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Best generator install pros near Altamonte Springs, FL

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Top-Rated Generator install pros in Altamonte Springs - Updated Nov 2026

Avatar for Source Electric Services, LLC
Source Electric Services, LLC
4.9(
173
)
Fixed Generator - InstallPortable Generator - InstallGenerator - Install - For Business

Serving Altamonte Springs, FL and surrounding areas

Approved

Super Service Award Winner

In business since 2018

Free estimates

Emergency services offered

"Forrest is a professional all the way. I would trust and hire him for any job he can do, and maybe some he cannot. Honestly decent from the heart and concerned about his clients. He took time to guide me through a hands-on start-up of the generator he installed. Forrest made sure to clean the area he worked in and was extremely polite."
Exterior water home
Deflecting light onto home
High quality Interior components
Glamorous home with 40 foot Royal Palms.
Glamorous home

+9

Response time8 hrs
118 neighbors recently requested a quote
Recommended by88%of homeowners
Avatar for R & L Power Solutions LLC
R & L Power Solutions LLC
4.8(
58
)
Fixed Generator - InstallFixed Generator - RepairGenerator - Install+4 more

Serving Altamonte Springs, FL and surrounding areas

Approved

In business since 2020

Warranties offered

Credit card accepted

"These guys were top notch; very fair rate for installing a 220v outlet in my garage. They came on the weekend and did the work in less than an hour. Would definitely recommend R&L Power to anyone looking for quality electricians."
Electrical Project
Electrical Project
Exterior
Interior
SPAN Panel

+7

Response time8 hrs
5 neighbors recently requested a quote
Recommended by92%of homeowners
Avatar for In Phaze Electric, Inc.
In Phaze Electric, Inc.
4.6(
1,172
)
Fixed Generator - Install

Serving Altamonte Springs, FL and surrounding areas

Approved

Super Service Award Winner

In business since 2009

Free estimates

Emergency services offered

"Technician came right on time and installed the lights very quickly and efficiently. We were very pleased with the whole process and would not hesitate to recommend In Phaze to our family and friends."
Illuminating the Senses
EV charger installation.
Panel replacement
Hanging lights
Lighting installation

+14

Response time1 day
18 neighbors recently requested a quote
Recommended by90%of homeowners
Avatar for Smartron Electric, LLC
Smartron Electric, LLC
5.0(
37
)
Fixed Generator - InstallFixed Generator - RepairPortable Generator - Install

Serving Altamonte Springs, FL and surrounding areas

Approved

Super Service Award Winner

In business since 2016

Free estimates

Emergency services offered

"Ryan is pleasant, knowledgeable, took time to explain the process fully and did a great job. He gave me an estimate over the phone, called back to say he had a cancelation for the next morning and we scheduled. He was prompt, approachable and there were no surprises. He did a great job installing a grounded outlet for my garage door opener, cleaned up after himself and asked if I needed help returning boxes to their shelves in my garage. I will definitely call Ryan/Smartron Electric again if I need electricall services."
Chandelier installation
Chandelier installation
200A Transfer Switch
Generator installation
Generac Generator

+95

Response time6 hrs
Response rate95%
Recommended by87%of homeowners
Avatar for Benj Electric
Benj Electric
4.8(
23
)
Portable Generator - Install

Serving Altamonte Springs, FL and surrounding areas

Approved

In business since 2024

Free estimates

Credit card accepted

"Benjamin came out quickly to provide a quote for me in having a bathroom exhaust fan installed. He explained my options well. He had a better price than other companies quoted. I can highly recommend Benjamin for electrical service. He is very prompt, friendly, answers any questions, and does a quality job. I'll be sure to use him for some other projects I have coming up."
Solar
Meter / Main combo panel upgrade
After with panel cover
After - interior panel
Before

+2

Response time5 hrs
2 neighbors recently requested a quote
Recommended by83%of homeowners
Avatar for Elevation Electrical, LLC
Elevation Electrical, LLC
4.8(
9
)
Fixed Generator - InstallGenerator - Install - For BusinessPortable Generator - Install

Serving Altamonte Springs, FL and surrounding areas

Approved

In business since 2014

Free estimates

Credit card accepted

Abernethy Enterprises is committed to excellence in every aspect of our business. We uphold a standard of integrity bound by fairness, honesty, and personal responsibility. Our distinction is the quality of service we bring to our customers. Accurate knowledge of our trade combined with ability is what makes us true professionals. Above all, we are watchful of our customers' interests and make their concerns the basis of our business. Call us for your free estimate today!

