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TRUSTED BY NEW CASTLE, DE HOMEOWNERS

  • Average homeowner rating star icon4.3
    Average homeowner rating
  • Verified reviews icon42
    Verified home security system services reviews

Top-Rated Home security system pros in New Castle - Updated Nov 2026

Avatar for SafeStreets - ADT Authorized Provider
SafeStreets - ADT Authorized Provider
4.8(
320
)
Alarm or Security System - InstallAlarm or Security System - Install - For BusinessAlarm or Security System - Monitor+5 more

Serving New Castle, DE and surrounding areas

Approved (Corporate)

In business since 2010

Free estimates

Emergency services offered

"SafeStreets made home security easy and stress-free. The technician was knowledgeable, friendly, and completed the installation quickly. Everything was explained clearly, and the ADT system works flawlessly. I feel much safer knowing my home is protected. Excellent service from start to finish—highly recommend SafeStreets for peace of mind and protection!"
Additional Photos
Additional Photos
Additional Photos
Additional Photos
Additional Photos

+1

4 neighbors recently requested a quote
Recommended by94%of homeowners
Avatar for L & R SECURITY SYSTEMS
L & R SECURITY SYSTEMS
4.7(
35
)
Alarm or Security System - InstallAlarm or Security System - Install - For BusinessAlarm or Security System - Monitor+5 more

Serving New Castle, DE and surrounding areas

Approved

In business since 1985

Free estimates

Emergency services offered

"I have used L&R security for several residential properties over the last 15 years or so and I’ve never been disappointed! I recently bought a restaurant and had L&R install a full state of the art security system with 8 HD cameras and it has been a blessing in so many ways! Ray and his team have always been there for system support when we had questions or needed support and the quality of their work has always been on point. Charity starts at home so I’m more than happy to give local family owned companies my business, especially during these trying times."
Security
Surveillance
Recommended by96%of homeowners
Avatar for Guardian Protection Services, INC
Guardian Protection Services, INC
3.6(
20
)
Alarm or Security System - InstallAlarm or Security System - Install - For BusinessAlarm or Security System - Monitor+1 more

Serving New Castle, DE and surrounding areas

Approved

In business since 1950

Free estimates

Warranties offered

Trusted smart home security and small business security, Guardian Protection is the nation's largest privately-held security company helping to protect more than a quarter-million customers. Guardian Protection is a company dedicated to life safety and monitoring of property. We provide an extensive array of security and monitoring services to more than a quarter-million residential and commercial customers. Guardian is the nation's largest privately-held security company, but we weren't always that way. We do business today with the same integrity, attention to detail and commitment to customer service that was present when the company was founded back in 1950. We're a security company you can depend on. Call today for a FREE quote or in home security assessment.

Guardian Protection Professional Installation
Guardian Protection App
Guardian Protection Video Doorbell
Guardian Protection Video Doorbell and App
Guardian Protection Devices

+1

Recommended by68%of homeowners
Avatar for Best Buy - Greater Philadelphia
Best Buy - Greater Philadelphia
4.8(
5
)
Smart Home System - Install or Service

Serving New Castle, DE and surrounding areas

Approved (Corporate)

In business since 1966

Free estimates

Credit card accepted

Thinking about adding new tech or appliances? Get a free In-Home Consultation from Best Buy. A Best Buy, In-Home Advisor can visit your home, show you what is possible, and create a customized plan. Best Buy, works hard every day to enrich the lives of consumers through technology, whether you come to us online, visit our stores or invite us into your homes. We do this by solving technology problems and addressing key human needs across a range of areas, including entertainment, productivity, communication, food, security and health. Call today! \n \n

In-Home Consultation
In-Home Consultation
In-Home Consultation
In-Home Consultation
In-Home Consultation

+5

Recommended by100%of homeowners
Avatar for Protect Your Home
Protect Your Home
2.6(
6
)
Alarm or Security System - InstallAlarm or Security System - Monitor

Serving New Castle, DE and surrounding areas

Approved (Corporate)

In business since 1998

Free estimates

Credit card accepted

Protect Your Home is a leader in the home security industry, providing safety and peace of mind to more than 1.5 million families nationwide. Since we emerged in 1998, we've grown from a company of few to having over 2,000 high performance team members, three locations in Indianapolis, a sales center in Kentucky, and over 128 field branches across the country—and we're still growing. \n \nFor nearly 20 years, Protect Your Home has partnered with ADT®, the #1 name in home security. Today, with our national reach, we are one of ADT's biggest partners and the only partner to be designated as an Authorized Premier Provider. \n \nOur commitment to serving others combined with our projects, events, and culture contribute to the development of our team professionally, personally, and financially. \n \nIt's our mission. It's who we are. It's our legacy. \n

