Cable Concealment & Wire Hiding in Katy & Houston, TX

Wire hiding done right — invisible, and safe inside the wall

A wall-mounted TV, a projector on the ceiling, surround speakers, a run of network drops — the technology looks effortless right up until you see the cords dangling down the wall or snaking across the baseboard. Cable concealment is the craft of making that wiring disappear: cleanly, permanently, and without creating a hazard inside your wall. EVOTECH IT LLC hides cables for homes and businesses across Katy, Houston, Sugar Land, Richmond, Fulshear and Cypress — from a single HDMI-and-power run behind a living-room TV to hundreds of feet of concealed cabling through a finished two-story home or an occupied office.

We are a licensed and insured low-voltage contractor with more than 20 years of hands-on experience and a 5.0-star rating. Hiding a wire sounds simple, and done wrong it is genuinely dangerous — buried power cords, non-rated cable sealed in a wall cavity, and unpatched holes through a fire-rated garage wall are exactly the shortcuts that turn a tidy job into a code violation or a fire risk. We do the invisible part correctly, so the result is not just good-looking but safe and to code.

Below is a straight, no-jargon guide to how wires actually get hidden, which cable is legal to bury and which isn’t, how fire-rated walls change the job, and exactly what a professional concealment includes — so you can make a confident decision whether you hire us or not.

The three honest ways to hide a wire (and when each is right)

Every cable-hiding job comes down to choosing a method for each run. The right one depends on your wall, whether the cable carries signal or power, and how invasive you are willing to be. Here are the options we actually use, honestly compared.

In-wall concealment (the invisible finish)

We open two small, tidy points in the drywall — one behind the TV or device, one lower behind the equipment — install low-voltage ‘old-work’ brackets, and fish the cable down through the hollow wall cavity so it vanishes completely. This is the cleanest possible result: nothing shows. It requires a wall you can open and a clear cavity, and the cable inside must be in-wall rated.

Paintable raceway (surface channel)

A slim channel that mounts on the wall surface and swallows the cables inside it, then gets painted to match so it nearly disappears. This is the correct, code-safe answer when the wall can’t be opened — solid brick, tile, stone, plaster-and-lath, concrete, or any rental you are not allowed to cut. It is faster and less invasive than in-wall work and still eliminates the dangling-cord look.

Surface cord cover and floor management

For a short exposed stretch — a cord dropping to a desk, a run along the bottom of a wall, or a cable that must cross a floor or doorway — a low-profile cord cover or floor cord protector keeps it tidy and, on floors, safe to walk over. It is the least invasive option and the right call for temporary or rented spaces.

Hidden power (a separate rule)

Signal cables can go in the wall; a standard power cord cannot. Getting power behind a mounted TV without a visible cord is its own method — a listed in-wall power relocation kit or a recessed receptacle — covered in its own section below.

Our default for an owned home with standard walls is in-wall concealment for the signal cables plus a listed power solution — it looks factory-clean and there is nothing on the wall. We reach for raceway the moment a wall can’t or shouldn’t be opened, and we tell you which method fits each run before we start.

How we fish a cable inside a finished wall

Fishing a cable through a finished wall is the part that looks like magic and is really just method, patience and knowing what is inside the wall. Here is how we actually do it — and how we avoid the pipes, wires and fireblocks you can’t see.

First, we read the wall

Before any hole, we map the cavity: a stud finder locates the studs and any horizontal blocking, and we check for electrical, plumbing and HVAC in the path. Cutting blind is how DIY concealment hits a water line or a live wire. We choose an entry and exit that share one clear, open stud bay.

Old-work brackets, not just holes

At each opening we install a low-voltage ‘old-work’ mounting bracket — a mud ring — and a brush-style wall plate. Low-voltage signal cable does not need an electrical box, but it does need a finished, protected opening; the brush plate lets the cable pass through while closing up the hole neatly.

The fish

We drop a fiberglass glow rod or a weighted fish tape down the cavity from the top opening and retrieve it at the bottom, then pull the cable through. For runs that cross a wall’s top plate into an attic, or drop from a ceiling, we use a flexible drill bit to guide the cable through the framing. Getting past a mid-wall fireblock is done with a small, sealed, purpose-made pass — not brute force.

