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Window a/c unit installers in Union City

Avatar for Charlie's Handyman Service
Charlie's Handyman Service
37031 Dondero Way
New on HomeAdvisorNew on Angi
Approved Pro
Charlie's Handyman Service
37031 Dondero Way
New on AngiNew on HomeAdvisor
Approved Pro
14 years of experience
Free onsite estimate

Charlie's Handyman Service, 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.

Charlie's Handyman Service, 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.


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
238 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
228 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
231 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 Honey Homes
Honey Homes
123 Main St.
5.00(
1
)
Approved Pro
Honey Homes
123 Main St.
5.00(
1
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
4 years of experience

We're a totally new and different home care service for busy homeowners - trusted by 2k homeowners and named one of Business Insider's Top Proptech Companies of 2024! Get top-notch, reliable care all year long, with one go-to handyman to regularly tackle to-do's and take care of proactive home maintenance, plus the ability to schedule in seconds and track progress easily on the app. Our exceptional handymen set us apart. They are full-time employees who are vetted for skill, quality, and friendliness. Honey Homes handymen can tackle many around the house (caulking and grouting, furniture assembly, hanging and installation, closet adjustments, and more), and also minor electrical and plumbing (replacing light fixtures, outlet and switch replacement, smart home device installation, faucet replacement, and more). Get started with a free walk-thru at honeyhomes.com. We'll create a plan to tackle your to-do list and provide tips for your unique home. We'll then start crossing off items!

"Honey Homes has been a game-changer for me! Their dedicated handyman service has given me valuable time back in my day by taking care of all the household tasks that used to pile up. From fixing minor issues to handling bigger projects, they’re reliable, efficient, and save me so much hassle. It’s great knowing I can count on them to keep my home in great shape. Highly recommend!"

Devin G on October 2024

We're a totally new and different home care service for busy homeowners - trusted by 2k homeowners and named one of Business Insider's Top Proptech Companies of 2024! Get top-notch, reliable care all year long, with one go-to handyman to regularly tackle to-do's and take care of proactive home maintenance, plus the ability to schedule in seconds and track progress easily on the app. Our exceptional handymen set us apart. They are full-time employees who are vetted for skill, quality, and friendliness. Honey Homes handymen can tackle many around the house (caulking and grouting, furniture assembly, hanging and installation, closet adjustments, and more), and also minor electrical and plumbing (replacing light fixtures, outlet and switch replacement, smart home device installation, faucet replacement, and more). Get started with a free walk-thru at honeyhomes.com. We'll create a plan to tackle your to-do list and provide tips for your unique home. We'll then start crossing off items!

"Honey Homes has been a game-changer for me! Their dedicated handyman service has given me valuable time back in my day by taking care of all the household tasks that used to pile up. From fixing minor issues to handling bigger projects, they’re reliable, efficient, and save me so much hassle. It’s great knowing I can count on them to keep my home in great shape. Highly recommend!"

Devin G on October 2024


Avatar for E&D Landscaping Construction
E&D Landscaping Construction
North 20th Street
4.85(
13
)
Approved Pro
E&D Landscaping Construction
North 20th Street
4.85(
13
)
Approved Pro
Super Service Award
Customers say: Quick response
Recommended by 92% of Angi customers
Recommended by 92% of HomeAdvisor customers
1176 local quotes requested

10 years Landscaping and Gardening Experience Following Services Provided: -Tree Trimming -Weekly Maintenance -Gutter Clean Ups -Home Clean Ups -Timer Set Up -Planting -Pavers Installation -Artificial & Natural Grass Installation -Retaining Walls Installation - Pergolas Installation -Privacy Walls Installation

"I Hired E&D Landscaping for a Paver installation project. They came out and gave me a free estimate that was competetive. They communicated how they would complete the work and showed up on time. They had all of the required tools to complete the job properly. The crew worked efficiently and completed the job to high quality standards faster than I expected. They left the workspace clean. I would not hesitate to hire them again for other projects."

Greg B on January 2025

10 years Landscaping and Gardening Experience Following Services Provided: -Tree Trimming -Weekly Maintenance -Gutter Clean Ups -Home Clean Ups -Timer Set Up -Planting -Pavers Installation -Artificial & Natural Grass Installation -Retaining Walls Installation - Pergolas Installation -Privacy Walls Installation

"I Hired E&D Landscaping for a Paver installation project. They came out and gave me a free estimate that was competetive. They communicated how they would complete the work and showed up on time. They had all of the required tools to complete the job properly. The crew worked efficiently and completed the job to high quality standards faster than I expected. They left the workspace clean. I would not hesitate to hire them again for other projects."

Greg B on January 2025


Avatar for Comfort Energy Inc
Comfort Energy Inc
1465 N Milpitas Blvd
4.60(
116
)
Approved Pro
Comfort Energy Inc
1465 N Milpitas Blvd
4.60(
116
)
Approved Pro
Customers say: Quick response
917 local quotes requested
22 years of experience

Message from the Owner/ Founder: “As a third generation heating and air technician and retired 20 year veteran of fire and public safety, I wanted to create a service company that you could count on for its integrity and professionalism. When our service technicians arrive at your home, we want you to feel the same level of confidence and trust you get from a firefighter arriving at your home to help when you call 911. Our service technicians are professional, courteous, and well trained. I am comfortable allowing them into the homes of my families and friends who are firefighters, police officers and the public. Thank you for the opportunity to service your comfort needs and believing in our company. We look forward to a continued long relationship. Warm regards, Harry Abbott” Comfort Energy Inc is a full service provider of quality air conditioning and heating repair and installation. . Locally owned and operated, with over 30 years of experience. We are proud members of the Nexstar network of contractors. We specialize in helping homeowners make informed decisions to best meet your family's comfort needs. Spanish and Japanese spoken.

