At All Weather Temperature Control, Inc., we help you create and maintain a comfortable and healthy indoor climate in your home or commercial building, regardless of the season or temperature outside. Using our high efficiency and Energy Star rated HVAC, air purification and water filtration systems, you will use less energy, cut down on utility costs and live and work in comfort, year-round. Family owned and operated, we have been serving the heating and air conditioning needs of our customers in both Nassau and Suffolk counties on Long Island for 51 years!
"They price gouged me on a fan motor. The part coast about $700 and they charged me $1,700 I had bought 2 full AC units and a boiler from them and trusted that they would treat right on my repair. DON'T DO business with All Weather"
David S on September 2024
At All Weather Temperature Control, Inc., we help you create and maintain a comfortable and healthy indoor climate in your home or commercial building, regardless of the season or temperature outside. Using our high efficiency and Energy Star rated HVAC, air purification and water filtration systems, you will use less energy, cut down on utility costs and live and work in comfort, year-round. Family owned and operated, we have been serving the heating and air conditioning needs of our customers in both Nassau and Suffolk counties on Long Island for 51 years!
"They price gouged me on a fan motor. The part coast about $700 and they charged me $1,700 I had bought 2 full AC units and a boiler from them and trusted that they would treat right on my repair. DON'T DO business with All Weather"
David S on September 2024
High Temp 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 our 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.
"Fast service, great customer service Fast diagnostic and many options offered"
Edward V on July 2022
High Temp 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 our 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.
"Fast service, great customer service Fast diagnostic and many options offered"
Edward V on July 2022
American Mechanical & General Contracting, Inc. 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.
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Imran R on September 2022
American Mechanical & General Contracting, Inc. 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.
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Imran R on September 2022
Expert HVAC Installations and Service to the Long Island Community for over 30 years. Ruud Pro Partner Certified. Superior Support, 24/7 Emergency Service Available. Licensed and Insured. We pride our company on reliability, great communication, integrity, and quality work. We are experts in our trade and will do our best to keep you as educated as we can on your particular task or project. We look forward to earning your business!
"They were on time to make an evaluation and followed up with a detailed quote. They were able to complete the job in one day (as promised) and then they explained everything that was installed. Very nice people. efficient and cost-effective. Highly recommended! "
robert r on May 2025
Expert HVAC Installations and Service to the Long Island Community for over 30 years. Ruud Pro Partner Certified. Superior Support, 24/7 Emergency Service Available. Licensed and Insured. We pride our company on reliability, great communication, integrity, and quality work. We are experts in our trade and will do our best to keep you as educated as we can on your particular task or project. We look forward to earning your business!
"They were on time to make an evaluation and followed up with a detailed quote. They were able to complete the job in one day (as promised) and then they explained everything that was installed. Very nice people. efficient and cost-effective. Highly recommended! "
robert r on May 2025
At MST Mechanical, we pride our company on reliability, great communication, integrity, and quality work. We are experts in our trade and will do our best to keep you as educated as we can on your particular task or project. We look forward to earning your business! Book with us online or feel free to give us a call today!
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John B on July 2021
At MST Mechanical, we pride our company on reliability, great communication, integrity, and quality work. We are experts in our trade and will do our best to keep you as educated as we can on your particular task or project. We look forward to earning your business! Book with us online or feel free to give us a call today!
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John B on July 2021
Hempstead HVAC & Supplies, Inc. proudly serves our customers with pride, integrity, and attention to the details that matter most to you. This is one of the many things that set us apart from the rest. We are locally owned and operated. Please give us a call today for your fence projects.
"It went very good until I paid them. I would like to have the zones fix. The external temperature fix and two of the pipes that were not done properly to be fixed."
Kumar M on March 2025
Hempstead HVAC & Supplies, Inc. proudly serves our customers with pride, integrity, and attention to the details that matter most to you. This is one of the many things that set us apart from the rest. We are locally owned and operated. Please give us a call today for your fence projects.
"It went very good until I paid them. I would like to have the zones fix. The external temperature fix and two of the pipes that were not done properly to be fixed."
Kumar M on March 2025
Modern Home Improvement Services, Inc. is committed to excellence in every aspect of our business. We strive to exceed customers expectations on every project. .With over 15 years of experience in the HVAC and Home Remodeling business MHIS Inc is a company you can trust to get the job done right at a fair price. MHIS is your one stop shop for all your home repair and maintenance needs IMPORTANT INFO ABOUT R22 AC SYSTEMS!!!! MOST HVAC companies will tell you incorrect information, not on purpose, but because they may not be familiar with all the available options. If you currently have an R22 HVAC system, 9/10 contractors will tell you, you need to replace the whole system because R22 is being phased out in 2020. They are correct about R22 being phased out BUT what they are not telling you is your system CAN be CONVERTED to the new R410A Refrigerant opposed replacing your entire HVAC System. We offer New System Installation, And Existing Retrofits to help fit every budget
"From town permit application to installation and even cleaning up, the process went smoothly and 100% on schedule. They explained everything to us in detail and made us feel at ease. I can recommend their work to any friends!! Thanks Jimmy"
Misa D K on November 2024
Modern Home Improvement Services, Inc. is committed to excellence in every aspect of our business. We strive to exceed customers expectations on every project. .With over 15 years of experience in the HVAC and Home Remodeling business MHIS Inc is a company you can trust to get the job done right at a fair price. MHIS is your one stop shop for all your home repair and maintenance needs IMPORTANT INFO ABOUT R22 AC SYSTEMS!!!! MOST HVAC companies will tell you incorrect information, not on purpose, but because they may not be familiar with all the available options. If you currently have an R22 HVAC system, 9/10 contractors will tell you, you need to replace the whole system because R22 is being phased out in 2020. They are correct about R22 being phased out BUT what they are not telling you is your system CAN be CONVERTED to the new R410A Refrigerant opposed replacing your entire HVAC System. We offer New System Installation, And Existing Retrofits to help fit every budget
"From town permit application to installation and even cleaning up, the process went smoothly and 100% on schedule. They explained everything to us in detail and made us feel at ease. I can recommend their work to any friends!! Thanks Jimmy"
Misa D K on November 2024
With over 5 years of experience, RVM Heating & Air Conditioning 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. Call us today!
"Rene and Mauricio were very professional, efficient, and accommodating. Their estimates were fair and they stuck to their quote. They were very respectful of our home and did a great job both outside and in. They were responsive to both our needs and questions. The units are very quiet and keeping us cool in this crazy heat wave. I highly recommend this company"
Judith G on June 2024
With over 5 years of experience, RVM Heating & Air Conditioning 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. Call us today!
"Rene and Mauricio were very professional, efficient, and accommodating. Their estimates were fair and they stuck to their quote. They were very respectful of our home and did a great job both outside and in. They were responsive to both our needs and questions. The units are very quiet and keeping us cool in this crazy heat wave. I highly recommend this company"
Judith G on June 2024
Tonnage Heating & Cooling 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.
Tonnage Heating & Cooling 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.
Here at C&A Mechanical, we have more than 30 years of heating and air conditioning experience. We provide quality work and continue our education and knowledge about the industry. Give us a call.
"Punctual, professional and job well done."
Manny M on December 2022
Here at C&A Mechanical, we have more than 30 years of heating and air conditioning experience. We provide quality work and continue our education and knowledge about the industry. Give us a call.
"Punctual, professional and job well done."
Manny M on December 2022
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.