Clifftop Contractors 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
"Quick service and affordable! Cristian came prepared to complete the job right away."
Carrie A on May 2022
Clifftop Contractors 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
"Quick service and affordable! Cristian came prepared to complete the job right away."
Carrie A on May 2022
Here at Selmerair, LLC, we are locally owned and operated and have been providing quality heating and cooling services for the Peoria community and surrounding areas for years. We take pride in providing the best for our customers being a licensed technician who ensures quality driven work and courteous, professional service. We provide the highest quality workmanship in install, repair, and replacements of residential Heating and Air Conditioning. Please call us today to schedule your appointment with true professionals at work for you!
"Selmerair came out immediately when my a/c wasnâ t cooling. They were honest and fair in price, kept me updated on progress and checked to see if it was still under warranty. They took care of the repairs and stuck around to make sure it was working properly. They also called after to make sure everything was still good. I was very impressed."
Dorothy L on June 2024
Here at Selmerair, LLC, we are locally owned and operated and have been providing quality heating and cooling services for the Peoria community and surrounding areas for years. We take pride in providing the best for our customers being a licensed technician who ensures quality driven work and courteous, professional service. We provide the highest quality workmanship in install, repair, and replacements of residential Heating and Air Conditioning. Please call us today to schedule your appointment with true professionals at work for you!
"Selmerair came out immediately when my a/c wasnâ t cooling. They were honest and fair in price, kept me updated on progress and checked to see if it was still under warranty. They took care of the repairs and stuck around to make sure it was working properly. They also called after to make sure everything was still good. I was very impressed."
Dorothy L on June 2024
Cool N Arizona LLC is dedicated to providing our customers with the best Customer service,Competitive prices, and amazing craftsmanship. We are here to build relationships with our customers and communities. Cool N Arizona LLC is a leader in providing our customers with the highest quality products and craftsmanship in an honest, efficient, affordable, and professional way. Our pledge is to create successful relationships with our customers, employees and community by building trust, treating every project with the utmost integrity and exceeding expectations. We look forward to working with you!
"They never showed up for my appointment. I left a voicemail and still have not heard back."
jeff m on May 2023
Cool N Arizona LLC is dedicated to providing our customers with the best Customer service,Competitive prices, and amazing craftsmanship. We are here to build relationships with our customers and communities. Cool N Arizona LLC is a leader in providing our customers with the highest quality products and craftsmanship in an honest, efficient, affordable, and professional way. Our pledge is to create successful relationships with our customers, employees and community by building trust, treating every project with the utmost integrity and exceeding expectations. We look forward to working with you!
"They never showed up for my appointment. I left a voicemail and still have not heard back."
jeff m on May 2023
Welcome to All Valley Air! In business since 2016, we are a full service heating and cooling service specializing in repair and maintenance. No job is too big or too small. We service the entire valley and its surrounding areas, so be sure to give us a call today!
"Quick response from the owner who set up the appointment himself. Technician was prompt, knowledgable and friendly. Service was performed to our satisfaction and the cost was reasonable."
Ron B on October 2019
Welcome to All Valley Air! In business since 2016, we are a full service heating and cooling service specializing in repair and maintenance. No job is too big or too small. We service the entire valley and its surrounding areas, so be sure to give us a call today!
"Quick response from the owner who set up the appointment himself. Technician was prompt, knowledgable and friendly. Service was performed to our satisfaction and the cost was reasonable."
Ron B on October 2019
JOHNSON REFRIGERATION 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.
JOHNSON REFRIGERATION 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.
Central Valley Mechanical Services is a full-service mechanical contracting firm specializing in commercial and industrial heating, ventilation, air conditioning, and refrigeration. Established in 2021, Central Valley Mechanical Services remarkable growth and solid reputation reflect the company’s commitment to quality, safety, training and customer satisfaction. Our company specializes in proactive maintenance, service, and installation of heating, ventilation, air conditioning (HVAC), and refrigeration equipment for a diverse customer base that focuses in the commercial service and manufacturing industries. Our reputation for supplying quality design, products, installations, and service is our Company’s biggest asset. We are very proud of the people on our team, the customer relationships we have established and the progress our company continues to make as we strive to deliver more value to our customers.
