About Marshall Alarm Systems Inc
Marshall Alarm Systems Inc is a family-owned security and fire alarm company based in Yorktown Heights, New York. Its work includes installing, servicing, and repairing fire and security alarm systems for residential and commercial settings. Services include video systems and access control among its offerings. The provider’s published material describes custom-designed fire, security, video, and access-control systems, along with monitoring and inspections. It states that the company works with both new and existing systems and represents multiple manufacturers.
Business description
We are a second generation, family owned and operated Security and Fire Alarm Company, Our company installs, services and repairs all fire and security alarm systems. We represent the following manufacturers: Honeywell, Ademco, Edwards Mirtone, Napco, Firelite, Silent Knight, System sensor, Northern computers and Keri access control.
Services
Explore the services below and confirm the scope of your project directly with the provider.
Fire alarm systems
Installation, servicing, and repair of fire alarm systems is available. Services include residential and commercial fire alarm systems, along with installation, monitoring, and inspections.
Security alarm systems
The company states that it installs, services, and repairs security alarm systems. Services include residential and commercial security systems and describes work with new and existing systems.
Access control
Access control appears among the provider’s system categories, and Keri access control is named among the represented manufacturers.
Alarm repair and maintenance
The business offers servicing and repairing fire and security alarm systems. Services include repair and maintenance and states that the company works with new and existing systems.
Planning a fire or security alarm project
Before requesting an alarm project, list the areas that need protection, the type of property, and whether the goal is intrusion detection, fire notification, or both. Note existing panels, sensors, wiring, cameras, or access equipment that may need to remain in place. A written inventory of current equipment and recurring issues can make a service discussion more precise. The provider states that it installs, services, and repairs fire and security alarm systems and works with new and existing systems.
Choosing surveillance and access features
For video surveillance, consider entrances, driveways, shared areas, lighting conditions, recording needs, and who should be able to view footage. For access control, identify doors or gates, user groups, and what should happen when credentials change. These are general planning considerations, not a promise about the provider’s process.
Questions to ask before scheduling work
Ask which parts of an existing system can be retained, what testing or inspection is included, how alerts or footage are handled, and what documentation will be provided after installation or repair. Confirm location coverage and equipment compatibility before arranging an appointment. The published material identifies installation, monitoring, inspections, and service across several named counties, but individual project details should be confirmed directly.
Business details
Services and specialties: State-of-the-art design and installations of security systems, engineered fire alarm systems, New video surveillance systems & access control systems. Central station monitoring, maintenance inspections drawings & submittals sprinkler supervision violations removed, we monitor Sprinkler Systems, closed circuit tv
Features: Free estimates, Emergency service, Warranties, Senior discount (10), Eco-friendly practices or credentials
Payment options: American Express, Check, Discover, MasterCard, Visa
Business hours
- Monday
- None
- Tuesday
- 8:00 AM - 5:00 PM
- Wednesday
- 8:00 AM - 5:00 PM
- Thursday
- 8:00 AM - 5:00 PM
- Friday
- 8:00 AM - 5:00 PM
- Saturday
- 8:00 AM - 5:00 PM
- Sunday
- None
Service area
Listed service coverage includes 562 ZIP codes across 302 communities.
