404 Main St.McNabb, IL
815-882-2111 • 800-644-9238
24/7 Emergency Service Available
About Grassers

LaSalle & Bureau Counties Largest Plumbing, Heating and Air Conditioning Contractor

Award Winning Plumbing and HVAC Services.

Serving – LaSalle, Ottawa, Princeton, Peru Spring Valley & Beyond.

Grassers Plumbing & Heating is a reliable air conditioning, heating, plumbing company located in McNabb IL. serving the Illinois Valley for over 60 yrs. Our family owned and operated company is friendly, reliable, and affordable to bring your home or business total comfort.

SEE SOME OF OUR AMAZING REVIEWS!

WHY Grasser’s Plumbing & Heating?

24/7 Emergency Plumbing & HVAC

With over 40 trucks on the road at any given time our technicians and plumbers can respond to your emergency – fast. Our plumbers and HVAC technicians offer 24/7 emergency repair service, whether it’s a holiday, weekend or at 3:00 am, our friendly technicians can be there when you need service most.

Local Reviews

Rated 4.9 out of 5 stars based on 419 customer reviews

Map of Earlville, IL

Great staff




Stopped in for an appliance and heather helped me. Very smart, friendly and knowledgeable. grassers lucky to have her.


Map of LaSalle, IL

happy customer




always a pleasure to deal with grassers


Map of Peru, IL

5 stars!




Always and will forever use!


Map of Ottawa, IL

Always clean & fast




In and out and fixed problem! Picked up and left my area cleaner then was.


Map of Ancona, IL

Great customer service




Called in and spoke to a lady who got me right in for a service call and the nicest young man had come out. Thank you Grassers for your service as always.


Map of Granville, IL

Thank you!




Thank you. Jimmy was just the nicest man. I am so pleased with Grassers service. I will be sure to use you again:)


Map of Princeton, IL

Great help




I called and talked to Heather, what a pleasure dealing with her and she got the job done. Great asset to Grassers


Map of Spring Valley, IL

Great Installers




Pete & Joe were excellent. Couldn't be happier. My new furnace and air installed perfectly and they even cleaned up after left. Very happy.


Map of Streator, IL

Great work




Love Grassers and their crew. Always friendly, clean and efficient!


Map of DePue, IL

Great work




Very impressed with your plumber Ken, did a great job and super friendly!


Heather D.

Heather D.

Near Earlville, IL 60518
Grasser's Plumbing .

Grasser's Plumbing .

Near LaSalle, IL
Grasser's Plumbing .

Grasser's Plumbing .

Near Peru, IL
Heather D.

Heather D.

Near Ottawa, IL 61350
Matt B.

Matt B.

Near North Utica, IL 61373
Heather D.

Heather D.

Working on appliance

Near North Utica, IL 61373
Kevin D.

Kevin D.

Checking in

Near S Randall Rd, Elgin, IL 60123
Heather D.

Heather D.

Near Ancona, IL 61311
Grasser's Plumbing .

Grasser's Plumbing .

Near Granville, IL 61326
JACOB H.

JACOB H.

Drain plugged on geo cleared and tested

Near County Rd 775 E, Walnut, IL 61376