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  • Average homeowner rating star icon4.5
    Average homeowner rating
  • Verified reviews icon42
    Verified home security system services reviews

Find Home security system pros in Gwynedd Valley

Avatar for L & R SECURITY SYSTEMS

L & R SECURITY SYSTEMS

112 OAKVIEW DR
4.82(
33
)
Approved Pro

L & R SECURITY SYSTEMS

112 OAKVIEW DR
4.82(
33
)
Approved Pro
Customers say: Terrific value
Recommended by 93% of Angi customers
Recommended by 93% of HomeAdvisor customers
27 local quotes requested

L & R Security has been a leader in the security industry for over 25 years. A family owned and operated company located in Media, PA, we specialize in residential and commercial security. An L & R security system is both easy to use, affordable, and will protect you against burglary, fire, carbon monoxide, water damage, and medical emergencies.

"Professional, generous, fast. Happy with my choice and my alarm system."

Ellie B on August 2022

L & R Security has been a leader in the security industry for over 25 years. A family owned and operated company located in Media, PA, we specialize in residential and commercial security. An L & R security system is both easy to use, affordable, and will protect you against burglary, fire, carbon monoxide, water damage, and medical emergencies.

"Professional, generous, fast. Happy with my choice and my alarm system."

Ellie B on August 2022


Avatar for ADT

ADT

3750 Priority Way South Dr
4.53(
734
)
Approved Pro

ADT

3750 Priority Way South Dr
4.53(
734
)
Approved Pro
Customers say: Terrific value
3637 local quotes requested
151 years of experience

ADT home security systems are backed by more than 145 years of experience. As the leader in home security, ADT can help you customize a home security system with easy-to-use equipment and special security features to meet your safety needs. We have service centers nationwide that can install an ADT home security system within 24 hours in most areas. Once your home is equipped with our top-of-the-line system, it is connected to a network of ADT Monitoring Centers nationwide which deliver non-stop security monitoring 365 days a year. All of our installation technicians are internal employees, and not third-party contractors. You can count on your Security Advisor to take the time to set up your system properly, help you understand how the system works, and help make sure your home and family are thoroughly protected.

"Bought security through ADT mainly for the automation options that come with the system. My spouse loves being able to turn on and off our lights in different areas of the house while we are gone. We travel often, so giving the illusion that we are home is a good deterrent."

Luke W on October 2025

ADT home security systems are backed by more than 145 years of experience. As the leader in home security, ADT can help you customize a home security system with easy-to-use equipment and special security features to meet your safety needs. We have service centers nationwide that can install an ADT home security system within 24 hours in most areas. Once your home is equipped with our top-of-the-line system, it is connected to a network of ADT Monitoring Centers nationwide which deliver non-stop security monitoring 365 days a year. All of our installation technicians are internal employees, and not third-party contractors. You can count on your Security Advisor to take the time to set up your system properly, help you understand how the system works, and help make sure your home and family are thoroughly protected.

"Bought security through ADT mainly for the automation options that come with the system. My spouse loves being able to turn on and off our lights in different areas of the house while we are gone. We travel often, so giving the illusion that we are home is a good deterrent."

Luke W on October 2025


"Glenn goes above and beyond for his customers. We hired Glenn for a number of different activities including hanging 75” TV over the mantle, installing recessed lighting and fixing the electrical panel. Glenn is knowledgeable, hardworking and always wants his customers to be happy with the end product. This combination of attributes makes for one top-notch electrician! Highly recommended"

Ryan H on September 2021

ALL WORK PERFORMED BY OWNER - Licensed and Insured - PA Home Improvement Contractor certified #054145 - 40 years experience

"Glenn goes above and beyond for his customers. We hired Glenn for a number of different activities including hanging 75” TV over the mantle, installing recessed lighting and fixing the electrical panel. Glenn is knowledgeable, hardworking and always wants his customers to be happy with the end product. This combination of attributes makes for one top-notch electrician! Highly recommended"

Ryan H on September 2021


Avatar for STAPLEFORD ELECTRIC

STAPLEFORD ELECTRIC

3847 EVELYN DR
4.73(
82
)
Approved Pro

STAPLEFORD ELECTRIC

3847 EVELYN DR
4.73(
82
)
Approved Pro
Customers say: Quality work
Recommended by 95% of Angi customers
Recommended by 95% of HomeAdvisor customers
57 local quotes requested

Family Owned and Operated for over 26 years. Whether you need wiring upgrades in your home or emergency lighting installed at your office, our team of contractors has the experience to handle all jobs. You can trust the reputation behind our name - we bring years of expertise to our business, and we guarantee satisfaction with all work we perform

"Fantastic ? I will keep contact information? Definitely Satisfied?"

