Trusted Experts in HVAC & Refrigeration

For over 23 years, Guaranteed Mechanical has proudly served restaurants and businesses across New Jersey. We provide 24/7 service, handling installation, maintenance, and repairs for walk-in refrigerators, freezers, rooftop HVAC units, and commercial kitchen appliances. When it comes to HVAC and refrigeration, we do it all!

Delivering Excellence Across Industries

Group with checkmark icon on green background.

Expanding Our Reach

In the last several years, we’ve worked hard to extend our services in New Jersey and New York—bringing our expertise to an even wider range of clients.

Document icon with security checkmark symbol.

Certified & Qualified

We are a fully licensed HVAC and Refrigeration (HVACR) contractor with the State of New Jersey, bringing expertise, compliance, and safety to every job. Our team is OSHA-certified for workplace safety and EPA-certified for environmental responsibility, ensuring that every installation, repair, and maintenance service we provide meets the highest industry standards.

Hand holding a checkmark badge icon.

Committed to Excellence

Our mission is to enhance the customer experience by offering convenience, cost-effective solutions, and top-quality service.

Meet Our Team

Man in Guaranteed Mechanical uniform sitting down.

Calixto Guerra Sr

President & Sr. Project Manager

Man standing outdoors on a sunny day.

Calixto Guerra Jr

Vice President, Field Project Manager

Thank You for Trusting Us

We appreciate the opportunity to serve your business and look forward to continuing to support your success. Let’s keep your operations running smoothly—together!