Slack, dressing and the patch

We leave a service loop of extra cable at each end so a device can be pulled out or a cable swapped later without re-fishing the wall. Cables are kept away from electrical lines and crossed at right angles to them to avoid interference, and bends are kept gentle — a kinked HDMI or network cable is a dead cable. Finally, any opening we made that is not covered by a plate is patched cleanly and left ready for paint.

In-wall-rated cable: what is legal to bury and what isn’t

Here is the single most important safety fact in wire hiding, and the one most DIY jobs get wrong: the cable inside a wall has to be rated to be there. The flexible cable that came in the box with your TV or soundbar usually is not. Fire-rated, in-wall cable is jacketed to resist flame spread and give off less toxic smoke, and code requires it for anything concealed in a building’s structure.

What the ratings mean

Low-voltage cable carries a jacket rating that tells you where it is legal to install. In plain terms: general-purpose in-wall cable (CM, or CL2/CL3 for speaker and control wiring) is fine inside a normal wall; riser-rated cable (CMR) is for vertical runs between floors; and plenum-rated cable (CMP) is required in air-handling spaces such as the gap above a drop ceiling that is used to move return air. Outdoor and in-the-box cables generally are not rated to be sealed inside a finished wall.

We supply and install the correct rated cable for every concealed run, and if you want us to hide a cable you already own we first check that it is legal to bury — and tell you honestly if it isn’t. Using the right jacket is not a preference; it is fire code, and it is what keeps a hidden cable from becoming a hidden hazard. It also protects performance: real in-wall cable on network runs holds its rated speed where bargain cable quietly fails.

Fire-rated walls, firestopping and safe pass-throughs

Some walls in your home, and nearly every wall in a commercial building, are doing a second job: containing a fire long enough for people to get out. The moment a cable pokes a hole through one of those fire-rated assemblies, that hole has to be sealed back up — firestopped — or the wall no longer does its job. This is the part of cable hiding that separates a licensed contractor from a handyman.

Which walls are fire-rated

The most common one in a house is the wall and ceiling between an attached garage and the living space — it is a designed fire and gas barrier, and an open cable hole through it is a real hazard. Others include the floor-and-ceiling assemblies between stories, and in commercial buildings the corridor walls, demising walls between tenants, stairwell and shaft walls, and any plenum barrier.

How a pass-through is done correctly

When a cable must cross a fire-rated wall, we restore the rating with a listed firestop system: intumescent firestop putty or sealant packed around the cable, a firestop collar, or a purpose-built fire-rated pass-through sleeve that reseals around the cable — some even self-seal if the cable is later removed. The result is a penetration that keeps the wall’s fire rating instead of punching a hole in it.

Fireblocks and plenums

Inside ordinary wood-frame walls there are also fireblocks — horizontal barriers in the stud cavity that slow a fire from racing up the wall. When a run has to pass one, we do it with a small, sealed pass, not by knocking a gap in it. And above a drop ceiling that carries return air (a plenum), the cable must be plenum-rated and routed without obstructing the space. We treat all of this as part of the job, not an afterthought — because a hidden cable is only clean if it is also safe.

Hiding the power legally: why a power cord can’t go in the wall

This is the rule that surprises most homeowners and the one we will not bend: a standard power cord cannot be run inside a wall. The flexible cord on your TV, and ordinary extension cords, are not rated as permanent in-wall wiring — the National Electrical Code prohibits using them as a substitute for fixed wiring or running them through walls, because a cord that overheats inside a sealed cavity is a fire waiting to happen. Every ‘just hide the power cord in the wall’ shortcut you will see online is a code violation.

The right way to hide power

There are two legal, clean ways to get power behind a mounted TV with no cord showing:

• A listed in-wall power relocation kit. A purpose-built, UL-listed system: a receptacle behind the TV connected to your existing wall outlet through an approved in-wall cable, so power reaches the screen legally — not an extension cord stuffed in the drywall. It gives you the hidden-power look without a new circuit.
• A recessed receptacle. Where there is already an outlet on the wall, a recessed box lets the TV’s plug sit flush inside the wall so the panel hangs tight to the surface.

