Our old heat pump was at least 20 years old. We were using Mountain Air for repairs, trying to keep it going. (I put everything off as long as possible.) Our electric bill was outrageous. The last service call they made, the serviceman told us, you'd be better off to replace it, it's old,...

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TRUSTED BY MOUNTAIN CITY, TN HOMEOWNERS
4.6
Average homeowner rating23
Verified security door installation services reviews
Security Door Installation reviews from real Angi homeowners in Mountain City, TN
Last update on October 14, 2025
- Mike B.
- Virginia P.
They came out and measured my doors and I asked him to give me a couple of days to think about it. I later called him and ordered the doors on 3/1. He told me it would take about ten days to get them in. I waited until the 11th day and called them when I did not receive them. They told me...
Find Security door installation pros in Mountain City

ADT
ADT
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
VELUX America
VELUX America
Start with skylights! At VELUX, our mission is clear: we're dedicated to transforming your space with natural light and fresh air with skylights. Whether you're looking to replace old skylights or install brand-new ones, we will guide you every step of the way. Why Choose VELUX? =================== When it comes to skylights and roof windows, VELUX is the global leader. Here's why you should trust us to transform your home: 1. Innovation and Quality: VELUX skylights are renowned for their innovation and unmatched quality. They're designed to let in abundant natural light while keeping your space leak-free and energy-efficient. 2. Huge Product Selection: You’ll have access to a wide range of skylight options, from fixed to vented skylights. And we are here to help tailor the selection to suit your specific needs and style preferences. 3. Expertise: We take pride in what we do at VELUX, and our team is highly trained to guide you through the entire process. From selecting the perfect product for your space to providing valuable recommendations, we're committed to making sure your skylight project is a complete success. 4. Professional Installation Partners: We don't stop at product selection and recommendations; we also match you with a VELUX-trained installer who will handle the installation of your skylights with precision and expertise.
Start with skylights! At VELUX, our mission is clear: we're dedicated to transforming your space with natural light and fresh air with skylights. Whether you're looking to replace old skylights or install brand-new ones, we will guide you every step of the way. Why Choose VELUX? =================== When it comes to skylights and roof windows, VELUX is the global leader. Here's why you should trust us to transform your home: 1. Innovation and Quality: VELUX skylights are renowned for their innovation and unmatched quality. They're designed to let in abundant natural light while keeping your space leak-free and energy-efficient. 2. Huge Product Selection: You’ll have access to a wide range of skylight options, from fixed to vented skylights. And we are here to help tailor the selection to suit your specific needs and style preferences. 3. Expertise: We take pride in what we do at VELUX, and our team is highly trained to guide you through the entire process. From selecting the perfect product for your space to providing valuable recommendations, we're committed to making sure your skylight project is a complete success. 4. Professional Installation Partners: We don't stop at product selection and recommendations; we also match you with a VELUX-trained installer who will handle the installation of your skylights with precision and expertise.

Universal Property Improvements
Universal Property Improvements
We specialize in electrical and gas services, repairs, installs, troubleshooting, lighting, panel upgrades, ceiling fans, EV/Electric Charging Stations, 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 a free estimate today!
We specialize in electrical and gas services, repairs, installs, troubleshooting, lighting, panel upgrades, ceiling fans, EV/Electric Charging Stations, 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 a free estimate today!

