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  • Home
    • Portfolio
    • Service Area
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    • Contact Us
    • FAQ
    • Cookie Policy
    • Blog
      • Is Aeroseal Right for Your Duct System in Chicago?
      • Now Is the Best Time to Buy a Kohler Generator (IL & WI)
      • Furnace Repair or Replace? A Clear Guide for Chicagoland
      • Gas Tank vs. Gas Tankless vs. Heat Pump Water Heaters: What’s Best for Your Home? (IL & WI)
      • Carrier vs Lennox Furnace (2025): Which Performs Better in Chicago’s Winters?
      • McHenry County Standby Generator Installation: Easy Guide to Buying, Installing, and Maintaining
      • Well Water Problems in Northwest Illinois: What to Test & How to Fix
      • Why Cheap Air Duct Cleaning Can Cost You More | Chicagoland & Southern Wisconsin
      • Tesla Charger Installation in McHenry County, IL
  • Heating & Cooling
    • CARRIER® Furnaces
    • LENNOX® Furnaces
    • CARRIER® Air Conditioners
    • Boiler Installation
      • Weil-McLain Prices
      • Peerless Prices
    • Heat Pump Installation
    • Packaged Units Installation
      • Magic‑Pak
      • National Comfort Products
    • CARRIER® Ductless Mini Split
    • Furnace Repair
      • Carrier Furnace Troubleshooting
      • Lennox Repair
      • Trane Repair
      • Goodman Repair
      • Amana Repair
    • Air Conditioning Repair
      • Carrier AC Repair
      • Lennox AC Repair
      • Trane AC Repair
      • Goodman AC Repair
    • Heating Maintenance
    • Deal of the Month
  • Electrical
    • Electrical Service Upgrades
    • Electric Vehicle (EV) Charging Stations Installation
      • Tesla (EV) Charging Stations Installation
      • ChargePoint Station Installation
  • Plumbing
    • Water Heater Installation
      • Bradford White Water Heaters
      • Rheem Water Heaters
      • Navien Water Heaters
      • Rinnai Water Heaters
  • Generators
    • Generator Installation
    • Generator Tune-Up
    • Generator Repair
    • Generac Generators
      • Generac National Promotion
      • Generac Referral Rebate Offer
    • KOHLER Generators
      • KOHLER Generators Installation
      • Kohler Generator Service, Repair & Maintenance
      • Kohler Generators: Free 10-Year Extended Warranty (10/15-11/30/25)
      • PROMOTION – Free 10-Year Warranty with Cellular Kit (10/01 – 12/31/25)
    • Cummins Generators
      • Cummins Generators Installation
    • Champion Generators
    • Briggs & Stratton Generators
    • Generator Tune-Up
  • Air Quality
    • Air Duct Cleaning Service
      • Air Duct Cleaning and Sanitizing – Rotobrush System
      • Complete Air Duct Cleaning and Sanitizing – Nikro System
    • Air Duct Cleaning | Cost, Process & Online Booking
    • Dryer Vent Cleaning
    • Aeroseal & Duct Sealing
    • Retrotec Blower Door & Duct Leakage Testing
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    • Penguin Water Systems
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    • Kohler Generators
    • Kohler 10RESVL 10 kW Generator – Single Phase, LPG|Natural Gas, with Automatic Transfer Switch and OnCue Plus

    • *Fully Installed from: $7,900.00
    • Emergency Generator Repair Your Kohler 10RESVL 10 kW standby generator is installed outside your home like an air conditioning unit. It’s wired into the electrical panel and fuel system, so it comes on automatically during a power outage whether you're home or away.
    • VIEW DETAILS
    • Kohler Generators
    • Kohler 12RES 12 kW Generator – Single Phase, LP|Natural Gas

    • *Fully Installed from: $7,600.00
    • Emergency Generator Repair Renowned for its reliability, Kohler’s 12RES generator is suitable for both standby and off-grid applications. The 12RES uses Kohler’s premier commercial grade CH-740 engine to produce 12kW of clean, stable power (10.4kW using natural gas) which homeowners should feel comfortable using with all appliances and other sophisticated electronics. Additional total surge capacity of 32kVa is available as…
    • VIEW DETAILS
    • Kohler Generators
    • Kohler 12RESVL 12 kW Generator – Single Phase, LPG|Natural Gas, with Automatic Transfer Switch and OnCue Plus

    • *Fully Installed from: $8,100.00
    • Emergency Generator Repair Kohler 12RESV 12kW Generator with 100 Amp 12 Space Load Center Automatic Transfer Switch, Nema 1 (Indoor Use Only) and OnCue Plus Generator Management System.
    • VIEW DETAILS
    • Kohler Generators
    • Kohler 14RESAL 14 kW Generator – Single Phase, Natural Gas|LPG, with Automatic Transfer Switch

