About

One Service Pros

Are you searching for a company that specializes in HVAC, plumbing, and electrical services? One Service Pros can handle nearly any home comfort request you may have for our team of trained, experienced, and friendly experts. We happily serve Knoxville, Maryville, Sevierville, Seymour, and the surrounding areas of Tennessee.

Learn More About One Service Pros

The story of One Service Pros starts in 2019 when Janet Livingston had the desire to utilize her call center agents better. Originally founded as One Electric and One Home & Safety, Livingston expanded her services to include plumbing and combined them under one umbrella to form One Service Pros. Today, the company handles HVAC, plumbing and electrical requests for customers in the greater Knoxville area.

24/7 Residential HVAC Services in Knoxville, TN

Most HVAC companies don’t offer electrical and plumbing services. That’s what makes One Service Pros so unique. We know how to install, repair, and maintain all the most essential systems in your home to keep you comfortable and safe, including:

  • Air Conditioning Installations, Repairs, and Maintenance
  • Furnace Installations, Repairs, and Maintenance
  • Heat Pump Installations, Repairs, and Maintenance
  • Ductless HVAC Installations, Repairs, and Maintenance
  • Indoor Air Quality Solutions
  • Control and Thermostat Sales, Installations, and Repairs
  • Electrical: Ceiling Fans, Dedicated Circuits, Lighting, and More
  • Plumbing: Drain Cleaning, Leak Detection, Repiping, and More
  • Water Heater Installations, Repairs, and Maintenance

One Service Pros: A Trustworthy HVAC, Plumbing, and Electrical Company

Your HVAC, plumbing, and electrical systems must function properly for your peace of mind. At One Services Pros, our job is to make sure that happens. Here’s why home and business owners in the greater Knoxville area continue coming to us:

  • Woman-Owned Small Business That Offers a Money-Back Guarantee
  • Provide Fast, Reliable, and Affordable HVAC, Plumbing, and Electrical Services
  • Work According to Our Slogan, “One Call, We Can Do It All!”
  • Believe in Kindness, Ambition, Communication, Accountability, and Integrity
  • We Guarantee All Our HVAC, Plumbing, and Electrical Work Will Last for One Year
  • 24/7 Emergency Service Offered With No Additional Charge for HVAC
  • Can Install or Repair Nearly Any System in Your Home or Business
  • Send Uniformed Employees Who Won’t Block Your Driveway
  • Carrier Dealer That Carries and Installs the Most Advanced HVAC Systems

To schedule HVAC, plumbing, or electrical services in Knoxville, Maryville, Sevierville, Seymour, or the surrounding areas in Tennessee, contact One Service Pros. Our team is standing by to complete the job at your home or business to your satisfaction.

FAQs

At One Service Pros, we aim to provide clarity and insight into common questions related to home plumbing, electrical, and HVAC services. We understand the importance of well-informed decisions when it comes to maintaining and enhancing your home. Our frequently asked questions (FAQs) have been thoughtfully curated to address a variety of concerns, offering valuable information to empower homeowners to make informed choices. Backed by a knowledgeable staff and a wide range of services, One Service Pros is committed to ensuring that your home remains a haven of comfort.


Our FAQs cover a spectrum of topics related to plumbing, electrical, and HVAC services, reflecting our dedication to transparency and customer satisfaction. At One Service Pros, our knowledgeable staff is well-equipped to address your concerns and guide you through the intricacies of home service solutions. With a diverse array of services at our disposal, we are not only committed to resolving issues promptly but also to empowering you with the information needed to make informed decisions about your home.

  • What is the SEER Rating?

    The SEER (seasonal energy efficiency ratio) measures the efficiency of your air conditioner or air-source heat pump. The SEER is the cooling output over a particular season divided by the total energy used in that same period. The higher the SEER, the greater the efficiency level of that cooling system.

  • Why is the SEER rating on the Energy Guide different from what my dealer quoted?

    Each split system cooling unit has a nominal SEER rating. For a higher rating, your HVAC contractor can provide advice about an upgrade. The SEER rating of a system is based on the combination of equipment installed in the home. The outdoor equipment (heat pump or air conditioner), as well as the indoor equipment (evaporator coil and furnace or air handler), play a vital role in the total rating.

  • Why do I need regular (or preventive) HVAC maintenance?

