August 12, 2025

What to Expect with Generac: Typical Installation Price, Qualified Installers, and Included Services

A whole-home generator is a practical upgrade for Charlotte homeowners who want steady power during storms, grid hiccups, and summer peaks. If you are comparing options, Generac stands out for dependable performance and parts availability. The next question is cost, who should install it, and what services are included. This guide breaks it down in clear terms, using local context from work we do across Charlotte, Matthews, Ballantyne, SouthPark, Steele Creek, Huntersville, and the Lake Norman area. You will see typical price ranges, what drives the numbers up or down, how to spot qualified Generac generator installers, and exactly what’s included in a proper installation.

What a Typical Generac Installation Costs in Charlotte

For most single-family homes around Charlotte, the installed price for a Generac home standby system usually falls between $8,500 and $16,000. That range covers a common 10 to 22 kW air‑cooled Generac generator with an automatic transfer switch, pad, wiring, and gas connection. We also see projects outside this range. Larger homes with dual HVAC systems or extensive electric heat can require 24 to 26 kW units or a liquid‑cooled model, which can lift the total into the $18,000 to $32,000 bracket.

Here’s how the major pieces stack up:

  • Generator and automatic transfer switch: For a 14 to 22 kW unit, equipment often runs $3,900 to $6,800, depending on size, series, and whether load‑shedding modules are included.
  • Electrical scope: Most homes need a new service disconnect, a transfer switch tie‑in, and a feeder to the generator location. Expect $1,600 to $4,200 for materials and labor, more if the main panel needs replacement or relocation.
  • Gas line work: Natural gas runs in Charlotte usually land between $900 and $2,500, depending on distance to meter, meter upsizing, trenching or coring, and regulator upgrades. Propane systems vary based on tank size, set location, and line length.
  • Site work and concrete pad: A pre‑cast composite pad is common, but some sites call for a poured concrete slab. Budget $250 to $900.
  • Permits and inspections: City of Charlotte or Mecklenburg County permits and utility coordination generally add $200 to $650. Some neighborhoods with HOAs require an architectural review fee.
  • Optional extras: Sound fencing, whole‑home surge protection, load management modules, or Wi‑Fi monitoring can add $250 to $1,800.

These numbers are typical, but the right way to price your project is through a site visit. A walk‑through shows us panel capacity, gas service size, wire routes, setbacks from windows, flood risks, and how your HVAC and well or sump pumps behave under load. The clearer the picture, the more accurate the quote.

How to Size a Generac for Your Home Without Guesswork

The common trap is to size a generator by square footage. That can mislead you. In Charlotte, two 2,000‑square‑foot homes can have very different load profiles. One may have a gas furnace, gas water heater, and a single AC. The other may have dual heat pumps, electric range, electric water heater, and a pool pump.

We size by actual load and priorities. First, list the must‑run circuits: HVAC, fridge, well or sump pump, medical equipment, critical lighting, Wi‑Fi, and outlets. Second, measure or estimate starting currents for compressors and pumps. Third, decide whether you want whole‑home coverage or a managed approach with load‑shedding. Many of our Charlotte clients land on a 18 to 22 kW air‑cooled unit because it handles one or two HVAC systems, kitchen circuits, and general lighting with load management. Larger estates in SouthPark or along Lake Norman, especially with electric cooking and multiple condensers, sometimes need a 24 to 26 kW or a liquid‑cooled unit to avoid nuisance shedding.

A practical example: a 2,600‑square‑foot home in Ballantyne with a dual‑zone heat pump, gas water heat, gas dryer, and standard kitchen often runs fine on a 20 kW unit with a 200‑amp automatic transfer switch and two load‑shedding modules. Add an EV charger and an electric range, and we may step to 22 to 24 kW or keep 20 kW and shed the range and EV charger during generator power.

What Qualified Generac Generator Installers Actually Do

Licensed electricians with specific generator experience handle the electrical side, and licensed gas fitters handle the fuel. For Generac systems, familiarity with the company’s controllers, Evolution monitoring, and load‑shedding modules matters. A qualified installer will ask about your HVAC type, breaker panel brand, gas meter size, and local setbacks before quoting. They will coordinate with Duke Energy, Piedmont Natural Gas, or your propane provider. They will pull permits with Charlotte’s permitting system and schedule inspections.