    • Request a Price
    • Emergency Generator Repair High Quality Kohler 14RESAL 14 kW generator designed specifically for renewable energy applications and other remote applications. Provides consistent DC output to maintain battery banks directly without inefficient conversions from alternating current.
    • VIEW DETAILS
    • Kohler Generators
    • Kohler 20RESCL 20 kW Generator – Single Phase, LPG|Natural Gas, with Automatic Transfer Switch

    • Request a Price
    • Emergency Generator Repair If you need reliable back-up power for your whole home, the Kohler 20RESCL 20 kW Generator is an ideal choice that can provide you with 20,000 watts of electricity. This KOHLER generator is designed to switch on automatically in as little as 10 seconds when your power goes out, allowing you to enjoy real peace of mind…
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    • Kohler Generators
    • Kohler 20RESD 20 kW Generator – Single Phase, Natural Gas|LPG

    • Request a Price
    • Emergency Generator Repair Kohler 20RESD 20Kw 60-Hz home generator runs on a reliable Kohler type CH1000 4-Cycle V-2 engine with maximum 3600 RPM. It produces 2000 watts with LPG and 1800 watts with natural gas. The operational volume is as low as 60 dBA. The dual fuel generator offers advanced voltage and frequency regulation with ultra-low levels of harmonic distortion.…
    • VIEW DETAILS
    • Kohler Generators
    • Kohler 6VSG 6 kW Generator – Single Phase , Natural Gas|LPG, Variable Speed Home Backup Generator

    • *Fully Installed from: $9,300.00
    • Emergency Generator Repair High Quality Kohler 6VSG 6 kW Generator designed specifically for renewable energy applications and other remote applications. Provides consistent DC output to maintain battery banks directly without inefficient conversions from alternating current.
    • VIEW DETAILS
    • Kohler Generators
    • Kohler 8RESV 8 kW Generator – Single Phase, Natural Gas|LPG, with OnCue Plus

    • Request a Price
    • Emergency Generator Repair Your Kohler 8RESV 8 kW standby generator is installed outside your home like an air conditioning unit. It’s wired into the electrical panel and fuel system, so it comes on automatically during a power outage whether you're home or away.
    • VIEW DETAILS
    • Kohler Generators
    • Kohler 8RESVL 8 kW Generator – Single Phase, LPG|Natural Gas, with Automatic Transfer Switch and OnCue Plus

    • Request a Price
    • Emergency Generator Repair Your Kohler 8RESVL 8 kW standby generator is installed outside your home like an air conditioning unit. It’s wired into the electrical panel and fuel system, so it comes on automatically during a power outage whether you're home or away.
    • VIEW DETAILS
  • KOHLER® 10kW Home Generator – 10RESV
    • KOHLER® 10kW Home Generator – 10RESV
    • Kohler Generators
    • KOHLER® 10kW Home Generator – 10RESV

    • *Fully Installed from: $8,000.00
    • The Kohler 10RESV 10kW generator is a compact, automatic standby unit that provides dependable backup power to keep essential systems running during outages.
    • VIEW DETAILS
  • KOHLER® 12kW Home Generator – 12RESV
    • KOHLER® 12kW Home Generator – 12RESV
    • Kohler Generators
    • KOHLER® 12kW Home Generator – 12RESV

    • *Fully Installed from: $8,500.00
    • The Kohler 12RESV 12kW generator provides automatic, reliable backup power for your home’s essential systems. With quiet operation, dual-fuel flexibility, and fast response during outages, it’s the ideal solution for efficient and dependable standby power.
    • VIEW DETAILS
  • KOHLER® 14kW Home Generator – 14RCA
    • KOHLER® 14kW Home Generator – 14RCA
    • Kohler Generators
    • KOHLER® 14kW Home Generator – 14RCA

    • *Fully Installed from: $9,000.00
    • Kohler 14RCA 14kW Generator – Dependable Backup Power for Your HomeThe Kohler 14RCA 14kW Generator provides automatic, whole-home backup power during outages—restoring electricity within seconds. Ideal for homes up to 4,000 sq. ft., it powers essential systems like HVAC, lights, and appliances with quiet, reliable performance. Featuring a durable aluminum enclosure, dual-fuel capability, and remote monitoring via OnCue® Plus, the…
    • VIEW DETAILS
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By pressing the “Send Message” button, I consent to receive a phone call about products and services from a GSHA Services, LTD at the phone number(s) provided. My consent does not imply or require that a purchase be made.

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Free, No-Obligation In-Home Estimate

Our estimates for any project are provided without cost or obligation. If you’re considering GSHA Services, LTD for installation, you get a free estimate in your home. It’s that simple.

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