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Play Background Video: _users_57b52047-7607-44fb-8af1-3358233c55a9_generated_7329f903-00bb-40da-8e64-7a6cdd06db66 Commercial & Industrial Electrical Contractors Serving Chicagoland Since 1979 View Projects Contact Us Previous 01 Christofle Chicago Chicago, IL 02 Sky Zone Trampoline Park Algonquin, IL 03 Machine Shop Bloomingdale, IL 04 Andy's Frozen Custard Melrose Park, IL 05 St. Sophia Greek Orthodox Church Elgin, IL 06 2000 Amp Service Rockford, IL Next 01 / 06 Close Previous Next Christofle Chicago Chicago, IL Go to link 01 Christofle Chicago Chicago, IL 02 Sky Zone Trampoline Park Algonquin, IL 03 Machine Shop Bloomingdale, IL 04 Andy's Frozen Custard Melrose Park, IL 05 St. Sophia Greek Orthodox Church Elgin, IL 06 2000 Amp Service Rockford, IL Featured Projects Commercial LH Block Electric is able to manage all of your commercial building electrical requirements at every level from multi-million dollar new build projects to minor electrical installations and repairs. We offer comprehensive solutions for all your commercial needs because we understand that any delay or interruption in electrical service means a loss in productivity and revenue. Commercial Industrial Industrial We provide specialized industrial electrical services designed to streamline your operations and enhance safety. From heavy machinery power systems to facility-wide wiring, our expert team ensures your infrastructure is efficient and fully compliant with all codes. We handle large-scale installations and preventive maintenance with precision to minimize downtime. Lighting & Energy Savings Proper lighting is essential to a safe, productive, and professional business environment. From enhancing employee productivity and customer experience to improving parking lot safety, quality lighting makes a difference. Whether you need maintenance, an energy-efficient retrofit, or a complete lighting upgrade, LH Block Electric delivers reliable solutions that reduce energy costs and keep your facility performing at its best. Lighting & Energy Savings Electrical System Design & Installation Emergency & Standby Power Systems Power Distribution & Upgrades Commercial EV Charger Installation Lighting Installation & Retrofits EV Charging Station Site Assessment & Design Preventive Maintenance & Repairs Tenant Build-Outs & Renovations 47 Service Years of LH Block Electric Company has been a pillar of the electrical industry for almost five decades, delivering results with experience and accountability. Featured Projects Previous 01 Christofle Chicago Chicago, IL 02 Garrett Popcorn Shop Aurora, IL 03 EV Charging Station Naperville, IL 04 CNC Machine Shop Bloomingdale, IL 05 Luxury Watch Shop Chicago, IL 06 Andy's Frozen Custard Melrose Park, IL 07 Sky Zone Trampoline Park Algonquin, IL 08 2000 Amp Service Rockford, IL 09 2000 Amp Service Rockford, IL 10 St. Sophia Greek Orthodox Church Elgin, IL Next 01 / 10 Close Previous Next Christofle Chicago Chicago, IL Go to link 01 Christofle Chicago Chicago, IL 02 Garrett Popcorn Shop Aurora, IL 03 EV Charging Station Naperville, IL 04 CNC Machine Shop Bloomingdale, IL 05 Luxury Watch Shop Chicago, IL 06 Andy's Frozen Custard Melrose Park, IL 07 Sky Zone Trampoline Park Algonquin, IL 08 2000 Amp Service Rockford, IL 09 2000 Amp Service Rockford, IL 10 St. Sophia Greek Orthodox Church Elgin, IL

The Team Behind The Work Dedicated Professionals Powering Every Project About Us Read more about LH Block and our history About Us Why LH Block See why businesses trust LH Block Why Choose Us Safety & Training Keeping our people and projects safe every step of the way Read More Jonathan Block Estimating & Sales Project Manager Thomas Block Operations Manager Greg Block Service Manager Danny Block Marketing

