HVAC maintenance to keep your system running efficiently and help prevent unexpected breakdowns. Through a thorough inspection and tune-up, we ensure your heating and cooling system is ready to keep you comfortable all year long.
HVAC Installation Services

AC Installation
Enhance your home’s cooling and energy savings with our expert AC installation services. We install high-performance Carrier air conditioners and customize each system to match your home’s needs, helping ensure dependable comfort all summer long.

Furnace Installation
Stay warm and worry-free with our professional furnace installation services. We’ll guide you in selecting the best Carrier furnace for your home and complete the installation with expert care and precision.

Heat Pump Installation
Upgrade your home’s comfort and efficiency with our professional heat pump services. Our team installs top-quality Carrier heat pumps and tailors every system to fit your space, delivering reliable performance through every season.

HVAC System Installation
We provide expert HVAC installation to keep your home comfortable year-round. Whether you're replacing your current system or installing HVAC for the first time, we'll help you choose the right solution for your needs and handle the installation with precision and care.
Trusted HVAC Professional in Walla Walla
Air conditioner
June 04, 2025
Excellent service -- fast, knowledgeable, professional!!
RENEE
Expertise (5)
Solve Problems (5)
Service (5)
Great local business
March 06, 2025
Every department was wonderful and very nice to work with.
DEAN
Expertise (5)
Solve Problems (5)
Service (5)
Grassi Review
August 28, 2024
We asked Grassi Refrigeration to give us a bid on a new A/C after they informed us that our old one needed to be replaced. When we bought our home, six years earlier, we decided to keep them on because they had been the company recommended by the previous owners. In those six years we felt that they had done a good job with the maintenance of both our A/C and our gas furnace. The owner of Grassi came out, took a good look, and then sent us two bids. Both bids included "modifying the ducting to fit the new furnace," which we assumed, in our case, meant the A/C. We assumed incorrectly. After the installation last September, the noise coming through our eight ceiling vents was loud to the point of being invasive. We immediately told the installer that the noise was unacceptable. His first response was that it seemed in the normal range to him. He then suggested that we should give it a month or so and most people get used to it. When we persisted, their projects manager came out. At first, he repeated the words of his installer, that most people get used to it. I took him to three different vents, the dining room and two in the living room, and explained that listening to someone in normal conversation, trying to have music at a normal level, calling to someone in the kitchen, were all now impossible. He conceded my point, suggested some things that might quiet it, but made no offer to actually do the work. Finally, I told him that, "if we have to, we'll pay for it." They sent us a bid that included two "options." The first was to enlarge the return air duct to proper size with new flex duct. The second was to enlarge and replace ALL supply runs with flex duct. When the technician did the work, the noise level didn't drop after option one. He then performed option two on the three vents that I had shown the project manager. They quieted down significantly, and we told him that they were acceptable. He explained that our new unit, the Carrier Performance Efficient 3 ton 16 SEER, required a certain air flow from the A/C through to the vents, "or it won't work properly." Then, it being late in the day, he turned off the system and left. When it became apparent that they had considered the job complete, I went back and took another look at the original installation bid and the subsequent duct work bid. My wife and I were both of the opinion that a bid should mean that the A/C should have worked properly after the work of the original bid. Clearly, that didn't happen. We decided to send a letter objecting to the extra costs of vent work but put it with the check that would pay for it. In the letter, I pointed out what the technician had told us, that the unit wasn't going to work properly without the increased air flow. The check was cashed, and they made no attempt to contact us. This year, when the weather warmed in late spring and we turned on the A/C, we decided that we didn't want to live with the noise level still coming from the remaining five vents that Grassi had not done. We also decided that we were finished trying to do business with them. So, we contacted another company in the area and explained the situation. They came out, put in the five flexible ducts in two and a half hours, and charged us half of what we had paid Grassi for their partial duct work. As they were leaving the job, loading up to go, we realized that what we were hearing, a very light fan, was the actual air conditioner operating the way it was meant to. We laughed and laughed. Justification! We were not being unreasonable. We were thrilled! We still are.
Christopher
Service (1)
Solve Problems (1)
Great installation and service.
July 10, 2023
The installing crew showed up early in the morning, and was done by early afternoon. Installation was done very well both inside and out. The unit functions great and is super quiet inside and out.
Steve
Expertise (5)
Service (5)
Solve Problems (5)
Excellent service and Great pricing.
April 03, 2023
Great company to work with. Very professional, and great pricing
James
Expertise (5)
Service (5)
Solve Problems (5)
Quick service & great communication
March 05, 2022
Quick service, great communication
Crystal
Expertise (5)
Service (5)
Solve Problems (5)
Great company to work with
February 26, 2022
Competent, friendly, great workers
Graham
Expertise (5)
Service (5)
Solve Problems (5)
Loyal Repeat Customer
July 10, 2021
Been with Grassi over 20 years. Always happy with service, expertise and fairness. Hot wave demand for their services resulted in a wait of a few days but definitely worth it.
Terence/Cathy
Expertise (5)
Service (5)
Solve Problems (5)
Excellent
June 16, 2021
on time and done well
Harold
Expertise (5)
Service (5)
Solve Problems (5)
The A Team!
October 05, 2020
This is an old house (built 1913), and hence it offers a myriad of challenges when performing upgrades. The Grassie team addressed each issue with professionalism and expertise! Our new HVAC system was installed meticulously as demonstrated by the attention to detail and an excellent end result.
Ellzabeth
Expertise (5)
Service (5)
Solve Problems (5)
Great Job!
June 18, 2020
Very pleased
Robert
Expertise (5)
Service (5)
Solve Problems (5)
Excellent
June 18, 2020
Everyone involved was very pleasant to work with.
Robert
Expertise (5)
Service (5)
Solve Problems (5)
Execellence in action and words
June 12, 2020
Easy to work with, professiona in all respects. Highly recommended.
Ronald
Expertise (5)
Service (5)
Solve Problems (5)
New air conditioner and furnace
August 15, 2018
fast, neat, clean, nice guys, work together, very happy!
Frank
Expertise (5)
Service (5)
Solve Problems (5)
NEW AC UNIT
August 03, 2018
Installed new AC unit in the time table as was quoted. Installers worked very well. Had to redo one small problem, but came back as quickly as possible and corrected it.
John
Expertise (5)
Service (5)
Solve Problems (5)
replace old furnace
January 09, 2018
they did and awesome job
Ed
Expertise (5)
Service (5)
Solve Problems (5)
New Furnace/AC
November 29, 2017
Install of new furnace/AC
Lori
Expertise (5)
Service (5)
Solve Problems (5)