We at MSP HEATING AND AIR focus on quality HVAC services over quantity. We use our years of experience and expertise, to complete your project with perfection. Customer service and honesty are the most important aspects of our business and your satisfaction is guaranteed! Please call us today for an estimate. We look forward to working with you! we keep your privacy
"Great service. Will use again for certain "
Mike L on September 2025
We at MSP HEATING AND AIR focus on quality HVAC services over quantity. We use our years of experience and expertise, to complete your project with perfection. Customer service and honesty are the most important aspects of our business and your satisfaction is guaranteed! Please call us today for an estimate. We look forward to working with you! we keep your privacy
The industry's best technicians make the happiest customers. Turn to the pros at All City Plumbing, Air, & Electrical for all of your plumbing, HVAC, and electrical needs. Proudly serving San Bernardino, Riverside, Los Angeles, and Orange Counties. We have over 5000s 5 star reviews across the web from our thrilled customers. Our company goal is to make sure that we have 100% customer satisfaction. We have options and payment plans that can fit in everyones budget. We provide free estimates and you only pay when you're happy. It's no surprise we've received the Angie's List Super Service Award six years in a row! Established in 2009. ACP was created to deliver exceptional service with the highest quality of craftsmanship. We guarantee you will be happy with our services in that we offer a money back guarantee. Our technicians are regarded by their peers to be some of the best in the industry. Our service experts are continuously trained. There isn't a plumbing or hvac problem we can't solve. We have the experience, knowledge and focus to solve any problem you may have. Give us a call today and let us earn your confidence.
"We had our hot water heater replaced and I'm impressed! They didn't charge me extra for calling after 5pm. I was scared of being charged for an emergency call. They texted info of the technician coming to my house. As a woman, I appreciate knowing WHO is coming to my home. I don't want just anybody coming with my child in the house. This is a great family company. They arrived as promised and promptly stopped the old water heater from flooding my garage. My new water heater works great! They fixed my pressure regulator and I can enjoy my house again!"
Catherine S on November 2025
The industry's best technicians make the happiest customers. Turn to the pros at All City Plumbing, Air, & Electrical for all of your plumbing, HVAC, and electrical needs. Proudly serving San Bernardino, Riverside, Los Angeles, and Orange Counties. We have over 5000s 5 star reviews across the web from our thrilled customers. Our company goal is to make sure that we have 100% customer satisfaction. We have options and payment plans that can fit in everyones budget. We provide free estimates and you only pay when you're happy. It's no surprise we've received the Angie's List Super Service Award six years in a row! Established in 2009. ACP was created to deliver exceptional service with the highest quality of craftsmanship. We guarantee you will be happy with our services in that we offer a money back guarantee. Our technicians are regarded by their peers to be some of the best in the industry. Our service experts are continuously trained. There isn't a plumbing or hvac problem we can't solve. We have the experience, knowledge and focus to solve any problem you may have. Give us a call today and let us earn your confidence.
"We had our hot water heater replaced and I'm impressed! They didn't charge me extra for calling after 5pm. I was scared of being charged for an emergency call. They texted info of the technician coming to my house. As a woman, I appreciate knowing WHO is coming to my home. I don't want just anybody coming with my child in the house. This is a great family company. They arrived as promised and promptly stopped the old water heater from flooding my garage. My new water heater works great! They fixed my pressure regulator and I can enjoy my house again!"
We take great pride in our experience, expertise, quality, and customer service that we provide to meet the consumer's needs. It is our mission to provide excellent workmanship and complete customer satisfaction from start to completion of a project. In order to understand the needs and expectations of our customers, we take great care to work and communicate with every customer in a professional manner. Our reputation is based on service, safety, and quality, regardless of how large or small the job. Over 30 years of experience in HVAC
"This pro is amazing. He worked with us and delivered just what was needed. All of this was in a timely manner. He is polite, courteous and friendly. I can’t praise him enough. I highly recommend this company."
Carol C on November 2025
We take great pride in our experience, expertise, quality, and customer service that we provide to meet the consumer's needs. It is our mission to provide excellent workmanship and complete customer satisfaction from start to completion of a project. In order to understand the needs and expectations of our customers, we take great care to work and communicate with every customer in a professional manner. Our reputation is based on service, safety, and quality, regardless of how large or small the job. Over 30 years of experience in HVAC
"This pro is amazing. He worked with us and delivered just what was needed. All of this was in a timely manner. He is polite, courteous and friendly. I can’t praise him enough. I highly recommend this company."
