4.4 
1.2k+ *The Angi rating for Sump Pump Installation companies in Thornton, IL is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Sump Pump Installation needs.
*The HomeAdvisor rating for Sump Pump Installation companies in Thornton, IL is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Sump Pump Installation needs.
Last update on July 31, 2026
Serving Thornton, IL and surrounding areas
Approved
In business since 2009
Free estimates
Warranties offered
"Kevin, the plumber, was excellent. He explained everything and even went over care for the new pump. He even took away the old pump for recycling. GREAT JOB and the cost was very reasonable. Highly recommend Flo-Maxx!"
+77
Serving Thornton, IL and surrounding areas
Approved
Super Service Award Winner
In business since 1986
Free estimates
Emergency services offered
"He showed up that night with a pump in hand and installed and checked to make sure everything was working before he left. I had to call him because my other pump also needed to be replaced"
Serving Thornton, IL and surrounding areas
Approved
In business since 2008
Free estimates
Emergency services offered
"Drainpros always do great work and always give the best and better option to get the job done."
Serving Thornton, IL and surrounding areas
Approved
In business since 1992
Emergency services offered
Customers say: True professional
"Excellent service - Charlie was responsive regarding the quote and the service. I was notified of any potential delays and Charlie provided me with multiple options every step of the way. Service was provided in a careful manner to ensure all of my property was protected (floors, walls, etc.) and following installation of the new water heater all of the mess was cleaned up. I am very happy with the overall service and after obtaining multiple quotes I believe that the service I received from Charlie was not only reasonably priced, but was very high quality. I would take into consideration Charlie's competence along with the price when evaluating any cost estimate from him. I think he's your man if you need something difficult done - he's more than willing to make the square peg fit into the round hole."
Serving Thornton, IL and surrounding areas
Approved
In business since 2010
Free estimates
Emergency services offered
"Excellent, if I need more plumbing done in the future I'll call again."
+1
Serving Thornton, IL and surrounding areas
Approved (Corporate)
In business since 1971
Free estimates
Emergency services offered
"Had a heat pump installed. The installation went well. The installers were efficient, courteous and professional. Job well done."
Serving Thornton, IL and surrounding areas
Approved
In business since 2017
Free estimates
Emergency services offered
"Installed a sump pump in our crawling space. They were really great to work with, responded very quickly, were able to assess the project accurately and give us a very competitive quote. Was very efficient and completed the project in half a day. They were friendly and happy to answer all of our questions as well as give us a range of options. Would definitely hire again."
Serving Thornton, IL and surrounding areas
Approved
Super Service Award Winner
In business since 1979
Free estimates
Emergency services offered
"Paul was prompt, courteous and very competent. Replaced two sump pumps and installed a new Defender. Great job !"
+48
Serving Thornton, IL and surrounding areas
Approved
Super Service Award Winner
In business since 2016
Free estimates
Emergency services offered
"John the installer arrived on time, accessed the jobs R.A. Mechanical was hired to do and wrote out a fair estimate of the job. He performed the installation of a sump pump and hot water tank. Finally removing the old appliances and hauled them off. Completely satisfied with this company's professionalism!"
+63
Serving Thornton, IL and surrounding areas
Approved
Super Service Award Winner
In business since 2008
Customers say: Quick response
"Every things that these Plumbers did from greetings/conversation with me to the installion & clean up of my bathroom sink was just awesome. I would highly recommend them. The only negative remark toward Big Wrench Plumbing & Sewer is the Cost/Charge to do this was too high. Don't get me wrong everything else that was say/done to installed was just awesome."
+74
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