Where we stop and an electrician starts

If there is no outlet on the wall at all, or you want a brand-new dedicated circuit, that is line-voltage electrical work. As a low-voltage contractor we do not pretend otherwise — we coordinate a licensed electrician for the new circuit and handle the mount, the signal cabling and the concealment, so you get one clean result with no code corners cut. It is the same honest boundary we hold on every TV mounting job.

Paintable raceway and cord covers: the clean fix when the wall can’t be opened

When a wall can’t be opened, raceway is not a compromise — it is the correct tool, and a well-installed, painted raceway is remarkably discreet. Raceway covers a family of surface channels, and choosing the right one matters — especially the difference between low-voltage-only channels and those listed to carry a power cord.

Paintable surface raceway

The workhorse: a slim PVC channel with a snap-on cover that mounts flat to the wall and gets painted the wall’s color so it reads as part of the trim. Ideal for the signal cables running up to a TV on a brick or plaster wall. Different profiles hold anything from a single HDMI to a full bundle.

Metal (commercial) raceway

Heavier-duty metallic surface raceway is used in commercial spaces and anywhere a durable, listed pathway is needed — including certain products rated to carry line-voltage power, which paintable low-voltage channel is not.

Baseboard, corner and floor channel

Along the floor line we can run a baseboard-style raceway that mimics trim; up an outside corner, a corner duct; and across a floor or doorway, a low-profile floor cord protector that is safe to step on and helps meet walkway and accessibility requirements in offices.

We paint raceway to match your wall so it disappears into the room, and we plan the route to follow natural lines — trim, corners, the edge of a mantel — rather than cutting straight across an open field of wall. Done this way, raceway on a home theater or fireplace wall looks intentional, not like an afterthought.

Concealment by scenario: TV, theater, speakers, network and office

Where wires need hiding shapes how we hide them. These are the jobs we are asked for most, and how concealment differs for each.

Behind a wall-mounted TV

The classic: an HDMI run, and often network and power, behind a flat panel. We fish the signal cables in-wall and add a listed power solution, or raceway the lot on masonry. This pairs naturally with our TV mounting and soundbar mounting work, where the connecting cables are hidden as part of the install.

Projector and home theater

A ceiling projector needs a long HDMI, and power, run from the equipment to the middle of the room — usually up a wall and across the ceiling. It is one of the trickiest concealment jobs, and one we plan into every home theater installation.

Speaker wire

In-wall and in-ceiling speakers only look clean when the wire is invisible. We run CL-rated speaker cable through walls and ceilings to each location — part of any whole-home audio project.

Network and data

Data drops belong in the wall from the start. When we are concealing cabling for computers, Wi-Fi access points or cameras, it ties into proper structured cabling so the runs are hidden and certified rather than improvised.

Desks, offices and floor crossings

At a desk or in a conference room, cables drop cleanly to the work surface, and any run that has to cross a walkway goes in a floor protector — tidy and safe underfoot.

What a professional EVOTECH cable-concealment job includes

Hiding the wires should mean a finished, safe, tested result — not a channel slapped on the wall. Every EVOTECH cable-concealment job includes:

• An on-site plan. We look at each run, the wall type and the cable path, and tell you which method — in-wall or raceway — fits before we quote.
• Correct, rated cable. In-wall-rated (CL2/CL3 or CM) signal cable for anything concealed, in the right jacket for the space, supplied and installed.
• Clean in-wall fishing. Tidy openings, low-voltage brackets and brush plates, a fished run with a proper service loop, and gentle bends that protect the cable.
• Painted raceway where needed. Slim channel routed along natural lines and painted to match, when a wall can’t be opened.
• Legal hidden power. A listed in-wall power kit or recessed receptacle, with a licensed electrician coordinated if a new circuit is required.
• Firestopped penetrations. Every hole through a fire-rated wall or fireblock sealed with a listed firestop system.
• Patch and clean-up. Openings we made are patched, the area is left clean, and we test that every hidden cable actually works before we go.

