Ken P.
I had them come out for a small problem with a switch. I also wanted their help with smoke detectors but they wanted to charge an outrageous price ($275) for each smoke detector.
Electrical Connections LLC
Get matched with top smoke detector installation pros in Derwood, MD
There are 9 highly-rated local smoke detector installation pros.
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TRUSTED BY DERWOOD, MD HOMEOWNERS
4.6 Average homeowner rating
2.5k+ Verified smoke detector installation services reviews
Verified Reviews for Smoke Detector Installation pros in Derwood, MD
Last update on October 11, 2025
- Electrical Connections LLC
- David S.
Optima Design are consummate professionals and skilled craftsmen. And they are a full servie design company. Not just painters, electricians and the like. I checked out three painting companies and four electricians to have some major work done. I needed my dining room, living room, two...
- Joseph W.
The Big Deal was advertized as installation of two replacement hard-wired smoke detectors. J&G electric informed me that in order to ensure the guarantee of the two new detectors, I would need to replace any additional existing detectors to the tune of $129 each. I informed J&G that my five...
J & G Electric Co Inc - Jamie S.
If you are considering a safety inspection all they do is plug a electrical outlet ground test ($6 on amazon) into your outlets and press the test button on your smoke detectors. This deal is definitely not worth it. The grade on this deal would have been a D, but they also installed a...
Walls Electrical Service Inc - Jodi R.
I have had a bad customer service experience with them as described above. Furthermore, I have had numerous false alarms with them where the motion detector goes off and no one is in the house, etc. I have not been pleased at all.
Guardian Protection - Kathleen S.
I had some issues with getting Cecelia to respond to my email requesting her assistance. Then I had problems with her providing me with her estimate. Once those issues were resolved, we were able to set a date for her to start working. The entire process took almost two months -- her...
- Miki D.
They had the one we wanted in stock and so were able to install it within a week of putting in my order. The installer was prompt, efficient and very thorough in cleaning up after himself. I would highly recommend this company.
Fairfax Garage Door - Nelly U.
The installer was very knowledgeable. He gave us advice but didn't insist on doing it his way. He was very considerate and the price for the job was very reasonable. I would highly recommend them.
- Gary R.
This company is the worst I have dealt with. I had many missed appointments for installation and repair. Additionally, the humidifier was installed incorrectly.
Find Smoke detector installation pros in Derwood
ADT
3750 Priority Way South Dr
ADT
3750 Priority Way South Dr
Customers say: Terrific value
3651 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.
"There’s nothing like having the best of the best. I’ve used the other big security names before like Vivint and Brinks. They are OK. But after getting acclimated with ADT, it is clear why they are the best. Pricing is fair, equipment is reliable, and every one genuinely seems happy at their job. This goes a long way to a paying customer. Just our perspective for anyone else that is considering all of the big providers in the alarm system landscape. ADT is well well worth it."
Brianne E 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.
"There’s nothing like having the best of the best. I’ve used the other big security names before like Vivint and Brinks. They are OK. But after getting acclimated with ADT, it is clear why they are the best. Pricing is fair, equipment is reliable, and every one genuinely seems happy at their job. This goes a long way to a paying customer. Just our perspective for anyone else that is considering all of the big providers in the alarm system landscape. ADT is well well worth it."
Brianne E on October 2025
Sidike
123 Main St.
Sidike
123 Main St.
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
31 local quotes requested
We specialize in electrical services, troubleshooting, new construction, service upgrades, repairs, home automations, installs, rewiring, lighting, panel upgrades, EV charging station, ceiling fans, and more. We pride ourselves on the quality work we provide, while delivering great customer service. Please see the services we offer below and call -or- click to schedule an estimate today!
"Excellent! Thank you so much!"
Justin W on September 2025
We specialize in electrical services, troubleshooting, new construction, service upgrades, repairs, home automations, installs, rewiring, lighting, panel upgrades, EV charging station, ceiling fans, and more. We pride ourselves on the quality work we provide, while delivering great customer service. Please see the services we offer below and call -or- click to schedule an estimate today!
"Excellent! Thank you so much!"
Justin W on September 2025
Mr. Electric of Bethesda
1513 Sharon Dr
Mr. Electric of Bethesda
1513 Sharon Dr
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
224 local quotes requested
We specialize in electrical services, repairs, installs, lighting, panel upgrades, ceiling fans, and more! We guarantee your satisfaction, and we won’t leave until the job is done right. We pride ourselves on the quality work we provide, while delivering great customer service! Check out all the services we offer below and call -or- click to schedule an estimate today!
