*The Angi rating for Nest Installation companies in Nanjemoy, MD is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Nest Installation needs.
*The HomeAdvisor rating for Nest Installation companies in Nanjemoy, MD is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Nest Installation needs.
Last update on May 03, 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.
"Great service by ADT! Integrated with Google. Officially have a smart home!"
Natalie N on April 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.
"Great service by ADT! Integrated with Google. Officially have a smart home!"
Natalie N on April 2025
FREE IN-HOME ESTIMATES | GET A FREE AIR CONDITIONER Cyprus Air Heating & Cooling is your single resource for all your home comfort needs, from tailoring your ideal comfort system to installation, service and beyond. Cyprus Air installs and repairs a variety of Heating & Cooling equipment. With over 56 years of experience in the business, we also offer other home improvement and indoor comfort services such as Gas Fireplaces & Gas logs, and Duct Cleaning. With so many years of design, and installations in Northern Virginia, DC and Maryland, Cyprus Air offers its service oriented expertise and reliability to ensure the high quality standards that architects, engineers, and homeowners have come to rely on from one of the industry leaders.
"I begin this review by saying that I do not know the ins and outs of this company’s day-to-day doings, nor do I feel that this has been the operations of this company from its start. I choose to write this as a way of providing others with my story so that they may take caution when dealing with them and so that this company can ameliorate their behavior toward their customers. My journey began in October of 2021 when my husband and I decided to place a gas insert in our traditional open fireplace. I went online and found Cyprus Air. They came to our home and did a quote with us, which we accepted. The goal was to have the fireplace inserted in before Christmas. The first step was a gas line to the fireplace. This was the beginning of the continuous problems that would develop for three years. We had multiple issues with the gas line, multiple technicians sent to our home, and had numerous inspections by Fairfax County fail before they finally sent out their “go-to” guy, who managed to fix the problem, leading to us finally passing the inspection on March 11th of 2022. Let me also note, that I made numerous calls to Cyprus Air during this time frame always with a promise of a return call, that NEVER came. I even walked into their showroom in Springfield to get answers after not being able to get anyone to answer my calls. I spoke with a supposed manager over the phone at some point, who also did not return the calls he made promised to do. I then asked to speak to someone higher, which, as far as I know, I did. That was when their “go-to” guy was finally dispatched. This “higher up” gentleman promised to follow up to ensure all went well. I never heard from him either. During the October to March timeframe, the technicians that were dispatched to our address were unprepared, in terms of supplies. They asked us for paper towels and a ladder at one point. The ladder, which was wooden, they managed to break; I contacted the “manager” who informed me he would look into what he could do to remedy the situation. Nothing was done. Also, during this time, we were being charged for a service contract that we signed up for but had no fireplace to service. When asked, we were told that they would take the charges off the back end. This will come into play later in this story. Also, when they finally did install the fireplace and were removing the boxes from the garage to dispose of, they took a large wall hanging that was still in its box that had just been purchased. This was also mentioned to Cyprus without any resolution. Finally, in May the fireplace was fully installed and ready to go, just in time for summer. We utilized it in the winter of 2022 and in March of 2023, we made our first service call, just to ensure everything was working properly. They came out did a bit of cleaning and left, however, they did not note that there were lightbulbs that were not working. So, we contacted Cyprus Air to let them know this had been missed. They then sent out another technician, who took note of the bulbs and stated that he would place the order, and someone would be in contact to schedule another visit once they came in. We never heard from Cyprus, and we waited for a very long time (mostly because we were tired of making calls). We finally called to check the status of the bulbs (about 6 months later) to be told they had no record of the order and would need to send another technician out to take a look because they didn’t know which type to order. So, the technician came out in November of 2023, took the information, and again stated he would place the order, and someone would contact us. Again, no contact. Also, as another note, the remote for our fireplace magically disappeared after this service call. When I called Cyprus and mentioned that I thought the technician had taken it, but wasn’t 100% sure, they informed me that it would be another service call and $500 to replace the remote. At the