100% customer satisfaction is our top priority. Please check out our 2500+ 5 star reviews across the internet with an 5 Star A+ rating. Homeowners, expect nothing but the best from their HVAC contractor, and Magnolia Heating and Cooling is ready to exceed your expectations. Call today for AC or Heater Repairs, Replacement, Installation or any other service.
"As always, Magnolia exceeded expectations. Christian, my technician, was prompt, personable and proficient. I am more than satisfied with my service visit."
Rick B on August 2023
100% customer satisfaction is our top priority. Please check out our 2500+ 5 star reviews across the internet with an 5 Star A+ rating. Homeowners, expect nothing but the best from their HVAC contractor, and Magnolia Heating and Cooling is ready to exceed your expectations. Call today for AC or Heater Repairs, Replacement, Installation or any other service.
"As always, Magnolia exceeded expectations. Christian, my technician, was prompt, personable and proficient. I am more than satisfied with my service visit."
We can take on a wide range of residential and commercial electrical projects to include full installation for additions and remodels as well as wiring/panel upgrades, and a variety of other projects. We take pride in the quality of our work and our commitment to outstanding results. We look forward to building strong, long-term relationships with our clients and guarantee your satisfaction.
"Excellent honest and efficient. I would recommend. "
Edwin R on November 2025
We can take on a wide range of residential and commercial electrical projects to include full installation for additions and remodels as well as wiring/panel upgrades, and a variety of other projects. We take pride in the quality of our work and our commitment to outstanding results. We look forward to building strong, long-term relationships with our clients and guarantee your satisfaction.
"Excellent honest and efficient. I would recommend. "
We are small family operated company that has been in the HVAC industry for over 15years . We believe in honesty and good reliable timely service. As a licensed and certified company, we believe strongly in resolving any issues without up selling any unnecessary products and services. We treat every customer as if they are part of our family . CALL HD MECHANICAL TODAY for your free in home or business estimate.
"HD Mechanical did an excellent job. After trying to fix my water heater, the tech offered me two solutions, the first to repair the old unit and the second to replace it. I chose to replace the unit because it was 20 years old. He was able to return in two days and spend many hours at my home. The tech was courteous, professional, explained everything and made sure everything was working properly before he left. "
Judy N on December 2025
We are small family operated company that has been in the HVAC industry for over 15years . We believe in honesty and good reliable timely service. As a licensed and certified company, we believe strongly in resolving any issues without up selling any unnecessary products and services. We treat every customer as if they are part of our family . CALL HD MECHANICAL TODAY for your free in home or business estimate.
"HD Mechanical did an excellent job. After trying to fix my water heater, the tech offered me two solutions, the first to repair the old unit and the second to replace it. I chose to replace the unit because it was 20 years old. He was able to return in two days and spend many hours at my home. The tech was courteous, professional, explained everything and made sure everything was working properly before he left. "
We're dedicated to providing our clients with the very best in installation, service and repair for your heating and cooling needs. Our company is built on honesty and integrity. We specialize in central A/C and cooling systems as well as heating and furnace systems. We take pride in the quality of our work and our commitment to outstanding results. We look forward to building long-term relationships with our clients and guarantee your satisfaction. AVAILABLE 27/7 FOR EMERGENCY SERVICES! Give us a call today! (800) 987-4380
"They came and replaced both of our a/c units quickly and without any problems."
Paul S on July 2023
We're dedicated to providing our clients with the very best in installation, service and repair for your heating and cooling needs. Our company is built on honesty and integrity. We specialize in central A/C and cooling systems as well as heating and furnace systems. We take pride in the quality of our work and our commitment to outstanding results. We look forward to building long-term relationships with our clients and guarantee your satisfaction. AVAILABLE 27/7 FOR EMERGENCY SERVICES! Give us a call today! (800) 987-4380
"They came and replaced both of our a/c units quickly and without any problems."
Looking for top-notch handyman services? Look no further than lugo's construction! Our team of experts is dedicated to providing exceptional service and attention to detail. Contact us today for all your handyman needs.
