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Electric Strike Installation in Houston, TX 77019
Two completely different jobs share this ZIP code: a heavy original door in a 1930s River Oaks house, where the cut into the jamb is permanent and the millwork cannot be replaced, and a suite on a high floor above Allen Parkway, where the building engineer and a fire-rated corridor door decide most of the design before we touch anything.
A 1930s front door and a fourteenth-floor suite are not the same project
Most of 77019 splits cleanly in two, and the correct hardware for one side is the wrong hardware for the other.
On the residential side, the original houses of River Oaks were built for a different era of door: thick solid stock, deep rails, heavy brass furniture, mortise locksets rather than the cylindrical ones every modern strike catalogue assumes. Much of the housing stock has been rebuilt since 2000, so a single street can hold a 1935 original next to a 2021 custom build, and the two need different approaches at the same address.
On the commercial side, the towers along Allen Parkway and the professional suites around West Gray, Kirby and Shepherd operate under building rules that outrank our preferences: approved-vendor lists, certificates of insurance, freight elevator windows, restricted work hours, and a fire alarm system that no low-voltage contractor touches without the engineer in the room.
We establish which job you have before pricing anything, because the estimate, the lead time and the permissions differ in every respect.
What a mortise lockset changes about the parts list
A mortise lock is a rectangular steel case let into the edge of the door. Unlike the cylindrical locks on newer houses, it typically carries a spring latch and a separate deadbolt inside one body, both landing in the same strike.
That matters twice over. First, the strike has to be a model made for a mortise lock, with the correct keeper geometry and, where the deadbolt is retained, a cut-out for the bolt to land in. A strike made for a cylindrical latch will not accept the bolt at all. Second, the strike only ever releases the latch. If someone throws the deadbolt, the door is locked to every credential in the system until a person turns the thumbturn. On a house with staff arriving before the family is up, that single fact causes more frustration than everything else combined.
Where the original lock is beautiful and irreplaceable, we would rather work around it than replace it — and if the deadbolt must stay live, we say so and design the rest of the entry around that limitation instead of pretending it away.
The cut you cannot take back, and what we try first
A strike pocket is machined into the frame. On a builder jamb that is a trivial repair. On a 1930s River Oaks opening with original casing, a quartersawn jamb and a lip strike that matches the rest of the house, it is permanent — there is no replacement part to buy.
There is a second problem specific to older construction here. Many of these frames are set tight against masonry or a solid stucco assembly, so there is no shim void behind the jamb for a strike body to occupy. On those openings a conventional cut simply has nowhere to go.
So we work down a ladder, and we start at the top:
- Put the credential on a secondary opening — the service door, the garage entry, the motor-court walk gate — which is very often the door people actually use.
- Use an electrified lock that retrofits into the existing door preparation, leaving the frame untouched.
- Fit a surface-applied strike with a matching surface latch where appearance permits.
- Machine the frame, only once the first three have been genuinely ruled out.
In a high-rise, the corridor door is a fire door and that settles it
Suite entrance doors off a common corridor, and every door into a stair enclosure, are part of a rated assembly. The rating exists because the latch holds the leaf in the frame while it distorts under heat. So the opening has to stay positively latched, which means a fail-secure strike carrying the correct listing for fire doors — never a fail-safe device that opens when power drops.
Stair doors carry a second layer: re-entry requirements mean the building has a designed scheme for which floors can be re-entered and how those doors behave during an alarm. That scheme belongs to the building, not to your tenancy, and modifying it is an engineer-and-fire-marshal conversation before it is a hardware conversation.
The practical consequence for a tenant is simple. Inside your demised space you generally have latitude. At the corridor line you have a rated opening and a landlord, and we will tell you plainly when what you are asking for is not something any contractor should agree to do.
Why the same strike behaves differently twenty floors up
Here is a failure we see in towers more than anywhere else: a strike that worked perfectly at handover begins refusing to release, usually in certain weather, usually on higher floors.
The cause is pressure. A tall building behaves like a chimney, with air moving up or down the core depending on the temperature difference outside, and stairwells and corridors sit at measurably different pressures from the spaces beside them. That pressure pushes the door against its frame and loads the latch into the keeper. A strike jaw has to swing against that load, and most strikes are not built to. The result is a buzz with no release, or a release only after somebody leans on the door.
The fixes are unglamorous and effective: a strike rated to release under preload, a closer adjusted so it is not over-latching, a leaf brought back into square, and a door-to-frame gap confirmed inside the manufacturer’s range rather than whatever it drifted to. We check this on site rather than discovering it after the invoice.
The building engineer designs half this job before we arrive
In a managed building, the order of operations is fixed and ignoring it costs you weeks.