beginning of February, I was done dealing with this company, so we called to request the service contract be terminated. Please note, that we signed a one-year service contract and were told it would go month to month after the year and we could cancel at any time. When we called, we were told that they were not sure they could cancel and that there may be additional charges, but that someone would contact us about this. Again, no contact, however, they did set up a service call for us and had someone show up at our home on February 21, 2024. We were unaware of this service call until the day of. No one was at the home upon the technician’s arrival. I contacted Cyprus via the text they sent regarding the service call and stated: “Didn’t schedule service. Asked for a service contract to be terminated.” For which I received the following reply: “ok, sent an email to cancel”. The next day I received the following reply to my cancellation “Good morning, this is Kimberly with Cyprus Air Heating & Cooling contacting you in regards to your request to cancel your maintenance contract. There are 3 more payments due in order to cancel in the of $120. I can charge the card on file for the final 3 payments to complete the 12-month contract and cancel. Please either respond to this text or give us a call at 571-367-9600. Thank you.” I then replied with: “We have had it for well over a year and were told we could cancel anytime after August of 2023. Very confused.” For which the following reply was received: “No ma’am, the contract is 12 months per visit. You had 2 visits with us and made 21 payments, resulting in 3 more payments due. It is a 12-month period per visit. Once you have another visit it renews for another 12 months. This is all stated in the contract you signed.” Needless to say, my reply was friendly back, as I reminded them that we only ever had one service call, but that things were not completed, and to this day had still not been fixed. I also mentioned that I had been trying to get out from “underneath” them and did not trust anything. I insisted that they cancel the contract, and NOT charge me the $120. I may or may not have mentioned getting Lawyers involved at this point also. The reply I received was priceless: “That is fine, the account will go to collections. Thank you! There is a lot of information here, but I feel it is necessary for anyone who is truly looking to deal with this company to have the full story from a “customer”. I wish you luck!"
Victoria G on February 2024
FREE IN-HOME ESTIMATES | GET A FREE AIR CONDITIONER Cyprus Air Heating & Cooling is your single resource for all your home comfort needs, from tailoring your ideal comfort system to installation, service and beyond. Cyprus Air installs and repairs a variety of Heating & Cooling equipment. With over 56 years of experience in the business, we also offer other home improvement and indoor comfort services such as Gas Fireplaces & Gas logs, and Duct Cleaning. With so many years of design, and installations in Northern Virginia, DC and Maryland, Cyprus Air offers its service oriented expertise and reliability to ensure the high quality standards that architects, engineers, and homeowners have come to rely on from one of the industry leaders.
"I begin this review by saying that I do not know the ins and outs of this company’s day-to-day doings, nor do I feel that this has been the operations of this company from its start. I choose to write this as a way of providing others with my story so that they may take caution when dealing with them and so that this company can ameliorate their behavior toward their customers. My journey began in October of 2021 when my husband and I decided to place a gas insert in our traditional open fireplace. I went online and found Cyprus Air. They came to our home and did a quote with us, which we accepted. The goal was to have the fireplace inserted in before Christmas. The first step was a gas line to the fireplace. This was the beginning of the continuous problems that would develop for three years. We had multiple issues with the gas line, multiple technicians sent to our home, and had numerous inspections by Fairfax County fail before they finally sent out their “go-to” guy, who managed to fix the problem, leading to us finally passing the inspection on March 11th of 2022. Let me also note, that I made numerous calls to Cyprus Air during this time frame always with a promise of a return call, that NEVER came. I even walked into their showroom in Springfield to get answers after not being able to get anyone to answer my calls. I spoke with a supposed manager over the phone at some point, who also did not return the calls he made promised to do. I then asked to speak to someone higher, which, as far as I know, I did. That was when their “go-to” guy was finally dispatched. This “higher up” gentleman promised to follow up to ensure all went well. I never heard from him either. During the October to March timeframe, the technicians that were dispatched to our address were unprepared, in terms of supplies. They asked us for paper towels and a ladder at one point. The ladder, which was wooden, they managed to break; I contacted the “manager” who informed me he would look into what he could do to remedy the situation. Nothing was