Our Services Experienced solutions for projects of every size and complexity Our Services Experienced solutions for projects of every size and complexity What sets us apart is our unique ability to seamlessly combine traditional industrial electrical expertise with modern design, installation, and smart system integration- whether that's an EV Charger, a Machine Shop, or a Lighting LED retrofit- all delivered by one experienced, reliable team guided by our core values. Powering businesses throughout the Chicagoland area and Northern Illinois Service Area Read More Our Services Electrical System Design & Installation We provide complete electrical system design and installation tailored to the specific needs of each project. From early planning and load calculations to final installation, we ensure every system is built for safety, efficiency, and long-term reliability. Our team focuses on delivering code-compliant solutions that integrate seamlessly with the overall project design and performance requirements. Power Distribution & Upgrades We specialize in upgrading and expanding power distribution systems to support increased electrical demand and modern equipment requirements. Whether it’s a service upgrade, panel replacement, or system expansion, we ensure your electrical infrastructure is safe, efficient, and capable of handling future growth while minimizing disruption to operations. Lighting Installation & Retrofits We install and retrofit lighting systems for commercial and industrial spaces with a focus on performance, energy efficiency, and clean execution. From new construction installations to LED upgrades and retrofits, we deliver lighting solutions that improve visibility, reduce energy costs, and meet modern code and design standards. Preventive Maintenance & Repairs Our preventive maintenance and repair services are designed to keep electrical systems operating safely and efficiently while reducing the risk of unexpected downtime. We identify potential issues early, perform necessary repairs, and help extend the life of your electrical infrastructure through proactive service and reliable response. Emergency & Standby Power Systems We design, install, and maintain emergency and standby power systems, including generators and automatic transfer equipment, to ensure your facility remains operational during outages. Our solutions are built for reliability and fast response, providing peace of mind when continuous power is critical to your operations. Commercial EV Charger Installation We provide full installation services for commercial EV charging stations, supporting businesses, fleets, and property owners in meeting growing electric vehicle demand. Our installations are designed for safety, scalability, and compliance, ensuring reliable charging infrastructure that integrates smoothly with your existing electrical system. EV Charging Station Site Assessment & Design We conduct detailed site assessments to evaluate electrical capacity, infrastructure, and layout requirements for EV charging installations. Based on our findings, we design efficient and scalable charging solutions that ensure proper load management, optimal placement, and future expansion capability. Tenant Build-Outs & Renovations We offer complete electrical services for tenant build-outs and renovations, working closely with general contractors and project teams to meet schedules and specifications. Our focus is on delivering clean, efficient installations that integrate seamlessly with existing systems while supporting the unique needs of each tenant space.