Our cable-concealment process, step by step

1. Free on-site estimate. We look at the walls, the devices and the runs, then give you a clear written scope and itemized quote. No pressure and no invented numbers.
2. Confirm the method per run. We agree which cables go in-wall, which go in raceway, and how power will be handled — before any drilling.
3. Protect the space. Furniture and floors are covered before we open a wall or drill.
4. Locate and open. We map studs, blocking, electrical and plumbing, then make clean, minimal openings only where the cavity is clear.
5. Fish, run and firestop. Cables are fished with rated cable and a service loop, raceway is mounted where needed, and every fire-rated penetration is sealed.
6. Handle power correctly. A listed in-wall kit or recessed outlet goes in, with an electrician coordinated for any new circuit.
7. Test, patch and walk through. We confirm every hidden cable works, patch and leave-ready any openings, dress the raceway, and show you the finished result. We are local, so a later tweak is a call away at (832) 359-2425.

Residential vs. commercial cable concealment across Katy & Houston

Hiding a cable in a family living room and hiding hundreds in an occupied office share the same principles but solve different problems.

Homes

The priority is the finished look — no cords on the wall behind the TV, invisible speaker wire, clean runs that respect the room — plus safe firestopping around the brick fireplaces, plaster walls and attached garages common in Katy, Sugar Land, Fulshear and Cypress homes. Most residential concealment is in-wall where the walls allow and painted raceway on the masonry that does not.

Businesses

Commercial concealment adds scale and code: cable trays and conduit above ceilings, floor boxes and poke-throughs to bring cabling up in the middle of a room, plenum-rated cable in return-air ceilings, listed firestopping through every rated wall, and floor cord protection that meets walkway and accessibility requirements. It often rides on the same designed backbone as our structured cabling work, and we install around your operating hours so we do not disrupt business.

Wire-hiding mistakes that cause a callback (or a fire risk)

Almost every wire-hiding job that goes wrong fails for one of these reasons. Knowing them helps you judge any installer — including us.

1. Burying a power cord in the wall. The most common and most dangerous shortcut. A flexible cord is not rated for inside a wall; we use a listed power kit or a proper receptacle instead.
2. Concealing non-rated cable. The HDMI or speaker wire from the box usually is not in-wall rated. Sealing it in a wall is a fire-code violation; we install CL2/CL3 or CM-rated cable.
3. Leaving a fire-rated hole open. A cable punched through a garage wall or between floors without firestopping defeats the wall. We seal every rated penetration.
4. No service loop. Pulling a hidden cable drum-tight means the whole wall has to be reopened to change it later. We leave slack at both ends.
5. Kinking the cable. A sharp bend or a cable yanked around a stud corner can kill an HDMI or network run. We keep bends gentle and within the correct radius.
6. Drilling blind. Cutting into a wall without mapping it hits pipes, wires and studs. We read the cavity before we open it.
7. Unpainted raceway. A bare white channel on a colored wall shouts add-on. We paint raceway to match so it disappears.

What affects the cost of hiding your wires

Every wall and every run is different, so we give a real quote after a free on-site look rather than a fake per-cable number. The honest drivers of cost are:

• In-wall vs raceway. Fishing cable inside a finished wall is more involved than surface raceway, which is more than a simple cord cover.
• Number and length of runs. More cables, and longer or two-story runs, take more material and labor.
• Wall type. Drywall over studs is straightforward; brick, tile, stone, plaster and concrete take special tools and usually mean raceway.
• Power work. A listed in-wall power kit or recessed outlet adds a bit; a brand-new circuit means coordinating a licensed electrician.
• Fire-rated penetrations. Listed firestopping through rated walls, floors and plenums adds materials and time — and it is not optional.
• Patching and paint. Whether openings need patching, or a raceway needs painting to match your wall.

Our estimate is itemized so you can see exactly what each part costs and adjust the scope to your budget. The on-site estimate fee, when one applies, is credited toward your project. To get real numbers for your home or office, request a free on-site estimate or call (832) 359-2425.

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