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 440 customer reviews

Map of Morris, IL

Amazing crew




Worked with Heather on appliances and plumbing and just the sweetest ever and very knowledgeable. Their crew is also excellent and doesn’t leave when something goes wrong. They stay and help figure out the best solution when an item doesn’t fit!!


Map of Princeton, IL

Awesome Price




Heather was so nice and helpful when I stopped in. She worked with me on the pricing of my new appliance and I am so happy.


Map of Leonore, IL

Nice young man




Had Greg out and was so nice and kind to me. he did a great job and just very pleasant to be around. thank you grassers


Map of Streator, IL

Sweet girl




Had Heather on phone and was so sweet and helpful. thank you


Map of Spring Valley, IL

Awesome Guy




We had a few people and a service tech come work on my oven and the Awesome Guy found the issue.


Map of Streator, IL

100% reliable




am a new customer and had been referred to them from a friend. i will def be back. they are nice, reliable and best priced around. thank you for your fast service.


Map of Dalzell, IL

Happy customer




Had Grassers out this am to do a furnace check and clean. They did a great job, explained everything and even gave me a price on a new furnace because they noticed I had a co leak I didn't even know about. Price was better then I expected. Will be going with a new one!!!


Map of Serena, IL

Happy Happy




Very happy and love my new appliance, thank you Grassers!


Map of Lacon, IL

Love Grassers




Used Grassers for years and always happy and pleasure. Had installation crew over today to do microwave installation and it went perfectly. I knew would be a pain in the ass but they did fantastic. great crew as always!


Map of Peru, IL

Great install




Had a new washer installed yesterday and very happy with the product. Runs great and the crew did a great job.


JACOB H.

JACOB H.

Quote new furnace and ac

Near US-52, Mendota, IL 61342
JACOB H.

JACOB H.

Geothermal unit is showing low water temp

Near 800 E St, Walnut, IL 61376
JACOB H.

JACOB H.

Fixing leaky sewer vent pipe

Near US-6, Princeton, IL 61356
JACOB H.

JACOB H.

Replaced exhaust blower, cleaned flame sensor and installed new filter.

Near E Thompson St, Princeton, IL 61356
JACOB H.

JACOB H.

Installed and wired new taco zone valve control

Near S Hawthorne Ave, Elmhurst, IL 60126
JACOB H.

JACOB H.

Cleaned drain trap on furnace and flame sensor

Near N Fulton St, Lacon, IL 61540
JACOB H.

JACOB H.

Cleaned trap and flame sensor on furnace

Near S Randolph St, Princeton, IL 61356
JACOB H.

JACOB H.

Installed boiler pump and set up tankless boiler

Near County Rd 1500 E, Granville, IL 61326
JACOB H.

JACOB H.

Wiring up multi zone boiler system

Near 2nd St, LaSalle, IL 61301
JACOB H.

JACOB H.

Rewiring in-floor heat system. Actuators and pumps

Near S Hawthorne Ave, Elmhurst, IL 60126