Experience counts when details get tight. We often sort out tricky panel locations in older Charlotte houses or overcome tight lot lines in Dilworth and Plaza Midwood by shifting pad placement, using rigid gas piping with clean routing, or choosing a quieter model to satisfy HOA concerns. You should expect the installer to provide model‑specific documentation, startup procedures, and owner orientation. If they cannot explain the https://ewingelectricco.com/generac-generator-services/ transfer switch operation in plain words, keep looking.

What’s Included in a Proper Generac Installation

A complete, professional Generac installation includes site preparation, concrete or composite pad, generator assembly and anchoring, electrical interconnection, fuel piping, startup, and documentation. It also includes permitting, inspections, and post‑install testing under load. The crew should label the transfer equipment, provide a simple user guide, and register your warranty.

Ewing Electric Co includes the following on a standard Charlotte install for air‑cooled Generac units:

  • On‑site assessment with a written scope, including load analysis and gas service review.
  • Permit applications, inspections, and coordination with Duke Energy and Piedmont Natural Gas or your propane supplier.
  • Pad installation, generator placement, and vibration isolation as required.
  • Electrical work: transfer switch, conduit, conductors, grounding, bonding, surge protection if selected, and a clean tie‑in to your existing panel or a new service panel if needed.
  • Gas work: new regulator if needed, meter upsizing request if on natural gas, piping from meter or tank to the unit, and pressure testing.
  • Startup, firmware checks, weekly exercise setup, and homeowner walkthrough.
  • Warranty registration and first‑year service schedule.

If your home needs panel upgrades, long trenching runs, or HOA screening, we itemize those so you can see the costs clearly before we start.

The Role of Permits, Codes, and Utility Coordination in Charlotte

Mecklenburg County and the City of Charlotte require electrical and mechanical (fuel) permits for standby generators. Setbacks matter. Generators must sit a safe distance from windows, doors, crawlspace vents, and combustibles. Most 9 to 12 kW air‑cooled units need 18 inches to 5 feet of clearance per manufacturer instructions, and code can require more. We verify with local inspectors and site constraints. For flood‑prone lots near creeks, we elevate the pad or shift location.

Duke Energy wants a straightforward transfer method to prevent backfeeding the grid. That is why automatic transfer switches are standard. For natural gas, Piedmont reviews meter size and capacity. A common residential meter supports 250 to 325 cubic feet per hour. A 22 kW Generac at full load can draw roughly 300 to 350 cubic feet per hour on natural gas. If your home already has a gas range, furnace, and tankless water heater, we often request a meter upgrade. Approval typically takes a few business days. Propane systems need the right tank size and regulator staging to deliver steady pressure during long runs.

Proper paperwork and coordination prevent delays and callbacks. We line up inspectors early, protect landscaping during trenching, and leave the site clean so your HOA stays happy and your curb appeal remains intact.

Fuel Choice: Natural Gas vs. Propane in Our Area

Most Charlotte neighborhoods have natural gas service. It is convenient and supports long run times, since fuel comes from the utility. Propane fits homes without gas service, larger rural lots around Mint Hill or Lake Wylie, and clients who want a dedicated tank on site.

Natural gas pros: no refueling, stable price, and clean operation. Cons: subject to utility outages during rare major events or planned maintenance, and the upfront meter upgrade process. Propane pros: independence from utility, high energy density, and predictable supply with a properly sized tank. Cons: deliveries during regional storms can lag, and up‑front tank placement rules can limit location options.

We recommend a 250 to 500 gallon propane tank for a 14 to 22 kW unit, depending on expected runtime. For natural gas, we verify available pressure at the meter under load and size the pipe to keep the generator happy during compressor starts.

Timeline: From First Call to Commissioned System

A standard project flows through consultation, design, permitting, installation, and startup. Many Charlotte installs finish within two to four weeks after permit approval, depending on utility schedules and weather. Special conditions like HOA reviews, long gas runs, or panel upgrades can add time.

Day one is the on‑site assessment. We map routes, size the generator, and explain options. Within two business days, we provide a detailed proposal. Permits usually file within a day of acceptance. Material lead times are stable right now for common Generac models. We schedule installation across one to two days for air‑cooled units, with gas connection sometimes following within 24 to 72 hours if a separate licensed gas contractor is required. After inspections, we perform a full startup, transfer test, and homeowner training. We leave you with written instructions and our service contact.

