Altoona, WI
(715) 834-5409

What the valley says

4.7 out of 5 from 62 Google reviews.

That figure is Google’s, not ours, drawn from 62 reviews on our listing. Our Facebook page separately shows 86 percent of visitors recommend us, out of 10 reviews there, which is a recommendation percentage rather than a star average and we are not folding the two together. Below are five of the Google reviews in full, followed by ten testimonials collected over the years directly from customers.

A residential condenser beside a house on a still foggy autumn morning

Verified on Google, five stars each

Straight from the listing

I cannot stress how great our experience with Jason Barnes has been. We are so glad we called Tweet Garot about a basement plumbing issue that we had been previously told would require opening up the wall of a staircase. Jason was able to use his many years of experience to quickly diagnose the issue... Matt and Nick came to the house on the day of service to drain the heat line and replace the pipes. They are both highly knowledgeable and awesome to work with.
Rachael Green · Google review, five stars
Highly recommend. These folks are great to work with. I had two occasions, different bathrooms that needed toilet repairs. Their service people are friendly, professional and efficient. Thank you Jason, Nick, and David.
Deb Loiselle · Google, five stars
My furnace kept quitting... Certified was great about taking my calls, getting someone there as soon as possible, and the technician was motivated, knowledgeable, and did a great job.
Christine Warloski · Google, five stars
The techs at Certified have been fantastic to work with. They have serviced issues we've had with Plumbing, Heating and Cooling... always have been courteous and efficient.
Phil Salwasser · Google, five stars
The technician was extremely helpful and showed my husband how to do some basic maintenance and inspection... They're a little more expensive than some other vendors but you definitely get what you pay for. Top notch service.
Ali Hamblin · Google, five stars

Collected over the years

Ten more, in customers’ own words

These came in directly, by letter and by phone, over the years. No star rating came attached to them, so none is added here.

  • The tech from Certified (Dave Weiss) was very good! I would like to go to a cheaper place but I also want to know the work is done properly...that's why I call Certified Inc.!

    Mike W.

  • We want you to know that we are very pleased with the work performed to correct our well leak and the relocation of our hot water heater, neutralizer, and pressure tank. What a great crew you have!

    Dan and Karen M.

  • Certified Inc. workmanship and service has always been terrific and their prices are fair and reasonable... I've been a customer of Certified Inc. for over 30 years and have always been very pleased!

    Tom K.

  • The team at Certified that did the installation of my furnace went above and beyond... Every aspect of this service was absolutely professional and quality of work is unparalleled.

    Scott H.

  • The furnace man, Brad, who came to check my furnace... was very thorough... between himself and Phil Woodford, they did a fantastic job.

    Margie H.K.

  • I just wanted to let you know how happy I was with the work done on my new home... I will be recommending you to my family and friends.

    Mike, Eau Claire, Wisconsin

  • We just wanted to say thank you for coming to check out our furnace on such a short notice.

    Richard and Bonnie, Eau Claire, Wisconsin

  • Your man did great work!

    Bill and Vonnie, Eau Claire, Wisconsin

  • Enclosed is payment for our new furnace, a coil, and new water heater installation... thank you for your efficient, professional, and extremely courteous staff.

    Shane and Vicki, Phillips, Wisconsin

  • The builder liked your work so much he has hired you to do the work in his next two homes.

    George, Eau Claire, Wisconsin

350 Sunday Drive, Altoona

Ready to add your own?

Free estimates, priced by the estimator who visits. Call the shop or send the details and an estimator will call you back.