Nassau County SERVICE AREA

Duncan Estates access control, intercom, CCTV and door service

770 Doors & Windows serves requests around Duncan Estates in the Hempstead / Uniondale / West Hempstead area for door repair, door installation, building entry systems, commercial doors, smart locks, intercoms and cameras. Send the property ZIP, photos and a short description of what stopped working.

Call for a Free Estimate or Schedule a Technician

Tell us your location and the service you need. Call to discuss a quote or arrange a technician visit.

Hempstead / Uniondale / West HempsteadNassau CountyCall (347) 541-4824

Services for Duncan Estates

Request service for your home, building entrance or storefront. Availability depends on the exact address, access, parts and approved scope.

Door repair in Duncan Estates

Door repair for residential, apartment-building and commercial openings. 770 Doors & Windows can review photos of sagging doors, doors that will not latch, broken closers, damaged frames, hinge problems and lock alignment before scheduling service in Duncan Estates.

Door installation in Duncan Estates

Door installation and replacement for entry doors, apartment doors, commercial doors, storefront entrances and hardware-connected openings. Send the property ZIP, measurements if available and photos of the existing opening for service planning in Duncan Estates.

Access control in Duncan Estates

Card readers, keypads, fobs, electric strikes, magnetic locks and managed entry credentials. 770 Doors & Windows can review photos, the property ZIP and the affected entrance before scheduling service in Duncan Estates.

Intercom service in Duncan Estates

Audio intercoms, video intercoms, apartment buzzers, mobile entry and door release. 770 Doors & Windows can review photos, the property ZIP and the affected entrance before scheduling service in Duncan Estates.

Security cameras in Duncan Estates

Cctv cameras, recorder setup, phone viewing, entry cameras and package-area coverage. 770 Doors & Windows can review photos, the property ZIP and the affected entrance before scheduling service in Duncan Estates.

Commercial door hardware in Duncan Estates

Closers, pivots, frames, panic bars, storefront doors and entrance hardware. 770 Doors & Windows can review photos, the property ZIP and the affected entrance before scheduling service in Duncan Estates.

Smart locks in Duncan Estates

Keypad locks, connected locks, user codes and door alignment. 770 Doors & Windows can review photos, the property ZIP and the affected entrance before scheduling service in Duncan Estates.

Repair, installation and replacement in Duncan Estates

Choose the service you need to see what a technician can review and which details help prepare your estimate.

Door repair

Commercial door repair

Request commercial door repair for a storefront, office entrance or shared building door that drags, sticks or will not latch. Describe whether the trouble began suddenly or developed over time. Photos of the hinges, frame, lock and closer help identify which components need inspection. The repair scope depends on the condition of the complete opening, so include a full view as well as close-ups.

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Residential door repair

Arrange residential door repair for an entry or apartment door with loose hinges, an uneven gap or a latch that misses the strike. Tell us whether the door closes normally before it is locked and whether rubbing changes with the weather. A technician can assess alignment, hardware and frame condition to determine whether adjustment, component replacement or a replacement door is appropriate.

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Door installation and replacement

Entry door installation

Request an estimate for entry door installation or replacement with photos of the existing door, frame and threshold. Include approximate opening dimensions and the direction the door swings. Tell us whether you want to keep the existing lock or add connected entry equipment. Door material, frame condition, finishing work and hardware compatibility all affect the proposed scope and installation price.

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Storefront door installation

Plan storefront door installation for a shop or commercial entrance by sharing full-width photos and the opening dimensions. Identify whether the entrance uses a single door, a pair of doors or surrounding glass panels. Let us know about existing access control, closers and exit hardware. These details help prepare a replacement plan that accounts for the entrance as a complete system.

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Access control installation and repair

Access control installation

Get an access control installation estimate for key fobs, card readers or a keypad entrance. Provide the number of doors, approximate number of users and whether managers need to change credentials remotely. Existing locks, available power and wiring routes affect equipment selection. Include plans for delivery access, employee schedules and visitor entry so the proposed system fits the way the property operates.

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Access control repair

Schedule access control repair when credentials stop working, a reader loses power or the door fails to release. Tell us whether the issue affects one credential, one entrance or the entire property. Photos of the reader and accessible equipment labels help identify the system. The visit can assess the reader, controller, power supply and connected lock to narrow down the cause.