SA and Homeowner
Recommended by100%of homeowners
Avatar for CASTILLOSA GROUP LLC
CASTILLOSA GROUP LLC
5.0(
8
)
Surveillance Cameras - Install or Repair

Serving New Castle, DE and surrounding areas

Approved

In business since 2024

Free estimates

Offers commercial services

Castillosa Group is a Delaware home improvement contractor providing professional remodeling, installation, repair and improvement services for residential properties. From kitchens and bathrooms to doors, outdoor living projects, drywall, additions and specialty installations, we provide complete project solutions with a focus on quality workmanship, clear communication and dependable service.

Interior Doors upgrade
Interior Doors upgrade
Interior Doors upgrade
Interior Doors upgrade
New room addition

+11

4 neighbors recently requested a quote
Avatar for EdGi Automation
EdGi Automation
5.0(
2
)
Building Automation System - Install or Service - For BusinessSmart Home System - Install or Service

Serving New Castle, DE and surrounding areas

Approved

In business since 2019

Free estimates

Small jobs welcome

CALL US DIRECTLY AT 302-448-8557 FOR A FREE QUOTE. EdGi Automation is committed to excellence in every aspect of our business. We uphold a standard of integrity bound by fairness, honesty, and personal responsibility. Our distinction is the quality of service we bring to our customers. Accurate knowledge of our trade combined with ability is what makes us true professionals. Above all, we are watchful of our customers' interests and make their concerns the basis of our business.

Kitchen lighting
Kitchen lighting
Control surface
Control surface
Lighting and fireplace

+1

Response time6 hrs
Recommended by100%of homeowners
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Home Security Systems FAQs, answered by experts

The cost of home automation averages around $1,000, with most projects falling between $200 and $2,000. The total cost depends on several factors, including the level of automation, brand, system features, home size, and location. For a DIY approach, basic home automation technology can cost between $100 and $500, though the scope and interaction between products may be limited. High-end, all-inclusive systems for larger homes can cost anywhere from $10,000 to $150,000, especially when they include smart appliances like refrigerators and dishwashers that require extensive wiring. Additional costs, such as subscriptions for maintenance services, can also impact the total price. It's often helpful to set a budget and consult with an expert to determine the best options for your home.

A keypad deadbolt, a lock requiring a code entered on a keypad entry, can be a convenient option for families with children coming in and out and needing access to the home. It can also offer an easy solution if you rent your home out, since you can easily change the code as needed. So, depending on your home entry’s needs, a keypad deadbolt may be worth the extra expense.

Find a vetted and trusted locksmith to work on your home so you can feel comfortable and safe. Hire a professional with these qualifications:

  • Search a verified directory of locksmiths near you, like those on Angi. 

  • Check for an Associated Locksmiths of America (ALOA) logo on their website or company logo.

  • Read company reviews. You can also check their social media pages.

  • Ask for a pro’s credentials, insurance, licensure, and customer testimonials. 

  • Check if the locksmith is knowledgeable about various topics, from decorative locks to the newest technologies on the market.

Yes, many providers offer remote troubleshooting and monitoring for business networks.

Smart deadbolts are a worthwhile investment for homeowners seeking more convenience, flexibility, and advanced features than a traditional deadbolt can provide. While a strong conventional deadbolt offers sufficient security for most, smart deadbolts provide significant upgrades.

Key benefits include keyless entry via smartphone, keypads, or biometric sensors, and the ability to lock or unlock your door remotely. You can also manage access for guests by creating temporary codes, eliminating the need for physical keys and the risk of them being lost or duplicated. Many models integrate with smart home systems and offer features like automatic locking, entry-exit monitoring, and tamper alerts with encryption for enhanced security.

However, there are downsides to consider. Smart deadbolts are more expensive than their traditional counterparts and rely on batteries and wireless networks to function. This dependency introduces potential vulnerabilities, such as hacking by skilled intruders and privacy concerns. Installation can also be more complex. Despite these drawbacks, the added layer of convenience and protection makes them a compelling option for many.

The New Castle, DE homeowners’ guide to home security system services

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