View all towns and ZIP codes
- Holtsville, NY00501, 00544
- Botsford, CT06404
- Hawleyville, CT06440
- Stevenson, CT06491
- Stratford, CT06497
- Bridgeport, CT06601, 06602, 06650, 06673, 06699
- Danbury, CT06813, 06814, 06816, 06817
- Fairfield, CT06828
- Georgetown, CT06829
- Greenwich, CT06832, 06836
- Greens Farms, CT06838
- New Canaan, CT06842
- Norwalk, CT06852, 06856, 06857, 06858, 06859, 06860
- Redding Center, CT06875
- Redding Ridge, CT06876
- Ridgefield, CT06879
- Westport, CT06881, 06888, 06889
- Stamford, CT06901, 06904, 06910, 06911, 06912, 06913, 06914, 06920, 06921, 06922, 06925, 06926, 06927, 06928
- Caldwell, NJ07007
- Clifton, NJ07015
- East Orange, NJ07019
- Orange, NJ07051
- Plainfield, NJ07061
- Westfield, NJ07091
- Secaucus, NJ07096
- Jersey City, NJ07097, 07303, 07308, 07309, 07311, 07390, 07395, 07399
- Newark, NJ07101, 07175, 07182, 07184, 07188, 07189, 07191, 07192, 07193, 07194, 07195, 07197, 07198, 07199
- Elizabeth, NJ07207
- Mc Afee, NJ07428
- Ridgewood, NJ07451
- Wayne, NJ07474, 07477
- Mahwah, NJ07495, 07498
- Hawthorne, NJ07507
- Paterson, NJ07509, 07510, 07533, 07543, 07544
- Totowa, NJ07511
- Haledon, NJ07538
- Hackensack, NJ07602
- Paramus, NJ07653
- Teterboro, NJ07699
- Red Bank, NJ07709
- Adelphia, NJ07710
- Belmar, NJ07715
- Navesink, NJ07752
- Neptune, NJ07754
- Tennent, NJ07763
- Wickatunk, NJ07765
- Holmdel, NJ07777
- Eatontown, NJ07799
- Dover, NJ07802
- Allamuchy, NJ07820
- Buttzville, NJ07829
- Changewater, NJ07831
- Delaware, NJ07833
- Glasser, NJ07837
- Greendell, NJ07839
- Hibernia, NJ07842
- Hope, NJ07844
- Ironia, NJ07845
- Johnsonburg, NJ07846
- Middleville, NJ07855
- Schooleys Mountain, NJ07870
- Stillwater, NJ07875
- Swartswood, NJ07877
- Mount Tabor, NJ07878
- Tranquility, NJ07879
- Vienna, NJ07880
- Branchville, NJ07890
- Summit, NJ07902
- Brookside, NJ07926
- Liberty Corner, NJ07938
- Convent Station, NJ07961
- Morristown, NJ07962, 07963
- Mount Freedom, NJ07970
- Peapack, NJ07977
- Pluckemin, NJ07978
- Pottersville, NJ07979
- Whippany, NJ07983, 07999
- Barnegat Light, NJ08006
- Beach Haven, NJ08008
- Blawenburg, NJ08504
- Imlaystown, NJ08526
- Sergeantsville, NJ08557
- Cranbury, NJ08570
- Beachwood, NJ08722
- Island Heights, NJ08732
- Lavallette, NJ08735
- Mantoloking, NJ08738
- Normandy Beach, NJ08739
- Ocean Gate, NJ08740
- Pine Beach, NJ08741
- Seaside Heights, NJ08751
- Seaside Park, NJ08752
- Toms River, NJ08754, 08756
- Baptistown, NJ08803
- Broadway, NJ08808
- Edison, NJ08818, 08899
- Flagtown, NJ08821
- Little York, NJ08834
- Piscataway, NJ08855
- Oldwick, NJ08858
- Perth Amboy, NJ08862
- Quakertown, NJ08868
- Readington, NJ08870
- Sayreville, NJ08871
- Somerset, NJ08875
- Stanton, NJ08885
- Whitehouse, NJ08888
- Zarephath, NJ08890
- Raritan, NJ08896
- New Brunswick, NJ08903, 08905, 08906, 08922, 08933, 08988, 08989
- New York, NY10006, 10008, 10015, 10020, 10041, 10043, 10045, 10046, 10047, 10048, 10055, 10060, 10072, 10079, 10080, 10081, 10082, 10087, 10090, 10094, 10095, 10096, 10098, 10099, 10101, 10102, 10103, 10104, 10105, 10106, 10107, 10108, 10109, 10110, 10111, 10112, 10113, 10114, 10115, 10116, 10117, 10118, 10119, 10120, 10121, 10122, 10123, 10124, 10125, 10126, 10129, 10130, 10131, 10132, 10133, 10138, 10149, 10150, 10151, 10152, 10153, 10154, 10155, 10156, 10157, 10158, 10159, 10160, 10161, 10162, 10163, 10164, 10165, 10166, 10167, 10168, 10169, 10170, 10171, 10172, 10173, 10174, 10175, 10176, 10177, 10178, 10179, 10184, 10185, 10196, 10197, 10199, 10203, 10211, 10212, 10213, 10242, 10249, 10256, 10257, 10258, 10259, 10260, 10261, 10265, 10268, 10269, 10270, 10271, 10272, 10273, 10274, 10275, 10276, 10277, 10278, 10279, 10281, 10285, 10286, 10292
