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Window a/c unit installers in Altadena
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!
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
MCCORMICK HOME BUILDERS INC Were 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 Were 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
Cal Climate is family owned and operated, bringing a personal touch to everything we do. In 1970, founder Andrew "Andy" Sauer started the company with a simple vision - provide friendly, reliable service and products. Andy knew that Cal Climate would succeed by building a reputation based on going the extra distance. His sons, Tom and Bob, continue to carry on that awesome tradition today. We take pride in the fact that 90% of our new business comes from referral's. Please if you have any further questions or you would like to schedule a service call or a free installation appointment please contact us
"This review is long overdue, but I need to praise Calclimate for their excellent service! Tom and Chris were professional, reliable, and provided quality work. Tom replaced my father’s AC unit last summer on a short notice and provided much needed relief for my father, who was physically impaired at the time. I highly recommend Calclimate and will definitely use them again!"
Licet G on March 2025
Cal Climate is family owned and operated, bringing a personal touch to everything we do. In 1970, founder Andrew "Andy" Sauer started the company with a simple vision - provide friendly, reliable service and products. Andy knew that Cal Climate would succeed by building a reputation based on going the extra distance. His sons, Tom and Bob, continue to carry on that awesome tradition today. We take pride in the fact that 90% of our new business comes from referral's. Please if you have any further questions or you would like to schedule a service call or a free installation appointment please contact us
"This review is long overdue, but I need to praise Calclimate for their excellent service! Tom and Chris were professional, reliable, and provided quality work. Tom replaced my father’s AC unit last summer on a short notice and provided much needed relief for my father, who was physically impaired at the time. I highly recommend Calclimate and will definitely use them again!"
Licet G on March 2025
Sogo Industries Handyman & Master Carpenter At Sogo Industries, we specialize in home renovations, repairs, and custom carpentry, with over 20 years of experience. As a family-owned business, we offer expert craftsmanship and dependable service, understanding the challenges homeowners face when completing projects, fixing issues, or improving their homes. With extensive experience in handling everything from small odd jobs to complete home renovations, our founder has been working hands-on in the industry for over two decades. Whether managing projects solo or collaborating with a team of helpers and subcontractors, we've built a reputation for delivering high-quality work tailored to each client’s needs. We understand that every home is unique. Whether you’re updating a kitchen, building custom furniture, or adding new spaces, we provide the expertise and attention to detail to bring your vision to life. At Sogo Industries, we treat your home with the same care as our own, ensuring lasting results and high standards of craftsmanship. Our process is simple: clear communication, transparent pricing, and no surprises. We work closely with you from the initial consultation to project completion, ensuring you’re always informed and confident throughout. For all your home improvement needs, Sogo Industries is here to help. Let us bring your ideas to life with skill, professionalism, and a personal touch.
Sogo Industries Handyman & Master Carpenter At Sogo Industries, we specialize in home renovations, repairs, and custom carpentry, with over 20 years of experience. As a family-owned business, we offer expert craftsmanship and dependable service, understanding the challenges homeowners face when completing projects, fixing issues, or improving their homes. With extensive experience in handling everything from small odd jobs to complete home renovations, our founder has been working hands-on in the industry for over two decades. Whether managing projects solo or collaborating with a team of helpers and subcontractors, we've built a reputation for delivering high-quality work tailored to each client’s needs. We understand that every home is unique. Whether you’re updating a kitchen, building custom furniture, or adding new spaces, we provide the expertise and attention to detail to bring your vision to life. At Sogo Industries, we treat your home with the same care as our own, ensuring lasting results and high standards of craftsmanship. Our process is simple: clear communication, transparent pricing, and no surprises. We work closely with you from the initial consultation to project completion, ensuring you’re always informed and confident throughout. For all your home improvement needs, Sogo Industries is here to help. Let us bring your ideas to life with skill, professionalism, and a personal touch.
"A jack of all trades is a master of none but oftentimes better than a master of one" William Shakespeare. With 20 years of experience there is No Job Too Big Or Too Small for us!
"Hector and his crew did and excellent job sanding, staining and putting a UV sealant on a long architectural fence. The fence gets the intense afternoon sun and they made recommendations to press the longevity of the fence. We will definitely use them again for additional work at our home. Next up, the wood deck."
Shelley B on May 2024
"A jack of all trades is a master of none but oftentimes better than a master of one" William Shakespeare. With 20 years of experience there is No Job Too Big Or Too Small for us!
"Hector and his crew did and excellent job sanding, staining and putting a UV sealant on a long architectural fence. The fence gets the intense afternoon sun and they made recommendations to press the longevity of the fence. We will definitely use them again for additional work at our home. Next up, the wood deck."
Shelley B on May 2024
If you're looking for comfort you can count on, you've found the right place! Whether you need service-and need it fast-or you're looking to replace or invest in new equipment for your home, AirTech Air Conditioning & Heating can help. Ask around... our name is well known and respected in because we care about impressing you so much that you'll want to call us next time and every time. Award-winning Air Conditioning & Heating Company including the Angie's List Super Service Award. Free estimates on replacement systems, new installations and duct cleaning/air purification. Servicing all major brands, makes and models for central and ductless/mini-split systems. Financing is available. AirTech is a participating HERO contractor.
"Air Tech was great. I would HIGHLY recommend. I initially had 2 other companies besides Air Tech come out for a replacement estimate. Price wise Air Tech was right in the middle but were doing a lot more than the other 2 quotes I got. For example they were changing the copper refrigeration lines, which the other 2 weren’t going to do. When I called the other 2 companies to add the lines in there was going to be an additional $1500-$2000 charge. I’m very pleased with this the work that was done by Air Tech"
Deanna M on January 2024
If you're looking for comfort you can count on, you've found the right place! Whether you need service-and need it fast-or you're looking to replace or invest in new equipment for your home, AirTech Air Conditioning & Heating can help. Ask around... our name is well known and respected in because we care about impressing you so much that you'll want to call us next time and every time. Award-winning Air Conditioning & Heating Company including the Angie's List Super Service Award. Free estimates on replacement systems, new installations and duct cleaning/air purification. Servicing all major brands, makes and models for central and ductless/mini-split systems. Financing is available. AirTech is a participating HERO contractor.
