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!
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
At Service King Air, we prioritize honesty, transparency, and your satisfaction above all else. Our team of certified HVAC technicians possesses impeccable expertise in commercial and residential HVAC service and repair, as well as HVAC system replacement and installation. With our commitment to top-notch service and customer satisfaction, you can trust us to be your source for a full line of quality HVAC services. Contact us today to experience the Service King Air difference.
"Jeorge(Owner) has been exceptional What you can expect is Quality Work +Education + Affordability+ sucessfull permit approval. Service king Air replaced our old unit with new Carrier 96% 2 stage furnace. He educated me on the options and gave me a good deal that no others could beat for same model. He stayed throught out the entire process till the inspection is completed. Stop thinking and go for them"
Sai B on February 2024
At Service King Air, we prioritize honesty, transparency, and your satisfaction above all else. Our team of certified HVAC technicians possesses impeccable expertise in commercial and residential HVAC service and repair, as well as HVAC system replacement and installation. With our commitment to top-notch service and customer satisfaction, you can trust us to be your source for a full line of quality HVAC services. Contact us today to experience the Service King Air difference.
"Jeorge(Owner) has been exceptional What you can expect is Quality Work +Education + Affordability+ sucessfull permit approval. Service king Air replaced our old unit with new Carrier 96% 2 stage furnace. He educated me on the options and gave me a good deal that no others could beat for same model. He stayed throught out the entire process till the inspection is completed. Stop thinking and go for them"
Sai B on February 2024
We are locally owned and operated, and serving the Bay Area. Our focus is residential air conditioning, heating, Installation of HVAC systems and full-service plumbing. We love working with homeowners and helping to take care of their precious homes. We also keep busy doing light commercial service. Serving California since 1954, financing options available, We don't charge extra for Saturday service calls.
"Called this company for their $77 dollar, which they advertised with a flyer, for a tune-up and cleaning for my heating system. They are a Hayward company and I was told that our Castro Valley home was not in their service area. I bet if I called to buy a new heater they would be out in a day."
Gregory O on March 2023
We are locally owned and operated, and serving the Bay Area. Our focus is residential air conditioning, heating, Installation of HVAC systems and full-service plumbing. We love working with homeowners and helping to take care of their precious homes. We also keep busy doing light commercial service. Serving California since 1954, financing options available, We don't charge extra for Saturday service calls.
"Called this company for their $77 dollar, which they advertised with a flyer, for a tune-up and cleaning for my heating system. They are a Hayward company and I was told that our Castro Valley home was not in their service area. I bet if I called to buy a new heater they would be out in a day."
Gregory O on March 2023
Air Sharks LLC provides a wide range of HVAC services for residential clients throughout the South Bay. In addition to installing, repairing, and maintaining heating and air conditioning systems made by industry leaders like Daikin and Lennox, the company offers various services that are designed to improve indoor air quality, including ductwork inspection and cleaning. Owner Khaled Alsaka credits much of Air Sharks’ success to its passion for transforming the HVAC process with insightful education, collaborative solutions and top-tier products. “As a pioneering force in the industry, we leverage our extensive expertise to provide our customers with seamless guidance,” he says. “Our dedication to excellence motivates us to continuously exceed expectations, ensuring every interaction reflects our unwavering commitment to delivering five-star service.” Air Sharks offers personalized consultations so it can provide each job with tailored heating and cooling solutions, which Mr. Alsaka says is important for ensuring positive results. “We take great pride in our craftsmanship and attention to detail. Every phase of our process allows us to showcase our expertise, resulting in highly satisfied customers who are eager to share their experience with others.
"Very professional in both sales of the right product AND flawless and timely installation. You can stop your searching for vendors...stop sns start with Air Sharks."