"Did a great job with fixing a crack in my fascia trim, highly recommend. "
Pramod V on December 2025
Looking for top-notch handyman services? Look no further than lugo's construction! Our team of experts is dedicated to providing exceptional service and attention to detail. Contact us today for all your handyman needs.
"Did a great job with fixing a crack in my fascia trim, highly recommend. "
At Superior Air and Heating Services LLC, your year-round comfort is our top priority. Proudly serving the Inland Empire, we specialize in personalized HVAC solutions that go beyond standard heating and cooling.! Whether it is a fast AC repair, a complete system install, or routine maintenance, our licensed professional bring decade of experience and get it right the first time. What makes us different? We treat your home like our own- offering honest recommendations, competitive pricing, and service that is done right the first time. Our goal is not just to fix the temperature; it is to build lasting comfort and trust. Lets bring Superior Comfort to your home and business-call today!
"Abraham was Great knowledgeable and reliable. He made the repair really quick. "
SOFIA S on December 2025
At Superior Air and Heating Services LLC, your year-round comfort is our top priority. Proudly serving the Inland Empire, we specialize in personalized HVAC solutions that go beyond standard heating and cooling.! Whether it is a fast AC repair, a complete system install, or routine maintenance, our licensed professional bring decade of experience and get it right the first time. What makes us different? We treat your home like our own- offering honest recommendations, competitive pricing, and service that is done right the first time. Our goal is not just to fix the temperature; it is to build lasting comfort and trust. Lets bring Superior Comfort to your home and business-call today!
"Abraham was Great knowledgeable and reliable. He made the repair really quick. "
Welcome to Northstar Plumbing, Heating & Air Conditioning! We specialize in residential heating and cooling services. We take pride in our strong work ethic and attention to detail. Give us a call today!
"Very satisfied"
Laurinda L on October 2024
Welcome to Northstar Plumbing, Heating & Air Conditioning! We specialize in residential heating and cooling services. We take pride in our strong work ethic and attention to detail. Give us a call today!
"Very satisfied"
Laurinda L on October 2024
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Heating and Air Conditioning questions, answered by experts
You can protect your air conditioner in the winter by turning off the power at the thermostat and performing routine HVAC maintenance in the spring. Regular maintenance, cleaning, and repair of your AC unit helps protect it and extend its life span. If you have a window AC unit, remove it from the window and store it in a dry place during the winter. Window units cannot withstand freezing temperatures. Keeping them in your window also allows cold air to seep into your home.
If you have central air conditioning, it’s fine to run your AC all day if that’s what you want—as long as the AC unit is in good condition. But if your AC runs constantly when you don’t want it to, there may be a problem with your system (like the ones we’ve mentioned above). Window AC units and wall air conditioners aren’t as powerful as central AC, so you should only run those kinds of air conditioners for eight to 12 hours at a time.
There are a few ways to determine if a vent is open or closed. You can inspect the vent and examine the position of the fins. If there are spaces between them, the vent is open. If the fins are flat and touching, the vent is closed. You can also stand under the vent when the system is running to see if you feel air flowing through it.
No, a licensed local AC repair technician must replace AC coils due to the need to handle hazardous refrigerants. Attempting DIY poses risks to your personal safety, as most refrigerants are flammable and toxic. You also risk voiding your warranty with the HVAC company and causing damage to the unit.
While 72 degrees is a comfortable setting for many people, it’s likely not the most efficient temperature setting for your air conditioning unit. By pushing the temperature up to 75 or 78 degrees, you stand to save money on your energy bill. That said, these temperatures may be too warm to be comfortable for some people and are definitely too warm for most people to sleep comfortably.
The Highland, CA homeowners’ guide to heating and air conditioning services
From average costs to expert advice, get all the answers you need to get your job done.
If you’re having problems with your air conditioner’s condenser, it may be time for an upgrade. Learn about the cost to replace an AC condenser in this guide.
Exposed ductwork can be a smart choice even beyond aesthetics. Fortunately, exposed ductwork costs are relatively low, and easy access keeps repair costs to a minimum.
Your return air vent is responsible for removing warmer air, so testing it ensures you keep your environment comfortable and there are no HVAC problems.
