Electric Door Strike Wiring in Houston, TX 77019

What an electric strike actually changes about your door

An electric strike is not a lock. It replaces the fixed plate in the door jamb — the part the latch drops into — with a hinged keeper that swings out of the way on command. Your existing latch, lever and key keep working exactly as they do now.

That decides where the wire goes. All the electrical work lives in the frame. Nothing crosses the moving leaf, so there is no electric hinge and no armoured door loop flexing ten thousand times a year until a conductor breaks inside its jacket. On a heavy custom entry that is the deciding argument: remote release, original lockset untouched.

What a strike will not do is retract a deadbolt. It only holds or releases a spring latch. If your door is secured at night by a thrown bolt, that bolt still has to be turned by hand or by a separate motorised lock — different hardware, different line on the estimate.

The wood doors that make 77019 a different job

Between Shepherd, Allen Parkway, Bissonnet and Montrose Boulevard the stock runs from 1920s bungalows on the Montrose streets to the large 1930s houses inside River Oaks, with mid-rise condominiums along Allen Parkway and West Gray and small professional offices in converted houses near Kirby. On the residential side the original front doors are still hanging, and they are wood.

A commercial hollow metal frame arrives from the factory with a strike pocket already punched, square and to a known depth. A 1930s jamb does not. It is solid stock, often old growth and genuinely hard, usually shimmed out to a brick or stucco opening, and behind it there may be nothing but mortar and eighty years of dust. Cutting the pocket ends with a chisel, and the depth has to be right the first time, because a jamb cannot be un-cut.

Two checks before ordering. Leaf thickness and lockset — some of these are two-and-a-quarter-inch doors carrying a mortise lock, whose latch is larger than a modern knob set’s, so the keeper must match. And whether somebody already cut this jamb once, which narrows the bodies that can cover the damage.

Pedestrian gates, courtyard entries and the walk-up at the street

A large share of the strike work here is not on a house door at all. It is the pedestrian gate beside the driveway gate, the courtyard gate on a garden home, or the gate at the head of a private drive. There is no jamb to cut, so the hardware is a different family: a surface-mounted strike bolted to a welded gate box on the fixed post, keeper presented to the gate leaf.

Cable never goes onto the swinging leaf. It terminates at the post — a hollow steel section that can be fished, or a masonry one needing a conduit path along the fence line. If a driveway sits between gate and house, that is a bore under the slab, and it belongs on the quote rather than turning up on install day.

Outdoors changes the strike itself. Gate hardware here sits in wind-driven rain for hours and then bakes through August, so we specify weather-rated bodies with a stainless faceplate and a drainage path. Water standing in an undrained pocket corrodes the solenoid, and that failure surfaces about a year later, long after anyone connects it to the installation.

Fail-secure or fail-safe, decided at your opening

Every strike is one of two things, and the choice is engineering rather than preference.

The second line to read is duty rating. A strike sold for intermittent duty is built to be energised a second or two at a time. Hold it energised continuously — exactly what fail-safe does — and the coil cooks. Continuous-duty bodies exist for that and cost more. Mismatching the pair is the most common reason a strike dies inside its first year.

Getting low-voltage power to a front door frame

In a 1920s Montrose house on pier and beam, the best route to the front jamb is almost always from underneath: work the crawl space, come up inside the wall cavity beside the opening, enter the frame on the hinge side. No ceiling is opened and nothing is fished blind through plaster and lath.

In a River Oaks house on slab with a flat, built-out porch roof there is often no attic volume over the entry at all, so the route goes sideways — nearest workable ceiling cavity, along the top plate, drop into the opening. This varies more between two houses on the same block than anything else in the job, and it is why strike wiring is not quoted over the phone.

Conductor size matters more than people expect. A twelve-volt strike drawing a few hundred milliamps releases happily on ten feet of thin wire and refuses on a hundred feet of it, because the voltage reaching the coil has sagged below what the solenoid needs. The symptom is a buzz with no release; the cure is gauge, not a bigger supply. We also keep the strike off the intercom’s rail — firing an inductive load dips the voltage, and a shared reader reboots every time somebody is let in.

Deed restrictions, historic streets and condominium management

77019 carries more private rule-making than most of Houston. River Oaks operates under long-standing deed restrictions, several Montrose streets sit inside designated historic districts where exterior alterations can require review before work begins, and the Allen Parkway and West Gray buildings each have their own management and contractor requirements.

The strike is rarely what draws attention — it lives inside the frame and is invisible from the street once the faceplate is on. What gets noticed is everything around it: a keypad on an exterior wall, a new pedestal at a gate, surface conduit along a fence. Raise those with your association before we schedule. In a condominium we handle management approval and insurance paperwork up front: slower start, faster finish.

What happens on the EVOTECH visit

1. Measure the opening as it is today. Gap between door and jamb, whether the latch seats fully, whether the leaf has moved with the season. A door that does not close square now will not release reliably later.
2. Identify the lockset. Cylindrical latch, mortise lock, or a deadbolt no strike can operate. This one answer eliminates most of the catalogue.
3. Feel for preload. Closed and latched, a closer or compressed weatherstripping pushes the latch hard against the keeper. A body not rated for that preload refuses under load and works perfectly when you test it with the door held loose.
4. Walk the wire route physically and measure the real run length instead of estimating it.
5. Agree fail-secure or fail-safe and write it down, along with what this opening does during a power failure.
6. Itemised written quote: hardware, cable, supply and backup, any bore or carpentry, patch and paint, and what is not included.

Install day finishes with the door tested closed, latched and under its normal closing pressure — not held open by hand.

What moves the price on a strike retrofit

• What the frame is made of. Hollow metal with existing prep is the least work; a hardwood jamb is partly a carpentry job and it shows in the hours.
• Whether the existing lockset can stay. A deadbolt-only door grows the scope into lock replacement.
• Indoor or exposed. Weather-rated gate hardware, stainless faceplates and drainage detail cost more than an interior body.
• Route difficulty and run length. A crawl space with clearance is cheap; a bore under a driveway is not.
• Power. Whether a usable supply is nearby, and whether you want battery backup so the opening still works through an outage.
• Openings and integration. How many, and whether they join an existing access system or a new controller.
• Finish work. Filler and paint match on a painted historic jamb is real labour.

No dollar figure goes on strike work over the phone, because that would be guessing at the jamb. The on-site estimate is free and the quote that follows is itemised.

Five reasons we get called to somebody else’s strike

1. Conductor too thin for the run. Fine on the bench, sags at the door: buzzes, will not release.
2. No suppression across the coil. The inductive kick each time it drops out eventually pits or welds the controller’s relay contact, and the fault looks like a dying panel.
3. Intermittent-duty body held energised. Warm strike, then a dead one, usually within months.
4. Strike on a door secured by a deadbolt. The latch releases, the door stays shut, and nobody finds out until it matters.
5. Nobody checked alignment or preload. The most common and least visible: it tests fine on install day and fails in August when the leaf has moved a sixteenth of an inch.

All five are avoidable at survey, which is where we spend the time.

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