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Central a/c installers in Denville
We have over 30 years of industry experience and are dedicated to providing our clients with the very best in installation, service, and repair for your heating and cooling needs. Our company foundation is built on three generations of honesty and integrity. We specialize in central A/C, heating and furnace systems, in addition to a variety of HVAC-related projects. We take pride in the quality of our work and our commitment to outstanding results. We look forward to building long-term relationships with our clients, and guarantee your satisfaction!
"He is courteous and treats your home like it is his own and presents with options when it comes to prices."
Carla D on March 2018
We have over 30 years of industry experience and are dedicated to providing our clients with the very best in installation, service, and repair for your heating and cooling needs. Our company foundation is built on three generations of honesty and integrity. We specialize in central A/C, heating and furnace systems, in addition to a variety of HVAC-related projects. We take pride in the quality of our work and our commitment to outstanding results. We look forward to building long-term relationships with our clients, and guarantee your satisfaction!
"He is courteous and treats your home like it is his own and presents with options when it comes to prices."
Carla D on March 2018
Founded in 1984, Advanced Heating & Air Conditioning (AHAC) initially operated as Alpha Oil Company until 2000 when it transitioned exclusively to HVAC services. Established by brothers Lou and Danny Roerig, the business flourished under Danny's leadership until his retirement in 2009. The company, now helmed by nephews Louis & Nicholas, continued its upward trajectory by acquiring local HVAC businesses from 2010 to 2012, such as Advance Service Inc. & Ship Mechanical. Serving Warren, Hunterdon, and Middlesex Counties in New Jersey, as well as Lehigh and Northampton Counties in Pennsylvania, AHAC has built a strong reputation for exceptional customer service since its inception. Today, it remains committed to growth and customer satisfaction, adapting to meet the evolving needs of its expanding clientele.
"The tech called ahead to say we will be there in 35 minutes. They came on time! ( Between 10-12) efficient, knowledgeable and did a great job. Canâ t ask for better than that! Thank you!"
Carole C. C on September 2022
Founded in 1984, Advanced Heating & Air Conditioning (AHAC) initially operated as Alpha Oil Company until 2000 when it transitioned exclusively to HVAC services. Established by brothers Lou and Danny Roerig, the business flourished under Danny's leadership until his retirement in 2009. The company, now helmed by nephews Louis & Nicholas, continued its upward trajectory by acquiring local HVAC businesses from 2010 to 2012, such as Advance Service Inc. & Ship Mechanical. Serving Warren, Hunterdon, and Middlesex Counties in New Jersey, as well as Lehigh and Northampton Counties in Pennsylvania, AHAC has built a strong reputation for exceptional customer service since its inception. Today, it remains committed to growth and customer satisfaction, adapting to meet the evolving needs of its expanding clientele.
"The tech called ahead to say we will be there in 35 minutes. They came on time! ( Between 10-12) efficient, knowledgeable and did a great job. Canâ t ask for better than that! Thank you!"
Carole C. C on September 2022
At Superior Tech HVAC and R, Inc., our services are unmatched amongst the rest. We specialize in all HVAC installations and repair the New Jersey area. Call today for a free estimate! We look forward to working with you.
"very professional and prompt"
Dean C on April 2016
At Superior Tech HVAC and R, Inc., our services are unmatched amongst the rest. We specialize in all HVAC installations and repair the New Jersey area. Call today for a free estimate! We look forward to working with you.
"very professional and prompt"
Dean C on April 2016
is committed to excellence 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
"They did a good job replacing the 220v outlet to 120v. Good pricing too."
Maria Cecilia R on May 2024
is committed to excellence 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
"They did a good job replacing the 220v outlet to 120v. Good pricing too."
Maria Cecilia R on May 2024
We are the premier plumbing, heating, air conditioning, drain cleaning, electrical and insulation company serving the New Jersey area for the last two decades. We pride ourselves as the number one service company. Call today!
"Timely and well done"
John B on December 2024
We are the premier plumbing, heating, air conditioning, drain cleaning, electrical and insulation company serving the New Jersey area for the last two decades. We pride ourselves as the number one service company. Call today!
"Timely and well done"
John B on December 2024
Wehr There, LLC provides exceptional service to the surrounding areas. Always taking pride in all of our services. Whatever your home improvement needs may be, you can count on our company to leave you satisfied and happy. Our customer satisfaction is our top priority. We will earn your trust for a lifetime. We believe in making all clients repeat clients. Our staff listens to your needs regarding your home improvement project.
"Donald is professional, courteous, and gets the job done. He assisted with the purchase and installed an excellent storm door and it has done wonders to bring an end to drafts as well as preserve the door frame from inclement weather. Great Job!"
Fr P on October 2024
Wehr There, LLC provides exceptional service to the surrounding areas. Always taking pride in all of our services. Whatever your home improvement needs may be, you can count on our company to leave you satisfied and happy. Our customer satisfaction is our top priority. We will earn your trust for a lifetime. We believe in making all clients repeat clients. Our staff listens to your needs regarding your home improvement project.