    Your heating and cooling systems work incredibly hard to perform their functions. The constant stopping, starting, and general operation can wear down any machine. Proper care and maintenance help to keep these systems in optimum condition and ward off malfunction. By scheduling regular maintenance, you can maximize the life of your heating and cooling units and guard against common equipment failures. Preventive maintenance inspections performed in spring for your AC and fall for your heater can uncover leaks, rust, rot, soot, frayed wires, and corroded electrical contacts. Regular maintenance will ensure maximum efficiency and prevent other problems.

  • Which equipment requires regular (or preventive) maintenance?

    All heating and cooling equipment require annual professional tune-ups. Inspections on boilers and furnaces should include ductwork, pipes, dampers, valves, the chimney, registers, radiators, pumps, blowers, fuel lines, and the oil tank. Heat pump and air conditioning unit inspections should also include an examination of the fan, compressor, indoor coils, outdoor coils, and refrigerant lines.

  • I need help troubleshooting a problem with my equipment.

    The professionals at One Service Pros are your troubleshooting experts, and we are glad to help you with any problem you may experience with your HVAC system. We provide informative blogs and articles on our website that address many common HVAC concerns. You may also call our office during regular business hours for more information. If you experience an HVAC crisis after hours, you can contact one of our on-call technicians for 24-7 emergency service.

  • What are the advantages of a programmable thermostat?

    Programmable thermostats are more accurate and efficient than thermostats that contain mercury. With a programmable thermostat, you can program settings in advance so that you can control the temperature at different times of the day. You will never have to worry about remembering to adjust the settings manually. You can save money on energy bills without sacrificing comfort by scheduling your programmable thermostat to a higher or lower temperature based on your weekday work hours. A One Service Pros technician will gladly walk you through how to use your programmable thermostat.

  • What type of filter should I use? And how often should I replace it?

    Standard filters work to keep your system and its ductwork clean, but they can only do so much to improve indoor air quality. A media air cleaner does a much better job of trapping small particles. It rests between the main return duct and the blower cabinet and will improve dust and particle removal up to seven times more effectively than a standard filter. Upgrading to a pleated media filter will remove everything from dust to airborne viruses from the filtered air. Always choose a filter that matches your blower’s capacity. We recommend replacing your disposable filters at least once a month for optimal efficiency and filtration. If you have washable filters, you should clean them once a month during periods of heavy use.

  • Why can’t I find the correct size furnace filter at my local home improvement store?

    Filters for your unit may be made specifically for its brand. These filters may be made of different or higher-quality materials than those of the disposable filters found in retail stores. Check with your local dealer to find the appropriate filter for your air conditioner. However, keep in mind that some filters are reusable and can be washed by hand in cold water.

  • What size of HVAC equipment is right for my home?

    Many factors affect the sizing and specifications of your system, including square footage, insulation, window surface, and configuration, geographic location of your home, and duct sizing and arrangement. A technician from One Service Pros can perform an in-home load analysis to determine which equipment combinations will perfectly suit your home and your family’s needs. Depending on the construction of your home, one (1) ton of air conditioning can cool anywhere from 300 to 800 square feet. You can ensure that the system you purchase is the right size and not smaller or larger than you require by having your heating and cooling needs evaluated by a licensed professional.

  • What is the life expectancy of my unit?

    HVAC systems last an average of 10 years. However, for your equipment, it may differ. Variables that affect life expectancy include the type of system, climate, and the regularity of routine maintenance.

Contact One Service Pros for Comprehensive Home Services in Seymour, TN

One Service Pros stands as a reliable partner in ensuring the seamless functioning of your home’s plumbing, electrical, and HVAC systems. Our commitment to transparency and customer satisfaction is evident in the detailed information provided in our FAQs. However, if you find yourself with specific queries not addressed on this page, we invite you to reach out to our expert team.


One Service Pro is poised to meet the diverse needs of homeowners in Seymour, TN, and beyond with a comprehensive range of services, including:

  • AC Repair, Installation, and Maintenance
  • Heating Repair, Installation, and Maintenance
  • Bathroom and Kitchen Plumbing Services
  • Drain Cleaning and Repair Services
  • Indoor Air Quality Solutions
  • Water Heater Repair and Installation
  • Residential Electrical Services
  • Sewer Repair Services
  • Repiping Services
  • And More!

At One Service Pros, we understand that every home is unique, as are its maintenance requirements. Our dedication to excellence extends beyond addressing common questions — we strive to provide tailored solutions that cater to the specific needs of your home. Whether you’re inquiring about our HVAC financing options, seeking advice on electrical upgrades, or needing urgent plumbing repairs, One Service Pros is your trusted partner in comprehensive home services. Contact us today for answers to your specific questions, and let us contribute to the continued comfort and functionality of your home.