"They did an excellent job of installing the new panel at a reasonable price. Also they had financing options that were same as cash. I was provided some options of circuit breakers and the price with the options. The differences in breaker were explained and the code requirements for my area was also explained and compared to other local code standards. I was able to customize the options a little bit based on my needs and I have more space in the panel if I have additional requirements. Going from a box from the 1960’s to a modern solution mad a lot of sense. The installation was smooth with only a short time without power. Throughout the process, I was well informed of the progress. My family was able to work remotely from home during most of the install without too much disruption. (Used cell phone for internet and laptops while power was off.) They even installed a monitoring system for me to track the electrical use of the house. Overall they did a great job and I am very satisfied."
Nick L on April 2025
We specialize in electrical services, repairs, installs, lighting, panel upgrades, ceiling fans, and more! We guarantee your satisfaction, and we won’t leave until the job is done right. We pride ourselves on the quality work we provide, while delivering great customer service! Check out all the services we offer below and call -or- click to schedule an estimate today!
"They did an excellent job of installing the new panel at a reasonable price. Also they had financing options that were same as cash. I was provided some options of circuit breakers and the price with the options. The differences in breaker were explained and the code requirements for my area was also explained and compared to other local code standards. I was able to customize the options a little bit based on my needs and I have more space in the panel if I have additional requirements. Going from a box from the 1960’s to a modern solution mad a lot of sense. The installation was smooth with only a short time without power. Throughout the process, I was well informed of the progress. My family was able to work remotely from home during most of the install without too much disruption. (Used cell phone for internet and laptops while power was off.) They even installed a monitoring system for me to track the electrical use of the house. Overall they did a great job and I am very satisfied."
Nick L on April 2025
Ultra Guard Security Systems
7600-A Lindbergh Drive
Ultra Guard Security Systems
7600-A Lindbergh Drive
Customers say: True professional
Recommended by 96% of Angi customers
Recommended by 96% of HomeAdvisor customers
133 local quotes requested
We are a local boutique security company in Gaithersburg, MD. We offer solutions from residential smart homes to full commercial operations. Personal service, expert design and installation, and cutting edge technology are our strengths.
"They are very responsive, timely and fixed my problems. They work with us on an annual basis."
JANE P on March 2023
We are a local boutique security company in Gaithersburg, MD. We offer solutions from residential smart homes to full commercial operations. Personal service, expert design and installation, and cutting edge technology are our strengths.
"They are very responsive, timely and fixed my problems. They work with us on an annual basis."
JANE P on March 2023
Green's Electric
13671 Baltimore Ave,
Green's Electric
13671 Baltimore Ave,
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
358 local quotes requested
Electrical Service & Repairs - We guarantee your satisfaction, and we won’t leave until the job is done right. Our team has quality experience in this industry, and we make sure our customers are happy before we leave. Call or click to schedule an estimate today!
"I have zero complaints, they were punctual, professional and very reasonably priced. Came when they said they would and finished when they said they would, i highly recommend."
Michelle M on October 2025
Electrical Service & Repairs - We guarantee your satisfaction, and we won’t leave until the job is done right. Our team has quality experience in this industry, and we make sure our customers are happy before we leave. Call or click to schedule an estimate today!
"I have zero complaints, they were punctual, professional and very reasonably priced. Came when they said they would and finished when they said they would, i highly recommend."
Michelle M on October 2025
William G Hyman Electrical Contractor
712 Notley Rd
William G Hyman Electrical Contractor
712 Notley Rd
Customers say: Super punctual
Recommended by 94% of Angi customers
Recommended by 94% of HomeAdvisor customers
87 local quotes requested
Voted Best service for over 50 years. Our trained experienced electricians can offer you a full range electrical work from expert troubleshooting & repair of electrical systems, installation of new outlets, switches, lighting and other electrical installation services. Whether it is one light fixture or a comprehensive wiring service upgrade or Heavy-Up, we have the necessary tools, knowledge and experience to turn your plan into reality. For immediate service or help answering any questions, please don't hesitate to call 301-622-1777 or email us directly. [email protected]
"I was very satisfied with the service provided by the William Hyman Electrical Contractor team. The electricians were very professional and efficient. They resolved the electrical issues in a timely manner. Very respectful of home and family members. I would highly recommend this company."