"Air Tech was great. I would HIGHLY recommend. I initially had 2 other companies besides Air Tech come out for a replacement estimate. Price wise Air Tech was right in the middle but were doing a lot more than the other 2 quotes I got. For example they were changing the copper refrigeration lines, which the other 2 weren’t going to do. When I called the other 2 companies to add the lines in there was going to be an additional $1500-$2000 charge. I’m very pleased with this the work that was done by Air Tech"
Deanna M on January 2024
Any residential project big or small! Small handyman services to large room additions there is nothing we can’t handle! With over 20 years of experience doing home renovations, water damage repairs, ADU’S custom woodworking, exterior and landscaping we can do it all!
"Ace Construction (Tony) provided an estimate that was reasonable, upfront and included a time frame for completion. Payments were made as the project progressed through each phase. As with any project communication between homeowner and business is vital and Tony was superb throughout the entire project. Tony has a keen eye when it came to vision and style, he provided excellent input and made great suggestions. We are very pleased with the work done by Ace Construction, Tony transformed our outdated kitchen, bathrooms and fireplace to the most current style. We always receive wonderful compliments from our house guests. Two thumbs up for Ace Construction!!"
Raymond C on August 2024
Any residential project big or small! Small handyman services to large room additions there is nothing we can’t handle! With over 20 years of experience doing home renovations, water damage repairs, ADU’S custom woodworking, exterior and landscaping we can do it all!
"Ace Construction (Tony) provided an estimate that was reasonable, upfront and included a time frame for completion. Payments were made as the project progressed through each phase. As with any project communication between homeowner and business is vital and Tony was superb throughout the entire project. Tony has a keen eye when it came to vision and style, he provided excellent input and made great suggestions. We are very pleased with the work done by Ace Construction, Tony transformed our outdated kitchen, bathrooms and fireplace to the most current style. We always receive wonderful compliments from our house guests. Two thumbs up for Ace Construction!!"
Raymond C on August 2024
Other Los Angeles area HVAC companies may talk about their goals of 100% customer satisfaction, but Lenco Air Conditioning Service Inc. makes it a part of our every day practice. Lenco Air Conditioning Service Inc. offers Los Angeles customers the best air conditioning, heating, cooling and indoor air quality services around - you can count on that! Our experienced HVAC technicians and service reps understand that each customer situation is unique. Call today for the area's best! Some cooling systems are older models, and upgrading to new equipment will offer substantial savings on energy bills. If you have an air conditioner that is older just ask us for a FREE Estimate, and we will come out to inspect your setup and let you know what options would be perfect for your specific needs!
"Technican as very professional. Scheduling the appointment was easy and fast."
Robert B on July 2020
Other Los Angeles area HVAC companies may talk about their goals of 100% customer satisfaction, but Lenco Air Conditioning Service Inc. makes it a part of our every day practice. Lenco Air Conditioning Service Inc. offers Los Angeles customers the best air conditioning, heating, cooling and indoor air quality services around - you can count on that! Our experienced HVAC technicians and service reps understand that each customer situation is unique. Call today for the area's best! Some cooling systems are older models, and upgrading to new equipment will offer substantial savings on energy bills. If you have an air conditioner that is older just ask us for a FREE Estimate, and we will come out to inspect your setup and let you know what options would be perfect for your specific needs!
"Technican as very professional. Scheduling the appointment was easy and fast."
Robert B on July 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
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
FAQs for window a/c unit installation projects in Altadena, CA
Running a window air conditioner to cool a small room often costs less than $4 per day, making it cheaper than central air for single-room cooling. However, central air might be more efficient if you're using multiple window units or need to cool a space larger than 1,000 square feet. Choosing the right size AC is crucial—a unit that's too big or small can waste energy and increase costs.
Window AC units can use a significant amount of energy. These units use about 12 to 17 kilowatt-hours per day, significantly more than a refrigerator's one to 1.5 kilowatt-hours per day. To keep your energy costs down, run your window AC only when necessary, keep doors closed to contain the cool air, regularly clean filters and coils, and seal any gaps around the unit to prevent cold air from escaping.
Inexpensive air conditioner units are often not worth it. Low-cost products from popular brands like General Electric, LG, Whirlpool, or Frigidaire may be a reasonable investment. However, putting a small, budget-friendly unit in a large room wastes energy and shortens the life span of the AC since it has to draw more power and work much harder to cool the space. The unit will consume more energy and stress the motor and other internal parts, resulting in early breakdown and costly repairs.
The best deals on window AC units come during the fall when businesses slash prices to clear out old inventory. You can also speak with your local AC installer, who may get you a good deal on a window AC unit since they have access to trade pricing. You can also watch for discontinued products and flash sales in your area.
Window AC repair costs between $110 and $390, with most people paying around $250. Parts cost between $2 and $150, with the rest going toward labor, at around $30 per hour. The occasional one-off repair or a routine AC tuneup cost $75 to $200. Servicing can keep your AC running in good condition for several more years before you need to pay for a replacement unit.
Window AC units last eight to 10 years when installed and maintained correctly. High-quality models last up to 20 years with proper care and routine maintenance. The unit’s longevity depends on its construction quality, regular cleaning, and electrical safety inspections. Keeping the filters and coils clean and addressing minor repairs promptly extends its effective performance and ensures reliable cooling.
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