Generac Generator Installation in Bangor & Orono, ME

Serving the Orono Area Since 1980

Rooted in Orono, Powering Maine Homes Since 1980

One Stop Home Repair has served Maine homeowners from Orono since 1980, growing into a full-service contractor with five specialized divisions. We are an authorized Generac dealer and install stand by generators for homes and businesses. Our crews work across Bangor, Brewer, Old Town, Hampden, Hermon, and out to Belfast, Bucksport, and Ellsworth. We know the rural lots, long driveways, and older homes where outages hit hardest.

In much of Maine, the heating system is the first to stop when the power fails. Boilers need electricity for their burners and circulators, as do pellet stoves and heat pumps. That is why we size every generator installation around the loads a household cannot lose in January.

Schedule Service.

Precision Generac Installation Process in Maine

We start with a property assessment and load calculation to determine your power needs, generator location, and fuel requirements. Then we select the right Generac model, prepare the pad, and set the generator in place.

We install the automatic transfer switch, complete the electrical and fuel connections, and configure the system. We then test the generator under load and verify automatic transfer when utility power fails and returns. Finally, we set the exercise schedule and controller and walk you through the operation.

• Authorized Generac Dealer and Installer
• Transfer Switch Wiring by Certified Electricians
• Permits and Inspections Handled for You

Maine Winters Shape Every Generac We Install

A standby generator in Maine has to start in deep cold, and Bangor sees plenty of it. According to the National Weather Service’s 2023 Annual Climate Review, Bangor had only 10 nights below zero that year, which was half of normal, and the city’s wind chill still reached minus 47 degrees in February.

Cold hits a generator at its weakest points: the battery loses cranking power and engine oil thickens. Generac recommends a battery warmer and an oil filter warmer where temperatures regularly fall below 32 degrees. A breather warmer is advised where sub-zero temperatures or heavy icing are routine. We include these accessories in the installation plan.

Placement matters as much. Generac’s clearance guidance calls for 5 feet from any operable window, door, or vent, 5 feet of open space above, and 3 feet at the front and both ends. Installation under a wooden deck is not allowed. We also keep units clear of roof edges where sliding snow lands and plan a path you can shovel in February.

Transfer switch connections and gas piping are licensed trade work in Maine, so we complete them with properly licensed tradespeople and pull the permits your town requires.

Schedule Your Generac Installation.

Whole House Generator Installation Options We Offer

Every home generator installation we complete in Maine is built around the house, not a package size. A home with a heat pump and electric range may need whole-house coverage. A camp may only need the boiler, well pump, and a few circuits.

• Whole house standby generator installation
• Essential electrical installation and upgrades
• Standby generators for houses, camps, and seasonal properties
• Standby generators for small businesses and commercial properties
• Automatic transfer switch installation and load management
• Generac service and repair
• Permits, inspections, and code compliance
• Portable generator inlet and interlock setup

Schedule a Generac Site Assessment

Financing That Puts Backup Power Within Reach

We offer financing on all of our services, including generator installation, so backup power does not have to wait until you have saved the full project cost.

• Equipment and installation together: one plan for the unit and the work to install it
• Monthly payments: the project cost spread over time instead of one lump sum
• Prequalification: a check that Generac says has no impact on your credit score
• Fast credit decisions: quick answers so your installation can be scheduled
• Simple application: one short form on our financing page

The lender sets rates, terms, and approval, all subject to credit approval. We can review available options when we quote your installation.

Apply for Financing

Why Maine Chooses Us as Their Generator Installer

• Serving Maine Since 1980: more than 45 years of work from our Orono base
• Authorized Generac Dealer: we sell, install, and service Generac standby generators
• Licensed and Insured: all work is licensed and insured under License #2705153491
• Multi-Trade Team: electricians and heating technicians coordinate the whole job
• 24/7 Emergency Service: help when storms hit, day or night
• 100% Satisfaction Guarantee: we stand behind every installation
• Best Price Guarantee: fair pricing that we back with our guarantee
• Storm Damage and Insurance Claim Help: assessments, documentation, and repairs after a storm.

Schedule Service

Be Ready for Next Outage With Expert Generac Service

Homeowners in Orono, Bangor, Brewer, Hampden, and towns across the Penobscot region rely on our authorized Generac technicians, certified electricians, and 24/7 emergency line, all from one local company here since 1980. Book your site assessment and head into winter with emergency backup power that starts on its own.

Schedule Service.

How to Size a Generac Standby Generator

Generac home standby generators generally run from about 10 to 26 kW. The right size depends on what you want running during an outage, not on the square footage of the house.

The first decision is coverage. An essential-circuit setup powers the loads you pick, such as the furnace or boiler, refrigerator, lights and outlets. A whole-house setup covers nearly everything, and it needs a larger unit.

• Well pump: a pump has a high starting load, which affects how large the unit needs to be.
• Heat pump or electric heat: electric heating adds a large continuous load.
• Central AC: the compressor start-up draw is one of the biggest loads in many homes.
• Electric range or dryer: these appliances draw a lot of power at once, so we decide whether to include them.

We confirm the size with a load calculation of your panel and the circuits you want covered. An automatic transfer switch then senses an outage, starts the generator and moves your home onto it, then switches back when utility power returns.

How Long a Generator Installation Takes

• Site visit and load calculation: typically a single visit to review the panel, the loads and the placement.
• Permits and fuel coordination: permit timing and propane or natural gas hookup scheduling vary by town and supplier, so this phase can take days to weeks.
• Install day: usually 1 to 2 days for the pad, generator, transfer switch and connections.
• Inspection and startup: the required inspection and the first startup and test happen once the work is complete.

These phases are typical, and your timeline depends on the site, equipment availability and inspection scheduling. We confirm the timeline after the site visit.

For Landlords and Property Managers

A standby generator can protect a rental property from an outage-related heating or water failure. We install Generac units for owners of rental homes and multi-unit buildings across Greater Bangor, and we can discuss which shared or essential loads make sense to back up.

• Rental and multi-unit installs: generator installation for rental homes and multi-unit properties across Greater Bangor.
• Tenant access coordination: we schedule site work and outage windows around your tenants.
• Urgent calls: our 24/7 line is answered for heat, plumbing and power emergencies.
• One company for turnover: electrical, plumbing and handyman work for the same property handled by one team.