You Will Become a Customer for Life Guaranteed

Plumbing, Heating, Cooling, Water Treatment, Electrical & Indoor Air Quality Service in South Plainfield, NJ

Excellent Service, Guaranteed!

With Guaranteed Service on your side, you can expect nothing but the most exceptional, affordable service. Our team always goes the extra mile to ensure your home runs smoothly and your family is comfortable.

Our heating, cooling, water treatment, electrical, and indoor air quality services in South Plainfield include:

  • HVAC installations
  • HVAC repair
  • HVAC tune-ups
  • Boilers
  • Drain and sewers
  • Ductless air conditioners
  • Leak detection
  • Pipe repair
  • Water heaters
  • Electrical inspections
  • Electrical repair
  • Whole-house generators
  • Surge protection
  • Lighting
  • Humidifiers
  • Dehumidifiers
  • Air purifiers
  • Air cleaners
  • Water filtration
  • Water softening

Reach out to our team online or by calling (732) 412-1134 to request an estimate for service.

Signs You Need Drain Cleaning

Drain cleaning is one of the most important maintenance services. From clearing away clogs to helping your pipes flow freely to preventing pipe leaks and bursts, drain cleaning helps your entire plumbing system stay in better shape for longer. On the other hand, skipping out on routine drain cleaning can cause a lot of problems for your system down the line. In order to avoid dealing with unnecessary wear and tear and repairs, it is a good idea to become familiar with the signs that you need to call our South Plainfield plumbing professionals.

You need to schedule drain cleaning if:

  • You can hear gurgling or bubbling sounds coming from your drains
  • There are foul smells coming from one or more of your drains
  • Your toilet is frequently clogged or overflowing
  • Your sink or shower is often slow or clogged
  • Water rises in your sink or shower

Using advanced camera and drain cleaning technology, our plumbers can make sure your pipes are free of clogs and blockages. Simply reach out to us today to make an appointment and request an estimate.

Benefits of Replacing Your HVAC System

Are you considering replacing your old, inefficient heating and cooling system but aren’t sure if it’s worth it? Installing new HVAC systems can make a huge difference for your home and your family. Some of the key benefits of replacing your HVAC system include better energy efficiency, reduced environmental impact, lower monthly energy bills, increased control, and improved indoor comfort. Technology has come a long way since your HVAC system was installed and newer systems are designed to work better, last longer, and keep your home more comfortable than ever before.

Our team understands that installing a brand-new heater or air conditioner might seem like a monumental task, but we are here to make it easy as can be. As a leader in the industry, our South Plainfield heating and AC techs have access to the latest and greatest systems on the market. We will work with you to understand your comfort needs and select the perfect system for your home and family.

Do I Need an Electrical Panel Upgrade?

Your electrical panel is responsible for safely distributing power to each of your home’s appliances. When your panel isn’t functioning properly, you can experience frequently tripped circuits, blackouts, flickering lights, damaged appliances, and even a fire. Because a faulty electrical panel can cause a lot of damage and put your family and home at risk, it is important to replace it right away.

If you notice any of the following signs, you need an electrical panel upgrade:

  • It’s been more than 30 years since your panel was installed
  • Your power shuts off if you plug in one too many appliances
  • Your family uses a lot of extension cords and power strips
  • The electrical panel is visibly rusted
  • You smell burning plastic or wires
  • Your appliances or lights make buzzing sounds
  • There are sparks when you plug in certain appliances

Our South Plainfield electricians are here to make sure your home is safe and your electrical system is functioning properly. If you are having issues with your panel, we are here to conduct a full safety and performance test, assess the condition of your panel, and explain your options to you. If a replacement is necessary, you can count on us to get the job done quickly, safely, and effectively.

Enjoy Our Ultimate Guarantees

At Guaranteed Service, nothing matters more than your family’s comfort. Each of our technicians has undergone extensive training and is backed by years of industry experience. No matter the service at hand, you can count on us to treat your home as if it were our own and always get the job done right the first time. To ensure you receive the service you deserve, we offer our Ultimate Guarantees, which include a lifetime equipment guarantee, an upfront pricing guarantee, a 100% satisfaction guarantee, a same-day service guarantee, an on time or it’s free guarantee, and a fixed right guarantee.

Make an appointment with our South Plainfield HVAC technicians, plumbers, and electricians today by calling (732) 412-1134.

Learn About Guaranteed Service

  • You’ll Become a Customer for Life
  • Welcome to Guaranteed Service!
  • See Why They Become Customers for Life!

Our Pledge:

As an Employee of Guaranteed Service
  • I will always ask the customer at the end of my visit if they are completely satisfied with my visit and the service provided. If they are not, I will do everything in my power to make sure that they are.

  • I promise not to mislead or offer any customer products or services that they do not need or want.

  • I promise to always be ethical and do the right thing, every time.

  • I promise to take personal responsibility for the satisfaction of every customer and will follow all company policies and procedures at all times.

  • I will provide every customer, regardless of size of project, with every available option, which will allow them to make the repair or replacement decision that best suits their needs.

  • I promise to always use my technical knowledge and skill to diagnose all of our customers issues as efficiently and quickly as possible, while providing constant updates to our customer every step of the way.


  • Best HVAC experience I’ve ever had. “The guys at Guaranteed are the best. Al Giordano was friendly, on time and knowledgeable. He helped us pick out the best system for our home. Brian and Nick installed the system in one day. They were efficient, respectful and clean. The job came out better than I could’ve imagined. Best HVAC experience I’ve ever had.”

    - Sebastian C.
  • I will definitely use them again! “Truly great service, Joe is an excellent technician. He took the time to explain everything he was doing and answered all of my questions. I’m so glad I took advantage of the tune-up offer that Guaranteed Service was offering. I will definitely use them again for my maintenance service in the future and would highly recommend this company.”

    - Susan C.
  • Courteous, Professional and Efficient! “One of the best companies that I have ever worked with! From my first phone call to the final walk through, everything was impeccable! Al Giordano
    was just amazing, explained everything upfront and took the time to answer all my questions and address my concerns. Jason, Brian and Nick were fantastic and I cannot stop raving about them to my friends and family! I would recommend them over and over again, courteous, professional and efficient! Call Guaranteed Service, you will not be disappointed!”

    - Lyndell P.

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