What Should You Know Before You Choose a Residential AC Repair Company?

It can be very stressful when you find out that you need a residential AC repair company. You might need a repair, or you might need a replacement. A qualified repair company can give you the information you need. You need to do your research and ask different questions to determine if the company is for you and can handle your project. Here are a few different things you should know before you choose a residential AC repair company.

  • License – Make sure the AC repair company is licensed and insured (bonded) in your area. This means they have to abide by certain standards and are more reliable. The insurance is there to protect you in case something happens, like an injury, on your property, to the worker when they are installing or repairing your air conditioning system. Any company that has these things should be able to give you a copy of their documentation. You need to make sure they actually have them so that you are protected.
  • Experience – You want to find someone who has been doing air conditioning repair for a decent amount of time. While it is great to give a new business a chance, when it comes to air conditioning repair, you want someone who has proven experience. You also want to deal with a company that has a good reputation and can give you good references.
  • Price – This is probably a big deciding factor when it comes to deciding which company to use. However, sometimes the least expensive company is not the best company. You need to compare other factors and do your research. Additionally, just because a company is expensive and is giving you the most expensive equipment, does not mean it is the best. You might not need the most expensive equipment, and you certainly do not want the cheapest. You want good quality for a fair price.

What To Look Out For

Do your research and find the company with a good reputation and reasonable prices, like with O.C. McDonald. There are various questions to ask to make yourself an educated consumer. This will make you have a better experience and know who to call if you have any future problems.

So, if you are ready to get started, Call us today at 408-295-2182.

What things should you take into consideration for building automation?

When considering an automation system for your buildings heating and cooling system, finding the correct information about your automation process can be difficult. This article will take you through some of the important facts that should be considered before beginning any automation process.

The first item that you should consider before beginning your automation process is the complexity of the project. Finding a balance between necessity and over-engineering will ensure that your project goes smoothly from start to finish. Before beginning a project, you should always get your system engineers to feel comfortable with the design and implementation of your automation system.

Avoiding unnecessary design changes and anticipating any building conditions are essential to keeping a project below budget and ahead of schedule. Another item that you should consider is that building automation systems are changing quickly. Technology that was implemented five to ten years ago is now becoming outdated and may require an upgrade.

Choosing equipment, such as interfaces and software, that will remain relevant in the near future will allow your automation project to be easily upgraded when required. Choosing system hardware and software that will be unsupported within the near future only generates more work and money for your company in the long run.

Choosing Your Controller Interface and Software

If the control interface is the heart of an automation project, then your software is the brain. When choosing these items, one should always consider:

  • System “Openness”
  • Simplicity of Programming
  • Maintenance

Each of these items is important in its own way, but together these items make your choice of hardware and software easier. When choosing a company to supply and support your project, you should always be aware that not all companies produce the same hardware and software. Some companies use proprietary software that requires a specialized technician to provide support.

These technician visits can be costly, and he added cost can eat away at maintenance budgets quickly. The simplicity of your programming is also a key factor in selecting your hardware and software. Being able to easily use the interface, as well as program simple conditions for your system to operate with, can reduce the chance of incorrect programming.

The ability to maintain your own equipment and software is crucial as well. Choosing an overcomplicated control unit can be more trouble than its worth. Ready to get started? Call us today at 408-295-2182

Are There Different Types of Contractors in San Jose?

There are general contractors and subcontractors in San Jose that can help you with all of your remodeling needs. Subcontractors offer trade-specific services such as HVAC, plumbing, or electrical. A general contractor can take care of everything and will make your life simple. You can count on them to take care of all of your remodeling needs giving you peace of mind that the job will get done right. By going with a general contractor, you can feel like someone is supervising all of the work that is being done on your project.

Benefits of a General Contractor:

  • Will be able to manage projects efficiently
  • Can work on a deadline
  • Has experience in the industry
  • Will be insured and licensed to protect you

General Contractors Can Do It All

General contractors can tackle all of the services needed to complete your project. You can talk with one company that will oversee everything so that you do not have to worry about hiring several different subcontractors. When you want to have peace of mind that your new building or remodeling project is going to be done right, a general contractor can manage everything.

By working with a general contractor, you can be sure that your work deadlines will be met. It can be hard to keep up with everything if you hire different subcontractors since they will all be working at different times and some may have to wait on the others to finish causing time conflictions. By hiring a general contractor, you can be sure that all projects will be well-planned and completed as fast as possible.

A general contractor will have experience in completing projects of all sizes. If you have a big project, you want to go with a company that has experience in overseeing other big projects. Always look for a reputable and experienced company that you can trust.

