One contractor,The Whole Path.

CDM Systems, LLC is a network infrastructure contractor working out of Bremen, Georgia, owned and run by Andrew ODonnell. The design, the cable, the equipment, the configuration and the support all come from the same place, and the lane is narrow on purpose. Infrastructure that works quietly is the whole ambition.

Get a free assessment What we do

One contractorDesign through support

One platformUniFi, Protect, Access

DocumentedHanded over, in your name

Bremen, GA 30110Service-area business

Who the work is for

Three kinds of building,One way of working.

The buildings have nothing in common architecturally. What they share is an expectation that the network disappears into the background and stays there.

01 / Luxury residential

The house nobodyplanned a network for.

Large homes collect equipment one purchase at a time — cameras, thermostats, televisions, an office that has to be a real one — on top of whatever the internet company left in a corner of the basement. The requirement is commercial. The label on it says residential.

Coverage planned against the floor plan, not the router
Pre-wire decided while the studs are still open
Cameras, gates and thermostats counted as clients
Nothing visible that does not have to be

Luxury home networks

02 / Churches & venues

A Sunday does notreschedule itself.

A sanctuary has a deadline that will not move, a room that fills and empties on a timetable, a livestream that cannot be left competing for air, and volunteers who need something they can run without making a phone call first.

Access point count set by the crowd, not the floor area
The stream given a wired path of its own
Guest traffic kept away from staff and giving
Documented so a volunteer can follow it

Churches & venues

03 / Small business

The closet everybodyhas stopped opening.

Most small offices have a closet that grew one cable at a time until nobody would touch it. The job is turning that into something labeled, and making sure the doors, the cameras and the card reader keep working on the morning the line drops.

Cabling brought home to one labeled panel
Cameras, doors and access on one platform
Guest and staff traffic separated properly
Failover so the building keeps running

Small business

How the work is run

Six habitsThat do not change.

None of this is impressive on a brochure. It is simply how every job is run, and it is the part people notice a year later rather than on the day.

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One contractor, the whole path

Design, cabling, equipment, configuration and support come from the same place. There is no seam between vendors for a problem to hide in. When the WiFi is bad in the back bedroom, nobody is standing there blaming the cabling crew, because the cabling crew was us.

A deliberately narrow lane

Infrastructure, not help desk. No general PC repair, no printer support, no deep server administration. Being clear about that is the point, not a caveat. A contractor who claims every category is either subcontracting the parts he does not do or learning them on your building.

One platform, known cold

CDM standardizes on Ubiquiti UniFi, including Protect for cameras and Access for doors. That means one interface to hand over, one set of behavior to know properly, and parts that still match in two years. Four brands sharing a closet is how a system becomes unsupportable — usually by somebody who did not install it.

Labeled while it is open

Runs are marked at both ends as they are pulled rather than reconstructed from memory afterwards, and the wall jack carries the same number as the panel port. An unlabeled cable is an unpaid hour for whoever opens that closet next, which may well be us.

The system belongs to you

Documentation, the port map and the credentials are handed over in the owner’s name at the end of the job. The client owns the system, not CDM. Nothing is parked in an account you cannot reach, and bringing in somebody else later is a phone call rather than a rebuild.

The assessment is given away

We walk the building, look at what is really installed, and say what is fine, what is a problem and what it would take to fix it — whether or not the job is won. Some of those conversations end with the honest answer being that you do not need to spend anything yet.

What you keep

Mounting the equipmentIs the easy half.

The difference shows up the first time somebody has to change something, a year later, without the person who installed it standing next to them.

Handed over / every job

Labels at both ends

Every run marked at the jack and at the panel with the same number on both. Working out which cable is which should not take two people and an afternoon.

The port map

Written down: which port feeds which room, which access point and which camera. The closet gets read rather than reverse-engineered.

Credentials in your name

The controller, the accounts and the recovery details belong to the owner. CDM holds the access it needs while it is supporting the system, and that access can be removed.

What it does when it breaks

Which lights mean what, what keeps working when the line drops, and which faults are ours to fix rather than the internet provider’s.

Our lane

Network design, structured cabling, WiFi coverage inside and out, racks and network storage, UniFi Protect cameras, UniFi Access doors, production AV, and the monitoring and support that keeps all of it running afterwards.

Not our lane

General PC repair, printer support and deep server administration are not what CDM does, and there is no version of this page where that quietly changes. Line-voltage electrical work and the drywall patching after a retrofit go to the trades that own them. If what you need is a help desk, you hear it on the first call rather than at the end of a quote.

Common questions

Fair questionsTo ask a contractor.

Including the two most people are too polite to ask out loud, which are what the work does not cover and who owns the system at the end.

Who is CDM Systems?

CDM Systems, LLC is a network infrastructure contractor based in Bremen, Georgia, owned and run by Andrew ODonnell. It designs, installs and supports networks, structured cabling, WiFi, cameras and access control for luxury homes, churches and small businesses across West Georgia and metro Atlanta. It is a service-area business, which means the work happens at your building rather than at a storefront.

What does CDM Systems not do?

General PC repair, printer support and deep server administration. That is help-desk work, and it is a different job with a different rhythm. The lane here is infrastructure — what is in the walls, in the closet, on the ceilings and on the doors. Saying so plainly saves everybody a wasted visit, and a contractor who claims all of it is usually subcontracting the parts he does not do.

Why does CDM standardize on Ubiquiti UniFi?

Because one platform, known properly, beats four brands sharing a closet. UniFi covers the gateway, the switching, the wireless, the cameras through Protect and the doors through Access, so there is one interface to hand over and one set of behavior to learn. It is not the only equipment that works. It is the platform CDM standardizes on, and knowing one platform properly is worth more on the day something is wrong than a spec sheet ever is.

Do I own the system when the job is finished?

Yes. The documentation, the port map and the credentials are handed over in the owner’s name. CDM keeps the access it needs while it is supporting the system, and that access can be removed. Nothing sits in an account you cannot reach, and hiring somebody else later is a phone call rather than a rebuild. A system you cannot get into is not really yours.

Do you actually work in my town, or is it just listed?

Bremen is the base, and the radius is published with real drive times rather than a claimed coverage area. Haralson and Carroll County are a short drive — Waco, Buchanan, Temple, Mt. Zion, Tallapoosa, Carrollton, Villa Rica and Bowdon. Polk, Douglas, Paulding, Cobb, Coweta and Fayette are worked regularly and take longer to reach, which changes how a job there is scheduled. You hear that before it is booked rather than afterwards.

No cost, no obligation

Start with aFree network assessment.

The quickest way to judge a contractor is to have one look at something and tell you what he sees. We walk the building, read what is actually installed, and say what is fine, what is a problem and what it would take to fix it. You keep the findings whether or not you hire us.

Call (770) 828-5748 Contact CDM

Typical response — same business day