- Staten Island, NY10311, 10313
- Bronx, NY10499
- Amawalk, NY10501
- Ardsley, NY10502
- Ardsley On Hudson, NY10503
- Armonk, NY10504
- Baldwin Place, NY10505
- Bedford, NY10506
- Bedford Hills, NY10507
- Brewster, NY10509
- Briarcliff Manor, NY10510
- Buchanan, NY10511
- Carmel, NY10512
- Chappaqua, NY10514
- Cold Spring, NY10516
- Crompond, NY10517
- Cross River, NY10518
- Croton Falls, NY10519
- Croton On Hudson, NY10520, 10521
- Dobbs Ferry, NY10522
- Elmsford, NY10523
- Garrison, NY10524
- Goldens Bridge, NY10526
- Granite Springs, NY10527
- Harrison, NY10528
- Hartsdale, NY10530
- Hawthorne, NY10532
- Irvington, NY10533
- Jefferson Valley, NY10535
- Katonah, NY10536
- Lake Peekskill, NY10537
- Larchmont, NY10538
- Lincolndale, NY10540
- Mahopac, NY10541
- Mahopac Falls, NY10542
- Mamaroneck, NY10543
- Maryknoll, NY10545
- Millwood, NY10546
- Mohegan Lake, NY10547
- Montrose, NY10548
- Mount Kisco, NY10549
- Mount Vernon, NY10550, 10551, 10552, 10553, 10557, 10558
- North Salem, NY10560
- Ossining, NY10562
- Peekskill, NY10566
- Cortlandt Manor, NY10567
- Pleasantville, NY10570, 10571, 10572
- Port Chester, NY10573
- Pound Ridge, NY10576
- Purchase, NY10577
- Purdys, NY10578
- Putnam Valley, NY10579
- Rye, NY10580
- Scarsdale, NY10583
- Shenorock, NY10587
- Shrub Oak, NY10588
- Somers, NY10589
- South Salem, NY10590
- Tarrytown, NY10591
- Thornwood, NY10594
- Valhalla, NY10595
- Verplanck, NY10596
- Waccabuc, NY10597
- Yorktown Heights, NY10598
- White Plains, NY10601, 10602, 10603, 10605, 10606, 10607, 10610
- West Harrison, NY10604
- Yonkers, NY10701, 10702, 10703, 10704, 10705, 10710
- Hastings On Hudson, NY10706
- Tuckahoe, NY10707
- Bronxville, NY10708
- Eastchester, NY10709
- New Rochelle, NY10801, 10802, 10804, 10805
- Pelham, NY10803
- Suffern, NY10901
- Arden, NY10910
- Bear Mountain, NY10911
- Bellvale, NY10912
- Blauvelt, NY10913
- Blooming Grove, NY10914
- Bullville, NY10915
- Campbell Hall, NY10916
- Central Valley, NY10917
- Chester, NY10918
- Congers, NY10920
- Florida, NY10921
- Fort Montgomery, NY10922
- Garnerville, NY10923
- Goshen, NY10924
- Greenwood Lake, NY10925
- Harriman, NY10926
- Haverstraw, NY10927
- Highland Falls, NY10928
- Highland Mills, NY10930
- Hillburn, NY10931
- Howells, NY10932
- Johnson, NY10933
- Middletown, NY10943
- Monroe, NY10949, 10950
- Monsey, NY10952
- Mountainville, NY10953
- Nanuet, NY10954
- New City, NY10956
- New Hampton, NY10958
- New Milford, NY10959
- Nyack, NY10960
- Orangeburg, NY10962
- Palisades, NY10964
- Pearl River, NY10965
- Piermont, NY10968
- Pomona, NY10970
- Sloatsburg, NY10974
- Southfields, NY10975
- Sparkill, NY10976
- Spring Valley, NY10977
- Sterling Forest, NY10979
- Stony Point, NY10980
- Sugar Loaf, NY10981
- Tallman, NY10982
- Tappan, NY10983
- Thiells, NY10984
- Thompson Ridge, NY10985
- Tomkins Cove, NY10986