Noise, Placement, and HOA Rules

Noise is a frequent question in Myers Park, SouthPark, and neighborhoods with close lot lines. Modern Generac air‑cooled units run around the mid‑60s dB at 23 feet during exercise. Full load is louder, but acceptable for daylight operation. Placement on the side yard behind landscaping, with the generator facing away from bedrooms and neighbors, softens perceived sound. We sometimes add privacy fencing or a sound‑rated screen, which also helps HOA aesthetics.

Setbacks are clear: keep units away from openings and comply with property line distances. We photograph the proposed location and submit a simple diagram to the HOA if needed. A neat installation with clean conduit runs and a level pad wins approvals faster.

Maintenance and Operating Cost After Installation

A Generac needs oil changes, filters, and inspection every year, or every 200 hours of run time. The first service within the first 12 months is important because it catches early issues and resets intervals with clean oil. We offer maintenance plans for Charlotte clients that include annual service, battery checks, firmware updates, and a load test. Most homeowners spend $200 to $450 per year on maintenance for air‑cooled units.

Fuel cost depends on run time and load. A 20 kW air‑cooled Generac on natural gas uses about 200 to 300 cubic feet per hour at partial load and up to roughly 350 cubic feet per hour near full load. On propane, expect about 2 to 3.5 gallons per hour depending on load. During typical storm outages in our area, run times are often a few hours to a day. For longer rural outages, propane planning matters. We help set exercise periods to low‑impact times and keep the weekly exercise to a short window to reduce noise and fuel use.

Warranty and What It Actually Covers

Generac offers base warranties that commonly run five years on many home standby models, with options to extend. The warranty covers defects in materials and workmanship. It does not cover damage from improper installation, flood, or neglect. That is why choosing experienced Generac generator installers matters. A proper startup with documented service records protects your coverage. We register your serial number, keep service logs, and help you handle warranty claims if a part fails.

What Can Push Costs Higher, and How We Control It

Underground obstacles, panel complications, long wire runs, or gas line limits can stretch budgets. For example, a panel buried in a tight interior closet can turn a simple transfer switch tie‑in into a rework that calls for a new exterior service panel. Older homes in Dilworth sometimes have layered electrical work that needs cleanup to pass inspection. Long drives and mature trees in Weddington can complicate trenching. The best way to control cost is early detection. We scan, probe, or mark routes before digging, and we propose alternative placements when a shorter run saves hundreds without hurting performance.

Load management is another lever. If a whole‑home generator feels oversized for the budget, we can keep the lights, fridge, and one HVAC running with a slightly smaller unit and smart load shedding. It is a balanced approach that keeps comfort and safety high while shaving a few thousand off the total.

Real‑World Charlotte Examples

A family in Steele Creek with a 2,200‑square‑foot home and a single heat pump wanted to keep HVAC, kitchen, and home office running. We installed a 18 kW Generac with a 200‑amp transfer switch, added two load‑shedding modules, and ran a short natural gas line from a meter with a regulator upgrade. Total came in around $10,900, including permits and first‑year service.

In SouthPark, a 4,000‑square‑foot home with dual condensers, an electric range, and a wine cooler needed whole‑home coverage. The project called for a 24 kW unit, new service equipment, and a longer gas run with meter upsizing. We also added a decorative screen for HOA compliance. The final price was near $22,500. The homeowners pointed out that one avoided hotel stay during a summer outage and not losing thousands in groceries and wine made the decision feel right.

On the Lake Norman side, a waterfront property with no natural gas opted for propane. We set a 500‑gallon underground tank to keep the yard open, tied in a 22 kW Generac, and programmed the generator to exercise at midday. They liked the clean look and the long runtime buffer. The all‑in price was about $18,800, including the tank and excavation.

Why Homeowners Choose Ewing Electric Co for Generac in Charlotte

Local experience with Charlotte’s code, utilities, and HOAs saves time and headaches. Our licensed team has installed and serviced many Generac systems across neighborhoods with different needs, from tight urban lots to larger suburban properties. We handle the process end to end, so you do not juggle multiple contractors or guess about timelines. We aim for clean conduit runs, labeled equipment, and a final setup that looks like it belongs on your home.

You also get clear communication. We show you what we plan to do and why. We give you options by cost and performance, and we do not upsell a larger generator unless your loads require it. If the right answer is smaller with smart load management, we will say so. If your gas meter will not support a 22 kW unit during a cold snap while the furnace runs, we prove it on paper and request the correct utility upgrade before installation day.