You can rely on a general contractor to be licensed and insured in all areas. You will be protected if anything happens on the job-site during the building or remodeling process. When you work with a general contractor, you will know that everything is going to be up to code.

When you are ready to start your project, go with a company that has a strong reputation in this industry. To schedule an appointment or to learn more about our services, call us at 408-295-2182.

Is a Need for Thermostat Repair Indicative of Other Potential Heating Issues?

A faulty thermostat can be very annoying during the winter and summer seasons. You need your HVAC system properly functioning during these seasons for a comfortable living. A thermostat that needs repair can be indicative of other potential heating issues. Here is how.

1. Debris and Dust

A thermostat that is dirty can lead to sudden system failure and erratic operation. To solve this problem, you need to uncover your thermostat, and gradually clean the internal components, including the switch contact surfaces and the bimetallic coil. First, you need to set the thermostat to its least setting and utilize a compressed air can or soft brush to clean the bimetallic coil. You then need to set the thermostat to the highest setting before cleaning the coil again. Finally, configure the thermostat to the setting you prefer.

2. Mismatched Components

Ensuring your heater operates properly needs proper matching of your thermostat to your furnace system. Thermostats with low voltage are mostly utilized in residential applications. Your thermostat has to be matched to your furnace system depending on the capacity, capability, and type of the heater. Setting up the wrong thermostat type can result in miscommunication and cause system failure. To ensure correct matching, consult HVAC professionals or bring your thermostat when buying updated or new equipment.

3. Poor Wiring

Aging and faulty wiring, disconnections, and loose connections can cause your thermostat to lose the connection to your cooling and heating systems. This leads to an interruption in service. In case your heater quits working properly, it is ideal to check the wiring of your thermostat. If you suspect wonky wiring, make the wiring firm and replace wires as needed, or consult with an HVAC professional.

4. Heat Anticipator Issues

A majority of non-digital, mechanical thermostats have an electrical resistor device at their center. This device is a small metal tab called a heat anticipator. It informs the thermostat when to switch off the furnace burners. When it fails to function properly, it may lead to the cycling on and off of your furnace more often than needed. If your heat anticipator is not properly set, it will need to be adjusted. However, mechanical thermostats have to be manually adjusted, usually using an amp meter in determining the correct setting. At times, you can lightly push the heat anticipator on both sides to solve the issue.


When a thermostat fails you, remember to verify these four issues before deciding to replace it. If you encounter this issue, call us now at 408-295-2182.

How do you know it is time to replace your HVAC compressor?

If your HVAC compressor is defective, you may be asking yourself this question: Is it time to replace your HVAC compressor? Like most people, you probably don’t have an answer to this question. Well, worry not. In this piece, we will give you five tell-tale signs that it is time to replace your HVAC compressor. Read on!

Warm air is one of the most obvious sign that your HVAC compressor needs a replacement. This problem can be caused by many things, including a broken compressor and Low Freon levels. If you are not getting cold air, call in a professional. They will inspect the HVAC compressor to determine if the problem is severe or not. If the repair is expensive, invest in a new HVAC compressor instead.

Are you getting cold air throughout your home or office but have noticed that your HVAC compressor is not filtering and pushing air out as it should? This could mean some things: the vents are blocked, or the compressor is damaged. While it’s possible to have an HVAC compressor expert fix these problems, they can be costly depending on the extent of the problem and the age of your system. If the repair costs are too high, you might want to consider buying a new unit.

Have You Noticed Leakages And Unusual Sounds?

Have you noticed leakages? While moisture around an HVAC compressor is normal, excessive leakage could be a sign of a severe problem. If you see large pools of water around your HVAC compressor or leakages, you may be having a bigger problem that you should address as soon as possible! Pools of water can damage your floor and can even pose a health risk to you and your family. Call a repair expert or replace the HVAC compressor right away!

Are you hearing an unusual sound coming from your HVAC compressor? Is it generating loud grinding, rattling, or squealing sound? These sounds often reflect a serious issue, which could be costly or too difficult to fix. Call a professional to help you determine what is causing the sounds. If it’s a serious issue, it’s time to look for repair professionals.

How old is your HVAC compressor? If it is too old, replace it. The average HVAC compressor lasts for 10 to 15 years. An upgrade will save you money and improve air quality in your home or office. The signs highlighted above are some of the most common signs of HVAC compressor failure. If you notice any of them, call us today at 408-295-2182.

When should you invest in a professional plumbing company?

Plumbers are a blessing to many homeowners. They help them install or maintain heating systems, fix sanitation systems, repair bathrooms, install air-conditioning units and so much more. But when exactly should you hire a plumber? Well, when the situations highlighted below arise, it is advisable to call an experienced, licensed, and knowledgeable plumber.

