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 379 customer reviews

Map of Spring Valley, IL

Quick and Clean




Tec that came out was friendly and got the job done in hardly any time and was very clean. When he left didn't even know someone was in my house.


Map of Hennepin, IL

Hardworking company




Guy that came out to do install was kind and worked very hard to get job done. Very impressed.


Map of Peru, IL

Best Service Ever




Company was amazing to work with. The guys that installed appliances did fantastic, highly recommend.


Map of Princeton, IL

Great plumbers




Had a plumber out today to install a new toilet and great experience as always!!!! Highly recommend this company. Such trustworthy and honest people.


Map of Ottawa, IL

Amazing help as always




Heather helped me with my appliance and as always got the best care, treatment and service! HIGHLY RECOMMEND:)


Map of Ottawa, IL

Best company ever




Had an amazing experience with this company. They are amazing to work with and always there to help me when other people suck.


Map of North Utica, IL

Best Appliance Install and Service




Best company ever dealt with. First worked with Heather who was so knowledgeable in appliance sales. Second, had the Matt and his helper out to install. Super clean and efficient. Also had them out for other appliances in my home and they very smart with the issues. Tell me what problem is and the best solution, they don't try to get an extra buck. Love them.


Map of Spring Valley, IL

Helpful as always




Had a cooktop installed and was very good and happy with everything. The company had sent the wrong one but Grassers re-ordered and even gave me a discount for the inconvenience. Super nice and honest of them to go out of their way for their customers.


Map of LaSalle, IL

Perfect Install




Had a dishwasher installed and they were in and out, clean, such great service!


Map of Ottawa, IL

Amazing Company




I have dealt with Grassers for years and keep coming back! They are honest and trust worthy people. Really care about the customer!!!


JACOB H.

JACOB H.

Checking roof top unit changing filters and belts

Near Village Center Dr, Burr Ridge, IL 60527
JACOB H.

JACOB H.

Cleaned flame sensor on south furnace

Near St Bede Ln, Spring Valley, IL 61362
JACOB H.

JACOB H.

Replaced ignitor on north furnace

Near St Bede Ln, Spring Valley, IL 61362
JACOB H.

JACOB H.

Central vacuum unit has a bad motor

Near 2930 N Ave, La Moille, IL 61330
JACOB H.

JACOB H.

Doing yearly maintenance to tankless water heater

Near 32nd St, Peru, IL 61354
JACOB H.

JACOB H.

Replacing section of leaking baseboard radiator.

Near E 2350th Rd, Marseilles, IL 61341
JACOB H.

JACOB H.

Running new thermostat wire for package unit mice chewed wires

Near E 28th Rd, Marseilles, IL 61341
JACOB H.

JACOB H.

Checking over package unit for proper operation

Near Douglas Rd, Aurora, IL 60503
JACOB H.

JACOB H.

Replaced burned wire nut on water heater

Near N 2650th Rd, Ottawa, IL 61350
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JACOB H.

Water heater only getting half power fuse block was loose

Near E 1379th Rd, Streator, IL 61364