The people at Guthrie & Frey are very helpful. The technician arrived on time, and had our RO filters changed in no time. He was happy to show me how I can change the filters in the future, and explained each step along the way.

Jan M. – Hartford, WI

Craig came over and gave us a quote on both a water softner and RO system. He was right to the point, very friendly and a great person to chat with. He was very knowledgeable about the systems and how they work. Not only was Craig awesome but our installer Tony was equally as awesome and did a very professional install. After he was done he walked us through both systems and maintenance. Highly recommend this company over the “other” guys!

Jason K. – West Bend

Guthrie and Frey were extremely responsive to my online request for information. They were able to get me on a rent to own contract that fit my needs and installer was professional and friendly. I would absolutely recommend them to anyone!

Jacki M. – Germantown, WI

We had an iron filter system installed to remove the “rotten egg” smell from our well water which was more noticeable with the hot water than the cold. I called and they were there the same week. Installation was done quickly & very meticulously. The best part is that the unit did everything they said it would do and we have only clean, fresh smelling water every time. The unit can be paid for through a rent to own program that makes the choice to have it installed even better. We couldn’t be happier with the system or the people from Guthrie & Frey.

Dick B. – Mequon, WI

Guthrie and Frey was great to work with. They were quick and responsive to our well water concern…quickly diagnosing the issue and sharing a plan for how it could be remedied. They were able to get us on their schedule to complete the work quickly to accommodate our work schedules and were very informative with the process. Both employees that came to our home were knowledgeable, kind, and helpful throughout the process. I would highly recommend their company!

Heather B. – Slinger, WI

Guthrie and Frey is my trusty “go to” for water quality. We’ve used them to install R.O. systems in both home and office, and trust them with our home softener and iron curtain systems. Most importantly, they’re honest and won’t try to sell you something you don’t need… I also recommend them to all of my clients in need of water quality solutions.

Benjamin M. – Elm Grove, WI

Guthrie & Frey always demonstrates that they care about customer’s water quality and safety. We appreciate Jamie Anderson’s outstanding customer service in arranging a same-day technical inspection of the system and resulting a new water softener system replacement. We have experienced consistent customer service from Guthrie & Frey for 17 years. Thank you!

Philip H. – Delafield, WI

Professional responsive very technically qualified reasonably priced. We got what we paid for and more. We would recommend them without reservations.

Joe E. – Sussex, WI

Excellent customer service and installation team. We are always 100% satisfied with Guthrie & Frey.

Mike M. – Brookfield, WI

GREAT customer service! Thank you for rescuing us!

Joanne D. – Hubertus, WI

Purchased a new water softener and had it installed. Everyone at G&F I dealt with was knowledgeable, professional and exceedingly pleasant to deal with. I thought Adam, the installer did an exceptional job.

Steve H. – Hartland, WI

Excellent customer service.
Excellent value for the money.
We had a very challenging install. None the less, everything went perfectly.

Dave M. – Muskego, WI

The service was outstanding! Within less than a week they had someone look at our old water softener and then replaced it. Both employees who came were courteous. The price on the new softener was very reasonable and they offered different payment options. I would highly recommend Guthrie and Frey!

Jamee H. – Oconomowoc, WI

Excellent product and customer service. Was able to determine the correct water softener unit with one call and received quote same day. Picked up without hassle and self-installed GF40 in my new construction house in just over an hour. All the correct fittings were supplied and owner’s manual was clear. Highly recommend this Company.


Mark T. – Cedarburg, WI

Amazing experience. I worked with Craig, and after calling for a quote he dropped by to take measurements and see the layout of our basement. From the minute he entered the basement he knew the best way to set up our water softener system, and was able to provide a very accurate and well explained quote. His quote was also the most competitively priced, compared to other quotes from companies who did not bother to send anyone to measure our basement. Install happened one week after signing and was quick and easy. Everything done on-time and as agreed. Going with Guthrie & Frey was the best decision I could have made.

Robert W. – Grafton, WI

Getting the reverse osmosis was the best thing we could have done. The installation took about 2 hours. Everything was explained to us so we could understand. Extremely professional. We would recommend Guthrie and Frey to anyone.

Sheila H. – Mukwonago, WI

“Professional, efficient. Knowledgeable both before installation and after, explaining well all that they did.”

Carol R. – Hartford, WI

“Set up a water softener install for my Dad. Everything from the scheduling to the installation was excellent. My Dad was very pleased and I will recommend Guthrie and Frey to others.”

Mike F. – Brookfield, WI

“Excellent service. Staff wore booties! Carried 80lb bags to save us (seniors) some money. Very thoughtful!”