Central Valley Mechanical Services is a full-service mechanical contracting firm specializing in commercial and industrial heating, ventilation, air conditioning, and refrigeration. Established in 2021, Central Valley Mechanical Services remarkable growth and solid reputation reflect the company’s commitment to quality, safety, training and customer satisfaction. Our company specializes in proactive maintenance, service, and installation of heating, ventilation, air conditioning (HVAC), and refrigeration equipment for a diverse customer base that focuses in the commercial service and manufacturing industries. Our reputation for supplying quality design, products, installations, and service is our Company’s biggest asset. We are very proud of the people on our team, the customer relationships we have established and the progress our company continues to make as we strive to deliver more value to our customers.
Here at Reliable Air Conditioning Inc, we pride ourselves on treating each project like it's our very own! No job is too big or small when it comes to turning your vision into your reality. Over 15 years of experience in the field we're here when you need us the most! Our goal is to leave you satisfied and make sure your job gets done right the first time so call today for an estimate and breeze your way into a better life! /Users/jeff/Downloads/Ruud_Flat_RGB.jpg
"Mike called ahead to confirm on way, showed up on time. Answered all my questions, and cleared up why the DIY is only trouble. His recommendation was the most cost effective, but no pressure."
Jim S on June 2021
Here at Reliable Air Conditioning Inc, we pride ourselves on treating each project like it's our very own! No job is too big or small when it comes to turning your vision into your reality. Over 15 years of experience in the field we're here when you need us the most! Our goal is to leave you satisfied and make sure your job gets done right the first time so call today for an estimate and breeze your way into a better life! /Users/jeff/Downloads/Ruud_Flat_RGB.jpg
"Mike called ahead to confirm on way, showed up on time. Answered all my questions, and cleared up why the DIY is only trouble. His recommendation was the most cost effective, but no pressure."
Jim S on June 2021
Mechanical Brothers Heating and Cooling has been servicing the Phoenix Valley for over 15 years. We care about the quality of our work and the satisfaction of our customers. We provide fully licensed and bonded technicians as well as offer full financing on all new A/C units! #Residential and #Commercial You can put your trust in us, we provide a professional service with exceptional quality at an outstanding price; All of our services and products are guaranteed. Our unparalleled service, unbeatable prices, and overall value are why our loyal customers won?t go anywhere else. We look forward to serving you! We provide Discount's for #Teachers #Veterans #Military #LawEnforcement #FirstRespinders #Seniors65 Our air conditioning, heating services are available to the entire Phoenix Valley including: Phoenix, Glendale, Mesa, Peoria, Scottsdale, Sun City, Sun City West, Surprise, Tempe, Avondale, Goodyear, Anthem and many more. www.mbrothersac.com
"The company answered my query within an hour after I submitted it through the site. They dispatched someone in an hour. Both were big pluses. The tech inspected my breakers, the A/C outside, and the air handler in my attic. He found a sensor was being tripped due to water buildup in a line? Why hasn't this happened once since I bought the A/C unit 5 years ago I wondered. The tech fixed the sensor and left. $170 or so. The same problem happened within a month. I called again. They dispatched someone else via text. Then shortly after they dispatched the same guy Matt that "Fixed" the sensor the first time. He checked it, disconnected it, and left it hanging down from my attic door. He said he'd need some nitrogen to blow out a line due to water build up and fix the sensor again. I never heard from him or anyone else again. The follow up from this company is non-existant. Also the "water issue" I found out was not a real problem from the 2nd company called."