done. Also, during this time, we were being charged for a service contract that we signed up for but had no fireplace to service. When asked, we were told that they would take the charges off the back end. This will come into play later in this story. Also, when they finally did install the fireplace and were removing the boxes from the garage to dispose of, they took a large wall hanging that was still in its box that had just been purchased. This was also mentioned to Cyprus without any resolution. Finally, in May the fireplace was fully installed and ready to go, just in time for summer. We utilized it in the winter of 2022 and in March of 2023, we made our first service call, just to ensure everything was working properly. They came out did a bit of cleaning and left, however, they did not note that there were lightbulbs that were not working. So, we contacted Cyprus Air to let them know this had been missed. They then sent out another technician, who took note of the bulbs and stated that he would place the order, and someone would be in contact to schedule another visit once they came in. We never heard from Cyprus, and we waited for a very long time (mostly because we were tired of making calls). We finally called to check the status of the bulbs (about 6 months later) to be told they had no record of the order and would need to send another technician out to take a look because they didn’t know which type to order. So, the technician came out in November of 2023, took the information, and again stated he would place the order, and someone would contact us. Again, no contact. Also, as another note, the remote for our fireplace magically disappeared after this service call. When I called Cyprus and mentioned that I thought the technician had taken it, but wasn’t 100% sure, they informed me that it would be another service call and $500 to replace the remote. At the beginning of February, I was done dealing with this company, so we called to request the service contract be terminated. Please note, that we signed a one-year service contract and were told it would go month to month after the year and we could cancel at any time. When we called, we were told that they were not sure they could cancel and that there may be additional charges, but that someone would contact us about this. Again, no contact, however, they did set up a service call for us and had someone show up at our home on February 21, 2024. We were unaware of this service call until the day of. No one was at the home upon the technician’s arrival. I contacted Cyprus via the text they sent regarding the service call and stated: “Didn’t schedule service. Asked for a service contract to be terminated.” For which I received the following reply: “ok, sent an email to cancel”. The next day I received the following reply to my cancellation “Good morning, this is Kimberly with Cyprus Air Heating & Cooling contacting you in regards to your request to cancel your maintenance contract. There are 3 more payments due in order to cancel in the of $120. I can charge the card on file for the final 3 payments to complete the 12-month contract and cancel. Please either respond to this text or give us a call at 571-367-9600. Thank you.” I then replied with: “We have had it for well over a year and were told we could cancel anytime after August of 2023. Very confused.” For which the following reply was received: “No ma’am, the contract is 12 months per visit. You had 2 visits with us and made 21 payments, resulting in 3 more payments due. It is a 12-month period per visit. Once you have another visit it renews for another 12 months. This is all stated in the contract you signed.” Needless to say, my reply was friendly back, as I reminded them that we only ever had one service call, but that things were not completed, and to this day had still not been fixed. I also mentioned that I had been trying to get out from “underneath” them and did not trust anything. I insisted that they cancel the contract, and NOT charge me the $120. I may or may not have mentioned getting Lawyers involved at this point also. The reply I received was priceless: “That is fine, the account will go to collections. Thank you! There is a lot of information here, but I feel it is necessary for anyone who is truly looking to deal with this company to have the full story from a “customer”. I wish you luck!"
Victoria G on February 2024
6+ years of experience! We are a family-owned and operated electrical company based in Virginia USA. Our mission is to be a provider that brings back the personal touch with our customers. We will build a relationship that will last a lifetime after you see our quality work. As a locally owned and operated business, we feel invested in our clients and constantly strive for customer satisfaction. Call or message us to schedule an estimate today!
6+ years of experience! We are a family-owned and operated electrical company based in Virginia USA. Our mission is to be a provider that brings back the personal touch with our customers. We will build a relationship that will last a lifetime after you see our quality work. As a locally owned and operated business, we feel invested in our clients and constantly strive for customer satisfaction. Call or message us to schedule an estimate today!
