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SEMINOLE COUNTY · DUKE ENERGY ACROSS LAKE MARY · PERMITTED

Generator installation in Lake Mary, FL

Most Lake Mary homes went up in the 1990s and 2000s with sound wiring and panels sized to the minimum. A generator plan here starts with what that panel is already carrying.

LAKE MARY · TYPICAL INVESTMENT
$1,200 – $18,000

A portable hookup — inlet box, interlock kit, permit — is the low end and covers a lot of families well. Fixed standby with automatic transfer is the top of the range and depends on size, fuel and distance to the panel.

REVIEWS FROM LAKE MARY81
PERMIT OFFICECity of Lake Mary Building Department
WHO COVERS ITJason handles most Lake Mary EV work.
WHY THIS PAGE EXISTS

Four things that are only true in Lake Mary.

If you could swap the city name out of this page and it would still be accurate, it should not exist. Here is what actually changes here.

01

Chargers count in the load

Lake Mary has more EV chargers than anywhere else we work. If one is on your panel, it belongs in the load calculation, and it is often the circuit people leave off an essentials list during an outage.

02

Panels sized to their year

A 150-amp panel from 2001 usually takes an interlock or transfer switch without trouble. What it sets is how much of the house a generator can sensibly cover, and we show you that in writing.

03

Pad and inlet placement

Two-story homes here vary in where the panel sits relative to a workable inlet or pad spot. Clearances from windows, doors and the meter decide the spot, not whatever looks tidiest.

04

One building department

Lake Mary permits through the City of Lake Mary Building Department, and Duke serves the whole city. A fixed unit often needs a gas permit alongside the electrical, and our office runs both.

LAKE MARY PRICING

Real numbers before you call.

Same ranges we publish everywhere, because the work does not cost more just because of the zip code. You get an exact number at the free estimate.

Portable hookup — inlet & interlock
$1,200 – $2,400
Inlet box, breaker interlock kit, dedicated circuit, permit. Legal, safe, and it uses the generator you own.
Fixed standby, essential circuits 11–14kW
$6,500 – $9,500
AC, fridge, well, key outlets and lights. Transfer switch and pad included.
Fixed standby, whole home 18–24kW+
$9,500 – $18,000
Full automatic transfer. Multiple AC systems, long fuel or feeder runs, subpanel work.
NO SURPRISES

How the project goes

Jason handles most Lake Mary EV work. You will have a name and a text before anyone is at your door.

Day 1
Load calculation, site walk, and the honest conversation about portable versus fixed.
Day 1–2
Permit filed. Pad or inlet location prepared. Fuel coordination scheduled if needed.
Day 2
Interlock and inlet fitted, or generator set and transfer switch installed and fed.
Day 3
Commissioning: simulated outage, transfer verified, exercise schedule set on fixed units.
After
Inspection, then we walk you through starting it — including in the dark, in the rain.
VERIFIED CUSTOMER REVIEWS

Real reviews, word for word.

ALL 3070 REVIEWS →
★★★★★
Angi

"The electrician Keylin was very professional and helpful. Did a great job for my EV charger outlet installation."

DANIEL R. · EV CHARGER · JUL 2025
★★★★★
HomeAdvisor

"After getting the run around from other electricians I came across In Phase. Wish I found them first."

MARK B. · SERVICE UPGRADE · FEB 2025
★★★★★
HomeAdvisor

"Unlike some of their competitors, they don't try to up-sell products that aren't strictly necessary."

RYAN D. · PANEL UPGRADE · MAR 2026
★★★★★
Angi

"Talking with anyone I mean anyone at this company is like talking with a best friend."

DAVID C. · FEB 2026
QUESTIONS WE GET IN LAKE MARY

Straight answers.

Can you hook up the portable generator I already have?

Yes, and it is the most cost-effective thing we install. An inlet box plus a breaker interlock kit lets you power real circuits safely instead of running extension cords. Permitted, inspected, roughly $1,200–$2,400.

Is running cords from a portable really that bad?

Backfeeding a dryer outlet with a double-male cord is genuinely dangerous — it energizes your neighborhood service and it kills linemen. An interlock exists specifically so that cannot happen.

Whole home or essential circuits?

Essential circuits cost far less and cover what actually matters in an outage. We size both and let you see the difference in writing.

How fast does a fixed unit transfer?

Automatic switches typically transfer in 10–30 seconds after detecting loss of utility power.

Natural gas or propane?

Natural gas if it is at the street: no refueling. Propane means a tank, but works where gas does not run.

Does it need maintenance?

Fixed units need oil, filters and an annual check — it is a small engine that sits outside in Florida. Portables need fuel stabilizer and an exercise run before every season.

★★★★★
3070 reviews.
Earned one job
at a time.

Generators in Lake Mary, done right.

Free estimate. If you do not need the work, we will tell you — which is why people in Lake Mary call us back years later.

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