"Donald is professional, courteous, and gets the job done. He assisted with the purchase and installed an excellent storm door and it has done wonders to bring an end to drafts as well as preserve the door frame from inclement weather. Great Job!"
Fr P on October 2024
ALJ Landscaping and Services LLC is a trusted provider of comprehensive handyman and landscaping services, dedicated to enhancing both the functionality and beauty of your property. Our skilled team specializes in a wide range of services, from expert landscaping design and maintenance to home repairs, installations, and general handyman tasks. Whether you need lawn care, tree trimming, garden design, or home improvement solutions, ALJ Landscaping and Services LLC delivers reliable, high-quality work tailored to your specific needs. We pride ourselves on exceptional customer service and attention to detail, ensuring your property remains well-maintained and your projects are completed with precision. Call or 'click' for a FREE estimate today!
"Great costumer service professional work performance. Affordable price!!! Thanks some much !!!!"
MARCEL G on January 2025
ALJ Landscaping and Services LLC is a trusted provider of comprehensive handyman and landscaping services, dedicated to enhancing both the functionality and beauty of your property. Our skilled team specializes in a wide range of services, from expert landscaping design and maintenance to home repairs, installations, and general handyman tasks. Whether you need lawn care, tree trimming, garden design, or home improvement solutions, ALJ Landscaping and Services LLC delivers reliable, high-quality work tailored to your specific needs. We pride ourselves on exceptional customer service and attention to detail, ensuring your property remains well-maintained and your projects are completed with precision. Call or 'click' for a FREE estimate today!
"Great costumer service professional work performance. Affordable price!!! Thanks some much !!!!"
MARCEL G on January 2025
Since 1989 Mountain Landscape Contractors, Inc. has been servicing northern New Jersey with all encompassing commercial and residential landscape services. Mountain Landscape Contractors, Inc. offers a full complement of landscape services providing everything you need to improve and maintain your property with one professional relationship.
"We've been using Mountain Landscape Contractors for the past 6+ years and they have totally transformed our property. It went from a neglected and overgrown mess to a beautiful usable space for our family to grow and play in. We use them for basic maintenance and property upkeep but we've also used them for drainage, fencing, retaining wall work, water management, hardscaping, landscaping and so much more. We'd highly recommend them to anyone looking to take their property to the next level."
Ari H on October 2024
Since 1989 Mountain Landscape Contractors, Inc. has been servicing northern New Jersey with all encompassing commercial and residential landscape services. Mountain Landscape Contractors, Inc. offers a full complement of landscape services providing everything you need to improve and maintain your property with one professional relationship.
"We've been using Mountain Landscape Contractors for the past 6+ years and they have totally transformed our property. It went from a neglected and overgrown mess to a beautiful usable space for our family to grow and play in. We use them for basic maintenance and property upkeep but we've also used them for drainage, fencing, retaining wall work, water management, hardscaping, landscaping and so much more. We'd highly recommend them to anyone looking to take their property to the next level."
Ari H on October 2024
Air Conditioning and Heating Services - We're a team of experienced and qualified HVAC technicians dedicated to providing exceptional service, expert repairs, and top-notch installations for your Cooling and Heating systems.
"Liv Air was very professional and friendly! I would hire them again!"
Leticia P on November 2024
Air Conditioning and Heating Services - We're a team of experienced and qualified HVAC technicians dedicated to providing exceptional service, expert repairs, and top-notch installations for your Cooling and Heating systems.
"Liv Air was very professional and friendly! I would hire them again!"
Leticia P on November 2024
We pride ourselves on the quality work we provide, while delivering great customer service. Check out our services offered and call or click to schedule an estimate today!
"It went well. He was urgent and onetime."
Cordell E on March 2025
We pride ourselves on the quality work we provide, while delivering great customer service. Check out our services offered and call or click to schedule an estimate today!
"It went well. He was urgent and onetime."
Cordell E on March 2025
Central a/c installations FAQs
If you’re replacing an old AC system with a new unit, you can usually clean and repair the old ductwork without having to conduct a full replacement. Cleaning HVAC ducts typically costs around $400, while repairs range from $200 to $1,000. In contrast, installing new ductwork can range from $1,000 to $5,000, making it far more costly than cleaning or fixing existing ducts. HVAC installation costs an average of $7,000 to replace a full system, so staying on top of maintenance and repairs is important.
AC cost efficiency depends on the size of your space and your long-term plans for your home. If you only need to cool a small area, a portable AC unit has a low upfront cost. Heat pumps are typically the most cost-effective option if you want to cool an entire home or improve the resale value. They provide strong cooling while being energy-efficient, which saves you money on your utility bills compared to most other AC types.
Installing a central AC unit typically takes four to eight hours if your home already has ductwork in place. However, if new ductwork needs to be installed, this can add another one to two days of labor to your project.
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