Zetta L on August 2025
Voted Best service for over 50 years. Our trained experienced electricians can offer you a full range electrical work from expert troubleshooting & repair of electrical systems, installation of new outlets, switches, lighting and other electrical installation services. Whether it is one light fixture or a comprehensive wiring service upgrade or Heavy-Up, we have the necessary tools, knowledge and experience to turn your plan into reality. For immediate service or help answering any questions, please don't hesitate to call 301-622-1777 or email us directly. [email protected]
"I was very satisfied with the service provided by the William Hyman Electrical Contractor team. The electricians were very professional and efficient. They resolved the electrical issues in a timely manner. Very respectful of home and family members. I would highly recommend this company."
Zetta L on August 2025
Sansbury Electric
2766 Garfield Ave
Sansbury Electric
2766 Garfield Ave
Customers say: Quality work
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
33 local quotes requested
Sansbury Electric is a small, locally-owned business, with over 30 years of experience that have served Washington, D.C, Maryland, Virginia and Delaware since 2010. Our team is known for our high-quality electrical services with a team that delivers a client-focused experience.
"Easy to schedule, easy to pay. Good customer service."
Monika J on May 2025
Sansbury Electric is a small, locally-owned business, with over 30 years of experience that have served Washington, D.C, Maryland, Virginia and Delaware since 2010. Our team is known for our high-quality electrical services with a team that delivers a client-focused experience.
"Easy to schedule, easy to pay. Good customer service."
Monika J on May 2025
Lloyd Electrical Service LLC
7426 Taylor Street
Lloyd Electrical Service LLC
7426 Taylor Street
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
43 local quotes requested
My name is Lloyd and I am a master electrician. I have been doing electrical work for the past 23 years. Just decided to open my own company. My work entails from electrical service to customs homes
"The job was done, timely, effectively, and efficiently. I am very pleased with Mr. Lloyd’s services. I would highly recommend his services, he took the time to explain in detail what was necessary to complete the project, as a layperson I greatly appreciated his knowledge and expertise."
Apryl J on May 2023
My name is Lloyd and I am a master electrician. I have been doing electrical work for the past 23 years. Just decided to open my own company. My work entails from electrical service to customs homes
"The job was done, timely, effectively, and efficiently. I am very pleased with Mr. Lloyd’s services. I would highly recommend his services, he took the time to explain in detail what was necessary to complete the project, as a layperson I greatly appreciated his knowledge and expertise."
Apryl J on May 2023
Beacon Home Services
10498 Colonel Ct
Beacon Home Services
10498 Colonel Ct
Customers say: Super punctual
Recommended by 90% of Angi customers
Recommended by 90% of HomeAdvisor customers
859 local quotes requested
When you have an electrical or plumbing issue, you want it solved quickly for the safety and comfort of you and your family. Our technicians genuinely care about our customers, which is one of the reasons why we have been a trusted electrical and plumbing services company in the area for the past 20+ years. Our technicians have well stocked trucks and are able to do most repairs the same day. We offer 5-star service, same-day services, upfront pricing, as well as various financing options. Our technicians are highly trained and confident in their skills and ability to handle any electrical and plumbing issue in your home and stand behind all our recommended repairs.
"Don’t use the plumbing! Called to have Kohler toilet tank plunger repaired. Whole installation is $20. Labor is an hour at $80 so the price is $150, at most. No, they charged $450–BS! These guys are a scam. No prices and I told them to have the repair person call me before arriving. No call, no prices. And, then the repair person has the stones to tell me that everyone overcharges!! Let’s start with not using Beacon!!!"
Joseph B on June 2025
When you have an electrical or plumbing issue, you want it solved quickly for the safety and comfort of you and your family. Our technicians genuinely care about our customers, which is one of the reasons why we have been a trusted electrical and plumbing services company in the area for the past 20+ years. Our technicians have well stocked trucks and are able to do most repairs the same day. We offer 5-star service, same-day services, upfront pricing, as well as various financing options. Our technicians are highly trained and confident in their skills and ability to handle any electrical and plumbing issue in your home and stand behind all our recommended repairs.
