certified company
Based on 305 reviews
Our Certification Process
Best Pick Guarantee
Verified General Liability Ins.
Verified Workers' Comp
2nd year as a Best Pick Call
"Little Tommy's Plumbing Shop's primary goal is to provide superior service and products for your home's plumbing, heating, and cooling equipment. Our technicians are committed to answering your questions directly and honestly and will solve all problems to your satisfaction. We support and stand behind all our work."

Tom Mahoney | President
Company Information
Services Offered
Little Tommy's Plumbing Shop installs, services, and repairs heating and cooling systems, including furnaces, boilers, heat pumps, humidifiers, and high-efficiency comfort systems. The company also conducts HVAC inspections, performs retrofits, and provides plumbing service and replacement.
Little Tommy's provides a one-year parts-and-labor warranty on completed work and honors all manufacturers' warranties on installations.
Company History
Tom Mahoney has worked in Chicago's North Shore since 1989. Little Tommy's was started in 2009 as a one-man operation and has since grown into an organization with fourteen employees.
The company is a certified Quality Service Contractor by the Plumbing-Heating-Cooling Contractors Association (PHCC).
Areas Served
North Shore
A selection of 305 homeowner reviews:
“Little Tommy's was great. They've done quite a few things in my house. The big project they did for me was installing a new heating and air conditioning system. They walked me through the process, they helped me with all of the paperwork, and they did an excellent job. I would definitely give them an A+. I already recommended them.”
“They've done multiple jobs, including furnace installations. I'd give the experience an A+. They take great care of my house, my plumbing, and my HVAC. I love working with them.”
“I've had them do a couple of things for me. They put a new air conditioning unit in for us. I'd give the overall experience an A+. The best things about them are their customer service, punctuality, and cleanliness.”
“I use them all the time. I'd give Little Tommy's an A+.”
“They do a great job. They do my HVAC and my plumbing, and they do a fantastic job.”
“They put in an air conditioning unit and heating unit. It was all state of the art. They did my drain once a year. They're an A+ company.”
“They're a great company. They do my heating and cooling maintenance then replaced an air conditioner. I think they've replaced a hot water heater. I think they replaced air conditioners and I had something with my radiator done. Basically all of my heating and cooling stuff. I'd give them an A+ rating. I recommend them all of the time.”
“They did HVAC work. I'd give them an A-.”
“I'd recommend them.”
“I liked their knowledge. They fixed a gas leak, and they serviced the air conditioning unit for the summer. I chose them because I'm a repeat customer. I'd say it's an A for them.”