Watchdog Monitoring

The Good Natured Guys are here to protect your home. Learn more about the Sensi Predict™ smart HVAC maintenance system that comes with your Watchdog membership.

Watchdog Powered by Sensi

Would You Like To:


  • Know that your system is going to fail before it does?

  • Reduce future repairs?

  • Prolong the life of your furnace or air conditioner?

  • Reduce your energy bill by as much as $239 per year?

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Not having an annual maintenance checkup will reduce system efficiency by 5% every year.

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A build up of .042 (1/20) inches of dirt on the heating or cooling coil can result in a decrease in efficiency of 21% increasing your monthly utility and fuel bills.

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The number one cause of HVAC repairs is dirt on the filter, the blower, and on the cooling coils.

  • 24/7/365 Precision Monitoring

    • Every time your system runs, a 32-point analysis is performed.
    • Monitored wirelessly by a team of certified technicians in Sydney, Ohio for the performance and efficiency of your system, and watching for any symptoms that may indicate future problems.
  • Drastically Reduce Unexpected Breakdowns!

    • Equipment Problem alerts inform both you and us of any problems before they cause a breakdown and costly repairs.
    • 81% of Alerts are for preventative issues that can be addressed before system failure.
  • Reduce Your Utility Bills

    • Efficiency Loss Notifications notify us the minute your system shows a significant loss.
  • Front-Of-The-Line Priority Service

    • Our members’ needs are addressed within 24 hours.
  • Exclusive Discounts!

    • Applicable service membership discounts. Must join Watchdog membership plan.
    • NO OVERTIME rates for nights or weekends.
  • Complete System Rejuvenation

    • An expert technician will inspect, clean, adjust, and lubricate your system to help ensure it operates at peak condition.
    • Unlimited Tune-Ups. Your system will be tuned up as frequently as it needs to keep it running at its best.
  • Monthly Insight Reports

    • Contain your system’s efficiency scores and allow us to track your system’s performance every time it runs.
  • Independent Repair Verification

    • Independent party verification that the correct repairs were made and that your system is back to operating at peak performance.
    • Sensi Predict verification that parts were installed correctly.
  • Maximize The Life Of Your System

    • Proper operation allows the system to function as intended, avoiding premature aging and replacement.
  • Keeps Your Equipment Warranty Valid

    • Your system’s warranty becomes voided without proper maintenance as stated in your manufacturer’s installation manual.

Still have membership questions? One of our Good Natured Guys will be happy to provide you with detailed information so you can choose the best plan for you.

Request more information by calling (610) 593-5129 or by filling out our contact form.

Protect Your Investment with SZ Maintenance Plans

Membership Benefits

1. Maintenance Visits

A Good Natured technician visits once per year to thoroughly clean and performance test your system. They will make fine tuning adjustments and inform you if components are not performing as they should.

2. 25% Discount on Repairs

Repairs can be costly and unexpected! For members, any materials used and technician labor needed to solve the problem will be discounted at 25%.

3. Access to On-Call Staff

Emergencies never happen at convenient times. For this reason, our technical support staff is available 24/7, at no extra cost, to help solve the issue.

Dick Barrett, Apr 11, 2023

Always a good experience with S&Z. Great communications, service, and results. For over 25 years we have had installs (heat and ac); maintenance (scheduled and unscheduled); and, work done that our aging home required in order to ensure a quality outcome. Never once have we been uncomfortable or dissatisfied with this firm’s team of skilled people who go out of their way to satisfy the customer. It sounds corny but they do make us feel like family. I say that knowing there’s nothing special about us!

See More Reviews

Why Choose Summers & Zim’s for Your Home Services

When it comes to safeguarding your home’s comfort, Summers & Zim’s stands as your trusted partner in Chester County and beyond. Why entrust us with your residential plumbing, heating, and air conditioning needs? With a legacy spanning over 80 years, we’re not just experts; we’re your neighbors, deeply invested in our community’s wellbeing. Our team embodies a friendly and professional spirit, backed by a wealth of experience that’s recognized through prestigious certifications, including the Master Plumbing License, North American Technician Excellence, Inc., and the Environmental Protection Agency.

Our holistic approach to home services extends beyond mere repairs and installations. We believe in creating lasting relationships with our customers, delivering not only exceptional service but also tailored solutions that fit your unique home environment. It’s this dedication that has earned us the trust of families across Lancaster, Delaware, and Chester Counties.

We take pride in our work, and it shows in our commitment to excellence, reflected in our exclusive 5 Point Guarantee. This is our promise to you – consistent quality and satisfaction in every job we undertake, whether it’s ensuring your faucets don’t drip, your heating system keeps you cozy through winter, or your air conditioning offers respite from the summer heat. Choose Summers & Zim’s, where your home’s functionality and comfort are in capable hands.

5-Point Guarantee

  • Design Guarantee

    At Summers & Zim’s, we’re committed to excellence in every repair and installation we undertake. Our Design Guarantee ensures that the work we do not only meets but exceeds your expectations. Whether it’s a complex HVAC installation or a routine plumbing fix, we promise that it will function exactly as intended. If, for any reason, you feel that the results aren’t what you were expecting, our team is prepared to make necessary adjustments or replacements, completely free of charge. We’re not satisfied until you are, ensuring your home’s systems are both efficient and reliable.

  • No Lemons Guarantee

    We understand the frustration of a new plumbing fixture failing to perform as expected. With our No Lemons Guarantee, you have our assurance of quality and reliability. If any plumbing fixture we’ve installed in your home shows signs of malfunction or unreliability, rest assured, we will replace it with a new one at no additional cost. This guarantee is our promise of quality and your peace of mind, ensuring that your plumbing investments are secure and reliable.

  • $500 No Frustration Guarantee

    Your satisfaction is our top priority, and we stand firmly behind the quality of our plumbing installations. With our $500 No Frustration Guarantee, we take our commitment to a higher level. If any new plumbing installation we provide doesn’t perform as promised or expected within the first two years, we acknowledge the inconvenience it causes. To make it right, we will compensate you with $500. This guarantee underscores our dedication to providing services that not only meet but exceed your expectations.

  • Home Protection Guarantee

    At Summers & Zim’s, we treat your home with the utmost care and respect. Our Home Protection Guarantee ensures that in the unlikely event our team accidentally causes any damage to your home during our service, we will bear the cost of all necessary repairs or replacements. We strive to work meticulously, but should any mishaps occur, you can have peace of mind knowing that we will take full responsibility to restore your home to its original condition, or better.

  • 100% Money Back Guarantee

    Your trust in our system installations is valued, and we aim to deliver solutions that perfectly match your needs and expectations. Our 100% Money Back Guarantee is a testament to this commitment. If you find that a new system installation by Summers & Zim’s does not fulfill your requirements or live up to your expectations, we will not only remove the installation but also return every penny of your investment. This guarantee is our way of ensuring that your investment in your home’s systems is completely risk-free.

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