"Don’t use the plumbing! Called to have Kohler toilet tank plunger repaired. Whole installation is $20. Labor is an hour at $80 so the price is $150, at most. No, they charged $450–BS! These guys are a scam. No prices and I told them to have the repair person call me before arriving. No call, no prices. And, then the repair person has the stones to tell me that everyone overcharges!! Let’s start with not using Beacon!!!"
Joseph B on June 2025
GAC Services
227 E Deer Park Dr
GAC Services
227 E Deer Park Dr
Customers say: Quick response
Recommended by 93% of Angi customers
Recommended by 93% of HomeAdvisor customers
666 local quotes requested
GAC Services is a residential cooling, heating, and electrical contractor setting new standards in the Maryland HVAC and electric market. Since 1970, we’ve developed a strong reputation for providing the Montgomery County and Frederick County areas with reliable cooling and heating services. In 2014, we expanded our service offerings to include electrical services—allowing us to offer our customers the same great service in a new area of business. Additional DBA: Gaithersburg Heating & Cooling
"Highly professional, knowledgeable and well behaved technician. Prices offered were good too. I definitely recommend the company."
Deepak K on February 2025
GAC Services is a residential cooling, heating, and electrical contractor setting new standards in the Maryland HVAC and electric market. Since 1970, we’ve developed a strong reputation for providing the Montgomery County and Frederick County areas with reliable cooling and heating services. In 2014, we expanded our service offerings to include electrical services—allowing us to offer our customers the same great service in a new area of business. Additional DBA: Gaithersburg Heating & Cooling
"Highly professional, knowledgeable and well behaved technician. Prices offered were good too. I definitely recommend the company."
Deepak K on February 2025
FAQs for smoke detector installation projects in Derwood, MD
The average cost of a home security system is about $700, ranging from $280 to $1,150. Costs to consider include equipment, surveillance fees, and other additional features. Cost factors that determine your system’s price include the type of security system, materials, labor, activation fees, monthly fees, and permits. Additional features and upgrades may include:
Video surveillance monitoring: $40–$65 per month
Smart home locks: $150
Smart home lighting: $15–$90
Smart smoke, fire, and carbon monoxide alarms: $35–$100
Smart thermostat: $130–$500
Yes, you should get a quote or an estimate from an electrician. Most electricians offer free estimates or quotes. When getting quotes, do your research and verify each electrician’s license. Get quotes from three different electricians to compare. If the prices or items listed appear different on the quotes, ask the electrician to clarify. Learning as much as you can about the electrical work you want done will help you get the most accurate estimate.
Qualified, licensed electricians will charge from $50 to $100 per hour. The cost to hire an electrician for emergency visits may range from $100 to $200 per hour because this urgent service usually takes place during off hours and may require an electrician to leave or reschedule jobs they’re currently working on. Scheduling work on holidays or during periods of high customer demand, like after a major storm, will also lead to higher rates or extra fees.
An accredited, licensed smart home specialist should install your home automation system. For example, a qualified smart home specialist will belong to an organization like the Custom Electronic Design & Installation Association. Licenses for qualified technicians require the technician to demonstrate experience and pass state testing. If you’re ready to install a home automation system, consult multiple technicians in your area to compare services and prices and find the best fit for your job.
The average cost of a home automation system is around $950, but typically ranges from $200 to $1,700, depending on the brand, system features, system size, home size, and location. The highest-end home automation systems can cost anywhere from $10,000 to $150,000, including smart appliances like refrigerators, dishwashers, and ovens that require installing extensive wiring. Any subscriptions for maintenance services will also impact the cost of a home automation system.
The Derwood, MD homeowners’ guide to smoke detector installation services
From average costs to expert advice, get all the answers you need to get your job done.
Motion-sensor lighting costs vary greatly because they have so many customizations available. Learn more by using this cost guide about motion-sensor lights.
Discover how much smoke detector installation costs. Understand your out-of-pocket expenses so you can protect your family and home.
•Discover the average smart home system cost, including key price factors and tips to save on installation, devices, and ongoing expenses.
Wondering where to place security cameras inside and outside of your home? Get expert guidance on the best locations for surveillance.
Stay warm and safe with these 9 essential space heater safety tips to prevent fires, protect kids or pets, and keep your home cozy all winter long.
Home security begins at the front door. Check out our tips to improve your front entry door security as a barrier against unwanted intruders. There are many different strategies, from installing an entirely new door to an updated lock.
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