Abstract Security Solutions prides itself on professional security camera installations for both residential and commercial use. We work closely with the client to determine what the immediate concerns are and from there we are able to design and implement a custom system with a one time cost. No monthly charges. All work is guaranteed and we offer 2 year warranty on most equipment. Abstract also offers system leasing on case by case basis. All camera systems have the ability to be viewed through stationary monitors placed on site, and/or remotely through mobile devices or PC. Our cameras are of the highest quality and are rated for indoor and outdoor use. We have access to a wide range of cameras with options to fit any situation including night vision capabilities. Abstract is owner-operated. It's owner has been in the security/IT industry for over 20 years and makes extra effort to take care of the customer. At Abstract we are committed to partnering with the client to provide the most comprehensive system within the constraints determined.
"Good work and exceptional"
Satish A on April 2025
Abstract Security Solutions prides itself on professional security camera installations for both residential and commercial use. We work closely with the client to determine what the immediate concerns are and from there we are able to design and implement a custom system with a one time cost. No monthly charges. All work is guaranteed and we offer 2 year warranty on most equipment. Abstract also offers system leasing on case by case basis. All camera systems have the ability to be viewed through stationary monitors placed on site, and/or remotely through mobile devices or PC. Our cameras are of the highest quality and are rated for indoor and outdoor use. We have access to a wide range of cameras with options to fit any situation including night vision capabilities. Abstract is owner-operated. It's owner has been in the security/IT industry for over 20 years and makes extra effort to take care of the customer. At Abstract we are committed to partnering with the client to provide the most comprehensive system within the constraints determined.
"Good work and exceptional"
Satish A on April 2025
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
Locally owned & family operated. Additional contact names - Richard G Lohfeld Sr and Richard G Lohfeld II. Providing your security needs since 1978. We are one of the only alarm companies that have earned: - "Top Rating for Quality" - The Washington Consumer Checkbook
"Outstanding! Richard was super professional and patient. He delivered a very high-quality system and was very generous with his time teaching us how to use it. Cannot say enough good things about Maximum Security!!"
Patrick N on September 2024
Locally owned & family operated. Additional contact names - Richard G Lohfeld Sr and Richard G Lohfeld II. Providing your security needs since 1978. We are one of the only alarm companies that have earned: - "Top Rating for Quality" - The Washington Consumer Checkbook
"Outstanding! Richard was super professional and patient. He delivered a very high-quality system and was very generous with his time teaching us how to use it. Cannot say enough good things about Maximum Security!!"
Patrick N on September 2024
As a locally owned and operated Electrical Contractor business we feel invested in our clients and constantly strive for customer satisfaction. Call or message us to schedule an estimate today!
"Eric and his team did an amazing job. They were very helpful. Getting all the required permits in calvert county. Eric talked to the electric company to get evetlrything scheduled. When the job was done he contacted the office for inspection. All we had to do was sit back and wait."
Donald L on April 2025
As a locally owned and operated Electrical Contractor business we feel invested in our clients and constantly strive for customer satisfaction. Call or message us to schedule an estimate today!
"Eric and his team did an amazing job. They were very helpful. Getting all the required permits in calvert county. Eric talked to the electric company to get evetlrything scheduled. When the job was done he contacted the office for inspection. All we had to do was sit back and wait."
Donald L on April 2025
We are a family owned business since 1983. We offer everything electrical for services in your home. We take customer satisfaction to the next level in making sure all our customers are happy and satisfied with their project needs. Our technicians take pride in doing a clean and affordable job to insure your not only happy with our services but want to use us again on any future projects you may want. Our estimates are free and our prices are extremely competitive.
"Great job helping sort out the open neutral I had. I was able to get the new wire, breaker, and outlets installed so the electronics are isolated on their own circuit. Thanks again."
Werter A on April 2025
We are a family owned business since 1983. We offer everything electrical for services in your home. We take customer satisfaction to the next level in making sure all our customers are happy and satisfied with their project needs. Our technicians take pride in doing a clean and affordable job to insure your not only happy with our services but want to use us again on any future projects you may want. Our estimates are free and our prices are extremely competitive.
"Great job helping sort out the open neutral I had. I was able to get the new wire, breaker, and outlets installed so the electronics are isolated on their own circuit. Thanks again."
Werter A on April 2025
Experienced, quality and affordable Electricians servicing the Washington, DC. Metro Area. We offer same day service, 24 hour emergency service, and free estimates. No job is too small, we are troubleshooting experts, our services include but not limited to, generators, panel upgrades, ceiling fan installation, outlet replacement, track lighting, security lighting, recess lighting, appliance wiring, exterior lighting, pool & hot tub wiring, exhaust fans and much more.
