Trusted by over 1,000 ★★★★★ customers Veteran Owned 🇺🇸
Licensed • Insured • Code Compliant

Generator Transfer Switch Installation Markham, IL

Load-calculated, code-compliant transfer switches and complete standby generator systems. Never be left in the dark again.

Click Here to Call (888) 355-9624
Permit Pulled
Load Calculated
Fully Insured
LICENSED
LOAD CALC
WHOLE HOUSE
MANUAL SWITCH
GENERAC • KOHLER
5-STAR SERVICE

Power loss is rarely the problem people prepare for. The freezer stops, the sump pump goes silent, the home office goes dark, and the generator sitting in the garage suddenly has to prove it was worth the money. The piece that decides whether it does — or doesn't — is the transfer switch.

At Midland's Electrical Services, we install transfer switches and complete standby systems across Midland the way the National Electrical Code intends them to be installed: load-calculated, properly bonded, sized to the actual circuits you depend on, and inspected against the real demand of your house — not a guess.

What We Install in Midland

Every generator installation we complete in Midland starts with the same question: what circuits must keep running, and what's the cleanest electrical path to keep them running?

Whole House Generator Installation with Automatic Transfer Switch

Our most requested install. A standby generator (typically Generac, Kohler, Cummins, or Briggs & Stratton) wired to an automatic transfer switch that detects an outage and starts the generator within seconds — no one has to flip anything. We handle the gas line coordination, the concrete pad, the load calculation, the panel interlock or sub-panel routing, and the local permit and inspection in Midland.

Manual Transfer Switch Installation for Portable Generators

A licensed install for homeowners who already own a portable generator and want a safe, code-compliant way to use it. We install a 6-circuit, 10-circuit, or 12-circuit manual transfer switch wired directly into your main panel, with a properly rated inlet box on the exterior wall. No more extension cords running under doors. No more backfeeding. No more risk to utility linemen.

Standby Generator Sizing & Load Calculation Service

Most undersized generators in Midland aren't undersized because the homeowner picked wrong — they're undersized because no one ran the actual numbers. We perform full load calculations against your panel, identify hard-starting loads (well pumps, AC compressors, sump systems), and size the generator for the startup draw, not just the running watts.

200-Amp Service & Sub-Panel Coordination for Backup Power

When the main service can't handle the new load — or when you only want certain circuits backed up — we install a dedicated backup-fed sub-panel and migrate the critical loads to it. This keeps the generator from trying to power the entire house when only essential circuits are needed.

Generator Transfer Switch Replacement & Repair

Older switches fail. Contacts pit. Relays stick. Boards go. If your existing transfer switch isn't switching, won't transfer back, or is throwing fault codes, we diagnose first, replace only what needs replacing, and document everything on the invoice.

How We Approach a Generator Install

1

On-site assessment

A licensed electrician visits the property in Midland, walks the panel, identifies the gas/propane source, looks at the proposed generator location, and measures the conductor distances.

2

Load calculation

We run the math on paper before we recommend equipment. The result is a sized generator and a defensible scope.

3

Written, itemized estimate

Generator. Transfer switch. Pad. Conduit run. Permit. Inspection. Labor. Each line is its own number. No "miscellaneous."

4

Permit, install, inspect

We pull the permit through the Midland authority having jurisdiction, install on the scheduled date, and coordinate the inspection. You don't chase the inspector — we do.

5

Commissioning and homeowner walkthrough

We test the transfer under simulated outage conditions, document the test, and walk you through the maintenance schedule before we leave.

Generator Transfer Switch Installation in Midland: What This Costs

Transfer switch installation pricing in Midland is driven by three variables: the switch type, the conductor run distance, and whether a sub-panel is involved.

Manual Transfer Switch
$1,400–$2,800
depending on circuit count and inlet placement

For portable generators. Safe, code-compliant installation.

Automatic Transfer Switch + Whole House
$4,500–$13,000+
electrical work only (generator separate)

Generator itself ranges from $4,000 (10kW) to $18,000+ (24kW+).

Sub-panel coordination, longer conduit runs, and concrete pad installation are quoted as separate line items. We will not quote you a single round number that hides the components.

What Goes Wrong When This Is Installed Cheaply

01

Backfeed risk

A "generator hookup" that uses a double-male cord or an improperly interlocked breaker can energize the utility line during an outage.

02

Undersizing

A 7kW generator wired to a panel with a 5-ton AC and a well pump will stall the moment the compressor starts.

03

Improper neutral bonding

Done wrong, GFCI breakers nuisance-trip on generator power, and surge protection becomes ineffective.

How We Compare to a General Handyman or Generator Salesperson

MIDLAND'S ELECTRICAL
  • Licensed electrical contractor
  • We pull the permit in our name
  • Full load calculations
  • 2-year workmanship warranty
HANDYMAN / DEALER
  • Often unlicensed for electrical
  • No permit or improper permit
  • Guesswork sizing
  • Limited or no warranty

Our Standards

Every generator install in Midland leaves with:

Permit closed by AHJ
Labeled transfer switch
Manufacturer warranty registered
Documented load calculation
Tested transfer cycle
2-year workmanship warranty

What Our Customers Are Saying

★★★★★

"Brian Calloway, Homeowner
Lost power three times last winter... He recommended a 22kW. Two weeks later it was installed, permitted, and tested. The next storm, I didn't even know we'd lost utility power..."

— Brian Calloway
★★★★★

"Janet Ruiz, Midland
Honest review — the first quote we got... was $3,000 cheaper. I went with Midland's anyway because they were the only company that ran an actual load calculation... Worth the difference."

— Janet Ruiz
★★★★★

"Carl Whittaker, Property Owner
Had a manual transfer switch put in... They still pulled a permit, still labeled every circuit... I appreciated being treated like the work mattered."

— Carl Whittaker

How to Tell If Your Generator Is Actually Sized for Your House

Most generator complaints we hear in Midland aren't about the generator. They're about expectations...

The math is straightforward... The biggest mistake we see in Midland installs is sizing for running watts only.

If you want the math done for you, we'll do it on the assessment visit and put it in writing.

Ready for Reliable Power?

Schedule your on-site generator assessment in Midland today.

Click Here to Call (888) 355-9624

Licensed • Insured • Veteran Owned • Serving Midland and surrounding areas

Call (888) 355-9624 Now

Our Other Electrical Services in Markham, IL

EV Charger InstallationSmart Home Electrical InstallationElectrical Panel Upgrade for Insurance ComplianceCommercial Emergency Lighting & Exit Sign Service

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