- Tuxedo Park, NY10987
- Unionville, NY10988
- Valley Cottage, NY10989
- Warwick, NY10990
- Washingtonville, NY10992
- West Haverstraw, NY10993
- West Nyack, NY10994
- West Point, NY10996, 10997
- Floral Park, NY11002
- Great Neck, NY11022, 11025, 11026, 11027
- New Hyde Park, NY11041, 11043, 11044, 11099
- Port Washington, NY11051, 11052, 11053, 11054, 11055
- Long Island City, NY11109, 11120
- Brooklyn, NY11202, 11240, 11241, 11242, 11243, 11244, 11245, 11247, 11248, 11251, 11252, 11254, 11255, 11256
- Flushing, NY11351, 11352, 11390
- Elmhurst, NY11380
- Ridgewood, NY11386
- Jamaica, NY11405, 11424, 11425, 11431, 11499
- Garden City, NY11531, 11535, 11536, 11599
- Hempstead, NY11551
- Uniondale, NY11555, 11556
- Rockville Centre, NY11571
- Valley Stream, NY11582
- Rockville Center, NY11592
- Westbury, NY11594, 11595, 11597
- Far Rockaway, NY11690, 11695
- West Babylon, NY11707
- Amityville, NY11708
- Farmingdale, NY11736, 11737, 11774
- Huntington Station, NY11750
- Melville, NY11760, 11775
- Syosset, NY11773
- Stony Brook, NY11794
- Hicksville, NY11802, 11815, 11819, 11854, 11855
- Jericho, NY11853
- Aquebogue, NY11931
- Jamesport, NY11947
- New Suffolk, NY11956
- Remsenburg, NY11960
- Southampton, NY11969
- South Jamesport, NY11970
- Speonk, NY11972
- Upton, NY11973
- Beacon, NY12508
- Billings, NY12510
- Cornwall, NY12518
- Cornwall On Hudson, NY12520
- Dover Plains, NY12522
- Fishkill, NY12524
- Holmes, NY12531
- Hopewell Junction, NY12533
- Lagrangeville, NY12540
- Maybrook, NY12543
- Millbrook, NY12545
- Montgomery, NY12549
- Newburgh, NY12550, 12551, 12552, 12555
- New Windsor, NY12553
- Patterson, NY12563
- Pawling, NY12564
- Pleasant Valley, NY12569
- Poughquag, NY12570
- Rock Tavern, NY12575
- Salisbury Mills, NY12577
- Salt Point, NY12578
- Stormville, NY12582
- Vails Gate, NY12584
- Verbank, NY12585
- Wappingers Falls, NY12590
- Poughkeepsie, NY12601, 12602, 12603, 12604
Questions about Marshall Alarm Systems Inc
Does the company work with both homes and businesses?
The published The business offers installation, servicing, and repair for fire and security alarm systems. Services include residential and commercial system categories. A project consultation can clarify the appropriate configuration for a particular property.
Does Marshall Alarm Systems provide video surveillance?
Yes. Services include video surveillance for homes or offices and identifies residential and commercial security and fire alarm systems.
Is access control available?
Services include access control as one of the company’s system categories. The exact equipment and entry points needed depend on the property and the desired access arrangement.
Which equipment manufacturers does the company represent?
The company’s it represents Honeywell, Ademco, Edwards Mirtone, Napco, Firelite, Silent Knight, System Sensor, Northern Computers, and Keri access control. Compatibility should be discussed before work begins.
What areas does Marshall Alarm Systems serve?
Because the record does not provide a current project-specific coverage confirmation, visitors should ask whether their location is served.
Comparable providers and useful nearby alternatives
Last reviewed and updated September 13, 2026 by the WRLW Editorial Team.