"Kevin Williams was sent to repair problems created by another electrician hired by Kitchen Saver during an expansive kitchen re-face and cabinet installation. Among other things, he re-located an unsightly transformer that had been previously secured to the inside of the first shelf of a main kitchen cabinet to a lower cabinet out of sight. Voila! Then, he re-routed unsightly wiring previously clamped to the far corner of a glass display cabinet so that it was out of sight. These were difficult puzzles to solve, as the new cabinets had already been installed and there was no longer easy access. Kevin was friendly, professional, and experienced! Great job!"
NINA A on August 2022
Experienced, quality and affordable Electricians servicing the Washington, DC. Metro Area. We offer same day service, 24 hour emergency service, and free estimates. No job is too small, we are troubleshooting experts, our services include but not limited to, generators, panel upgrades, ceiling fan installation, outlet replacement, track lighting, security lighting, recess lighting, appliance wiring, exterior lighting, pool & hot tub wiring, exhaust fans and much more.
"Kevin Williams was sent to repair problems created by another electrician hired by Kitchen Saver during an expansive kitchen re-face and cabinet installation. Among other things, he re-located an unsightly transformer that had been previously secured to the inside of the first shelf of a main kitchen cabinet to a lower cabinet out of sight. Voila! Then, he re-routed unsightly wiring previously clamped to the far corner of a glass display cabinet so that it was out of sight. These were difficult puzzles to solve, as the new cabinets had already been installed and there was no longer easy access. Kevin was friendly, professional, and experienced! Great job!"
NINA A on August 2022
We are a family owned and operated business that has been serving the Baltimore, Washington Metropolitan area since 1925. We are committed to providing superior electrical services. The valuable advantages we can offer you are great service, high quality and experienced workers at a competitive price.
"Do not use this company. They will rip you off. The contract was for eight 300W LED 40 ft pole lights, but I caught them redhanded installing 240W. Who does that? Then, they broke my lock and broke into my sprinkler room which I saw on my video which they admitted. Then, Kolb sued me for not paying the bill which I disputed due to lost tools as result of the break-in. Who does that breaking into a customer's sprinkler room and not informing that they did. I had to catch them on my video. Not only that it took over one year to the work proposed work. TOTAL FRAUD. I will be going to court...."
John A on November 2023
We are a family owned and operated business that has been serving the Baltimore, Washington Metropolitan area since 1925. We are committed to providing superior electrical services. The valuable advantages we can offer you are great service, high quality and experienced workers at a competitive price.
"Do not use this company. They will rip you off. The contract was for eight 300W LED 40 ft pole lights, but I caught them redhanded installing 240W. Who does that? Then, they broke my lock and broke into my sprinkler room which I saw on my video which they admitted. Then, Kolb sued me for not paying the bill which I disputed due to lost tools as result of the break-in. Who does that breaking into a customer's sprinkler room and not informing that they did. I had to catch them on my video. Not only that it took over one year to the work proposed work. TOTAL FRAUD. I will be going to court...."
John A on November 2023
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.
Yes, a home security system can be worth it for your peace of mind alone, but it can also save you up to 20% on your home insurance. The insurance savings will help defray the initial setup costs and subscription costs over time. Locations with higher crime rates also make home security systems a valuable investment, but it ultimately depends on your personal preferences and asset values.
Yes, most states require HVAC technicians to be certified, and for good reason. Hiring an unlicensed HVAC technician could lead to poor quality work, costly future expenses, and potential code violations.
As you browse our pro listings, take note of the “Angi Approved” badge. Angi Approved businesses meet our standards for certification which include:
The owner, principal, or relevant manager passed a criminal background check
Required to have applicable state and local licenses
Maintain an average star rating of 3.0 or better on our network, if they have at least one review
Paying to advertise their services
Meeting any other eligibility criteria required by Angi
Keep in mind licensing is different from certifications. A license is a legal requirement to operate a business, while certifications are voluntary.
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.