Who We are LH Block Electric Company inc. For more than 47 years, LH Block Electric Co. Inc. has provided professional, high-quality electrical services at a fair and competitive price throughout Chicago and the surrounding suburbs. Our reputation is built on experienced, highly trained electricians, long-standing employees, and trusted client relationships that span generations. Why LH Block See why businesses trust LH Block Why Choose Us Our Team Meet the team behind our trusted electrical service Team Members Safety & Training Keeping our people and projects safe every step of the way Read More 1979 - Foundation The Block Era Starts Randy Block purchased LH Electric from founder Lukas Hunsinger in 1979. Cathy joined the business that same year, and together they began building the company around hard work, integrity, efficiency, and customer service. 1991 – INCORPORATION & GROWTH Building a Stronger Foundation In 1991, LH Electric was incorporated and officially became LH Block Electric Company, Inc. Under Randy and Cathy’s leadership, the company continued to grow, taking on larger commercial and industrial projects while building lasting customer relationships. Our History 2000s – NEXT GENERATION JOINS Next Generation Leadership The Block brothers (Jon, Tom, Danny, and Greg) gradually join the family business, bringing new energy and expertise. This era strengthens the company’s commitment to efficient, lean operations while maintaining the high standards set by previous generations. TODAY & BEYOND – CONTINUING THE LEGACY Future Focused Now led by the third generation, LH Block remains committed to innovation, sustainability, and exceptional service. We continue investing in our people, adopting new technologies, and helping clients with modern electrical solutions — all while staying true to the principles of integrity and value established decades ago. Growth and Reputation From its beginnings as a small local contractor, LH Block has grown into an established provider of commercial and industrial electrical services throughout the Chicagoland area. Our experience includes new construction, renovations, tenant improvements, machine-shop relocations, office build-outs, and large multiunit projects. Much of our success has been built through repeat business and long-standing customer relationships. Our clients include national brands such as Goldfish Swim School, Andy’s Frozen Custard, Trader Joe’s, and Network Global Logistics. Customers rely on LH Block for quality workmanship, dependable service, and our ability to take ownership of challenging projects. When unexpected issues arise, our experienced team develops practical solutions and keeps the work moving toward completion. Our Story From Apprentice to Legacy LH Block Electric Company, Inc. traces its roots to the 1950s, when European immigrant Lukas Hunsinger founded LH Electric, a small electrical contracting business serving the Chicagoland area. In 1972, Randy Block joined LH Electric as an apprentice with the promise that, through hard work and dedication, he could one day take over the business. Randy fulfilled that promise in 1979 when he purchased the company from Lukas. Cathy joined Randy in the business that same year, and together they built the foundation of what would become a multigenerational family company. The business continued operating as LH Electric until it was incorporated in 1991 under the name LH Block Electric Company, Inc. Randy and Cathy grew the company around the principles of hard work, efficiency, integrity, and customer-focused service. Randy passed away in 2024, but his vision and values remain at the heart of LH Block today. The Next Generation Randy and Cathy raised five sons, four of whom—Jon, Tom, Danny, and Greg—gradually took on leadership roles. Today, Cathy serves as a consultant while the four brothers manage the company’s day-to-day operations. As Jon likes to say, “Our grandfather and uncles were electricians as well, so I like to say we’re third-generation electricians.” Each brother brings different experience, knowledge, and strengths to the company while sharing the commitment to quality and service that has defined LH Block for generations. LH Block's Service Vans, Circa 1998 Our Principles Efficiency and lean operations have always been central to the way we conduct business. By controlling overhead, maintaining strong supplier relationships, and operating responsibly, we can provide high-quality electrical work at a fair and competitive price. We take pride in finishing what we start—on time and on budget. Our customers know they can expect professional service, clear communication, and lasting value from every project. Looking Forward Today, LH Block continues to honor the principles on which the company was built while investing in its future. We participate in local vocational programs, support apprenticeship training, and provide stable careers within a positive and supportive workplace. From humble beginnings in the 1950s to an established third-generation family business, LH Block Electric remains committed to serving the Chicagoland area with integrity, reliability, and skilled craftsmanship—carrying forward the legacy built by Randy and Cathy Block. Randy & Cathy Block, 2018 LH Block's Service Vans, Circa 1998

Contact Us LH Block Electric Company, Inc. 1281 Humbracht Cir. Suite K Bartlett, IL 60103 (630)830-9680 Contact@LHBlockElectric.com

Areas We Service Serving Chicago and the Surrounding Suburbs Chicago Downtown / Loop North Side South Side West Side Northern Suburbs Buffalo Grove Deerfield Evanston Glenview Highland Park Lake Forest Lincolnshire Morton Grove Niles Northbrook Northfield Park Ridge Skokie Vernon Hills Wilmette Winnetka Western Suburbs Addison Aurora Bloomingdale Carol Stream Downers Grove Elmhurst Glen Ellyn Glendale Heights Lombard Naperville Oak Brook Villa Park West Chicago Wheaton Winfield Woodridge southern Suburbs Alsip Bridgeview Burbank Chicago Heights Crestwood Evergreen Park Homewood Lemont Oak Forest Oak Lawn Orland Park Palos Heights Palos Hills South Holland Tinley Park Willow Springs Northern Illinois Belvidere Sycamore Dekalb Rochelle Rockford Discuss Your Project Don’t see your location listed? Contact our team to confirm service availability for your project. Experienced solutions for projects of every size and complexity Our Sevices Read More

