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Window a/c unit installers in Ontario

HVAC Heating & Cooling - Unlicensed Contractor
6764 Chadbourne Avenue
New on HomeAdvisorNew on Angi
Approved Pro
HVAC Heating & Cooling - Unlicensed Contractor
6764 Chadbourne Avenue
New on AngiNew on HomeAdvisor
Approved Pro
19 years of experience

We pride our company on reliability, great communication, integrity and quality work. We are experts in all of your Heating and Colling needs. We will do our best to keep you as educated as we can on your particular task or project. We look forward to working with you.

We pride our company on reliability, great communication, integrity and quality work. We are experts in all of your Heating and Colling needs. We will do our best to keep you as educated as we can on your particular task or project. We look forward to working with you.


Avatar for Clima Fresh HVAC - Unlicensed Contractor
Clima Fresh HVAC - Unlicensed Contractor
7443 Dempsey Ave
5.00(
6
)
Approved Pro
Clima Fresh HVAC - Unlicensed Contractor
7443 Dempsey Ave
5.00(
6
)
Approved Pro
1 years of experience
Free onsite estimate

I pride myself on my professionalism, as well as my ability to complete every job to the homeowner's total satisfaction. I never leave a job unfinished, or a homeowner not 100% satisfied with my level of se

"Me encantó su trabajo son personas profesionales en lo que asen me encanto su trabajo "

Alondra O on May 2025

I pride myself on my professionalism, as well as my ability to complete every job to the homeowner's total satisfaction. I never leave a job unfinished, or a homeowner not 100% satisfied with my level of se

"Me encantó su trabajo son personas profesionales en lo que asen me encanto su trabajo "

Alondra O on May 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
234 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 Angi
Approved Pro
RSF Construction Inc.
6910 Monte Verde Drive
New on AngiNew on HomeAdvisor
Approved Pro
223 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 McCormick Home Builders, Inc.
McCormick Home Builders, Inc.
23445 Haynes Street
4.25(
18
)
Approved Pro
McCormick Home Builders, Inc.
23445 Haynes Street
4.25(
18
)
Approved Pro
Customers say: True professional
237 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!

"We recently remodeled our bathroom with McCormick, and it was a fantastic experience. Khaled was informative, patient, and genuinely helpful, guiding us through choices for a perfect design. The team’s professionalism showed in their punctuality and quality. Every aspect was done with care, from tile placement to lighting. The transformation is truly impressive; the bathroom now feels open and luxurious. We’re beyond pleased with the result and look forward to more projects with them."

Geoffrey C H on January 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!

"We recently remodeled our bathroom with McCormick, and it was a fantastic experience. Khaled was informative, patient, and genuinely helpful, guiding us through choices for a perfect design. The team’s professionalism showed in their punctuality and quality. Every aspect was done with care, from tile placement to lighting. The transformation is truly impressive; the bathroom now feels open and luxurious. We’re beyond pleased with the result and look forward to more projects with them."

Geoffrey C H on January 2025


Avatar for Lenco Heating & Air Conditioning Inc.
Lenco Heating & Air Conditioning Inc.
11606 Exposition Blvd
4.62(
34
)
Approved Pro
Lenco Heating & Air Conditioning Inc.
11606 Exposition Blvd
4.62(
34
)
Approved Pro
Customers say: Quality work
441 local quotes requested
54 years of experience

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


Avatar for WB Handyman Service
WB Handyman Service
4409 Lyall Ave
4.76(
25
)
Approved Pro
WB Handyman Service
4409 Lyall Ave
4.76(
25
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
762 local quotes requested

General Contractor here to help you with all your construction needs such as concrete, remodeling, ADU's and much more

"excellent and speedy"

camille r on May 2025

General Contractor here to help you with all your construction needs such as concrete, remodeling, ADU's and much more

"excellent and speedy"

camille r on May 2025


Avatar for The Right Choice Heating & Air
The Right Choice Heating & Air
9421 Winnetka Ave
4.32(
150
)
Approved Pro
The Right Choice Heating & Air
9421 Winnetka Ave
4.32(
150
)
Approved Pro
Customers say: Super punctual
683 local quotes requested
12 years of experience

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


Avatar for SINCLAIR AIR SYSTEMS
SINCLAIR AIR SYSTEMS
721 E San Bernardino Rd
4.55(
11
)
Approved Pro
SINCLAIR AIR SYSTEMS
721 E San Bernardino Rd
4.55(
11
)
Approved Pro
Customers say: Super punctual
Recommended by 90% of Angi customers
Recommended by 90% of HomeAdvisor customers
878 local quotes requested