Rob R on June 2025
Mechanical Brothers Heating and Cooling has been servicing the Phoenix Valley for over 15 years. We care about the quality of our work and the satisfaction of our customers. We provide fully licensed and bonded technicians as well as offer full financing on all new A/C units! #Residential and #Commercial You can put your trust in us, we provide a professional service with exceptional quality at an outstanding price; All of our services and products are guaranteed. Our unparalleled service, unbeatable prices, and overall value are why our loyal customers won?t go anywhere else. We look forward to serving you! We provide Discount's for #Teachers #Veterans #Military #LawEnforcement #FirstRespinders #Seniors65 Our air conditioning, heating services are available to the entire Phoenix Valley including: Phoenix, Glendale, Mesa, Peoria, Scottsdale, Sun City, Sun City West, Surprise, Tempe, Avondale, Goodyear, Anthem and many more. www.mbrothersac.com
"The company answered my query within an hour after I submitted it through the site. They dispatched someone in an hour. Both were big pluses. The tech inspected my breakers, the A/C outside, and the air handler in my attic. He found a sensor was being tripped due to water buildup in a line? Why hasn't this happened once since I bought the A/C unit 5 years ago I wondered. The tech fixed the sensor and left. $170 or so. The same problem happened within a month. I called again. They dispatched someone else via text. Then shortly after they dispatched the same guy Matt that "Fixed" the sensor the first time. He checked it, disconnected it, and left it hanging down from my attic door. He said he'd need some nitrogen to blow out a line due to water build up and fix the sensor again. I never heard from him or anyone else again. The follow up from this company is non-existant. Also the "water issue" I found out was not a real problem from the 2nd company called."
Rob R on June 2025
Established in 1939, we do residential HVAC and plumbing the right way, not the easy way. At Goettl, we are total home comfort solution providers, enhancing the quality of life in the communities we serve. As Sadie Certified professionals, equipped with cutting-edge tools and technology, we deliver a superior customer experience, one home at a time.
"The tech came out and said he had to put Dye in my unit that was down so he could find the leak . My one unit was low on refrigerant and had to put dye in than he added 3 pounds of refrigerant . He charged me $1,373.00 for this . Total rip off . I called my friend who runs a HVAC company and had him look at my one unit that Goettl serviced . There was no dye present in the system put in .The dye cost was $1,100.00, My new tech found the leak right away it was the coil outside that was leaking refrigerant and no dye was present it was just the oily refrigerant and found the leak immediately. So I got ripped off as the Goettl tech charged me for this and never put dye in the system. The tech checked the coils in the attic so he said . My tech checked the coils and took a picture of the plate that covers the coils and the screws still had the plastic over the screws so he lied about that because he did not even take the screws off to check it . I have a picture of the plate cover which he did not take off because the screws were still sealed with the plastic on them. So the Goettl tech lied to me about that also. So I got charged $1,373.00 for dye that I did not get , lied about checking the coils in the attic, and did not even check the coils in the unit outside . My tech has pictures , found the leak outside right away with the refrigerant leaking with no dye in it . So Goettl totally ripped me off $1,373.00 dollars . I would not use Goettl ever again . My friend who is in charge of HVAC in a business says the dye only cost him $90.00 to buy and I get charged $1,173.00 by Goettl for a service I never received . My tech said he did not need to use dye as he found the leak in the outside coils immediately on inspection . Goettl totally ripped me off and Iâ m fighting the charge as terrible service ."
Edward K on June 2024
Established in 1939, we do residential HVAC and plumbing the right way, not the easy way. At Goettl, we are total home comfort solution providers, enhancing the quality of life in the communities we serve. As Sadie Certified professionals, equipped with cutting-edge tools and technology, we deliver a superior customer experience, one home at a time.