Accessibility Statement LH Block Electric Company Inc. is committed to ensuring digital accessibility for people with disabilities. We strive to make our website LHBlockElectric.com accessible to all users, in accordance with applicable laws and best practices. Our Commitment We aim to provide an inclusive online experience for all visitors seeking information about our electrical contracting services, completed projects, and ways to contact us. This includes users with visual, auditory, motor, cognitive, or other disabilities. Accessibility Standards We are working toward conformance with the Web Content Accessibility Guidelines (WCAG) 2.1 or 2.2, Level AA, published by the World Wide Web Consortium (W3C). These guidelines provide widely accepted standards for making web content more accessible. Our website is built on the Wix platform, which includes tools and features designed to support accessibility. We also take additional steps such as using clear headings, descriptive text, appropriate image alternatives where possible, and good color contrast. Limitations and Ongoing Efforts While we make continuous improvements to enhance accessibility, some content (such as certain project images or third-party elements) may not yet be fully accessible. We are actively working to identify and address any barriers. If you experience any difficulty accessing any part of our website or need information provided in an alternative format (for example, large print, audio, or another accessible format), please contact us. We will work with you to provide the information you need in a suitable way. Feedback and Contact Your feedback is important to us and helps improve accessibility for everyone. Please let us know if you encounter any accessibility barriers on LHBlockElectric.com by contacting us at: • Email: Contact@lhblockelectric.com • Company: LH Block Electric Company Inc. • Website: LHBlockElectric.com We welcome your suggestions and will respond to accessibility-related requests promptly.

What We Do Featured Projects We deliver high-quality electrical construction services, specializing in reliable installations, efficient upgrades, and detail-driven execution across all projects. Previous 01 Luxury Watch Shop Chicago, IL 02 Garrett Popcorn Shop Aurora, IL 03 Christofle Chicago Chicago, IL 04 Machine Shop Bloomingdale, IL 05 Sky Zone Trampoline Park Algonquin, IL 06 Warehouse Lighting Upgrade Buffalo Grove, IL 07 Andy’s Frozen Custard Melrose Park, IL 08 EV Charging Station Naperville, IL 09 2000 amp Service Rockford, IL 10 St. Sophia Greek Orthodox Church Elgin, IL Next 01 / 10 Close Previous Next Luxury Watch Shop Chicago, IL 01 Luxury Watch Shop Chicago, IL 02 Garrett Popcorn Shop Aurora, IL 03 Christofle Chicago Chicago, IL 04 Machine Shop Bloomingdale, IL 05 Sky Zone Trampoline Park Algonquin, IL 06 Warehouse Lighting Upgrade Buffalo Grove, IL 07 Andy’s Frozen Custard Melrose Park, IL 08 EV Charging Station Naperville, IL 09 2000 amp Service Rockford, IL 10 St. Sophia Greek Orthodox Church Elgin, IL

Why Choose Us Experience you can count on. Quality that sets us apart. About Us Read more about LH Block and our history About Us Our Team Meet the team behind our trusted electrical service Team Members Safety & Training Keeping our people and projects safe every step of the way Read More Quality We take pride in completing electrical work correctly the first time. Our electricians pay close attention to installation details, code requirements, and overall workmanship. We use dependable materials and proven methods. Every project is completed with the goal of providing safe, lasting results. Training Our electricians receive thorough classroom and hands-on training. Many have completed the Associated Builders and Contractors four-year apprenticeship program. Several also hold Chicago Supervising Electrician Licenses. Ongoing education keeps our team current with codes, technology, and safety practices. Professionalism Our electricians represent L H Block Electric with respect and professionalism. We maintain clean work areas and remain mindful of customers, tenants, and other trades. Our team communicates clearly and conducts itself appropriately on every jobsite. Professional service is expected from the first conversation through project completion. Relationships We believe strong relationships are built through honesty and accountability. Our team takes the time to understand each customer’s needs and expectations. We communicate openly and stand behind our work. This approach has earned us repeat business from customers throughout the region. Reliabilty Our customers can count on us to arrive prepared and ready to work. We communicate clearly about schedules, progress, and project needs. When we make a commitment, we work hard to follow through. That consistency has helped us build lasting customer relationships. Experience With more than 47 years in business, L H Block Electric brings proven knowledge to every project. Our experience helps us recognize potential challenges before they become problems. We understand the demands of commercial and industrial electrical work. Customers benefit from practical solutions developed over decades in the field.

