Authorized Generac Dealer — Northern Michigan
Whole-Home Standby Generators, Installed Right
We buy direct from Generac and handle everything — the generator, gas line, transfer switch, electrical, permits, and utility coordination. One call. One contractor. Done.
0% financing available for 18 months on qualifying Generac systems.
What's Included in Every Colvin's Generator Installation
This isn't just a generator sale. It's a complete, code-compliant, ready-to-run backup power system.
The Generator
Generac air-cooled or liquid-cooled standby unit — sized right for your home's actual load.
Automatic Transfer Switch
Detects an outage within seconds and switches your home to generator power automatically — no manual startup required.
Gas Line Installation
We run a dedicated natural gas or propane supply line to your generator pad. Licensed and code-compliant.
All Permits & Inspections
Mechanical, electrical, and gas permits pulled and scheduled by us. You don't lift a finger.
Electrical Work
Our licensed electricians handle all transfer switch wiring, load calculations, and circuit protection. No outside electrician needed.
Utility Coordination
We notify and coordinate with your utility company so everything is above-board from day one.
The Real Cost of "Cheap"
Why Not Just Buy from a Box Store?
Box stores sell the generator. You're responsible for everything else. Here's what most homeowners don't realize until after they've bought one.
You still need a licensed electrician
A transfer switch is required by code — that's a separate electrician bill of $1,000–$2,500+, not included in the box store price.
You still need a gas line run
If you don't have a dedicated gas line to the generator pad, that's another licensed contractor — $500–$1,500+ depending on run length.
Permits are your problem
Mechanical, electrical, and gas permits are required. Pulling them, scheduling inspections, and coordinating is all on you.
Utility coordination takes weeks
Your utility company must be notified. Delays are common when you're managing it alone.
Wrong sizing = big problems
Over-sizing wastes money. Under-sizing trips the generator during a storm. Colvin's does a load calculation — included.
Service is a mystery
Box stores don't service what they sell. When your generator needs its first tune-up, you're on your own finding someone.
Generac Standby Lineup
Find the Right Size for Your Home
Not sure what size you need? We do a full load calculation before recommending anything. Call us and we'll help you figure it out.
Cabin, small home, or critical circuits only
- Well pump
- Refrigerator & freezer
- Lights & outlets
- Phone charging & Wi-Fi
Best for seasonal properties or cottages
Average northern Michigan home (1,200–2,000 sq ft)
- Everything in 7 kW
- Heating system & thermostat
- Sump pump
- Window AC or mini-split
Handles the essentials without interruption
Larger homes, home office, or medical equipment
- Whole-home coverage
- Central A/C
- Electric oven or range
- Multiple zones
No compromise — run everything as normal
Large homes, outbuildings, or light commercial
- Large square footage
- Workshop or garage
- Multiple HVAC systems
- Full appliance load
For homes that can't afford any downtime
Pricing varies by home size, gas availability, and installation requirements. Call for a free, no-obligation estimate.
0% Financing for 18 Months
Don't let sticker price stop you from having backup power when you need it. Qualifying Generac standby systems are available with 0% interest financing for 18 months.
How It Works
Simple, start to finish. You make one call — we handle the rest.
Free Estimate
We visit your home, assess your electrical panel, gas supply, and load requirements — no charge.
Right-Size Recommendation
We recommend the correct Generac model based on your actual home load, not a guess.
Turnkey Installation
Our crew handles the generator, gas line, transfer switch, electrical, permits, and utility notification.
Walk-Through & Club Signup
We walk you through your new system and offer a Colvin's Club membership to keep it running for years.
Protect Your Investment with Colvin's Club
Generator members get annual service, priority emergency response, 10–15% repair discounts, and no overtime fees — for just $180/year. Generators that aren't maintained regularly fail when you need them most.
Ready to Stop Worrying About the Next Outage?
We buy direct from Generac. We install everything. We service what we sell.
Call or request an estimate — no pressure, just honest answers from your local generator experts.
Financing available · Serving Ogemaw, Iosco, Roscommon, Oscoda, Alcona, Arenac & Gladwin Counties