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Central a/c service or repairers in Duluth
Hill HVAC is an owner operated repair and maintenance service. I am intent on getting your system fixed and earning your business. No nonsense or up selling. 15 yrs experience commercial and residential installation and troubleshooting. Call me directly 7702415023 anytime for estimates or advice.
"He fix the wiring and was helpful."
L F on December 2023
Hill HVAC is an owner operated repair and maintenance service. I am intent on getting your system fixed and earning your business. No nonsense or up selling. 15 yrs experience commercial and residential installation and troubleshooting. Call me directly 7702415023 anytime for estimates or advice.
"He fix the wiring and was helpful."
L F on December 2023
GRACE MAINTENANCE SERVICES is committed to excellence in every aspect of our business. We uphold a standard of integrity bound by fairness, honesty, and personal responsibility. Our distinction is the quality of service we bring to our customers. Accurate knowledge of our trade combined with ability is what makes us true professionals. Above all, we are watchful of our customers' interests, and make their concerns the basis of our business.
GRACE MAINTENANCE SERVICES is committed to excellence in every aspect of our business. We uphold a standard of integrity bound by fairness, honesty, and personal responsibility. Our distinction is the quality of service we bring to our customers. Accurate knowledge of our trade combined with ability is what makes us true professionals. Above all, we are watchful of our customers' interests, and make their concerns the basis of our business.
Since 1985, Keep Smiling Plumbing & Electric has been providing Gwinnett County and the surrounding community with any ad all of their plumbing needs. We pride ourselves on quality workmanship, provided by a friendly, licensed, plumbing professional, delivered on time, at a fair price. We are equipped to handle every residential and light commercial plumbing service, including plumbing repairs, drains, and water heater services. Our team of professionals is pre-scheduled from the office to guarantee convenient appointment times and a phone call when we are headed to your home. Your plumbing professionals are uniformed and arrive in a well-marked company vehicle. Our team members are prescreened, drug tested, and highly trained to ensure your experience is fast, effective, and affordable. We look forward to earning your business. -$39 Diagnostic Fee
"Robert Mullin did a great , efficient, job. Thank you"
Marcus S on January 2024
Since 1985, Keep Smiling Plumbing & Electric has been providing Gwinnett County and the surrounding community with any ad all of their plumbing needs. We pride ourselves on quality workmanship, provided by a friendly, licensed, plumbing professional, delivered on time, at a fair price. We are equipped to handle every residential and light commercial plumbing service, including plumbing repairs, drains, and water heater services. Our team of professionals is pre-scheduled from the office to guarantee convenient appointment times and a phone call when we are headed to your home. Your plumbing professionals are uniformed and arrive in a well-marked company vehicle. Our team members are prescreened, drug tested, and highly trained to ensure your experience is fast, effective, and affordable. We look forward to earning your business. -$39 Diagnostic Fee
"Robert Mullin did a great , efficient, job. Thank you"
Marcus S on January 2024
When it comes to the mechanics of your home, you need a knowledgeable, experienced, and qualified company to protect your family and make sure your heating and air conditioning systems run smoothly all around. We will take care of your repairs, your maintenance, and your installations, from thermostats to new central air units, so you can enjoy the comforts of your home worry free! Call us for your all of your heating and air conditioning needs.
"Did a through job"
Anthony G on May 2025
When it comes to the mechanics of your home, you need a knowledgeable, experienced, and qualified company to protect your family and make sure your heating and air conditioning systems run smoothly all around. We will take care of your repairs, your maintenance, and your installations, from thermostats to new central air units, so you can enjoy the comforts of your home worry free! Call us for your all of your heating and air conditioning needs.
"Did a through job"
Anthony G on May 2025
United Air Temp is committed to excellence in every aspect of our business. We uphold a standard of integrity bound by fairness, honesty, and personal responsibility. Our distinction is the quality of service we bring to our customers. Accurate knowledge of our trade combined with ability is what makes us true professionals. Above all, we are watchful of our customers' interests, and make their concerns the basis of our business.
United Air Temp is committed to excellence in every aspect of our business. We uphold a standard of integrity bound by fairness, honesty, and personal responsibility. Our distinction is the quality of service we bring to our customers. Accurate knowledge of our trade combined with ability is what makes us true professionals. Above all, we are watchful of our customers' interests, and make their concerns the basis of our business.
Casteel Heating, Cooling, Plumbing and Electrical is the company you can trust with your home service needs. We offer installation, repair and replacement services based on flat rate pricing and never any emergency fees. Our highly educated technicians pride themselves on their craftsmanship and customer service. Casteel offers industry leading warranties and guarantees to include our Amazing Care Guarantee. You get 5 star service or your service call is free! At Casteel we know your time and money are valuable, for this reason we provide you with the ability to track your technician right to your door. With fair pricing, top notch team members and our Amazing Care Guarantee, you will not go wrong with Casteel as your home services company of choice.
Casteel Heating, Cooling, Plumbing and Electrical is the company you can trust with your home service needs. We offer installation, repair and replacement services based on flat rate pricing and never any emergency fees. Our highly educated technicians pride themselves on their craftsmanship and customer service. Casteel offers industry leading warranties and guarantees to include our Amazing Care Guarantee. You get 5 star service or your service call is free! At Casteel we know your time and money are valuable, for this reason we provide you with the ability to track your technician right to your door. With fair pricing, top notch team members and our Amazing Care Guarantee, you will not go wrong with Casteel as your home services company of choice.
