You are not the one standing in the bonus room with no signal. You are just the one who gets the call. CDM runs the low-voltage side of new construction across West Georgia — cable in at rough-in, walls photographed before the board goes up, and a handover packet with our number on it instead of yours.
There is genuine volume going up out here — Villa Rica permitted 588 housing units in 2025, and Temple has approved roughly 400 more across three residential projects. The low-voltage scope does not look the same on all three kinds of job below, and pretending it does is how a bid goes wrong.
01 / Custom home
One house.Walked, not assumed.
A one-off plan gets a one-off drop schedule. We walk the drawings with you and, where the client wants to be involved, with them — so the scope is agreed before it is framed rather than argued about at trim-out.
Plan set marked room by room before rough-in
Equipment location settled while it is still a drawing
Ceiling positions for access points fixed on the plan
Client-facing questions answered by us, not by you
Where a plan repeats, the low-voltage scope should repeat with it. One drop schedule per plan, the same equipment location every time, and a crew that does not have to relearn the house on lot fourteen.
One scope per plan, reused across the lots
Consistent equipment location and rack layout
Rough-in that slots into the same slot every time
Documentation that reads the same in every closing packet
On a remodel the walls are open in one wing and closed in the rest of the building. The useful conversation is about what to reach while we have the chance, and what is honestly not worth opening a ceiling for.
What is already in the walls traced and tested first
Sleeves left through the open section for later pulls
Runs into the finished side priced with the patching named
A plain answer on which drops are not practical at all
The low-voltage sub is off the job long before closing. You are not. That is the whole argument for getting this right at rough-in, and it is cheap insurance on your own name.
Low voltage goes in after the electrical rough-in and before insulation and drywall. That gap is the whole job. Framing is up, line voltage is pulled, every stud bay is still open. Put us on the schedule at that point and we work inside it. Put us on after the board is hung and the same scope turns into fishing walls, cutting access holes, and a patch-and-paint line item that nobody bid.
01
What we need from you
Four things, and none of them are difficult. A plan set, a decision on where the equipment lives, the ISP demarcation location, and access at the right stage. The equipment location is the one that gets left until last and should not be — it needs a circuit and it needs air, so it belongs on the drawing rather than in whatever closet is still empty at trim-out. We do not need the house to ourselves. We need the walls, and we need to know the sequence.
02
What you get back
A marked-up drop schedule before anybody pulls cable, so the scope is on paper instead of in somebody’s memory. Photographs of every open wall before the drywall crew arrives. Runs terminated, tested and labeled at both ends. Studs left with nothing hanging out of them and no bucket of offcuts in the corner. And a trim-out with nothing on it that was not on the drop schedule.
03
The electrician runs power. We do not.
Line voltage is not our lane and we do not present it as though it were. Low voltage is a separate trade with a separate scope, and the two sit alongside each other at rough-in rather than one covering the other. In practice that means agreeing the equipment location early so it gets a circuit, keeping our runs clear of the power runs, and taking the walls when they are free rather than when it happens to suit us.
04
Trim-out on the finish schedule
Plates, jacks, ceiling access points, cameras and the rack go in with the rest of the finish work — not after the punch list is closed. The network is commissioned and tested before the walkthrough, so the owner is not standing in a finished house waiting on the one trade that is still coming back.
05
The packet carries our number
Every port marked at both ends, a map of what runs where, the rough-in photographs, and the admin accounts in the owner’s name. The support number on it is ours, not yours. A homeowner who cannot get signal in the bonus room calls whoever they have a number for. Eighteen months after closing, that should not still be you.
06
What lands in your inbox
Three drawings,Then nobody improvises.
A pre-wire scope is not a shopping list. It is a set of drawings agreed before anybody pulls a spool off the truck — which is also what makes it possible to price it and put it in a bid.
The drop schedule
Every television, desk, ceiling access point, camera and doorbell marked on the floor plan, each run home-running back to one point. This is the document the trim-out gets measured against, so nothing arrives on it that was not agreed.
The riser and the sleeves
How cable gets from the equipment space up through a sleeved conduit to each floor, with a pull string left in place. The sleeve is the part that decides whether the next change is an afternoon or a demolition job.
The equipment elevation
What actually goes in the closet you are giving up, drawn to size before you frame it — so the space gets its circuit, its airflow and its depth rather than whatever is left once everything else has been claimed.
