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Window a/c unit installers in Lancaster
10 years exp Sunday - Saturdays 24/7
10 years exp Sunday - Saturdays 24/7

At Prime Efficiency HVAC, Our mission is to deliver reliable and innovative Hvac solutions that enhance the comfort and efficiency of our clients’ homes and businesses. We are committed to sustainability and work to provide environmentally friendly options that reduce energy consumption and lower utility bills.
At Prime Efficiency HVAC, Our mission is to deliver reliable and innovative Hvac solutions that enhance the comfort and efficiency of our clients’ homes and businesses. We are committed to sustainability and work to provide environmentally friendly options that reduce energy consumption and lower utility bills.

MCCORMICK HOME BUILDERS INC We're a locally owned and operated company that values honesty and integrity and treats your home or business as if it were our own. We are experts in all aspects of roofing projects and our services are customizable to each individual project. We specialize in both installations and replacements. We pride ourselves on the quality of our work as well as our commitment to outstanding results. We look forward to building lasting relationships and guarantee your satisfaction!
"Mike was our representative. Mike was our representative and everything he said there was to be done. They did absolutely wonderful and Mike was a really really good guy and thank you for that. I am very pleased and what they did and all the cleanup was done absolutely great thank you so much for the workmanship and all the people that you have working for you what they did for me was very professional very nice thank you again."
Barbara R on June 2025
MCCORMICK HOME BUILDERS INC We're a locally owned and operated company that values honesty and integrity and treats your home or business as if it were our own. We are experts in all aspects of roofing projects and our services are customizable to each individual project. We specialize in both installations and replacements. We pride ourselves on the quality of our work as well as our commitment to outstanding results. We look forward to building lasting relationships and guarantee your satisfaction!
"Mike was our representative. Mike was our representative and everything he said there was to be done. They did absolutely wonderful and Mike was a really really good guy and thank you for that. I am very pleased and what they did and all the cleanup was done absolutely great thank you so much for the workmanship and all the people that you have working for you what they did for me was very professional very nice thank you again."
Barbara R on June 2025

We are a locally owned and operated company that values honesty and integrity, and treats your home as if it were our own. We offer a variety of services that are customizable to each individual project. You will find us to be competitively priced, paying close attention to the details of each and every project that we are involved with. We look forward to building lasting relationships, and guarantee your satisfaction!
"Fast response and clear communication throughout the process."
Marco T on April 2025
We are a locally owned and operated company that values honesty and integrity, and treats your home as if it were our own. We offer a variety of services that are customizable to each individual project. You will find us to be competitively priced, paying close attention to the details of each and every project that we are involved with. We look forward to building lasting relationships, and guarantee your satisfaction!
"Fast response and clear communication throughout the process."
Marco T on April 2025
RSF Construction Inc. is a leader in providing our customers with the highest quality service in an honest, efficient, 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!
RSF Construction Inc. is a leader in providing our customers with the highest quality service in an honest, efficient, 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!

The Right Choice HVAC stands behind our quality installations. Over 10 years in business serving the community, veteran owned, Satisfaction Guaranteed, and workmanship guaranteed.
"From beginning to end, The Right Choice Heating and Air Conditioning Co. provided superior quality customer service and onsite work. From scheduling, to multiple follow-ups and reminders, re-confirming exact appointment time, and the post-inspection follow-up, they have truly impressed us. More importantly, Michael Taib, the technician who performed the work at our home, was indeed a true gentleman and professional. He was extremely knowledgeable and patient. I am familiar with the type of HVAC related work requirements, the lingo, and technician data. I quizzed him several times and he constantly responded with 100% honest and factual answers. He tirelessly worked on both of our HVAC units and performed the necessary services and repair. He was polite, courteous and clean. His most impressive talent was ensuring my wife's absolute confidence in his work after she grilled him with so many questions! We will continue to refer True Choice to all our friend and family! Call them; you will not be disappointed."
Frank N on March 2020
The Right Choice HVAC stands behind our quality installations. Over 10 years in business serving the community, veteran owned, Satisfaction Guaranteed, and workmanship guaranteed.
"From beginning to end, The Right Choice Heating and Air Conditioning Co. provided superior quality customer service and onsite work. From scheduling, to multiple follow-ups and reminders, re-confirming exact appointment time, and the post-inspection follow-up, they have truly impressed us. More importantly, Michael Taib, the technician who performed the work at our home, was indeed a true gentleman and professional. He was extremely knowledgeable and patient. I am familiar with the type of HVAC related work requirements, the lingo, and technician data. I quizzed him several times and he constantly responded with 100% honest and factual answers. He tirelessly worked on both of our HVAC units and performed the necessary services and repair. He was polite, courteous and clean. His most impressive talent was ensuring my wife's absolute confidence in his work after she grilled him with so many questions! We will continue to refer True Choice to all our friend and family! Call them; you will not be disappointed."
Frank N on March 2020