Safety & Training Trained for excellence. Committed to safety. About Us Read more about LH Block and our history About Us Our Team Meet the team behind our trusted electrical service Team Members Why LH Block See why businesses trust LH Block Why Choose Us Training Proud Members of ABC Safety & Skills Training includes jobsite safety, OSHA requirements, personal protective equipment, lockout/tagout procedures, proper tool use, and hazard recognition. Apprentices must develop the practical skills and competency required to progress through the program. On-The-Job Training Apprentices gain hands-on experience working alongside experienced electricians, allowing them to apply classroom knowledge on active construction projects. ABC Illinois combines employer-sponsored classroom instruction with on-the-job training Classroom Training Our apprentices complete a structured, four-level electrical curriculum covering electrical theory, blueprints, circuits, equipment, and the National Electrical Code. Our Safety Commitments 01 Injury Prevention Work toward zero work-related injuries by identifying hazards and preventing incidents before they occur. 02 Safe Work Environment Provide a healthy, well-managed workplace that protects employees, business partners, clients, and the public. 03 Safety Compliance Incorporate all applicable safety requirements, regulations, and client expectations into every level of the project. 04 Personal Accountability Encourage every employee to take ownership of their own safety and the safety of those around them. 05 Continuous Improvement Set clear safety goals, measure performance, strengthen procedures, and hold one another accountable for results. 06 Safety Leadership Recognize strong safety performance, support the community, and grow the business on a foundation of safety excellence.

Terms & Conditions Welcome to the website of LH Block Electric Co. Inc. By accessing or using this website, you agree to the following Terms & Conditions. If you do not agree with these terms, please do not use this website. Website Information The information provided on this website is for general informational purposes only. While we strive to keep all information accurate and up to date, LH Block Electric Co. Inc. makes no guarantees regarding the completeness, accuracy, reliability, or availability of any information contained on this website. Information on this website should not be considered professional engineering advice, electrical design, or a guarantee of services. Estimates and Proposals Any pricing, estimates, budgets, or project descriptions provided on this website are for informational purposes only. Actual pricing is provided only through a written proposal issued by LH Block Electric Co. Inc. All work is subject to a signed agreement, project specifications, applicable permits, local codes, and material availability. Commercial Services Only LH Block Electric Co. Inc. specializes in commercial and industrial electrical contracting. Unless otherwise stated, our services are not intended for residential electrical work. No Contractor-Client Relationship Viewing this website, submitting a contact form, sending an email, or requesting information does not create a contractor-client relationship. A business relationship is established only after both parties have executed a written agreement. Project Information Project descriptions and photographs displayed on this website are intended to showcase previous work and capabilities. Past project performance does not guarantee similar results on future projects. Intellectual Property All content on this website, including but not limited to: Text Logos Graphics Project descriptions Photographs Layout Design is the property of LH Block Electric Co. Inc. or is used with permission. No content may be copied, reproduced, distributed, modified, or used without prior written consent. Photographs Project photographs appearing on this website are either owned by LH Block Electric Co. Inc. or used with permission from the respective owner or photographer. Unauthorized copying, downloading, or commercial use of these images is prohibited. Third-Party Links This website may contain links to third-party websites for your convenience. LH Block Electric Co. Inc. does not control or endorse these websites and is not responsible for their content, policies, or practices. Limitation of Liability To the fullest extent permitted by law, LH Block Electric Co. Inc. shall not be liable for any direct, indirect, incidental, consequential, or special damages arising from the use of this website or reliance upon any information contained herein. Use of this website is at your own risk. Website Availability We reserve the right to modify, suspend, or discontinue any part of this website at any time without prior notice. We do not guarantee uninterrupted or error-free operation of the website. Privacy Any personal information submitted through our contact forms is handled in accordance with our Privacy Policy. Governing Law These Terms & Conditions shall be governed by and interpreted in accordance with the laws of the State of Illinois, without regard to its conflict of law provisions. Changes to These Terms LH Block Electric Co. Inc. reserves the right to update or modify these Terms & Conditions at any time. Changes become effective immediately upon posting to this website.