What goes to the owner
The callback goesWhere the paperwork points.
A homeowner with a problem calls whoever they have a number for. If the only number in that house is yours, every network question is a builder question. This is how it stops being one.
The as-built map / item 01
01
The as-built map
What runs where, terminated at which port, and what stops working if a given piece fails. Drawn from what actually went in, not from what was drawn in March.
02
The rough-in photographs
Every wall shot before the board went up, with a fixed reference in frame. Worth real money to whoever cuts into that wall for the next thirty years.
03
Labels at both ends
Every run marked at the jack and at the panel. If we never come back, the next person can still read it.
04
The owner’s own accounts
Admin logins in the homeowner’s name, handed over in writing. Their house, their system, and our contact details on the paperwork for the questions that come later.
Our lane
The low-voltage side of the build — network cable, access point drops, camera and door runs, conduit and sleeves, the rack and its termination, commissioning at trim-out, and the documentation that goes to the owner at closing.
Not our lane
Line-voltage electrical, structural work, home theater calibration and whole-house audio design. We work alongside those trades and make sure the cable they are going to need is already in the wall before they arrive.
Common questions
Asked by builders,Usually before the bid.
Almost all of it comes down to three things: when we need the walls, whose scope this sits in, and who is holding the phone eighteen months after closing.
When in the schedule do you need the house?
After the electrical rough-in and before insulation and drywall. Framing complete, line voltage pulled, stud bays open — that is the window for the cable itself. The conversation should happen well before that, ideally while the plan set is still being marked up, because where the equipment lives and where the ceiling access points go are decisions about the floor plan rather than about hardware. If you have a rough-in date, tell us and we work backward from it. We do not need the house to ourselves, only the walls, and we can work around the other trades where the sequence is known in advance.
01
Is low-voltage wiring part of the electrician’s scope?
On most projects it is not, and this is the most common gap on a new build. The electrician runs line voltage — the wiring that powers the house. Network cable, access point drops, camera runs and doorbell wiring are low voltage, and that is normally a separate contractor with a separate scope of work. If nobody was hired for it, nobody is pulling that cable, and it tends to get discovered the week the drywall goes up. It is worth reading the electrical scope rather than assuming. If it does include some low-voltage rough-in, read what it actually covers, because a pair of wall jacks in a hallway is not a network.
02
What do you need from us before rough-in?
A plan set, a decision on where the equipment will live, the ISP demarcation location if it is known, and access at the right stage. The equipment location is the one worth settling early: it needs a power circuit and it needs air, which makes it a drawing decision rather than a leftover-closet decision. An attic or an unconditioned garage causes problems in a Georgia summer. Everything else we can walk and mark ourselves, and we will come back with a drop schedule you can hand to the client or drop into a bid.
03
What happens if we call you after the drywall is up?
We still do the work — a finished house is not a lost cause, and retrofit is a normal part of what we do. But be clear with the owner about what it costs. It becomes fishing walls, cutting access holes, patching and painting afterward, and working around insulation, fire blocking and everything the other trades already put in that path. Some runs stop being practical at all: through a slab, up a stacked exterior wall, or across a framed soffit with no route through it. The scope goes up, the achievable drop count goes down, and somebody has to pay for the patching. None of that is true while the walls are open.
04
Who takes the call when the WiFi does not reach the bonus room?
We do, when the house was wired and handed over properly, because our contact details are on the packet the owner keeps. That is most of the reason to document it. The version where this goes wrong is a house with a consumer mesh kit and no paperwork — there is nobody obvious to call, so the owner calls the builder, and a coverage complaint turns into a warranty conversation about a house that is otherwise finished. Coverage is a cabling decision, and it gets made months before anybody thinks about WiFi. Getting the ceiling positions right at rough-in is what keeps that call from happening at all.
05
Where we work
Based in Bremen.On your side of I-20.
Bremen, GA 30110. Close enough to the West Georgia build sites to get to a rough-in without a mobilization conversation, and close enough to I-20 to reach the metro jobs.
Send the plan set. We will mark the drops, the ceiling positions, the sleeves and the equipment location, and come back with a drop schedule you can put in front of your client or drop into a bid. You keep the marked-up plan whether or not you use us — and if the board is already up, we will tell you plainly what is still reachable and what it will cost in patching.