Arletha W on October 2022

Family Owned and Operated for over 26 years. Whether you need wiring upgrades in your home or emergency lighting installed at your office, our team of contractors has the experience to handle all jobs. You can trust the reputation behind our name - we bring years of expertise to our business, and we guarantee satisfaction with all work we perform

"Fantastic ? I will keep contact information? Definitely Satisfied?"

Arletha W on October 2022


"Everything had gone very smoothly..I cannot say enough good things about these highly skilled individuals.."

Robert S on January 2022

SHIELD Security Systems Lehigh Valley, PA is a member of the SHIELD Group of Companies, a national network of locally owned electronic security companies offering exceptional service and expertise to home and business owners. We look forward to welcoming you to our family of happy clients.

"Everything had gone very smoothly..I cannot say enough good things about these highly skilled individuals.."

Robert S on January 2022


Avatar for Brandon Electric Inc

Brandon Electric Inc

7335 Rising Sun Ave
4.91(
1,455
)
Approved Pro

Brandon Electric Inc

7335 Rising Sun Ave
4.91(
1,455
)
Approved Pro
Customers say: Super punctual
Recommended by 96% of Angi customers
Recommended by 96% of HomeAdvisor customers
114 local quotes requested

Brandon Electric, Inc., has been serving Philadelphia, Bucks, Montgomery, Delaware, and Chester Counties for more than 39 years. Our company is licensed and fully insured. We offer 24-hour emergency service and our crews are radio dispatched daily in your area. We carry workman's comp for all our employees and never use sub-contractors. All of our trucks have company signs and our employees wear uniforms. We have 10 fully stocked and radio dispatched trucks in your neighborhoods daily. Award winning. Cost is determined by the job. 16 employees. Travel charges may apply. Additional phones - (215) 947-2203, (215) 657-4303, (610)565-1400, (215) 244-9120, (215) 355-6520.

"It was just a few years ago that we had Brandon Electric (contacted after checking Angi reviews) upgraded our service and made other improvements to our home near Conshohocken. Suddenly (it seems) we decided to move into a condo in town. While the buyers of our house certainly benefitted from the electrical improvements, we re-connected with Brandon Electric to make our condo just right. We added ceiling fans, moved switches, added mid-wall outlets. They even installed the wall-mounted TV's for us! We could not be happier with the professionalism and service provided by Jeff and the electricians. They were prompt, thorough and great communicators throughout the process. They kept in touch and strategized when we were delayed by government red tape. They estimated, and delivered, at thousands of dollars less than the first contractor we had out. They accommodated changes we wanted to make both before and even after they had started work. We highly recommend Brandon Electric."

Steve S on November 2023

Brandon Electric, Inc., has been serving Philadelphia, Bucks, Montgomery, Delaware, and Chester Counties for more than 39 years. Our company is licensed and fully insured. We offer 24-hour emergency service and our crews are radio dispatched daily in your area. We carry workman's comp for all our employees and never use sub-contractors. All of our trucks have company signs and our employees wear uniforms. We have 10 fully stocked and radio dispatched trucks in your neighborhoods daily. Award winning. Cost is determined by the job. 16 employees. Travel charges may apply. Additional phones - (215) 947-2203, (215) 657-4303, (610)565-1400, (215) 244-9120, (215) 355-6520.

"It was just a few years ago that we had Brandon Electric (contacted after checking Angi reviews) upgraded our service and made other improvements to our home near Conshohocken. Suddenly (it seems) we decided to move into a condo in town. While the buyers of our house certainly benefitted from the electrical improvements, we re-connected with Brandon Electric to make our condo just right. We added ceiling fans, moved switches, added mid-wall outlets. They even installed the wall-mounted TV's for us! We could not be happier with the professionalism and service provided by Jeff and the electricians. They were prompt, thorough and great communicators throughout the process. They kept in touch and strategized when we were delayed by government red tape. They estimated, and delivered, at thousands of dollars less than the first contractor we had out. They accommodated changes we wanted to make both before and even after they had started work. We highly recommend Brandon Electric."