Privacy Policy A legal disclaimer LH Block Electric Company Inc. (“we,” “us,” or “our”) operates the website LHBlockElectric.com (the “Site”). We are committed to protecting your privacy. This Privacy Policy explains how we collect, use, disclose, and safeguard your information when you visit our Site, submit a contact form, or interact with our electrical contracting services. Please read this policy carefully. If you do not agree with its terms, please do not use the Site. 1. Information We Collect We may collect the following types of information: • Personal Information: When you fill out our contact form, request a quote, or otherwise communicate with us, we may collect your name, email address, phone number, mailing address, property details, and any other information you voluntarily provide about your electrical project needs. • Usage and Technical Data: We automatically collect certain information about your device and usage, including IP address, browser type, operating system, referring URLs, access times, and pages viewed. • Cookies and Tracking Technologies: We use cookies and similar technologies to enhance your experience, analyze Site usage, and for other purposes described below. We do not collect payment information on this Site, as we do not process transactions online. 2. How We Collect Your Information • Directly from you via contact forms, quote requests, or emails. • Automatically through cookies, server logs, and analytics tools. • From third-party services we use to operate and improve the Site. 3. How We Use Your Information We use the collected information for the following purposes: • To respond to your inquiries, provide project estimates, and deliver electrical contracting services. • To showcase our completed projects and inform you about our services (residential, commercial, and other electrical work). • To communicate with you regarding appointments, service updates, or follow-ups. • To analyze Site usage and improve our online presence. • To comply with legal obligations or protect our rights. 4. Sharing of Your Information We do not sell your personal information. We may share your information in limited circumstances: • With trusted service providers who assist us (e.g., website hosting like Wix, email communication tools, or analytics services). These providers are obligated to protect your data. • To comply with legal requirements, court orders, or government requests. • In connection with a business transfer (e.g., merger or acquisition). 5. Cookies and Tracking Technologies We use cookies to: • Remember your preferences and improve navigation. • Understand how visitors interact with our electrical services information. • Enhance overall Site functionality. You can manage or disable cookies through your browser settings. Note that disabling cookies may limit some features of the Site. 6. Data Security We implement reasonable administrative, technical, and physical safeguards to protect your personal information. However, no method of transmission over the internet or electronic storage is 100% secure. We cannot guarantee absolute security. 7. Your Rights and Choices Depending on your location, you may have rights regarding your personal data, such as accessing, correcting, or requesting deletion of your information. To exercise these rights, please contact us using the details below. We will respond within a reasonable timeframe. 8. Children’s Privacy Our Site is not intended for children under 13 (or the applicable age of consent in your jurisdiction). We do not knowingly collect data from children. If we become aware that we have collected personal information from a child without parental consent, we will take steps to delete it. 9. International Transfers If you are located outside the United States, please note that your information may be transferred to and processed in the United States. By using our Site, you consent to this transfer. 10. Changes to This Privacy Policy We may update this Privacy Policy from time to time. We will notify you of material changes by posting the new policy on this page and updating the effective date. We encourage you to review this policy periodically