- Certificate of insurance naming the ownership entity and manager exactly as they require it. We carry insurance and issue these routinely.
- Work hours. Anything noisy, anything in a corridor, and anything involving a propped fire door is usually evenings or weekends.
- Freight elevator and dock booked in advance, with corridor protection laid.
- No core drilling in many older towers. That is not an obstacle so much as a design input: the route goes overhead or through an existing sleeve, and we price it that way from the start.
- Plenum-rated cable wherever the ceiling cavity is a return-air path.
- Fire alarm interfaces performed by the building’s alarm contractor, not by us.
We would rather spend an hour with the property manager than hand you a change order later.
Getting cable through plaster, lath and a crawl space
The wire is usually the hard part of a period installation, not the strike. Walls in the oldest houses here are plaster over wood lath, which does not tolerate fishing the way drywall does, and there is rarely a vertical chase near a front entry.
What helps is that many original River Oaks houses sit on pier-and-beam with a crawl space underneath. That underfloor route is frequently the kindest path in the whole property: down the wall cavity beside the frame, across underneath, and up at the equipment location, with no visible patching at all. Where a house has been rebuilt on slab, the route goes up into the attic instead, and the decision is made by where the nearest accessible cavity is rather than by what is shortest on paper.
Exterior runs to a motor-court gate or a garage apartment get direct-burial-rated cable in conduit, kept clear of irrigation lines and root plates, and we photograph the trench before it is closed so the next contractor is not guessing.
Five ways a 77019 strike job goes sideways
- A strike specified from a photograph. The lock must be identified by case, backset and latch type, in person. A period mortise lock is not something to guess at from a phone picture.
- A deadbolt left live with nobody told. The system works flawlessly until the first person locks up properly at night.
- A fail-safe device on a rated corridor door. It will pass a functional test and fail the moment it is inspected, and it is a genuine life-safety defect in the meantime.
- Ignoring building pressure. Diagnosed as a faulty strike, replaced twice, still failing, because nothing electrical was ever the problem.
- Visible hardware nobody cleared. Deed restrictions and architectural review govern what shows from the street here, and a reader on the wrong face of a gate post is an argument you do not need.
What actually changes a River Oaks estimate
We never quote this work sight unseen. The variables that move a 77019 number are:
- Whether the opening takes a standard cut or needs a mortise-specific or surface-applied solution.
- Whether there is a void behind the jamb, or masonry.
- Whether the door is rated, and whether it is a demised door or a base-building one.
- Building access: insurance paperwork, elevator bookings, restricted hours, escort requirements.
- The cable route — crawl space, attic, existing sleeve, or an exterior run to a gate.
- Whether the existing closer and hinges need correcting before any electronics are worth fitting.
- Whether the result has to match existing brass or bronze hardware.
The quote is itemised, with hardware named by model, so you can compare it honestly with anyone else’s.
Related services
Frequently asked questions
Our front door is original to the house. Is there a way to do this without cutting the frame?
Often yes. An electrified lock that drops into the door’s existing preparation leaves the frame untouched, and a surface-applied strike and latch is fully reversible. We also frequently recommend controlling the service door or the motor-court gate instead, since that is the opening staff and deliveries actually use. Machining an original jamb is our last option, not our first.
Can you make the lobby or corridor door of our building work with our fobs?
Not on our own. Anything at the corridor or lobby line is base-building property and usually part of a rated assembly, so it goes through the property manager and the building engineer first. What we can normally do quickly is your suite door, and integrate it so your staff carry one credential even if the building issues its own for the lobby.
The fob stops working some mornings and there is no pattern to it. What causes that?
Two usual suspects. One is a deadbolt thrown by whoever locked up, which no strike can release. The other is pressure loading the latch, which is common on higher floors and varies with outside temperature and wind, so it looks random. Both are diagnosable in a single visit, and neither is fixed by replacing the strike.
The building wants a certificate of insurance and an approved vendor form. Is that a problem?
No. EVOTECH IT LLC is a licensed and insured low-voltage contractor and we produce those documents as a matter of routine. Send us the management company’s requirements with the suite number and we will have the paperwork on file before the first site visit, which usually saves a week.
Would a magnetic lock be simpler than all of this?
Simpler to mount, considerably more complicated to make legal. A magnet actually holds the door shut, so it needs an engineered release scheme and it must drop on fire alarm and on power loss. A strike never obstructs egress, because the inside lever always retracts the latch by hand. On most doors in this ZIP the strike is the more appropriate device.
Free on-site assessment in River Oaks and 77019
Tell us the address, the door and whether the building has a manager, and we will come out, identify the lock properly, confirm what the frame can take and quote it in writing. Call (832) 359-2425.
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