Our Service Area

If you’re looking for a company that specializes in HVAC, electrical, and plumbing, you’ve clicked to the right place. At One Services Pros, we don’t only install and repair air conditioners and heaters. We know how to work on the most essential HVAC, electrical, and plumbing systems in your home, helping you cut the cost of comfort and providing you peace of mind in the process. When you hire us to visit your home or business in the greater Knoxville area, you’ll receive fast, reliable, and affordable services.

Knoxville, TN

Do you live in Knoxville, TN, and need an HVAC installation or electrical repair? One Service Pros carries and installs various HVAC systems, including central air conditioners, furnaces, heat pumps, and ductless mini-splits. We repair electrical components like ceiling fans, dedicated circuits, and lighting. We’re a woman-owned small business that offers a money-back guarantee, and we believe in kindness, ambition, communication, accountability, and integrity. When home and business owners in Knoxville, TN, need HVAC, electrical, and plumbing services, they turn to the experts at One Service Pros.

Maryville, TN

One Services Pros offers plumbing services to homeowners in Maryville, TN, and the surrounding areas. We specialize in drain cleaning, leak detection, and repiping. If you need a plumbing appliance installed, repaired, or maintained, we can help. For your peace of mind, we guarantee all our HVAC, electrical, and plumbing work for one year. We send uniformed employees who won’t block your driveway, and we can install or repair nearly any system in your home or business. Don’t neglect your plumbing system and allow minor issues to become major problems. We’re your go-to plumbing experts.

Sevierville, TN

Is your HVAC system not functioning as it should? One Service Pros offers 24/7 emergency services in Sevierville, TN, with no additional charge for HVAC repairs. Our pros know how to repair central air conditioners, furnaces, heat pumps, and ductless mini-splits. When we visit your home or business for a heating or air conditioning repair, rest assured we’ll respect your time and property. We work methodically to ensure our HVAC repairs last a long time. The last thing we want is for you to call us back shortly after because the repair didn’t fix the problem. We guarantee all HVAC repairs for one year.

Seymour, TN

Maintaining a healthy level of indoor air quality is vital for your respiratory health. Allowing contaminants to collect in your HVAC system and recirculate in your home dozens of times per day will eventually make you and your loved ones sick. One Service Pros offers all the indoor air quality devices you need to filter and freshen your home’s air quality. We’re happy to serve homeowners in Seymour, TN.


To schedule HVAC, electrical, or plumbing services in Knoxville, Maryville, Sevierville, Seymour, or the surrounding areas in Tennessee, contact One Service Pros. We look forward to helping you take your indoor comfort to the next level of efficiency.

