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 360 customer reviews

Map of LaSalle, IL

So clean and got the job done




Scott came and worked hard with my leaky pipes. He was so clean and when done I didn't even realize he was there. Was in and out in no time.


Map of Princeton, IL

Best company to work with




Heather helped me with my new appliance. She was helpful and so easy to work with.


Map of Ottawa, IL

Friendly and Full of KNowledge




Can't say enough great things about Heather. So friendly, upbeat and knowledgeable. Made buying an appliance so easy.


Map of Mendota, IL

Great company




Such an amazing company to work with. From the beginning dealing with the office over the phone to my installer. Can't say enough great things about them. Price was best around also:)


Map of Streator, IL

Friendly and efficient




Technician was very nice and informative. Highly recommend Grassers to anyone needing service!!!


Map of Peru, IL

Installation flawless




Pete was an excellent furnace installer. Clean and didn't even know he was here.


Map of Ottawa, IL

Wealth of knowledge




Had Heather help me with my kitchen remodel and was such a joy. Very knowledgeable and friendly.


Map of Naplate, IL

Great service




Always will come back to Grassers. They sent someone out after I had no heat and got me taken care of. Even let me pay half now and other half next month! Amazing company to deal with:)


Map of Ottawa, IL

Sink Install




Just had Ken here and he was excellent. I love Grassers and all their workers, so pleasant and easy to deal with. Merry Christmas!


Map of Hennepin, IL

Happy I stopped in.




Stopped in for a new dishwasher and very happy and pleased with service I got from Heather. Very nice and accommodating and took her time with me.


Heather D.

Heather D.

Near Mendota, IL 61342
Pete S.

Pete S.

Near Sublette, IL 61367
Scott O.

Scott O.

Near LaSalle, IL 61301
Heather D.

Heather D.

Near Princeton, IL 61356
Heather D.

Heather D.

Near Ottawa, IL 61350
Pete S.

Pete S.

Near Mendota, IL 61342
Kevin D.

Kevin D.

Hello Aurora!

Near Courtyard Cir, Aurora, IL 60506
Gregory D.

Gregory D.

Near Streator, IL 61364
Pete S.

Pete S.

Near Peru, IL
Heather D.

Heather D.

Near Ottawa, IL 61350