A Simple Pre‑Install Checklist for Homeowners

  • Walk your property and pick a preferred generator spot that is level, close to the panel and gas meter, and away from bedrooms.
  • Gather photos of your main panel, subpanels, gas meter, and HVAC nameplates.
  • Decide on must‑run circuits during an outage and nice‑to‑have circuits if capacity allows.
  • Ask your HOA about generator screening or placement rules if applicable.
  • Confirm where you want the weekly exercise time set so it does not interrupt sleep or meetings.

How to Get a Precise Quote Without Surprises

A good quote starts with a site visit. During our visit, we map the wire route, check panel capacity, and check gas line sizing. We show you a few placement options and explain trade‑offs for noise and future service access. Then we send a line‑item proposal with equipment model numbers, scope, permits, and any allowances for unknowns like rock in trenching. If you want to compare a 18 kW to a 22 kW option or natural gas to propane, we present side‑by‑side pricing and explain the runtime and load differences in plain terms.

If you received other quotes that feel far apart, ask each installer to show their fuel run length, wire size, and transfer switch type. Small differences can explain big price gaps. The right installer will answer directly and welcome that level of detail.

Common Questions We Hear in Charlotte

Will a 20 kW run my whole home? It depends on loads. In many gas‑appliance homes with one or two HVAC systems, yes with load management. In homes heavy on electric appliances, you may need 22 to 26 kW or accept shedding a few loads.

How loud is it? During the weekly exercise, expect a steady hum similar to a central AC unit. Full‑load noise is higher but temporary during outages. Placement and landscaping matter more than the spec sheet for perceived sound.

What about insurance? Some policies give small premium credits for standby generators because they reduce frozen pipe and sump overflow risk. Ask your carrier.

Do I need a surge protector? We recommend whole‑home surge protection with any generator project. Outages and switching events create voltage transients. A quality surge device is a small investment compared to electronics and HVAC boards.

Can I add an EV charger later? Yes. We plan for future loads by leaving space in the panel and programming load management so the charger pauses during generator operation.

Working With Generac Generator Installers Who Stand Behind the Work

The installation is half the story. Support and service matter when the first storm rolls through at 2 a.m. We offer annual service plans and priority response for our generator clients. We keep common parts in stock and maintain training on current Generac controllers. If you hear a new sound, see a fault code, or want to change the exercise time, you call and talk to a human who knows your setup.

That level of service starts with a clean, code‑compliant installation and continues with smart maintenance. It is why many Charlotte homeowners refer neighbors after the first outage proves the value.

Ready for a Quote in Charlotte, NC?

If you are searching for Generac generator installers near you and want a clear, local answer on price and scope, Ewing Electric Co is ready to help. We serve Charlotte, Matthews, Mint Hill, Ballantyne, SouthPark, Steele Creek, Huntersville, Cornelius, Davidson, and nearby communities. Schedule a site visit, and we will size your system, show you placement options, and give you a firm number with no surprises.

Call Ewing Electric Co or request your in‑home assessment online. We will handle permits, coordinate with utilities, and install a Generac system that fits your home, your budget, and the way your family lives.

Ewing Electric Co provides residential and commercial electrical services in Charlotte, NC. Our team handles electrical panel upgrades, EV charger installations, generator setups, whole-home rewiring, and emergency electrical repairs. We work to deliver safe, code-compliant results with clear communication and fair pricing. From small home repairs to large-scale commercial projects, we focus on reliable work completed correctly the first time. Serving Charlotte, Matthews, Mint Hill, and nearby areas, Ewing Electric Co is a trusted choice for professional electrical service.

Ewing Electric Co

7316 Wallace Rd STE D
Charlotte, NC 28212, USA

Phone: (704) 804-3320


I am a inspired strategist with a broad education in project management. My focus on technology inspires my desire to launch successful projects. In my professional career, I have cultivated a profile as being a innovative leader. Aside from building my own businesses, I also enjoy nurturing young problem-solvers. I believe in motivating the next generation of creators to fulfill their own ideals. I am readily pursuing cutting-edge ventures and working together with similarly-driven creators. Questioning assumptions is my mission. Outside of engaged in my business, I enjoy adventuring in exciting destinations. I am also focused on personal growth.