Steve S on November 2023


Monitex Security, Inc.

670 Myrtle Avenue, Suite 6342
New on AngiNew on Angi
Approved Pro

Monitex Security, Inc.

670 Myrtle Avenue, Suite 6342
New on AngiNew on Angi
Approved Pro
8 years of experience
Free onsite estimate

We only provide Virtual Remote Guardian. We do not offer any other services. We offer over 20 years experience in the Security Services Industry. We've established a solid reputation in security projects for residential homes in the Lewisville and surrounding areas. We are committed to providing a personalized service for each individual project we take on. We look forward to building strong, long-term relationships with our clients and guarantee your satisfaction.

We only provide Virtual Remote Guardian. We do not offer any other services. We offer over 20 years experience in the Security Services Industry. We've established a solid reputation in security projects for residential homes in the Lewisville and surrounding areas. We are committed to providing a personalized service for each individual project we take on. We look forward to building strong, long-term relationships with our clients and guarantee your satisfaction.


Avatar for Services Butler

Services Butler

68 Beacon St
5.00(
1
)
Approved Pro

Services Butler

68 Beacon St
5.00(
1
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
5 years of experience

We specialize in residential and Monitored Security & Automation. Options include: Remote Monitoring | Indoor & Outdoor Cameras | Camera Doorbells | Smart Locks. Our system is custom built to deter real threats our home security systems doesn't just record crime, they help prevent it. With outdoor security cameras that detect lurkers and scare them away, a doorbell camera that detects and protects packages, and smart locks, lighting, and security sensors—your home is always protected.

"Extremely efficient and professional!"

Mark K on June 2021

We specialize in residential and Monitored Security & Automation. Options include: Remote Monitoring | Indoor & Outdoor Cameras | Camera Doorbells | Smart Locks. Our system is custom built to deter real threats our home security systems doesn't just record crime, they help prevent it. With outdoor security cameras that detect lurkers and scare them away, a doorbell camera that detects and protects packages, and smart locks, lighting, and security sensors—your home is always protected.

"Extremely efficient and professional!"

Mark K on June 2021


Avatar for SGL Distributions, LLC

SGL Distributions, LLC

PO Box 632
New on AngiNew on Angi
Approved Pro

SGL Distributions, LLC

PO Box 632
New on AngiNew on Angi
Approved Pro
9 years of experience
Free onsite estimate

At SGL Distributions, LLC, we pride ourselves on providing quality service that customers can believe in. Whether it's surveillance cameras or alarm systems, we can take care of all your security needs. Ask us about our service! We look forward to working with you!

At SGL Distributions, LLC, we pride ourselves on providing quality service that customers can believe in. Whether it's surveillance cameras or alarm systems, we can take care of all your security needs. Ask us about our service! We look forward to working with you!


"Professional installation with a quick response."

Sonny H on June 2020

Monday-Friday; 7am-5pm

"Professional installation with a quick response."

Sonny H on June 2020

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Home Security Systems questions, answered by experts

Your best bet is to install a bracket that secures to the bottom of the unit and the side of your house. You should still secure the AC unit in the open window using some of the other methods already listed, but a bracket is best to ensure that it stays put—both during operation and in case of an attempted theft.

Costs depend on issue complexity, labor, replacement parts, and system age.

Changing the alarm in your wireless security system is a perfectly reasonable DIY task that most people can complete on their own. Simply open the system’s control panel, remove the existing battery, and replace it with a new one. If you’re using a wired system, this may require disconnecting and reconnecting both the positive and negative wires attached to the battery, and you may want to call in a professional to help. 

Professional home automation services can include automation for nearly anything in your home, so the possibilities are endless. Some of the more common things homeowners use automation for include the following:

  • Heating and cooling for automatic comfort

  • Security cameras and emergency call systems

  • Door and window sensors to detect opening, closing, and break-ins

  • Solar system automation to maximize energy savings

  • Automatic door locks

  • Garage door openers

  • Speaker systems

  • Lighting

  • Appliances

  • Smoke and CO detectors

  • Blinds and other window coverings

  • Lawn irrigation systems

  • Water monitoring

False alarms happen, and they could be due to a problem you need to troubleshoot, like faulty wiring, a mistaken setting, or the system needing an update. Turn off your system by disconnecting its power supply (both the battery and transformer) and give the manufacturer a call to see what they advise. 

The Gwynedd Valley, PA homeowners’ guide to home security system services

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