"We had a wonderful experience with Comfort Energy! The service person, whose name was Chance, did a thorough evaluation of the problem with a focus on saving us as much money as possible, to either repair or replace our 30-year-old heat furnace. He quickly determined that our inlet filter was too dense (it was a Merv 11 and should have been a Merv 8) and that that was probably causing the heater to go off an on every 5-10 minutes. He then tested and confirmed his hypothesis. He also performed a CO test to make sure there wasn't anything more serious going on. Finally, he gave us a good idea of replacement options, which we should probably do before the next Winter, but not necessarily right away. All in all, this is exactly the kind of assessment we needed, and it cost orders of magnitude less than what was estimated by the first service company we had come out. Chance was great, and Comfort Energy is our go-to for heating and cooling service and/or installation from now on."

Gary S on April 2025

Message from the Owner/ Founder: “As a third generation heating and air technician and retired 20 year veteran of fire and public safety, I wanted to create a service company that you could count on for its integrity and professionalism. When our service technicians arrive at your home, we want you to feel the same level of confidence and trust you get from a firefighter arriving at your home to help when you call 911. Our service technicians are professional, courteous, and well trained. I am comfortable allowing them into the homes of my families and friends who are firefighters, police officers and the public. Thank you for the opportunity to service your comfort needs and believing in our company. We look forward to a continued long relationship. Warm regards, Harry Abbott” Comfort Energy Inc is a full service provider of quality air conditioning and heating repair and installation. . Locally owned and operated, with over 30 years of experience. We are proud members of the Nexstar network of contractors. We specialize in helping homeowners make informed decisions to best meet your family's comfort needs. Spanish and Japanese spoken.

"We had a wonderful experience with Comfort Energy! The service person, whose name was Chance, did a thorough evaluation of the problem with a focus on saving us as much money as possible, to either repair or replace our 30-year-old heat furnace. He quickly determined that our inlet filter was too dense (it was a Merv 11 and should have been a Merv 8) and that that was probably causing the heater to go off an on every 5-10 minutes. He then tested and confirmed his hypothesis. He also performed a CO test to make sure there wasn't anything more serious going on. Finally, he gave us a good idea of replacement options, which we should probably do before the next Winter, but not necessarily right away. All in all, this is exactly the kind of assessment we needed, and it cost orders of magnitude less than what was estimated by the first service company we had come out. Chance was great, and Comfort Energy is our go-to for heating and cooling service and/or installation from now on."

Gary S on April 2025


Vivianos Painting
Based In
5.00(
4
)
Approved Pro
Vivianos Painting
Based In
5.00(
4
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
1444 local quotes requested

Vivianos Painting provides painting services in Oakland, CA, and the area. You can call for different painting, plumbing, and other services. I will be glad to help you! Residential Handyman Service, Painting Service, Plumbing Service, Small Siding Repair, Exterior Painting Piedmont CA; Albany CA; Orinda CA; Pinole CA; Moraga Town CA; Interior Painter, Painting Specialist, Immaculate Painting, Affordable Painting Contractors, Quality Painting Services http://vivianospainting.com/

"It was excellent. They were responsive and quick. I liked the quality overall."

Darryl G on March 2023

Vivianos Painting provides painting services in Oakland, CA, and the area. You can call for different painting, plumbing, and other services. I will be glad to help you! Residential Handyman Service, Painting Service, Plumbing Service, Small Siding Repair, Exterior Painting Piedmont CA; Albany CA; Orinda CA; Pinole CA; Moraga Town CA; Interior Painter, Painting Specialist, Immaculate Painting, Affordable Painting Contractors, Quality Painting Services http://vivianospainting.com/

"It was excellent. They were responsive and quick. I liked the quality overall."

Darryl G on March 2023


Avatar for Albert Nahman Plumbing, Heating, and Cooling
Albert Nahman Plumbing, Heating, and Cooling
3333 Martin Luther King Jr Way
4.45(
683
)
Approved Pro
Albert Nahman Plumbing, Heating, and Cooling
3333 Martin Luther King Jr Way
4.45(
683
)
Approved Pro
Customers say: Super punctual
2705 local quotes requested
44 years of experience

Albert Nahman Services was founded in 1981 and has been serving Berkeley, CA and it surrounding areas in all their plumbing and HVAC needs. Each of our technicians went through rigorous training so we can guarantee that you will be receiving the proper service. We are also insured and supply a warranty for our parts for five years and up to twenty years on an re-piping or sewer replacement. Call us now to make your appointment!

"It was fine but to expensive sorry Ivan’s affort that much"

Rene T on May 2025

Albert Nahman Services was founded in 1981 and has been serving Berkeley, CA and it surrounding areas in all their plumbing and HVAC needs. Each of our technicians went through rigorous training so we can guarantee that you will be receiving the proper service. We are also insured and supply a warranty for our parts for five years and up to twenty years on an re-piping or sewer replacement. Call us now to make your appointment!

"It was fine but to expensive sorry Ivan’s affort that much"

Rene T on May 2025


JP LANDSCAPING
New on HomeAdvisorNew on Angi
Approved Pro
JP LANDSCAPING
New on AngiNew on HomeAdvisor
Approved Pro
334 local quotes requested
24 years of experience

With over 15 years of landscaping and concrete business, we are here to help you with all your landscaping and concrete needs and dreams.

With over 15 years of landscaping and concrete business, we are here to help you with all your landscaping and concrete needs and dreams.

...
Showing 1-10 of 968

Window a/c unit installations FAQs

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 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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home air conditioner being recharged with freon
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A boy changing thermostat’s temperature using a smartphone
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Technician checking AC condenser
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