SafeStreets - ADT Authorized Provider
SafeStreets - ADT Authorized Provider
For 140 years, ADT has been the leading home security provider in the country. SafeStreets, ADT's Authorized Provider, sells and installs ADT-monitored home security systems. Our team consists of 300+ trained consultants, covering more than 90% of the United States across 44 states. We are experts on the latest smart-home technology, and highly focused on giving all customers a 5-Star Experience™. SafeStreets is committed to bringing high-tech security equipment, backed by 24/7 professional monitoring, to the place that matters most - your home. We have same day and next day appointments available, all scheduled within a one hour window. Call us anytime for a custom home security assessment and free quote! Comprehensive Security System ADT 24/7 Monitoring Touch Screen Control Panel Motion Detectors, Glass Break Sensors, & Point-of-Entry Sensors Indoor, Outdoor, & Doorbell Cameras Smart Home Automation Smoke, Carbon Monoxide, & Flood Sensors Mobile App Control Cellular Connection Back-up Battery Supply Maintenance/Extended Warranty Homeowners Insurance Certificate Theft Protection Guarantee
"I regret ever choosing SafeStreets. The whole process was frustrating from the start. The technician who came to install the system was late, didn’t answer my questions properly, and left my house a mess. When I reached out to customer service, I was put on hold for over an hour, only to get a half-baked answer. Save yourself the trouble and look elsewhere."
Jessica S on October 2025
For 140 years, ADT has been the leading home security provider in the country. SafeStreets, ADT's Authorized Provider, sells and installs ADT-monitored home security systems. Our team consists of 300+ trained consultants, covering more than 90% of the United States across 44 states. We are experts on the latest smart-home technology, and highly focused on giving all customers a 5-Star Experience™. SafeStreets is committed to bringing high-tech security equipment, backed by 24/7 professional monitoring, to the place that matters most - your home. We have same day and next day appointments available, all scheduled within a one hour window. Call us anytime for a custom home security assessment and free quote! Comprehensive Security System ADT 24/7 Monitoring Touch Screen Control Panel Motion Detectors, Glass Break Sensors, & Point-of-Entry Sensors Indoor, Outdoor, & Doorbell Cameras Smart Home Automation Smoke, Carbon Monoxide, & Flood Sensors Mobile App Control Cellular Connection Back-up Battery Supply Maintenance/Extended Warranty Homeowners Insurance Certificate Theft Protection Guarantee
"I regret ever choosing SafeStreets. The whole process was frustrating from the start. The technician who came to install the system was late, didn’t answer my questions properly, and left my house a mess. When I reached out to customer service, I was put on hold for over an hour, only to get a half-baked answer. Save yourself the trouble and look elsewhere."
Jessica S on October 2025

Jonathan Ellison
Jonathan Ellison
I am 25 years old and am interested in expanding my general knowledge in a few other trades. I am reliable, trustworthy and always on time! I prefer quality over quantity! I believe if you start something you are to finish it.
I am 25 years old and am interested in expanding my general knowledge in a few other trades. I am reliable, trustworthy and always on time! I prefer quality over quantity! I believe if you start something you are to finish it.