Rose K. – Cedarburg, WI

“Serviceman was friendly and shared what needed to be done and what he did. Everything was clean when he left. Appreciate his attention to details.”

Lisa R. – Muskego, WI

“Always has been an honest friendly and reliable company to do business with. No surprises prompt courteous service. I had an Iron Curtain installed three years ago I’ve had zero issues, they did a 3 years maintenance two weeks ago no surprises no issues. A pleasure doing business with this company.”

Al L. – Big Bend, WI

“Guthrie & Frey installed an Iron filter and water softener for us. They were very efficient and helpful both times they were to our home. The service department is wonderful. They definitely go the extra mile when you need help.”

Ruth H. – Waterford, WI

“Very happy with their service over the past year with our reverse osmosis system. Highly recommend them.”

Aaron S. – Colgate, WI

“Guthrie and Frey has given us excellent customer service and excellent knowledge – for over 10 years. A company to be trusted!”

Kay L. – Pewaukee, WI

“The service was outstanding! Within less than a week they had someone look at our old water softener and then replaced it. Both employees who came were courteous. The price on the new softener was very reasonable and they offered different payment options. I would highly recommend Guthrie and Frey!”

Jamee H. – Oconomowoc, WI

“Very happy with G&F’s quick response. They were willing to work with me and listened to my frustrations. Impressed with the customer service.”

Lan S.

“Very, Very happy from start to finish with Guthrie and Frey! Professional, friendly and knowledgeable! Would highly recommend. Installed a new water Softener for us.”

Gayle B.

“Excellent service, arrived on time, knowledgeable and friendly serviceman.”

Dawn A.

“Guthrie and Frey are always so courteous and knowledgeable. I feel confident in my understanding of the equipment and the job they have done each time after they leave. Thank you!”

Jennifer P.

“Great communication from their sales department. Clean and efficient installation. They couldn’t have made it easier for me.”

Molly M.

“Mike the sales guy was very good at explaining what my options were for a water softener. Once I selected the right equipment they called back within 30 minutes to schedule the install. The install guy was very professional and did great Job. Now I never have to listen to my wife say the hard water is ruining her hair!”

John B.

“Two gentlemen came to service and update my Iron Curtain system. They were on time, knowledgeable and focused. Changed a number of parts and explained what they were doing and why they were doing it. Very pleased.”

Patrick R.

“This company has the best customer service!!! They have done several projects for us including RO and water softner. They had to come back to help us with an issue which they quickly scheduled and took care of. I couldn’t be happier with the service. Thank you!”

Katie G.

“They are very attentive and responsive. They describe things in a way my wife and I can understand. They have excellent payment options. I would highly recommend.”

David E.

“Totally courteous, prompt, knowledgeable and professional. It is a pleasure dealing with Guthrie and Frey.”

Mike C.

“On time, reviewed salt needs, changed RO filter, friendly, carried salt to our destination. Thank You.”

Susan W.

“Purchased a new water softener and had it installed. Everyone at G&F I dealt with was knowledgeable, professional and exceedingly pleasant to deal with. I thought Adam, the installer did an exceptional job.”

Steve H.

“We have been using Guthrie & Frey for over 16 years. They are fantastic. Very responsive, friendly and great workmanship.”

Greg V.

“We use Guthrie & Frey for both our home and business. They are wonderful to work with; their service is impeccable! I highly recommend them for your water needs!”

Angela T.

“Wow! We have just had a wonderful experience buying a new water softener and iron filtration for our home. First off the young man who came out to the house to do the water test and make an assessment was friendly as can be and answered all of my questions in an easy to understand manner. There was no hard sell. He explained the pros and cons of different options and told me what the results would be. We enjoyed his visit so much we decided to purchase with your company. I’m thrilled to report the installation was wonderful as well! The guys who installed were super friendly, lots of smiles and great even though I had three barking dogs. LOL. They worked hard, answered my questions and cleaned up so well after they were here I couldn’t even tell what occurred. Thank you again, we will definitely recommend you to all of our friends and neighbors. Also a quick thumbs up to the nice people in the office who were great to work with as well. It’s so nice to speak with upbeat friendly people on the phone.”

Lisa H.

“Great customer service. The technicians that installed the softener unit were so patient and informative. I’ll recommend Guthrie and Frey any day!”

Justin H.

“Many thanks to Guthrie and Frey for replacing our water system today. They removed a nearly 20 year old Culligan set of equipment and replaced it in 3 hours with a brand new Iron Curtain and a 40,000 grain softener, and both systems are state-of-the-art and Wisconsin-made. Light years better! Zero pressure to “make a sale” and nothing but professionals from the consultant to the installers. Can’t say enough how awesome it was working with them.”

Bill L.