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 486 customer reviews

Map of Princeton, IL

Professional Friendly Service




Diagnosed furnace problem quickly. Had replacement part in his truck. Got our furnace running quickly


Map of Mendota, IL

Happy customer




Always go to Grassers for all my service needs! Thanks for everything:)


Map of Princeton, IL

Great company and service




Heather was a great sales clerk and gave me exactly the information I needed!!


Map of Ottawa, IL

Very happy with appliance and service




Great price on my Maytag refrigerator and knowledgeable and amazing staff


Map of Tonica, IL

Amazing sales clerk




Heather was so knowledgeable I can’t say enough good things!! Exactly what I been looking for in honesty and brains!!


Map of Buda, IL

Superior service, quickly answered the call





Map of North Utica, IL

Quick Response




We were under a polar vortex and our furnace was not working properly. I called Grasser’s and within a couple hours they were here. Our service technician was knowledgeable and shared with me some tips to keep my furnace running well. Excellent service overall.


Map of Peru, IL

Great





Map of Varna, IL

Grasser's Great Service




Our serviceman was fast, efficient, and respectful of our home and made sure he didn't track snow through the house. Very nice young man.


Map of Ottawa, IL

Good service





JACOB H.

JACOB H.

Replacing boiler pump

Near N Woodland Ave, Oglesby, IL 61348
Trent G.

Trent G.

Replacing a heat exchanger

Near 1900 N Ave, Princeton, IL 61356
Princeton, IL - Replacing a heat exchanger
JACOB H.

JACOB H.

Installing spark box control for fireplace

Near White Pines Dr, Dixon, IL 61021
JACOB H.

JACOB H.

Reprogramming remote for fireplace.

Near White Pines Dr, Dixon, IL 61021
Heather D.

Heather D.

Nice sunny day in McNabb...but still cold!!

Near Main St, McNabb, IL 61335
KD .

KD .

Checking out issue in Aurora il

Near Orchard Rd, Aurora, IL 60506
Doug H.

Doug H.

Install water heater

Near Schuyler Dr, Peru, IL 61354
Trent G.

Trent G.

Changing your filter makes your furnace happy and run properly. This was an unhappy furnace

Near Park Ave E, Princeton, IL 61356
Princeton, IL - Changing your filter makes your furnace happy and run properly. This was an unhappy furnace
Matt O.

Matt O.

Installing new appliances for another location at Heritage Harbor

Near N 2753rd Rd, Ottawa, IL 61350
Ottawa, IL - Installing new appliances for another location at Heritage Harbor
Trent G.

Trent G.

No heat

Near IL-26, Princeton, IL 61356