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Home
About Us
Areas We Serve
Blog
Media Library
Coupons
Reviews
Contact Us
Air Conditioning
AC Installation & Replacement
AC Tune-Ups
AC Service & Repair
Comfort Club Membership
Ductless AC
Furnaces
Heating Service & Repair
Heating Installation & Replacement
Heating Tune-Ups
Comfort Club Membership
Boilers
Plumbing
Drain Cleaning
Drains & Sewer Lines
Leak Detection & Broken Pipe Repair
Sewer Services
Water Heaters
Comfort Club Membership
Electrical
Electrical Repairs & Inspections
Electrical Panel Upgrades
Whole-House Generators
Whole-Home Surge Protectors
Lighting
Indoor Air Quality
Humidifiers & Dehumidifiers
Air Purifiers & Cleaners
Water Filtration
Water Softeners
Kinetico Water Softeners
Drinking Water
Address
9 Shirley Ave
Somerset, NJ 08831
Map & Directions
732-412-1134
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About Guaranteed Service
(5) Videos
You’ll Become a Customer for Life
Welcome to Guaranteed Service!
See Why They Become Customers for Life!
Heating Tips
(10) Videos
What is a flame sensor and how does it work?
What is a Variable Speed Blower?
The Importance of my Furnace’s Heat Exchanger
Air Conditioning Tips
(7) Videos
Does My Air Conditioner Need a Spring Cleaning?
Do I Need Regular Air Conditioning Tune-Ups?
Why Choose Guaranteed Service for Your AC or Heating Replacement?
Water Treatment Tips
(8) Videos
Does hard water affect the pipes in my home?
How does hard water affect the Appliance in my Home?
What is the difference between Hard & Soft Water?
In The News
(5) Videos
NJ101.5- Bill Spadea Loves our Air Conditioning Tune Up
NJ101.5 - Bill Spadea Loves our Plumbing Service
NJ101.5- Bill Spadea Loves our Whole House Humidifier
