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TRUSTED BY DERRY, NH HOMEOWNERS

  • Average homeowner rating star icon4.7
    Average homeowner rating
  • Verified reviews icon188
    Verified security door installation services reviews

Find Security door installation pros in Derry

Avatar for SafeStreets - ADT Authorized Provider
SafeStreets - ADT Authorized Provider
4.8(
320
)
Security Bars - Install or Repair - For Business

Serving Derry, NH and surrounding areas

Approved (Corporate)

In business since 2010

Free estimates

Emergency services offered

"SafeStreets’ alarm system is fantastic. The motion sensors, door/window contacts, and cameras work flawlessly. The home automation features are a huge plus—I can control everything from my phone. Highly recommend SafeStreets to anyone looking for reliable security."
Additional Photos
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Additional Photos

+1

5 neighbors recently requested a quote
Recommended by94%of homeowners
Avatar for ADT
ADT
4.5(
885
)
Security Bars - Install or Repair - For Business

Serving Derry, NH and surrounding areas

Approved (Corporate)

Super Service Award Winner

In business since 1874

Free estimates

Emergency services offered

"Last weekend had someone pry our side door open to our exterior garage and the ADT door sensor picked it up immediately. The alarm siren was loud and scared the person off. Someone from the response center called within 30 seconds. We’re fortunate that the security system did what it is supposed to. Feels like we made the right call going with an ADT security system."
Home Security Essentials
Smart Home Security
Cameras
Our Team
Home Security Essentials

+35

46 neighbors recently requested a quote
Recommended by89%of homeowners
Avatar for Hackworth Fire and Security LLC
Hackworth Fire and Security LLC
4.9(
21
)
Security Bars - Install or RepairSecurity Bars - Install or Repair - For Business

Serving Derry, NH and surrounding areas

Approved

In business since 1995

Free estimates

Credit card accepted

Hackworth Fire & Security, LLC, protects the things that matter. We serve residential and commercial security needs. Our trained technicians can install and maintain any major manufactured security system available. We offer security systems that are user friendly, and very reliable. Call us first!

Keypad
Garage
Response time12 hrs
5 neighbors recently requested a quote
Recommended by100%of homeowners
Avatar for Cairn Home Co
Cairn Home Co
4.7(
6
)
Security Bars - Install or RepairSecurity Bars - Install or Repair - For Business

Serving Derry, NH and surrounding areas

Approved

In business since 2024

Free estimates

Emergency services offered

Cairn Home Co. is Southern New Hampshire's premium home-technology and home-improvement partner, based in Windham. We handle the modern home end to end — smart home automation, security cameras and video doorbells, home theater and AV, WiFi and networking, smart lighting and locks — alongside licensed electrical work, HVAC, plumbing, water heaters, EV chargers, and full kitchen and bathroom remodeling. We also handle the small stuff most companies won't: TV mounting, device setup, and in-home tech help.\n\nWhat sets us apart is how we work: we respond within minutes, show up exactly when we say we will, keep the job site clean, and communicate every step. Licensed and insured. Free, no-pressure estimates. Whether it's a single camera or a full remodel — your home, handled.

26 neighbors recently requested a quote
Avatar for Frontpoint
Frontpoint
4.7(
8,819
)
Security Bars - Install or Repair - For Business

Serving Derry, NH and surrounding areas

In business since 2007

Free estimates

Emergency services offered

"Delivery was delayed due to credit inquiry. After the concern was raised, shipment was rushed to us. Self installation didn't go as easy. Issue was resolved over the phone. The glass break sensor was a bit sensitive to loud noise such as cabinet door closing and door sensor repeatedly falls off and had to be reattached. Notification of alarm activation was fast and made to the right contact numbers. This prevented false alarm calls to the police."
Recommended by93%of homeowners
Avatar for Security One
Security One
4.1(
456
)
Security Bars - Install or Repair - For Business