Community Involvement

6 January 2025
The thing about standing up a new company is that, nowadays, Googling your own business comes with being bombarded by ads from all the other acts in town. It can seem that competition is everywhere, but with a little bit of market research, it was proven that the time is right – right now – to introduce ourselves in a big way around Knoxville. So, we’re doing it! Brand awareness campaign engage! With ONE Service Pros year one in the books, the next steps of our marketing strategy had been designed for incremental growth in multiple avenues of advertising, but then the pandemic shook the nation. Quarantine altered life for many homeowners now staying home for months, relying on home systems more often, noticing necessary repairs and desired upgrades, spending stimulus checks on home improvement, and spending more time in front of the TV. So, that’s where we’re going. During commercial breaks on cable TV— like HGTV, and ESPN, and Say Yes to the Dress— Knoxville will be meeting us in a big way! We’re telling the story of one fated day when ONE Service Pros came to the rescue of a family whose lovely Seymour home needed a lot of help right away.
6 January 2025
In early 2019, Janet Livingston, owner of Seymour-based Call Center Sales Pro was looking for an electrician in the area but over and over she encountered companies that were not delivering the reliable service that she expected. Janet decided that, since she couldn’t find what she wanted, she would leverage her business know-how to launch an electric service company that met her expectations of quality, affordability, and reliability. One Electric was born. During the next year, Janet saw additional needs in other areas: a need for home security monitoring became One Home & Safety. When Janet decided to add plumbing as well as heating and cooling (HVAC) services, the original two brands merged, adding the additional services and ONE Service Pros was born. Janet has always operated Call Center Sales Pro with a customer-first approach, taking the time to build rapport with each of her clients and customers to understand their needs fully. This carries over into ONE Service Pros where she has employed a service team that takes the time to approach customers with care and consideration that go above and beyond, establishing a standard of excellence. From installing a light switch to responding to an emergency repair from storm damage, when someone in the community needs help, ONE Service Pros was built from the ground up to respond 24/7 — making them the only four vertical service company with the capacity to act in the greater Knoxville area. A customer that sustained storm damage on Christmas eve and needed emergency service shared, “we had a tree fall on our power line and ONE Service Pros was able to come out during a snow storm on Christmas Eve and get us set up so the power company could reattach the line. They were extremely professional, friendly, on-time, and efficient. I had to call back after hours to get a second copy of my receipt for the insurance company and had a detailed invoice in my inbox seconds after hanging up.” ONE Service Pros has grown into a company that is a central solution for any problem. Boasting a motto of “ONE call, we can do it all!” our goal is to always be able to say, “yes, we can help” when someone calls with a need — and that has shown in the ways that ONE Service Pros has grown. Our team is constantly evaluating potential needs in the community and will add services as they are identified. ONE Service Pros was built to evolve constantly to meet shifting demands of households and business. Going above and beyond isn’t exclusive to the service that we perform onsite but starts with the care that we give answering our phones, scheduling appointments, the promptness that we address your issues with, and continues through to being pleasant and personable as we deliver the service that you requested. Our customers come back time and again to share their great experiences: “Our techs were fantastic! They came out and hooked up a 100amp sub panel in my garage in no time. I am a people person myself and pretty much to hung out outside chatting with them like we were life long friends. I will use these two again for sure and feel like I might have actually built a friendship out of this. 10/10 would highly recommend.” “The tech fixed the problem quickly and efficiently. He even took the time to clean the light switch and the floor where he was working. Great service! Highly recommend this company.” “I tried to install some smart light switches, but it was over my head. I called ONE Service Pros and a tech was at my house in the next 2 hours. The tech was very professional and kind. He hooked up all of my light switches quickly and perfectly. I would highly recommend to homeowners. Very affordable.” Because of our exceptional standard of service, ONE Service Pros has been honored to earn repeat business and continues to be flooded with reviews from customers with generous and kind words about their experiences: “We have used ONE Service Pros twice – once for plumbing and once for electrical, each time at a different property. Both times, the technician has been knowledgeable, friendly, and helpful. Definitely quality service that we will be using again!” “The tech did a great job relocating some GFI outlets for us. He even noticed one needed to be moved to meet code that we weren’t aware of. He was on time, professional and friendly. We’ve always had great experiences with this company and this was no exception. Highly recommend!” We continue to be humbled and honored by the community that continues to trust us with big and small projects in their homes and businesses. Whether we are replacing a light switch, clearing a clogged drain, adjusting a thermostat or a bigger project like rewiring a house or installing a new furnace or air conditioner, we are grateful each time our phone rings. “When we started providing electric services, we knew there was a need for reliable and reasonable service,” Janet shared. “What we’ve experienced, though, goes well beyond our wildest dreams. We are grateful to our friends and neighbors in Seymour and beyond who have trusted us and continue to welcome us into their homes for electrical, plumbing, heating, air conditioning, and home security.” “We have a growing appreciation for our office staff and the exceptional tradespeople that come to work day after day, delivering exceptional service, and continuing to make us look good in big and small ways. We could never imagine what this would become and we would not be where we are without each of you.” Because of the great work of our team and the customers that continue to share their great experiences, we have been honored to be recognized as a Home Advisor Elite Service Provider and have received a number of awards including the Angie’s List 2020 Super Service Award, the Knoxville Chamber of Commerce 2019 Pinnacle Award for Women-Owned Business Excellence, the Bronze 2020 Stevie Award for Women In Business, and placed on the Inc. 5000 list at number 1711. We are excited to see what the next year brings as we continue to serve our community. THANK YOU doesn’t begin to capture our gratitude for how Seymour and beyond have welcomed us. Here’s to each of you!
