Every real, verified company that sells, installs, and services whole-home standby generators in Fairfield County — compared in one place, with Google ratings, services, and one-tap calling. Built for the week the power goes out — in January as much as in August.
So don't just compare prices. Download our free one-page PDF — the questions to ask every installer — and include them with each quote request. How a company answers tells you more than its price does.
Filter by city, compare ratings and services, then call directly or request up to three quotes with one form. Every company below was verified against its Google profile and website.
Stamford-based, factory-authorized Generac dealer serving Fairfield County, also providing heating, cooling, propane, and electrical services. It handles generator selection, installation, permitting, and ongoing service, with free in-home estimates.
Newtown-based electrical contractor serving Fairfield County for over 20 years, offering Generac generator sales with financing, service upgrades, and emergency electrical work. It serves homes and businesses across the county, from Danbury and Ridgefield to Fairfield and Westport.
Connecticut electrical contractor with over 40 years serving the state, and an authorized dealer for Generac, Kohler, and Briggs & Stratton standby generators. Its O.J. Mann Generators division offers turn-key sales, installation, and maintenance with in-house technicians and no subcontracting.
Founded in 1964 in Bridgeport, Northeast Generator is a family generator company specializing in home and commercial standby power across Connecticut and New York. It is Kohler Titan Certified, handles multi-brand sales, installation, and service, and offers 24/7 emergency support with a two-hour response across its service area.
Family-owned Fairfield electrical contractor since 1997, offering residential, commercial, and industrial electrical services with over 30 years of experience. Its team handles generator installation among other electrical work.
Connecticut generator specialist since 1997, selling, installing, and servicing Cummins, Rehlko (formerly Kohler), and Generac systems statewide. It runs a 100% turnkey process from system advice through installation and ongoing maintenance, for homes and businesses.
Norwalk electrical contractor serving Fairfield County since 1999, licensed and insured, with generator installation and automatic transfer switches among its services. It also handles new-construction wiring, lighting design, solar, and emergency electrical service.
Wilton-based generator specialist serving southwestern Connecticut since 1990, with more than 9,000 installs completed. A Generac PowerPro Premier dealer with factory-trained expertise, it also services Generac, Kohler, and Cummins equipment and manages over 7,500 service contracts.
Wilton electrical contractor trusted for over 40 years for electrical services of all types and sizes, from new construction and remodels to service upgrades and preventative maintenance. The company states it is fully licensed and bonded, and local listings confirm generator installation among its services.
Stratford electrical contractor listed locally for home generator installation and electrical work. Its former website is no longer active (the domain is now parked), so no website is listed here; call to confirm current services.
Connecticut electrical contractor serving homes and businesses statewide, including generator installation, as shown in its project photos and testimonials. It handles residential and commercial electrical work from its Stratford base.
Greenwich-area generator specialist focused on Generac standby systems, with planning, installation support, maintenance, diagnostics, and annual agreements. Based in Riverside, it currently serves all of Greenwich, with Stamford expansion planned; no customer visits at its address.
Family-owned generator company since 2007 with Stamford and Wallingford locations, serving homes and businesses across Connecticut. Its factory-certified team sells, installs, repairs, and maintains Generac, Kohler, Briggs & Stratton, Winco, and Champion systems, with 24/7 emergency service and real-time monitoring.
Family-owned Norwalk electrical contractor founded in 1987, specializing in high-end residential work and automatic standby generator installation and service. Its owner earned his Connecticut E-1 license in 1987, and the firm serves Fairfield and Westchester County homes and businesses.
Wilton- and Norwalk-based electrical and generator services firm (Lucci Electrical & Generator Services) serving Fairfield County towns including Westport, Weston, Ridgefield, and New Canaan. It handles standby generator installation alongside general electrical work.
Bridgeport-based electrical contractor listed locally for home generator installation and electrical work. Its website could not be reached during this build, so details here come from directory records; call to confirm current services.
Stratford electrical contractor listed locally for home generator installation and electrical work. Its previously listed website now belongs to an unrelated Tennessee firm and is not linked here; call to confirm current services and website.
New York-based generator specialist serving western Connecticut, including Fairfield County, from its Hudson Valley locations. Its factory-trained, EGSA-certified technicians service Kohler, Generac, Cummins, Onan, Briggs & Stratton, and WINCO systems, with 24/7 emergency support and commercial rentals.
Greenwich-based authorized dealer and service provider for Generac and Kohler home generators, and a PowerPro Elite dealer for both brands. It sells, installs, and maintains standby systems across Fairfield County and Westchester County, with 24/7 emergency service.
Stratford-based electrical contractor offering home generator installation alongside panel upgrades, EV charging, and electrical repair, with 24-hour service. Owner Chris Brown is an electrician of over 28 years, and the firm has won HomeAdvisor's Best Of award three times.
Southbury-based firm that does only Generac: design, turn-key installation, and ongoing service for homes and businesses. It handles permits and gas-line coordination in-house, gives written task-by-task estimates, and is available 24/7 by email, text, and phone.
Family electrical contractor founded by Joseph Tomas after he earned his electrical license in 1991, now operating from Norwalk with his son Emilio, who joined in 2023. With over 30 years of experience, it serves residential and commercial clients across the tri-state area, including generator installation.
Bridgeport commercial and municipal electrical contractor with over 30 years of experience, providing licensed and union electrical services across Fairfield County. Its work includes critical power and emergency services, and local listings confirm generator installation among its services.
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In Fairfield County, outages come in every season: nor'easters and ice storms in winter, tropical storms and heat-wave grid strain in summer. A standby generator starts itself in seconds — heat, refrigerator, lights, well pump, medical equipment — and runs for days on natural gas or propane. Every company in this guide sells, installs, and services them right here in Fairfield County.
Most Fairfield County homeowners pay $12,000–$20,000 installed for a whole-home standby generator. The spread depends on size (kW), whether your home has natural gas or needs a propane tank, panel condition, trenching distance, and permit requirements in your town.
Read the full Fairfield County standby generator cost guide →
In practice, yes. Your town requires an electrical permit for standby generator installs, and usually a gas permit too, with inspections. Connecticut's electrical code and your town's rules set pad, clearance, and setback requirements. Reputable installers pull the permits for you — treat any installer who suggests skipping permits as a red flag, because an unpermitted unit can complicate insurance claims and resale.
Most homes land at 18–22 kW with load management — enough for one central AC or heat pump, kitchen, laundry, well pump or sump pump, and lights. Homes with two AC units, a pool, electric heat, or a large kitchen usually go 24–26 kW. A good installer does a load calculation at your home rather than guessing from square footage.
Usually 2–5 weeks from signed quote in the off-season: site visit and load calculation, permits (often the slowest step), pad and gas work, then a one-day equipment install and startup. After a major storm, lead times of 8–12 weeks are common.