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Intercom installation and repair

Intercom installation

Ask for an intercom installation or replacement estimate for an apartment building, house or business entrance. Share the unit count, entrance-panel photos and any visible equipment model. Tell us whether you need audio calling, video calling, phone-based answering or door release. Existing wiring and compatible door hardware influence the available options; these details help prepare an accurate scope before an installation is scheduled.

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Intercom repair

Book intercom repair for a buzzer that does not ring, one-way audio, a missing video image or an entrance that will not unlock. Explain whether the problem affects one apartment or every user. Include a photo of the entrance panel and indoor handset if present. Identifying the affected functions helps focus the inspection on the panel, unit equipment, wiring, power or door-release connection.

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Security camera installation and repair

Security camera installation

Request security camera installation for entrances, delivery areas or other property locations you need to monitor. Describe the coverage areas, desired recording storage and whether authorized users need phone viewing. Existing cabling, network equipment and mounting positions affect the design. Share property photos without passwords or private access codes so the camera layout and installation requirements can be discussed.

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CCTV camera repair

Arrange CCTV camera repair when a camera goes offline, recorded footage is unavailable or authorized phone viewing stops working. Tell us whether live video still appears at the recorder and whether one or all cameras are affected. Include the camera and recorder models when available. Power, cabling, network connections, storage and device settings may each need inspection before replacement equipment is selected.

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Commercial door hardware

Door closer repair

Schedule door closer repair or replacement for an entrance that slams, closes too slowly or fails to latch. Send a photo of the closer, its arm and the full doorway, and mention visible oil leakage or loose mounting points. The technician can assess the closer together with hinges, frame alignment and latch operation. A replacement must suit the door and how the entrance is used.

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Panic bar installation

Request an estimate for panic bar installation or replacement on a commercial exit door. Include photos from both sides, the door material, approximate dimensions and labels on the existing hardware. Mention any alarm or access-control connection. The proposed hardware needs to match the door and the required exit operation; a property-specific review is needed before selecting components or confirming the installation scope.

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Smart lock installation and repair

Smart lock installation

Get a smart lock installation estimate for a keypad or connected entry lock. Share the existing lock model if known, door thickness and photos of the lock preparation. Explain how you want to manage residents, employees or temporary users. Compatibility with the door and existing hardware, plus any network or hub requirements, should be checked before equipment is selected.

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Smart lock repair

Arrange smart lock repair when codes are rejected, the motor struggles or the lock stops responding in the app. Tell us whether the key or interior thumb turn still works smoothly and whether the problem started after a battery or network change. Door alignment and mechanical resistance can affect electronic operation. Include the make and model, but never send entry codes or account passwords.

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Call for a Free Estimate or Schedule a Technician

Have your address or ZIP, equipment model and photos ready. We will confirm availability and the proposed next step.

What to send before scheduling

Send the ZIP code, property type, full-view photos of the entrance or equipment, close-ups of labels or hardware, and whether one user, one door or the full building is affected.

Access control Intercoms Security cameras Commercial doors

Nearby local pages

Browse other local service areas.

Hempstead Country Club Estates Cooper Court Nostrand Gardens Cathedral Gardens Bayview Manhasset Park Norgate North Strathmore South Strathmore Strathmore Village Strathmore Vanderbilt Shorehaven Spinney Hill Terrace Manor Plandome Park Plandome Mills Circle Drive Gull’s Cove / Elm Sea Lane

Duncan Estates service questions

How do I confirm service at my address?

Call 770 Doors & Windows for a free estimate or to schedule a technician. Availability is confirmed for your address or ZIP.

Can you quote from photos?

Photos help us understand the visible condition, but final scope can depend on measurements, wiring, hidden damage, compatible parts and access.

Which entrance and security systems can you help with?

Door repair, door installation, access control, intercom repair or installation, CCTV cameras, smart locks, magnetic locks, electric strikes, closers and commercial door hardware.

Need service in Duncan Estates?

Call for a free estimate or to schedule a technician. Share your ZIP, photos and the service you need.

Call (347) 541-4824