Build & renovate
Start with the right electrical foundation.
BUILT ON EXPERIENCE. POWERED BY TRUST.
Commercial & industrial electrical contractors.
From new buildings to the equipment inside them, we plan, install, and maintain the power your business depends on.
Based in Bartlett. Serving Chicagoland.
THE RIGHT PEOPLE. THE RIGHT POWER.
What’s next for your business?
From the first plans to the everyday repairs,
find the electrical support you need.
Equipment & power
Make room for your next machine or expansion.
Lighting & EV charging
Improve the spaces people use every day.
Service & backup power
Keep your business ready for the work ahead.
Not sure where to start? Tell us what you’re planning.
Explore all electrical servicesOUR WORK IN PRACTICE
Different projects.
The same commitment.
See how we turn electrical challenges into practical improvements for our customers.
View all projects
POWER DISTRIBUTION & SERVICE UPGRADES
Eco Plastics
An industrial facility needed new service and distribution. LH Block installed a 3,000-amp system with underground utility infrastructure.
Rockford, IllinoisView project
LIGHTING & NETWORKED CONTROLS
Village Square of Northbrook
To address aging, flickering fixtures, we modernized the parking-lot lighting and coordinated networked controls across all 81 lights.
Northbrook, IllinoisView project
COMMERCIAL EV CHARGING
Naperville EV Charging Station
Equipment lead times threatened a tight deadline. Coordinated sourcing and construction delivered an energized charging site within 60 days.
Naperville, IllinoisView project
FAMILY-OWNED. PERSONALLY INVOLVED.
Our name is on the work.
And we stand behind it.
Since 1979, LH Block has built relationships through practical electrical work and personal involvement. Our owners stay connected to the work, from planning and coordination to the needs of your facility.
Clear communicationPractical solutionsLong-term relationships
LOCAL ROOTS. REGIONAL REACH.
Based in Bartlett.
Working across Chicagoland.
Serving businesses throughout the western and northwest suburbs, Chicago, and Northern Illinois.
Bartlett · Elgin · Schaumburg · Bloomingdale · Naperville · Chicago
See our service areaLET’S GET TO WORK
What’s next for your business?
A new building, another machine, better lighting, or an electrical issue that needs attention—tell us what you have in mind.