Serving Derry, NH and surrounding areas

In business since 2007

Credit card accepted

"I switched from another company to Security One, they use the same equipment. They had to come out and recode everything. I simply switched because of the financial benefit. I have only had them for a few months, and I haven't had any problems with them. They save me some money every month.  When my alarm went off, they did call me."
Pictures
Compare our Compact Door Sensors to our Competitors
Additional Photos
Additional Photos
Additional Photos

+16

Recommended by84%of homeowners
Avatar for CSI Secure Solutions
CSI Secure Solutions
4.4(
114
)
Security Bars - Install or Repair - For Business

Serving Derry, NH and surrounding areas

In business since 2001

Free estimates

Emergency services offered

"CSI Secure Solutions were very prompt with their communication. The information given was what I requested. I found this investigative service very helpful and very professional. I would definitely use again in the future.
"
Background Checks
Employee Check
Background Report
Surveillance
Infidelity Monitoring

+12

Recommended by85%of homeowners
Avatar for Protect Your Home
Protect Your Home
3.3(
325
)
Security Bars - Install or Repair - For Business

Serving Derry, NH and surrounding areas

In business since 1998

Credit card accepted

"That's the name I am vaguely familiar with; it's a home security company that is license to ADT franchise or dealer if I am correct.  They were very good.  They were prompt; they were quality.  The individuals move their business.  They were very timely and it was a good experience."
Protect Your Home Vehicle
Recommended by63%of homeowners
Avatar for Protect America Home Security
Protect America Home Security
3.5(
227
)
Security Bars - Install or Repair - For Business

Serving Derry, NH and surrounding areas

In business since 1992

Free estimates

Emergency services offered

"Yvette Pringle provided courteous and professional feedback to me when I called to inquire about a new home security system.  My situation was unique because we were trying to find something that would work for a deaf person.  I appreciated that Yvette did her research to find out what would work.  She also offered different options in terms of a package and plan.  We did end up going with another company, but I really did want to recognize Yvette for her work.  She was very polite and helpful.
"
Platinum Package - Protects up To 15 Doors / Windows for FREE
Protect your Whole Home
Simon XT Touchscreen
Recommended by64%of homeowners
Avatar for Main Street handyman
Main Street handyman
5.0(
11
)
Security Bars - Install or Repair

Serving Derry, NH and surrounding areas

Free estimates

Credit card accepted

\nWe offer a wide range of handyman services in Fremont, NH and surrounding communities. Whether you need something installed, built, fixed or maintained, we are your reliable and local handyman for all handyman services, remodeling handyman, home repairs.

Erins bath remodel
Erins bath remodel
Completed
Completed
New barn door

+12

Recommended by90%of homeowners
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Security Doors questions, answered by experts

You should always install cameras at exterior doors and windows. Other areas where you should place cameras are your front and back yards, the garage and driveway, common living areas, hallways and staircases, and the basement. Remember, you can start with a small Wi-Fi security camera system and always add more cameras if needed.

Yes, you should always change your locks after buying a house. Do so as soon as possible after you move in. Otherwise, you won’t know who has working keys to the property, whether they’re spare keys or otherwise. If an intruder gains access to your house with a key, it may not be covered under your homeowners insurance.

You should be able to use your smart doorbell and access your video feed without a subscription. Subscriptions give you special features, such as night vision, downloading, and automatically saving footage for a set amount of days. It’s a good idea to compare plans among different providers before you commit. 

This is the topic of much debate, though there is no “better,” as it depends on personal preferences. Some of the components of a wireless system keep working when the power goes out, as they are battery-powered. On the other hand, a wireless system typically connects to your modem and router. Wired systems use landlines to communicate, which never go out on their own unless they’re physically cut.

Professionals optimize camera placement, integrate recording systems, and ensure tamper-proof security.

The Derry, NH homeowners’ guide to security door installation services

From average costs to expert advice, get all the answers you need to get your job done.