Call us for FAST SERVICE. At Sinclair Air Systems, quality and customer satisfaction have been at the core of our HVAC services for over 40 years. Founded by Rick over three decades ago, we're proud to have built a legacy of excellence in creating efficient climate systems at budget-friendly prices. Our team of hardworking, friendly professionals is committed to working with you to ensure the best possible service. Whether servicing all makes and models or providing free no-pressure bids on new equipment, we tailor solutions to meet your unique needs. We've been recognized for our outstanding service, reflecting our dedication to ensuring our customers enjoy their home or office climate year-round. As a family-oriented business, we believe in personal attention and the community values that make us a preferred choice in our region. Thank you for choosing Sinclair Air Systems, where customer satisfaction isn't just our goal; it's our promise

"I would like to share with you how I was treated by your company. In the month of December 2016. I purchased a heating system from your company. I do live in Oxnard and I know that is quite a way for your company but I do appreciate that you did that for me. All went down as planned and the guys that came out were very nice and helpful. But then a couple of years later the heater went out so I called your office to see if the heater was under warranty and to have someone come out and fix the problem. I spoke to Susan several times. The end result was that I lived too far and that your company was very busy and that I should find another heating company in my area. She was very rude to me and had very poor customer service. I did call another heating company and the problem was fixed after another $400.00. It was a transformer that went down. Susan said to me "you liked the price, right". I said yes. She said then I would suggest you look on yelp to find another company in your area. So unprofessional. I was in shock and didn't know how to respond."

Debbie H on October 2023

Call us for FAST SERVICE. At Sinclair Air Systems, quality and customer satisfaction have been at the core of our HVAC services for over 40 years. Founded by Rick over three decades ago, we're proud to have built a legacy of excellence in creating efficient climate systems at budget-friendly prices. Our team of hardworking, friendly professionals is committed to working with you to ensure the best possible service. Whether servicing all makes and models or providing free no-pressure bids on new equipment, we tailor solutions to meet your unique needs. We've been recognized for our outstanding service, reflecting our dedication to ensuring our customers enjoy their home or office climate year-round. As a family-oriented business, we believe in personal attention and the community values that make us a preferred choice in our region. Thank you for choosing Sinclair Air Systems, where customer satisfaction isn't just our goal; it's our promise

"I would like to share with you how I was treated by your company. In the month of December 2016. I purchased a heating system from your company. I do live in Oxnard and I know that is quite a way for your company but I do appreciate that you did that for me. All went down as planned and the guys that came out were very nice and helpful. But then a couple of years later the heater went out so I called your office to see if the heater was under warranty and to have someone come out and fix the problem. I spoke to Susan several times. The end result was that I lived too far and that your company was very busy and that I should find another heating company in my area. She was very rude to me and had very poor customer service. I did call another heating company and the problem was fixed after another $400.00. It was a transformer that went down. Susan said to me "you liked the price, right". I said yes. She said then I would suggest you look on yelp to find another company in your area. So unprofessional. I was in shock and didn't know how to respond."

Debbie H on October 2023


Avatar for Around The Clock Heating & Air Conditioning Inc
Around The Clock Heating & Air Conditioning Inc
7216 Varna Ave
4.54(
778
)
Approved Pro
Around The Clock Heating & Air Conditioning Inc
7216 Varna Ave
4.54(
778
)
Approved Pro
Customers say: Super punctual
731 local quotes requested
58 years of experience

Established in 1967, Around the Clock Air Conditioning and Heating, Inc. is a licensed, bonded, and insured Lennox Premier Dealer.. Over the last three decades we have grown into a full service Lennox dealership offering not only installation, but also service & repair, planned preventive maintenance, engineering, design & build installations and a host of other air management capabilities for a wide range of residential heating and air conditioning projects. Lennox Premier dealer. 100% Satisfaction Guaranteed. Additional phones - (818) 506-4400, (310) 274-5525 , (800) 434-9277 . Additional fax - (818) 989-7676. Additional DBAs - Around the Clock Heating A/C & Refrigeration, Around the Clock Refrigeration Service, Around The Clock Appliance Service, Around the Clock H V A C & Appliance Service.

"It was very fast service. He showed me how to change the filter which I had never done. It's hard to get to. He was very pleasant and the company very resonable."

Julie Z on September 2024

Established in 1967, Around the Clock Air Conditioning and Heating, Inc. is a licensed, bonded, and insured Lennox Premier Dealer.. Over the last three decades we have grown into a full service Lennox dealership offering not only installation, but also service & repair, planned preventive maintenance, engineering, design & build installations and a host of other air management capabilities for a wide range of residential heating and air conditioning projects. Lennox Premier dealer. 100% Satisfaction Guaranteed. Additional phones - (818) 506-4400, (310) 274-5525 , (800) 434-9277 . Additional fax - (818) 989-7676. Additional DBAs - Around the Clock Heating A/C & Refrigeration, Around the Clock Refrigeration Service, Around The Clock Appliance Service, Around the Clock H V A C & Appliance Service.

"It was very fast service. He showed me how to change the filter which I had never done. It's hard to get to. He was very pleasant and the company very resonable."

Julie Z on September 2024

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FAQs for window a/c unit installation projects in Ontario, 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.

The Ontario, 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.
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