Serving Macomb, Western Illinois & beyond since 1944

Pro HVAC, Plumbing, Electrical & Septic Services

Why Businesses & Homeowners Choose Hollister

✔ Over 80 Years of Trusted Service

✔ Locally Owned & Operated

✔ 100% Satisfaction Guarantee

✔ ⭐⭐⭐⭐⭐(4.9) Google Rating

✔ 24/7 Emergency Service Available

Hollister service technician repairing hvac system.

Read What Our Customers Saying

We love hearing feedback from our satisfied customers!

Denise Reed
2 months ago
Cary and Kevin did an amazing job. Went above and beyond times 10. I received excellent service and got to the root of my plumbing...
Paul Neill
3 weeks ago
Michael and his helpers very focused and very thorough. They arrived went right to work following their plan. After testing the fix cleaned up. Definitely used...
Bradley Protects
4 months ago
⭐️⭐️⭐️⭐️⭐️ Tyler Kreps did an outstanding job on our recent service! He was punctual, professional, and went above and beyond to ensure everything was completed to...

Proudly Serving Western Illinois & Southeast Iowa

Reliable. Local. Just Down the Road!

From Macomb to Keokuk, we bring dependable HVAC, electrical, plumbing and septic service to homes and businesses across the region.

MACOMBRUSHVILLEBUSHNELLCARTHAGECOLCHESTERGALESBURGMONMOUTHMT. STERLINGKEOKUK ... & beyond!

Service Area Map for HVAC, plumber services, electrician services, septic pumping, and drain cleaning.