What standby generator installation actually costs in Mobile County, what drives the number up or down, and how financing turns whole-house backup power into a monthly payment. Free in-home consultation, exact installed price in writing.
Call (251) 680-7500 Request a Free ConsultationEveryone who calls us about a generator asks the same first question, and the honest answer is that a standby generator installation is really four jobs priced together: the generator itself, the automatic transfer switch, the fuel connection, and the electrical work that ties it all into your panel. Two houses on the same street in Saraland can land in different places because one has natural gas at the meter and a modern 200-amp panel and the other needs a propane tank and a service upgrade.
Professional Systems is a certified Generac® dealer, and generator installation is where holding both an electrical and an HVAC license earns its keep: we size the unit around the air conditioning that dominates every Mobile County load, run the electrical, coordinate the gas work and pull the permits with one crew. The consultation is free, and the price you get is the whole scope in writing, not a unit price with the rest to follow.
Free in-home consultation. One exact installed price. Financing available.
Call (251) 680-7500
Free in-home consultation, one installed price in writing, $500 off and financing available.
Size is decided by a load calculation on your actual home, not by square footage. These are the classes we quote most, per Generac's own guidance.
Refrigerator, lights, internet, a sump or well pump and select circuits. The lowest cost of entry, and with a load manager it can prioritize a single AC unit.
Carries everything, central air included. This is the most-installed class in Mobile, and 22 kW is the size Generac calls the whole-home standard for most homes.
Dual AC systems, electric heat pumps, pools, shops and EV charging, with headroom, from the largest air-cooled lineup in the industry.
Storefronts, clinics, restaurants and multi-tenant buildings that can't afford a dark day. Sized from the panel schedule and the equipment that has to stay on.
Smart modules stage the big loads so a smaller unit runs a larger house intelligently. Often the difference of one size class on the quote.
Natural gas where service exists means no tank and effectively unlimited runtime. Propane is the standard alternative farther out, and we coordinate either.
A whole-home generator is a four-figure to five-figure decision, and the best time to make it is a calm month, not the week after a named storm when lead times stretch. Financing is available on generator installations, and the order matters: the free consultation comes first, so you apply for the exact installed amount rather than a guess. We walk you through the current options and what the monthly payment looks like before you sign anything.
Two standing offers apply to whole-house installations: $500 off the installation, and a complimentary home electrical safety inspection with every generator estimate, which is how we catch the panel issues that would otherwise surprise you. Mention either when you call. See our whole-house generator installation page for what the install itself includes.
After the install, budget for one annual service. Our $375 annual generator maintenance covers oil and filters, the battery, a load test and a pre-hurricane-season check, and it's what keeps the Generac warranty intact.
We measure the loads that matter in this climate, starting with the air conditioning, and spec the kilowatt rating that carries what you need without paying for capacity you'll never use.
Where the unit sits, how the gas or propane gets to it, clearances, and the pad and anchoring a hurricane zone requires.
Whether your panel takes a transfer switch as-is, whether load management makes sense, and what the electrical scope looks like.
One exact installed price covering unit, switch, pad, fuel work, electrical, permits and inspection, plus the financing options and timeline. Most residential installs take a day or two on site.
From Saraland and Satsuma down through Theodore, Grand Bay and Dauphin Island, every September the calls come in the same order: first the homeowners who lost power for four days last time, then the ones whose generator hasn't been serviced since it was installed. Raised homes in Midtown need thoughtful pad placement; waterfront properties on Dog River and Fowl River drive enclosure and maintenance choices because of salt air; businesses along Airport Boulevard and Highway 90 need units sized from a panel schedule, not a brochure.
Hurricane-zone anchoring, flood-aware placement and code clearances aren't special requests here; they're the default spec. Professional Systems is headquartered at 216 E I-65 Service Rd N and installs standby generators across Mobile, Prichard, Saraland, Semmes, Theodore, Tillmans Corner and the rest of Mobile County, as well as across the bay in Daphne, Spanish Fort and Fairhope.
"They solved my many electrical problems in my 58 yr old home & installed a whole home generator! They even found & fixed a problem that could have easily started a fire in my attic! Excellent work at a fair price."
— Betty M., Google review"Robby and PPS did a superb job installing my standby home generator at a competitive price. Coordination with the utilities companies and the required inspectors was smooth and easy, and the actual installation process, led by Ryan and Chase, was excellent."
— Chris G., Google review"A storm came through and messed up the electric in our house. We got a quote quickly and they got us up and running fast! The guys did a great job and even helped us save money."
— Devan H., Google reviewIt depends on the kilowatt size your load calculation calls for, the transfer switch configuration, the gas or propane work your property needs, and the condition of your electrical panel. We quote the entire scope as one exact installed price in writing after a free in-home consultation, and financing is available.
Yes. Financing with monthly payments is available on generator installations. The consultation comes first so you apply for the exact amount; we walk you through the options and the payment before you commit.
Where natural gas service exists it is usually the answer: no tank to refill and effectively unlimited runtime. Propane works anywhere with a properly sized tank and is the standard choice farther out in the county. The consultation covers the cost of either connection.
For most Mobile County homes, whole-home coverage including central air lands in the 18 to 26 kW range, but the real answer comes from a load calculation. Air conditioning is the dominant load here, and because we're HVAC-licensed too, we size around your actual system rather than a guess.
Yes. Standby generator installations require electrical and typically gas permits and inspection in the City of Mobile and Mobile County, plus code-compliant placement and hurricane-rated anchoring. We handle all of it as part of the installed price.
Most residential whole-house installations are completed in one to two days on site once permits and equipment are in hand. Lead times stretch after named storms, so the calm months are the smart time to schedule.
Our annual maintenance service is $375 and covers oil and filters, the battery, a load test and a pre-hurricane-season check. The unit also self-tests weekly on its own. Annual service is what keeps the Generac warranty intact.
Something we didn't cover? See our full FAQ page or call (251) 680-7500.
No-start diagnosis, transfer switch repair and $375 annual maintenance from a certified Generac dealer.
Generator RepairInstallation, repair and maintenance for standby generators across the Gulf Coast.
View ServicePanels, EV chargers, rewiring, lighting, inspections, the full electrical lineup.
Electrical ServicesA licensed electrician sizes your home, walks the placement and fuel options, and gives you one installed price in writing, with financing options alongside it.
Call (251) 680-7500 Request a Free Consultation