I manage properties
Standardize the doors your team hears about most.
Start with one property, not a portfolio. Shield is billed to your owners, and you're paid to administer it.
For property managersNorthern Michigan vacation-rental technology · north of Grayling
Airbnb treats loss of internet as a Covered Issue—guests who report it typically get around 30% back, and the review outlasts the refund. JackLine Technologies tests the systems guests actually depend on, fixes what's broken, and documents the rest. Start with one property for $149.
If the audit doesn’t surface at least three fixable issues, there’s no charge. The $149 fee is credited toward approved corrective work booked within 30 days.
Modern rental technology, rooted in a Northern Michigan family legacy.
I manage properties
Start with one property, not a portfolio. Shield is billed to your owners, and you're paid to administer it.
For property managersI own a rental
Especially if you're four hours away in January. Documented, tested, and understandable by whoever is closest.
For ownersThe friction
Technology should support the stay—not become the manager's late-night troubleshooting assignment.
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What you actually get
Every audit ends in the same document: seven categories, each marked fix-now, plan-it, or holding, with what was measured and what to do about it. Here is a real one.
Redacted from an actual audit. Four bedrooms, lakefront, Northern Michigan.
Modem is owner-supplied and six years old. The provider account is still in a former manager’s name, so no one on site can escalate an outage.
One router at the front of the house. 240 Mbps at the router, 8–14 Mbps in the bunk room and on the lower deck. No guest network—guests and the owner’s storage share one SSID.
No battery backup anywhere. A twenty-minute outage takes down internet, the lock’s Wi-Fi bridge, and the freeze-sensor hub simultaneously.
Three televisions, three different input paths, two remotes missing. The printed instructions describe a soundbar that is no longer installed.
Smart lock is current, codes rotate per booking, and the lockbox backup is documented. Batteries changed in January; next change noted for August.
Freeze sensor is installed and reporting, but alerts route to an inbox nobody monitors. A test alert sent at the start of the visit was still unread ninety minutes later.
No device inventory. Router password on a sticky note behind the television. The cleaner has no restart instructions and has been calling the owner directly.
How it works
Test one property under normal conditions and find the actual failure points.
Approve only the work and equipment the scorecard says the property needs.
Leave a record the owner, manager, and cleaner can all use—then decide about ongoing support.
What it costs
Hardware, subscriptions, travel, cabling, permits, licensed-trade work, and third-party charges are separate unless a written proposal says otherwise.
Step one
$149 per property
Credited toward approved corrections booked within 30 days
A 60–90-minute on-site review of everything guests and managers depend on, and a written red/yellow/green scorecard delivered the next business day.
What's includedStep two
Quoted from the scorecard
Labor from $249; hardware, permits, and licensed trades separate
You approve only what the audit found. Nothing is sold before it is tested, and no property gets a package it doesn’t need.
What's includedStep three
$149 per property, per month
$399 onboarding · $1,639 prepaid annually (eleven months for twelve)
Ongoing support for the owner or manager once the property is documented and working. Optional, and only worth buying after the corrections are done.
What's includedFamily technology legacy
A jackline is the safety line run the length of a boat's deck—the one you clip into so you don't go overboard. It's also what Jack's Telephone Company ran, one line at a time. JackLine Technologies carries forward that standard: show up prepared, solve the real problem, and leave the customer with a system they understand. Founder Kody Bigelow brings more than 15 years of low-voltage and hospitality technology experience to Northern Michigan vacation properties.
Straight answers
No vague package promises, hidden hardware assumptions, or unsupported guarantees.
A JackLine Technologies on-site audit is $149 per property. It runs 60–90 minutes, covers seven systems, and produces a written red/yellow/green scorecard delivered the next business day. The fee is credited toward approved corrective work booked within 30 days, and if the audit doesn’t surface at least three fixable issues there’s no charge.
JackLine Technologies is a specialized vacation-rental technology service covering Northern Michigan, north of Grayling. Larger projects are considered further afield, including the Upper Peninsula. It is independent of any internet provider, booking platform, or property-management company.
Airbnb treats loss of internet as a Covered Issue under its Rebooking and Refund Policy, so a guest who reports it can receive a partial refund taken from the host payout, and severe amenity disputes can reach a substantial share of the booking. The review usually costs more than the refund. Testing coverage where guests actually sit, separating the guest network, and documenting a restart procedure are the practical defenses.
Yes, in almost every case. A single shared network puts guests on the same segment as the owner’s storage, cameras, and personal devices, and it makes a password change disruptive for everyone. A separate guest network with its own name and password isolates guest traffic and lets credentials be rotated without touching owner equipment.
Freeze and leak sensors only help if three things are true: they have power and connectivity during the outage that usually causes the problem, their alerts route to a named person who is actually available, and that person has documented instructions. Testing the alert path matters more than the sensor. Device alerts supplement professional winterization and insurance—they never replace them.
For project work, yes. A full network build, a multi-property install, or a portfolio standard justifies the drive across the bridge — St. Ignace, Sault Ste. Marie, Manistique, Munising, Escanaba, Marquette and between. A single $149 audit does not; routine service stays north of Grayling in the Lower Peninsula. Travel and lodging are quoted in the proposal rather than absorbed.
The owner. At typical Northern Michigan rents, a per-door monthly technology plan costs more than most managers net on that door after their management fee, so a manager-paid plan rarely survives the math. JackLine bills ongoing plans to the property owner and pays the manager $20 per enrolled door per month to administer it.