Top-rated window a/c unit installers.

Get matched with top window a/c unit installers in Signal Hill, CA

Enter your zip and get matched with up to 3 pros

Matching on HomeAdvisor

Share some details icon
Share some details about your home project.
Match with local pros icon
Within moments, match with highly-rated local pros.
Compare quotes icon
Compare quotes and choose the best pro for the job.

Window a/c unit installers in Signal Hill

Avatar for Marco Montes

Marco Montes

334 S. Westlake
4.86(
70
)
•Approved Pro

Marco Montes

334 S. Westlake
4.86(
70
)
•Approved Pro
Customers say: Quick response
Recommended by 94% of Angi customers
Recommended by 94% of HomeAdvisor customers
291 local quotes requested

2 employees. Occasionally uses subs for hardwood floors. Cost is determined by the job. No travel charges. No service charges. No extra charge for after hours service.

"Great. Professional and prepared."

Michael S on September 2025

2 employees. Occasionally uses subs for hardwood floors. Cost is determined by the job. No travel charges. No service charges. No extra charge for after hours service.

"Great. Professional and prepared."

Michael S on September 2025

Avatar for Prime Efficiency Heating And Air Conditioning - Unlicensed Contractor

Prime Efficiency Heating And Air Conditioning - Unlicensed Contractor

7801 Fairchild Ave
New on HomeAdvisorNew on HomeAdvisor
•Approved Pro

Prime Efficiency Heating And Air Conditioning - Unlicensed Contractor

7801 Fairchild Ave
New on HomeAdvisorNew on HomeAdvisor
•Approved Pro
32 local quotes requested
26 years of experience

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.

Avatar for McCormick Home Builders, Inc.

McCormick Home Builders, Inc.

23445 Haynes Street
4.29(
19
)
•Approved Pro

McCormick Home Builders, Inc.

23445 Haynes Street
4.29(
19
)
•Approved Pro
Customers say: True professional
170 local quotes requested
8 years of experience

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

Avatar for Prosper Construction Development, Inc.

Prosper Construction Development, Inc.

180 Steuart St., Box 194631
4.88(
38
)
•Approved Pro

Prosper Construction Development, Inc.

180 Steuart St., Box 194631
4.88(
38
)
•Approved Pro
Customers say: Quick response
Recommended by 97% of Angi customers
Recommended by 97% of HomeAdvisor customers
188 local quotes requested

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.

6910 Monte Verde Drive
New on HomeAdvisorNew on HomeAdvisor
•Approved Pro

RSF Construction Inc.

6910 Monte Verde Drive
New on HomeAdvisorNew on HomeAdvisor
•Approved Pro
199 local quotes requested
6 years of experience

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!

Avatar for Harmony Electrical, Plumbing and Air

Harmony Electrical, Plumbing and Air

11121 First Ave
5.00(
11
)
•Approved Pro

Harmony Electrical, Plumbing and Air

11121 First Ave
5.00(
11
)
•Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
3750 local quotes requested

Harmony Electrical, Plumbing and Air is dedicated to delivering exceptional electrical, plumbing and Air services tailored to meet the unique needs of each client. Our mission is to ensure reliability and quality through customized solutions, supported by a team of highly skilled and experienced technicians who are always prepared to provide outstanding service. We are committed to your satisfaction and will not consider the job complete until it meets our high standards. Our pride lies in the quality of our work and our commitment to excellent customer service. Explore the range of services we offer below, and feel free to call or click to schedule your free estimate today!

"The team did a great job! They were prompt, polite, efficient, kept me informed and left the area clean."

Robert M on August 2024

Harmony Electrical, Plumbing and Air is dedicated to delivering exceptional electrical, plumbing and Air services tailored to meet the unique needs of each client. Our mission is to ensure reliability and quality through customized solutions, supported by a team of highly skilled and experienced technicians who are always prepared to provide outstanding service. We are committed to your satisfaction and will not consider the job complete until it meets our high standards. Our pride lies in the quality of our work and our commitment to excellent customer service. Explore the range of services we offer below, and feel free to call or click to schedule your free estimate today!

"The team did a great job! They were prompt, polite, efficient, kept me informed and left the area clean."

Robert M on August 2024

Ozman Handyman

8423 Lexington Gallatin Rd
4.33(
6
)
•Approved Pro

Ozman Handyman

8423 Lexington Gallatin Rd
4.33(
6
)
•Approved Pro
Customers say: Quick response
926 local quotes requested

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!

"Everything was beautifully done. I couldn't be happier! I have recommended Ozzie to several friends. He is reliable, honest, trustworthy and responsible. I'd hire him again!! Thank you Ozzie... see you soon about the all-wood 5 shelf book case!!"

Judith B on February 2025

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!

"Everything was beautifully done. I couldn't be happier! I have recommended Ozzie to several friends. He is reliable, honest, trustworthy and responsible. I'd hire him again!! Thank you Ozzie... see you soon about the all-wood 5 shelf book case!!"