Michael S on March 2025
Air Sharks LLC provides a wide range of HVAC services for residential clients throughout the South Bay. In addition to installing, repairing, and maintaining heating and air conditioning systems made by industry leaders like Daikin and Lennox, the company offers various services that are designed to improve indoor air quality, including ductwork inspection and cleaning. Owner Khaled Alsaka credits much of Air Sharks’ success to its passion for transforming the HVAC process with insightful education, collaborative solutions and top-tier products. “As a pioneering force in the industry, we leverage our extensive expertise to provide our customers with seamless guidance,” he says. “Our dedication to excellence motivates us to continuously exceed expectations, ensuring every interaction reflects our unwavering commitment to delivering five-star service.” Air Sharks offers personalized consultations so it can provide each job with tailored heating and cooling solutions, which Mr. Alsaka says is important for ensuring positive results. “We take great pride in our craftsmanship and attention to detail. Every phase of our process allows us to showcase our expertise, resulting in highly satisfied customers who are eager to share their experience with others.
"Very professional in both sales of the right product AND flawless and timely installation. You can stop your searching for vendors...stop sns start with Air Sharks."
Michael S on March 2025
We are a family owned and operated Heating and Air conditioning and solar contractor in the Bay Area for the past 40 years. We specialize in Residential, Commercial, and New Construction installation. We pride ourselves in quality workmanship and fast reliable service at a fair price. We will not price gouge you like the big companies do. Call us for a free estimate, ask for Josh. 925-584-2634
"Josh got on this very quick and quoted the best price with good brand day and night carry"
jianyu d on November 2024
We are a family owned and operated Heating and Air conditioning and solar contractor in the Bay Area for the past 40 years. We specialize in Residential, Commercial, and New Construction installation. We pride ourselves in quality workmanship and fast reliable service at a fair price. We will not price gouge you like the big companies do. Call us for a free estimate, ask for Josh. 925-584-2634
"Josh got on this very quick and quoted the best price with good brand day and night carry"
jianyu d on November 2024
Looking for reliable Heating & A/C services in the SAN FRANCISCO BAY area? Look no further than Aire Serv of Campbell & Saratoga. Our team of experts is here to assist you with all your heating and A/C needs. With our exceptional service and attention to detail, we are dedicated to providing the best solutions for all your needs. Contact us today!
"Venice the technician was friendly and was able to quickly diagnose the problem which was the hose that connected to the pump broke and it looked pretty old. Since we couldn’t just replace the connector to the hose, getting a new part was the best choice."
Ed U on June 2025
Looking for reliable Heating & A/C services in the SAN FRANCISCO BAY area? Look no further than Aire Serv of Campbell & Saratoga. Our team of experts is here to assist you with all your heating and A/C needs. With our exceptional service and attention to detail, we are dedicated to providing the best solutions for all your needs. Contact us today!
"Venice the technician was friendly and was able to quickly diagnose the problem which was the hose that connected to the pump broke and it looked pretty old. Since we couldn’t just replace the connector to the hose, getting a new part was the best choice."
Ed U on June 2025
At 2Green Landscaping & Maintenance, we value our relationship with customers. We make it our priority to make sure you are well informed of any landscaping work you may need. Landscaping services should be predictably affordable, and leave lasting results. Furthermore, with 13 years of experience under our belt, you can trust that the job is going to be done right.
"Fantastic. I never thought my backyard would ever look so good."
Ann M on November 2024
At 2Green Landscaping & Maintenance, we value our relationship with customers. We make it our priority to make sure you are well informed of any landscaping work you may need. Landscaping services should be predictably affordable, and leave lasting results. Furthermore, with 13 years of experience under our belt, you can trust that the job is going to be done right.
"Fantastic. I never thought my backyard would ever look so good."
Ann M on November 2024
Dukes Heating & Air Conditioning is in HVAC business for 37 years now and continuously remains on the top of the industry. We do this by providing honesty and good workmanship that our customers love the most. We- Dukes Heating & Air Conditioning , also make sure that we have the latest technology that enables us to be more competitive & expert in the field and stand behind any work we have performed. Our in-house employees are all professionally trained and deliver only excellence to whatever project they work on.
"Great service"
Noah H on October 2023
Dukes Heating & Air Conditioning is in HVAC business for 37 years now and continuously remains on the top of the industry. We do this by providing honesty and good workmanship that our customers love the most. We- Dukes Heating & Air Conditioning , also make sure that we have the latest technology that enables us to be more competitive & expert in the field and stand behind any work we have performed. Our in-house employees are all professionally trained and deliver only excellence to whatever project they work on.
"Great service"
Noah H on October 2023
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.