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 405 customer reviews

Map of Peru, IL

best prices around




I have dealt with grassers for years. ended up using another local company for a service grassers didn't provide and I was blown away at their pricing. i called to even say seriously and they laughed and said it is their pricing. I should be writing this review on their page but I want everyone to know grassers is amazing and offers the best pricing around.


Map of Mendota, IL

fast, reliable & affordable




great company to do business with. Always come out right away and treat you fair. always been happy with grassers


Map of McNabb, IL

Great Service




Called in at 7 am and they were here at 7:30! Thank you Grassers our AC is up and running beautifully:)


Map of Princeton, IL

What a crew!!




I am starting off by saying I have done business with Town and Country for quite some time. I have had some negative experiences with them so thought would give Grassers a try. Why haven't I done business with them from day one. They are such an honest and customer service friendly business I can't imagine doing business with anyone else. GREAT BUSINESS and overall amazing staff:) THANK YOU GRASSERS


Map of Princeton, IL

one happy customer




Had Aaron out for our air conditioner and very happy I used Grassers. First time customer and lifetime customer now 🙂


Map of Streator, IL

Great Sales Clerk




Stopped in for a new faucet and Heather waited on us. What a great asset to their business. She was so friendly, knowledgeable and helpful with our purchase. Can't wait to have installed:)


Map of Tiskilwa, IL

Love Grassers!




Have used Grassers for the past 50 years and cannot say enough good things about them. A wonderful family owned business that treats you fair and so great to deal with. HIGHLY RECOMMEND


Map of Peru, IL

Great technician




Had Jacob out for our Air Conditioner. He explained everything well and took the time to work on, never rushed and just great guy. Very happy and pleased customer


Map of LaSalle, IL

Great Service




Had a plumber out to replace my toilet. Wow what a difference from new vs what I had. Amazing company, was in and out!


Map of Granville, IL

Great service




Matt came out and found my unit shot and quoted us a new one. BEST PRICES AROUND can't beat Grassers. One happy customer:)


JACOB H.

JACOB H.

Ac no cool has bad blower motor

Near 5th St, LaSalle, IL 61301
Grasser's Plumbing .

Grasser's Plumbing .

Near Peru, IL
Grasser's Plumbing .

Grasser's Plumbing .

Near Mendota, IL 61342
Grasser's Plumbing .

Grasser's Plumbing .

Near McNabb, IL 61335
Grasser's Plumbing .

Grasser's Plumbing .

Near Princeton, IL 61356
Heather D.

Heather D.

Near Princeton, IL 61356
Heather D.

Heather D.

Near Streator, IL 61364
Scott O.

Scott O.

Near Tiskilwa, IL 61368
JACOB H.

JACOB H.

Near Peru, IL
Heather D.

Heather D.

Near LaSalle, IL 61301