At BenLe Heating & Air, we appreciate the importance of cost-effectiveness, providing tailored installation and repair solutions.
"Perfectly. Ben is an expert at what he does. And he is a real professional. She answered all of my questions upfront. He showed up on time. He was very clear and detailed in his explanation of what his team would do and how the process would work. And most importantly, he delivered an excellent product and service on time. I probably will never use another vendor for the rest of my life."
Calvin T on December 2024
At BenLe Heating & Air, we appreciate the importance of cost-effectiveness, providing tailored installation and repair solutions.
"Perfectly. Ben is an expert at what he does. And he is a real professional. She answered all of my questions upfront. He showed up on time. He was very clear and detailed in his explanation of what his team would do and how the process would work. And most importantly, he delivered an excellent product and service on time. I probably will never use another vendor for the rest of my life."
Calvin T on December 2024
Peach State Air is here to bring comfort to you and your loved ones in your home. We offer yearly maintenance, service visits, and free estimates on any additions you are looking for on your system and new systems. Peach State Air is a family owned and operated business that is looking to make you and your family part of ours.
"The technician came out to do a full system maintenance. He was on time and so nice from the second I answered the door. The outdoor unit was filthy and he cleaned the coil which apparently helps the system run better. 5 stars hands down. Looking forward to our second visit later this year."
victoria s on June 2024
Peach State Air is here to bring comfort to you and your loved ones in your home. We offer yearly maintenance, service visits, and free estimates on any additions you are looking for on your system and new systems. Peach State Air is a family owned and operated business that is looking to make you and your family part of ours.
"The technician came out to do a full system maintenance. He was on time and so nice from the second I answered the door. The outdoor unit was filthy and he cleaned the coil which apparently helps the system run better. 5 stars hands down. Looking forward to our second visit later this year."
victoria s on June 2024
Southern Croc is proud to provide landscape construction service for your latest projects on your property. We work on fences, retaining walls, artificial turf, seasonal planting, paver patios, mulching, land clearing, and more. We strive to satisfy all of our customers and will go the extra mile to make sure you're completely satisfied. If you're looking for a company that provides premium products, outstanding service, and outstanding outcomes, then look no further than Southern Croc.
Southern Croc is proud to provide landscape construction service for your latest projects on your property. We work on fences, retaining walls, artificial turf, seasonal planting, paver patios, mulching, land clearing, and more. We strive to satisfy all of our customers and will go the extra mile to make sure you're completely satisfied. If you're looking for a company that provides premium products, outstanding service, and outstanding outcomes, then look no further than Southern Croc.
Dayco Systems has proudly served the Greater Metro Atlanta area since 2006. As an authorized dealer of Trane, Daikin, and Goodman, we deliver top-quality products backed by expert service. Our mission is to build lasting relationships in the community by delivering on every promise we make, accepting responsibility in everything we do, yielding maximum results with every resource, committing to putting the customer first, and remaining open to new ideas and innovation—these are the values that define DAYCO. We’re honored to have been voted Best of Cobb for 7 consecutive years since 2019 and named Best of Georgia in 2024—recognition that reflects our unwavering dedication to excellence, integrity, and customer satisfaction.
"Suzy, on the office staff, has been extremely helpful, pleasant and professional to communicate with regarding scheduling maintenance appointments & billing. She has been thorough in following up with me, which I have appreciated."
T E on September 2023
Dayco Systems has proudly served the Greater Metro Atlanta area since 2006. As an authorized dealer of Trane, Daikin, and Goodman, we deliver top-quality products backed by expert service. Our mission is to build lasting relationships in the community by delivering on every promise we make, accepting responsibility in everything we do, yielding maximum results with every resource, committing to putting the customer first, and remaining open to new ideas and innovation—these are the values that define DAYCO. We’re honored to have been voted Best of Cobb for 7 consecutive years since 2019 and named Best of Georgia in 2024—recognition that reflects our unwavering dedication to excellence, integrity, and customer satisfaction.
"Suzy, on the office staff, has been extremely helpful, pleasant and professional to communicate with regarding scheduling maintenance appointments & billing. She has been thorough in following up with me, which I have appreciated."
T E on September 2023
Central a/c service or repairs FAQs
Yes, a once-a-year tune-up keeps the system efficient and helps it last longer. During the visit, a technician cleans coils, checks electrical connections, and swaps or cleans the filter. Catching small issues now stops bigger, pricier failures later, so that a quick appointment saves money and stress over the life of the unit.
Changing your AC filter every 30 days is necessary to maintain optimal performance and high indoor air quality. Regular filter replacement prevents dust buildup, ensures efficient airflow, and protects the system from stress that could lead to costly repairs. This disciplined maintenance routine not only boosts energy efficiency but also prolongs the lifespan of your unit by safeguarding its critical components.
An HVAC service plan is worth the cost, especially if you forget to schedule maintenance on your own. A service plan locks in yearly (or twice-yearly) visits, allowing a professional to identify small problems early, clean key components, and maintain energy efficiency. Many plans also include minor repairs or priority scheduling, which can pay for themselves if an unexpected issue pops up.
In a pre-season service visit, your technician gives your system a top-to-bottom check before peak season hits. Expect a filter change, thermostat test, condenser-line flush, electrical-connection check, and coil cleaning. They also tighten loose parts and make minor adjustments so the unit fires up without surprises when temperatures swing. That quick tune-up cuts the risk of mid-season breakdowns and keeps energy use in line.
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