Advanced Security Concepts
Advanced Security Concepts
Advanced Security Concepts proudly serves it's customers with pride, integrity and attention to the details that matter most to you. Your security is our priority. Give us a call today!
"Chris called me almost immediately after posting.He was on the job fast and was very knowledgeable and professional. He took care of the problem in a short time. I now know who to call for an alarm system or camera repair. I will not call anyone but this company from now on. Chris gave me options how to repair the problem and let me decide what I wanted to do. I had a great experience."
Frank M on October 2025
Advanced Security Concepts proudly serves it's customers with pride, integrity and attention to the details that matter most to you. Your security is our priority. Give us a call today!
"Chris called me almost immediately after posting.He was on the job fast and was very knowledgeable and professional. He took care of the problem in a short time. I now know who to call for an alarm system or camera repair. I will not call anyone but this company from now on. Chris gave me options how to repair the problem and let me decide what I wanted to do. I had a great experience."
Frank M on October 2025
R&M Building and Remodeling
R&M Building and Remodeling
We Provide High Quality Remodels, Repairs, and Renovations for Residential Homes and Commercial Properties. We also do Custom Deck Design and Construction. Privacy Fences. Patios. Sheds. Siding. Roof Repair. Retaining Walls and other Hard Scapes. We do it all!
We Provide High Quality Remodels, Repairs, and Renovations for Residential Homes and Commercial Properties. We also do Custom Deck Design and Construction. Privacy Fences. Patios. Sheds. Siding. Roof Repair. Retaining Walls and other Hard Scapes. We do it all!
Piper Construction
Piper Construction
Piper Construction is a construction company with many reliable relationships with trustworthy sub-contractors capable of completing any remodel work your house may need. Whether you need small house repairs, would love to update a bathroom or kitchen, or even if you want to flip your entire home, Piper Construction has the experience to do so. Our sister company, Piper Restoration, also has the capacity to handle any sort of fire, water, or mold remediation. Piper Construction has over 20 employees on staff, some with 15+ years of construction experience. We pride ourselves on our ability to communicate and run our projects efficiently, providing weekly deadlines so you are fully aware of our process. Our estimators have years of experience, so you know you are guaranteed the true price of your project, and our first quote is always free. Along with this, our foremen are developed within our company, and we provide them proper resources in order to run projects to the best of their ability. With the team we have, we can guarantee the job will get done how it needs to be done, and we may even make some friends along the way.
Piper Construction is a construction company with many reliable relationships with trustworthy sub-contractors capable of completing any remodel work your house may need. Whether you need small house repairs, would love to update a bathroom or kitchen, or even if you want to flip your entire home, Piper Construction has the experience to do so. Our sister company, Piper Restoration, also has the capacity to handle any sort of fire, water, or mold remediation. Piper Construction has over 20 employees on staff, some with 15+ years of construction experience. We pride ourselves on our ability to communicate and run our projects efficiently, providing weekly deadlines so you are fully aware of our process. Our estimators have years of experience, so you know you are guaranteed the true price of your project, and our first quote is always free. Along with this, our foremen are developed within our company, and we provide them proper resources in order to run projects to the best of their ability. With the team we have, we can guarantee the job will get done how it needs to be done, and we may even make some friends along the way.
Kst
Kst
We love to bring your dreams to reality with our work We do all remolding needs from kitchens bathrooms decks patios garages electrical plumbing framing windows ect We take pride in our work give us a call if you if you want them dreams to come true
We love to bring your dreams to reality with our work We do all remolding needs from kitchens bathrooms decks patios garages electrical plumbing framing windows ect We take pride in our work give us a call if you if you want them dreams to come true
The Window Source of the Tri Cities
The Window Source of the Tri Cities
The Window Source believes that local, family-owned businesses, supported by industry leaders with more than 40 years of operating experience, are an ideal combination for a company that values providing high-quality customer service, and exterior home improvement products at the best prices possible. The Window Source of the Tri Cities is owned and operated by Duane and Sheila Luther. Duane has over 32 years of experience in the window business, from installing to selling to managing a multi-million-dollar company. His wife, Sheila, is quite knowledgeable in the construction industry, and manages the office. Our office staff are familiar with all our products and can answer questions in our showroom, located across from Tri Cities airport. Our Design Consultants are always happy to demonstrate our products in your home (at no cost!) and provide you with the best prices in the market. The service manager is well rounded in all construction trades. Our installers are professional, factory certified and highly qualified captured subcontractors - meaning that they work for The Window Source exclusively. You will not find a better team anywhere! We provide a lifetime warranty, in writing, for all of our products including windows, patio doors, entry doors, siding, and guttering. Here at The Window Source, we operate as a single unit in constant communication on your project, from the office staff to the installers. Your home matters to us!
"Great services and whenever I called to ask a question the receptionist was very nice and patient with me"
Jeremy R on January 2024
The Window Source believes that local, family-owned businesses, supported by industry leaders with more than 40 years of operating experience, are an ideal combination for a company that values providing high-quality customer service, and exterior home improvement products at the best prices possible. The Window Source of the Tri Cities is owned and operated by Duane and Sheila Luther. Duane has over 32 years of experience in the window business, from installing to selling to managing a multi-million-dollar company. His wife, Sheila, is quite knowledgeable in the construction industry, and manages the office. Our office staff are familiar with all our products and can answer questions in our showroom, located across from Tri Cities airport. Our Design Consultants are always happy to demonstrate our products in your home (at no cost!) and provide you with the best prices in the market. The service manager is well rounded in all construction trades. Our installers are professional, factory certified and highly qualified captured subcontractors - meaning that they work for The Window Source exclusively. You will not find a better team anywhere! We provide a lifetime warranty, in writing, for all of our products including windows, patio doors, entry doors, siding, and guttering. Here at The Window Source, we operate as a single unit in constant communication on your project, from the office staff to the installers. Your home matters to us!
"Great services and whenever I called to ask a question the receptionist was very nice and patient with me"
Jeremy R on January 2024
FAQs for security door installation projects in Mountain City, TN
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
Door installation usually takes three and four hours, including removing the old door and frame, fitting the new door and frame in place, shimming it to make sure it’s perfectly level, and making adjustments to the hinges and locking mechanisms to ensure proper functionality. A door-hanging professional can replace an interior door in between one and two hours. Door installation will take significantly longer if your installer needs to create a wall opening, and it can take less time if the existing door frame remains.
The average cost to install a door is around $1,100, but you could pay anywhere from $150 for a hollow-core interior door installation up to $2,000 or a high-end exterior door installation. There are a few cost factors to consider to get an accurate price, including whether your wall opening exists, the type of door, the quality and security of the door, whether you need to replace the frame, and the door size. You can expect to pay $150 to $700 for a standard 36-by-80-inch door and between $400 and $1,600 for an 80-by-48-inch door.
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.
It’s possible to install a door yourself if the wall opening already exists, but the work is rather complicated, and a professional installation is usually well worth the investment. For your door to work and close properly, you’ll need to shim and level the door frame in your wall perfectly, which can be difficult. Additionally, we recommend you always hire a professional door installer to place an exterior door, as mistakes during the installation process can lead to poor security for your home.
The Mountain City, TN homeowners’ guide to security door installation services
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