Judith B on February 2025

Avatar for Trinity Heating and AC

Trinity Heating and AC

3148 E La Palma Ave Unit H
5.00(
9
)
•Approved Pro

Trinity Heating and AC

3148 E La Palma Ave Unit H
5.00(
9
)
•Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
2397 local quotes requested

Trinity Heating and AC is so much more than another heating/AC company. We exceed our customer’s expectations and standards in a number of ways; such as arriving within the promised time frame or leave our work space cleaner then we found it! We provide custom solutions that take all factors into consideration so we can design a system that will meet the needs of your home and everyone in it! We offer so much more then just replacement of your existing system or installation of a new one. Do you have high utility bills when you are running the system, or someone’s allergies are aggravated when running the system? No matter what your need, if it has anything to do with HEATING, COOLING, AIR FLOW, or AIR QUALITY; TRINITY HEATING AND AC is ready to help!

"Chris was able to fix our ac unit, where my old account guy said we NEEDED to replace it!!! Plus Chris is very personable and I believe he is very honest and forthcoming as he could have sold us a new system, but found us a much cheaper option!!"

Sonja H on June 2025

Trinity Heating and AC is so much more than another heating/AC company. We exceed our customer’s expectations and standards in a number of ways; such as arriving within the promised time frame or leave our work space cleaner then we found it! We provide custom solutions that take all factors into consideration so we can design a system that will meet the needs of your home and everyone in it! We offer so much more then just replacement of your existing system or installation of a new one. Do you have high utility bills when you are running the system, or someone’s allergies are aggravated when running the system? No matter what your need, if it has anything to do with HEATING, COOLING, AIR FLOW, or AIR QUALITY; TRINITY HEATING AND AC is ready to help!

"Chris was able to fix our ac unit, where my old account guy said we NEEDED to replace it!!! Plus Chris is very personable and I believe he is very honest and forthcoming as he could have sold us a new system, but found us a much cheaper option!!"

Sonja H on June 2025

SINCLAIR HEATING & AIR CONDITIONING LLC

13202 Anawood Way
4.99(
83
)
•Approved Pro

SINCLAIR HEATING & AIR CONDITIONING LLC

13202 Anawood Way
4.99(
83
)
•Approved Pro
Customers say: True professional
Recommended by 98% of Angi customers
Recommended by 98% of HomeAdvisor customers
1085 local quotes requested

2 EMPLOYEES. NO SUBS. COST IS DETERMINED BY THE JOB. NO TRAVEL CHARGES. EXTRA CHARGES FOR AFTER HOURS SERVICE. *PHONE CORRESPONDENCE IS PREFERRED FOR NEW CLIENTS*

"fantastic Nick came out and not only fixed mine but took a look at my son's down the street and recharged his. Couldn't be any happier would definately hire again."

Rob T on July 2021

2 EMPLOYEES. NO SUBS. COST IS DETERMINED BY THE JOB. NO TRAVEL CHARGES. EXTRA CHARGES FOR AFTER HOURS SERVICE. *PHONE CORRESPONDENCE IS PREFERRED FOR NEW CLIENTS*

"fantastic Nick came out and not only fixed mine but took a look at my son's down the street and recharged his. Couldn't be any happier would definately hire again."

Rob T on July 2021

Avatar for Total Home Environmental HVAC Co.

Total Home Environmental HVAC Co.

1423 Marcelina Ave
New on HomeAdvisorNew on HomeAdvisor
•Approved Pro

Total Home Environmental HVAC Co.

1423 Marcelina Ave
New on HomeAdvisorNew on HomeAdvisor
•Approved Pro
525 local quotes requested
25 years of experience

Choose Total Home Environmental for the Best Heating and Cooling Services in Torrance. When you have a malfunctioning air conditioner, you will more than likely do whatever it takes to get it working properly again. You don’t want to have to fix it by yourself, so your first move should be to find a company you can trust. We are that company at Total Home Environmental. We have been in the business for years, so we really know our way around air conditioners, heaters, and HVAC in general. You can call us at 310-554-6477 to find out more about us and to see why you should turn to us as your next air conditioning company in Torrance, CA.

Choose Total Home Environmental for the Best Heating and Cooling Services in Torrance. When you have a malfunctioning air conditioner, you will more than likely do whatever it takes to get it working properly again. You don’t want to have to fix it by yourself, so your first move should be to find a company you can trust. We are that company at Total Home Environmental. We have been in the business for years, so we really know our way around air conditioners, heaters, and HVAC in general. You can call us at 310-554-6477 to find out more about us and to see why you should turn to us as your next air conditioning company in Torrance, CA.

...
Showing 1-10 of 982
FAQs for window a/c unit installation projects in Signal Hill, CA

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.

The Signal Hill, CA homeowners’ guide to window a/c unit installations

From average costs to expert advice, get all the answers you need to get your job done.

See all articles
  • Technician repairing air conditioner
    After Hours Home Improvement, LLC - Author/Reviewer
    •

    HomeAdvisor's Air Conditioning Repair Cost Guide gives the average price to fix an AC unit in your house. Find the cost of recharging the AC or fixing a freon leak. Get the price to repair or replace a compressor, handler, thermostat, duct, and more.

  • An AC system in the backyard of a house

    This guide explores the average cost of replacing your AC compressor and all of the factors that go into it, including size, type, and brand.

  • Detail of a HVAC system outside a brick house

    The cost of replacing an AC unit fan motor depends on warranties, labor, season, and more. This cost guide covers everything you need to know about this HVAC part.