Response time12 hrs
1 neighbors recently requested a quote
Recommended by100%of homeowners
Avatar for Nominal Voltage Contractors
Nominal Voltage Contractors
5.0(
9
)
Portable Generator - Install

Serving Altamonte Springs, FL and surrounding areas

Approved

In business since 2022

Emergency services offered

Warranties offered

Nominal Voltage Contractors is committed to excellence in every aspect of our business. We uphold a standard of integrity bound by fairness, honesty, and personal responsibility. Our distinction is the quality of service we bring to our customers. Accurate knowledge of our trade combined with ability is what makes us true professionals. Above all, we are watchful of our customers' interests and make their concerns the basis of our business.

200-Amp Panel Upgrade
200-Amp Panel Upgrade
200-Amp Panel Upgrade
200-Amp Panel Upgrade
200-Amp Panel Upgrade

+6

Response time3 hrs
Response rate100%
21 neighbors recently requested a quote
...
Showing 1-10 of 191
Generator Install FAQs, answered by experts

With proper maintenance, a whole-house generator can last between 20 and 40 years. The specific lifespan depends on how often and for how long the generator is used, and some models may have their life expectancy rated in hours of operation. To maximize its lifespan, expect to spend around $150 to $300 per year for annual maintenance checks from a qualified technician. During these checks, a technician will inspect the engine filter, starting mechanism, fuel, lubrication, and coolant levels. Consulting your installer and choosing a low-impact fuel like natural gas or diesel can also help ensure your generator lasts as long as possible.

Whole-house generators need to be installed on level ground several feet away from walls and other objects. Because they tap into the electrical system directly, they usually need to be close to your home electrical panel for a transfer switch installation. It also helps with installation if they are near to a gas line or propane tank installation.

A 1,500 square foot home will likely need a 15kW to 20kW generator. When deciding on whole-house generator size, add up the total wattage of the devices that you’d like to continue running during a power outage. That way, you can ensure you purchase a generator that can power your necessary appliances or medical equipment during an electrical emergency.

Here’s what you can run with different wattages and types of generators:

Portable generator:

  • 2,000 watts can handle a large appliance like a freezer or refrigerator, plus a few smaller items like phones or computer chargers. 

  • 4,000 watts will keep two large appliances operating and a few smaller devices.

  • 8,000 watts should power most essential appliances and other devices, including a sump pump, well pump, or your dishwasher.

Partial to whole-house generator:

  • 20,000 watts and above will make it seem like your home’s power is still on.

To determine the right size generator for your house, you should calculate the total wattage of the appliances and devices you want to power during an outage. List all essential items, note their start-up wattages, and add them together.

Here are some typical wattage requirements for common appliances:

  • Refrigerator: 600 watts

  • Large dehumidifier: 700 watts

  • Large window air conditioner: 1,400 watts

  • Water heater: 3,000 to 4,500 watts

  • Electric furnace: 5,000 to 25,000 watts

A 7,500-watt generator might be sufficient for essentials like a refrigerator, freezer, well pump, and lighting circuits. However, for high-demand items like a water heater or furnace, a whole-home generator is a better choice. A portable generator may be enough if you only need to power a few critical items.

While home square footage can offer a rough estimate, it is not always a reliable indicator. For reference, here are some typical generator sizes based on square footage:

  • 1,000 sq ft: 6–9 kW

  • 1,500 sq ft: 7–10 kW

  • 2,000 sq ft: 10–14 kW

  • 2,500 sq ft: 12–16 kW

  • 3,000 sq ft: 16–20 kW+

For the most accurate sizing, consult a professional who can calculate your home's peak and average power consumption and recommend the optimal generator.

The Altamonte Springs, FL homeowners’ guide to generator installs

From average costs to expert advice, get all the answers you need to get your job done.