"The tech came out and said he had to put Dye in my unit that was down so he could find the leak . My one unit was low on refrigerant and had to put dye in than he added 3 pounds of refrigerant . He charged me $1,373.00 for this . Total rip off . I called my friend who runs a HVAC company and had him look at my one unit that Goettl serviced . There was no dye present in the system put in .The dye cost was $1,100.00, My new tech found the leak right away it was the coil outside that was leaking refrigerant and no dye was present it was just the oily refrigerant and found the leak immediately. So I got ripped off as the Goettl tech charged me for this and never put dye in the system. The tech checked the coils in the attic so he said . My tech checked the coils and took a picture of the plate that covers the coils and the screws still had the plastic over the screws so he lied about that because he did not even take the screws off to check it . I have a picture of the plate cover which he did not take off because the screws were still sealed with the plastic on them. So the Goettl tech lied to me about that also. So I got charged $1,373.00 for dye that I did not get , lied about checking the coils in the attic, and did not even check the coils in the unit outside . My tech has pictures , found the leak outside right away with the refrigerant leaking with no dye in it . So Goettl totally ripped me off $1,373.00 dollars . I would not use Goettl ever again . My friend who is in charge of HVAC in a business says the dye only cost him $90.00 to buy and I get charged $1,173.00 by Goettl for a service I never received . My tech said he did not need to use dye as he found the leak in the outside coils immediately on inspection . Goettl totally ripped me off and Iâ m fighting the charge as terrible service ."
Edward K on June 2024
Semper Fi Heating & Cooling is proud to be a locally owned and operated business that serves Maricopa and Pinal Counties as well as the surrounding community. With years of experience and unmatched expertise we can help with any and all of your heating, cooling and air quality needs. Since opening our doors we have built our business on providing our neighbors with the highest quality products and service at a fair price. Our customers can count on us to be timely, tidy and when they job is done that they will be 100% satisfied with the work. Let us show you the Semper Fi difference, get in touch today!
"Efficient in all aspects of installation"
William B on April 2025
Semper Fi Heating & Cooling is proud to be a locally owned and operated business that serves Maricopa and Pinal Counties as well as the surrounding community. With years of experience and unmatched expertise we can help with any and all of your heating, cooling and air quality needs. Since opening our doors we have built our business on providing our neighbors with the highest quality products and service at a fair price. Our customers can count on us to be timely, tidy and when they job is done that they will be 100% satisfied with the work. Let us show you the Semper Fi difference, get in touch today!
"Efficient in all aspects of installation"
William B on April 2025
Consider replacing your gravity furnace when it's over 30 years old, when you experience frequent system failures, or when your heating bills continue rising despite maintenance. Many older gravity systems operate at substantially lower efficiency rates compared to modern alternatives, often 50% to 60% versus the 80% to 98% efficiency of contemporary furnaces.
Replacement also makes sense when your existing system shows signs of deterioration that could affect safety or when professional inspection reveals significant issues.
Most gravity furnace replacements require between six and 12 hours of professional labor, spanning one to two working days, depending on scheduling and complexity. Basic installations with minimal complications may be completed in a single day, while projects requiring extensive ductwork modifications or asbestos remediation will require additional time.
The timeline includes removal of the old system, preparation of the installation area, placement and connection of the new furnace, and thorough testing.
Watch for warning signs, including inconsistent heating throughout your home, unusual noises during operation, visible corrosion or damage to the heat exchanger, and steadily increasing energy consumption. If your furnace requires frequent repairs or if you notice a yellow or flickering pilot light instead of a steady blue flame, these may indicate serious issues.
Age remains a primary consideration—systems over 30 years old warrant replacement rather than continued repair.
Well-maintained gravity furnaces that pass professional safety inspections can continue operating, but they inherently carry more risk factors than modern systems. Potential concerns include less efficient combustion that may produce carbon monoxide, deteriorating components that could create fire hazards, and the possible presence of asbestos in insulation materials.
Modern furnaces incorporate numerous safety improvements, including automatic shutdown features, sealed combustion chambers, and electronic ignition systems that eliminate standing pilot lights.