6 January 2025
ONE Service Pros is proud to announce that it has earned the home service industry’s coveted Angie’s List Super Service Award (SSA). This award honors service professionals who have maintained exceptional service ratings and reviews on Angie’s List in 2020. 
6 January 2025
Earlier this month our team again partnered with the Boys & Girls Club of the Smoky Mountains. “Our team always loves golfing with the Boys & Girls Club,” shared Janet Livingston, owner of One Service Pros. “Everyone gets really competitive and the gloating continues back in the office for weeks. None of them are out there shooting like Tiger Woods but everyone gets a lucky shot in at some point!” With a mission dear to Janet’s heart, One Service Pros returned to sponsor the 16th annual Play FORE The Kids Golf Tournament to support the many programs that the Boys & Girls Club offer to serve the youth in Sevier county. Through art, education, health & physical fitness, social enrichment, teen focused programs, the Boys & Girls Club boasts that when school is out, Clubs are in! As a mother, a grandmother, and community member proud to invest to our region, Janet knows the value of sharing time and resources into the next generation. “Giving these kids the tools to succeed so that they can grow up and give back to their communities is a gift that keeps on giving. Really, the part that we’re doing is so small – but the return on that investment is invaluable.” Volunteers engage K-12 students in a broad variety of programs that not only enrich the children in our community, but it’s also fun! To learn more about their programs, visit their site here & check out the pictures below to see our team in action at the tournament!
6 January 2025
​When Janet Livingston saw a need for electricians locally in early 2019, she could have never imagined what would lie ahead in the upcoming year. ​ Janet, already the owner and CEO of a consulting business and several telephone answering service companies, never shies away from delivering anywhere there is a need. Never afraid of blazing new trails, Janet eagerly listens to the problems her clients and community faces and matches them with right-sized solutions – even if it means figuring out how to do it herself. “It all started when I was struggling to find a responsive electrician for time sensitive projects that I needed to get done,” Janet shares. At first I got frustrated – I didn’t think it should be difficult to find something as basic as an electrician. But then I thought, ‘I’m a business woman – I can figure this out!'” And that’s exactly what happened when Janet filed the papers to incorporate One Electric in March 2019. Except that Janet quickly learned that her local community didn’t just need a reliable electrician and the security installation and monitoring company that she had also started, there was also a need for a reliable plumber and HVAC service. By the end of 2019, One Electric had evolved into ONE Service Pros and was serving both residential and commercial customers across four trades in Sevier and Knox counties in the greater Knoxville area from her fleet of 12 work trucks. Riding the initial wave of success of launching the multi-trade service company, Janet was determined for ONE Service Pros to become a household name in her community. Through networking events, social media, charity partnerships, fresh graphics on her fleet, even billboards and television commercials – ONE Service Pros was being welcomed into more and more homes. Even as the world faced uncertainty, Janet insured that her crew was equipped to continue to serve the greater Knoxville area safely with the same level of professionalism that they’d come to be known for. Not only did the community continue to take notice of this reliable and affordable company – but Janet’s entrepreneurial spirit also caught attention. In July 2020, Janet was nominated for the Stevie Award’s Woman Entrepreneur of the Year. Even though Janet has collected a number of awards for businesses throughout her decades-long career, this one felt special. Expertise in telephone answering service – not in home services – is what makes this nod so significant. She jumped in, feet first, and navigated unfamiliar territory. Along the way, with her talented team firmly behind her vision, she’s become Angie’s List Certified, a HomeAdvisor Elite Service Provider, and was awarded the Knoxville Chamber of Commerce 2019 Pinnacle Award for Woman-Owned Business Excellence. “While only 7% of HVAC company owners in the United States are women,” noted a Stevie Awards judge, “Janet has ventured into this male-dominated industry with the spirit of an entrepreneur. Armed with the knowledge of how to plan, train, invest, organize and market from her service and consulting business, she’s positioned to leverage her experience to develop effective systems and efficiencies to grow and sustain profitability.” “Our customers continuously rave about the excellent service from our pros,” shares Lisa Phillips, VP of Operations. “Nearly every day we have someone sharing a great review with us and our phones ring with new customers that were referred by their friends.” From preventative maintenance to major repairs, ONE Service Pros customers are overwhelmingly pleased with their experience. Today we are thrilled to share that the Stevie Awards have named Janet Livingston as a winner of the Bronze Stevie Award in the category of Female Entrepreneur of the Year. Though the focus of ONE Service Pros has been and will continue to be serving our community well, it’s always nice to be noticed for achieving those things. Please join us in sharing a word of congratulations to Ms. Janet for her leadership and accomplishments. Special kudos to our amazing staff and exceptional team of pros that show up every day and reflect our company values so well. And to each of you – our customers – without your support, we could have never gone from an idea to a fleet of 12 vehicles in a year. We can’t wait to see what the next year brings!

Learn More

Can’t find what you’re looking for? Simply call our friendly staff at 865-351-0241.

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