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!
"Absolutely great"
Betty S 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!
"Absolutely great"
Betty S on November 2024

Pennies Air Conditioning-Heating repair- Solar Installation and mechanical contractor providing repairs & installation in the Lancaster Ca, Palmdale Ca, and Santa Clarita Ca, Area since 1999. We specialize HVAC repairs and installations residential and commercial.
Pennies Air Conditioning-Heating repair- Solar Installation and mechanical contractor providing repairs & installation in the Lancaster Ca, Palmdale Ca, and Santa Clarita Ca, Area since 1999. We specialize HVAC repairs and installations residential and commercial.

At Rowland Air, we know that customer service satisfaction has always been and will continue to be the main reason for our success. We are committed to the goal of providing our customers with the most dependable, economical, and professional heating and air conditioning system available today. With continuous service since 1987, our customers can trust and depend on us to provide the expertise they need for a professional installation. At Rowland Air we understand the discomfort of having an air conditioning system go down during an extreme summer! Our air conditioning specialists are ready when you call to assist you in your time of need. Whether you have a forced air conditioning system, a heat pump, or an evaporator cooler, our service professionals can take care of any problem that may arise. We pride ourselves in being able to handle any emergency and keeping our customers cool and happy throughout the summer. Contact us today for your repairs or replacement needs! Rowland Air heating service is your local neighborhood heating specialists. Serving thousands of happy customers every year, we solved many problems that elude other heating companies. Our heating specialists are experts in servicing gravity furnaces, forced air furnaces, and heat pumps. We are often able to make repairs and/or adjustments on the spot without making unnecessary trips and wasting time. If you do need a major repair or replacement, our heating technicians can usually have the process taken care of within one or two days. Either way you have the best possible service with only minimal inconvenience. Installations Rowland Air guarantees your satisfaction with your new heating and air conditioning units. Call today for your free quote for replacements or additions. Please contact Rowland Air directly to discuss your duct testing needs.
"They were very good. They explained everything, prompt, and punctual. They did a great job and done very quickly."
Philip W on January 2020
At Rowland Air, we know that customer service satisfaction has always been and will continue to be the main reason for our success. We are committed to the goal of providing our customers with the most dependable, economical, and professional heating and air conditioning system available today. With continuous service since 1987, our customers can trust and depend on us to provide the expertise they need for a professional installation. At Rowland Air we understand the discomfort of having an air conditioning system go down during an extreme summer! Our air conditioning specialists are ready when you call to assist you in your time of need. Whether you have a forced air conditioning system, a heat pump, or an evaporator cooler, our service professionals can take care of any problem that may arise. We pride ourselves in being able to handle any emergency and keeping our customers cool and happy throughout the summer. Contact us today for your repairs or replacement needs! Rowland Air heating service is your local neighborhood heating specialists. Serving thousands of happy customers every year, we solved many problems that elude other heating companies. Our heating specialists are experts in servicing gravity furnaces, forced air furnaces, and heat pumps. We are often able to make repairs and/or adjustments on the spot without making unnecessary trips and wasting time. If you do need a major repair or replacement, our heating technicians can usually have the process taken care of within one or two days. Either way you have the best possible service with only minimal inconvenience. Installations Rowland Air guarantees your satisfaction with your new heating and air conditioning units. Call today for your free quote for replacements or additions. Please contact Rowland Air directly to discuss your duct testing needs.
"They were very good. They explained everything, prompt, and punctual. They did a great job and done very quickly."
Philip W on January 2020

We are small family operated company that has been in the HVAC industry for over 15years . We believe in honesty and good reliable timely service. As a licensed and certified company, we believe strongly in resolving any issues without up selling any unnecessary products and services. We treat every customer as if they are part of our family . CALL HD MECHANICAL TODAY for your free in home or business estimate.
"Great! The problem was solved quickly, and the A/C is working well again."
Eleonore G on July 2025
We are small family operated company that has been in the HVAC industry for over 15years . We believe in honesty and good reliable timely service. As a licensed and certified company, we believe strongly in resolving any issues without up selling any unnecessary products and services. We treat every customer as if they are part of our family . CALL HD MECHANICAL TODAY for your free in home or business estimate.
"Great! The problem was solved quickly, and the A/C is working well again."
Eleonore G on July 2025





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