Low water Pressure in Your Water System

Low water pressure in your home or business can arise due to many things. The problem can be caused by a simple thing like a blocked faucet or closed shut-off valve. It can also be caused by more pressing issues such as water leaks and blockages. Calling a plumber will not only help you pinpoint and fix the cause of your low water pressure but also help you identify and address other issues that could cause low water pressure in the future.

No Hot water? Call A Plumber Immediately

Hot water problems could be due to high water pressure, improper settings, or a lack of proper tank maintenance. It could also be caused by a failed heating element or leaking valves and plumbing connections. Trying to fix a hot water problem on your own will do more harm than good. Call a plumber. They will be able to analyze the problem, determine the cause, and fix it.

Noise Problems

Is there noise coming from your water systems? How does it sound like? Is it a high pitched whine or a low popping noise? The noise you are hearing could be because of excessive build-up of sediment at the bottom of your tank. There are articles and inexperienced plumbers that will tell you that you can fix the problem by draining the tank to get rid of the sediments. This does not always work! Call professional plumbers: they will help you fix the problem once and for good.

Frozen Pipes

Are your pipes frozen? If they are, make sure you check them carefully to see if they have cracks. If they are cracked, call a plumber immediately before things go from bad to worse. If the frozen pipe is not broken, you can thaw it with a hairdryer. But it is important to note that this technique does not always work and will not solve the underlying problems.

Trying to fix plumbing problems using DIY hacks can take up a lot of your valuable time. They can also make the problem worse. If you encounter any of these problems, call us today at 408-295-2182. We will help you fix your plumbing problems using the latest technologies and the most effective plumbing methods.

Should You Be Using A Professional Plumbing Company?

There are many reasons why you should be using a professional plumbing company. The most important is because amateurs can end up making your problems even worse. When you have a plumbing emergency, it is important to get help as fast as possible so that your problems do not get worse.

Even small leaks can end up costing you money on your water bill and can also cause water damage to your property. By calling professionals to assist you, you can have peace of mind that your plumbing job is going to be done right the first time. Professional Plumbers Will: . Arrive quickly with the right tools to do the job . Have the experience needed to provide quality services . Be licensed and insured

Find Professional Plumbers Who Can Help Right Away

Professional plumbers will be ready to come to your property right away in an emergency situation. You can trust them to have the right tools and equipment to tackle plumbing emergencies of all kinds. They will be equipped with many items that you would not have laying around your house yourself and items that amateur plumbers would not invest in.

A quality plumbing company will be ready with high-tech equipment that can handle jobs of all sizes. Whether you are dealing with a leaky faucet, burst water pipes, or any other type of plumbing issue, professionals will be ready and able to quickly take care of your problems.

By hiring professional plumbers with experience, you can trust them to quickly resolve your plumbing concerns. Experienced plumbers will be able to quickly determine why you are having trouble. They can use their years of experience to find and repair your plumbing concerns so that you can get back to your normal routine.

Professionals will always be licensed and insured. You can feel good about hiring them to tackle your plumbing concerns knowing that they will be a reliable choice. When you hire a professional plumber with a good reputation, your plumbing issues will be fixed as fast as possible.

Professionals will have the know-how needed to handle your plumbing concerns in the most efficient way possible. If you are interested in learning more about our services or need to schedule a fast appointment, contact us today. We can take care of all of your plumbing concerns, so call us now at 408-295-2182.

How Air Handlers Actually “Handle” Air in Your AC System

What do air handlers do for your air conditioning system? It, quite simply, handles the air. What does this entail? Most air conditioning units, especially in Silicon Valley, are “split” units. This means that they have units both outdoors and indoors. The air handler covers the indoor section of the air conditioning system which is extremely vital.

The role of the handler is to distribute the air through the entire house. The handler unit for indoor air is made of an air coil, blower and filter. The handler brings air in, flows it through the coils (to heat or cool) and then expels it back into the house with the duct system. It is the portion of the AC system that makes sure the air that gets treated flows throughout the entire home.

Air Handler Parts

  • Blower The fan blower will “blow” the rest of the cooled air back throughout the home by using the duct ventilation system.
  • Air filter This filter is placed between the fan and the intake vent to make sure that the air brought into the unit is filtered before it gets cooled.
  • Coils The coils are what truly cool the air inside the house. This occurs when the housed refrigerant within the external unit is drawn out as a high-pressure and high-temperature gas into the internal air handler. A valve then transforms this gas refrigerant into a low-pressure and low-temperature gas that’s brought to the coils. These coils then make the air cooler that’s getting passed over the coils and into the system of ducts. This “used” refrigerant is brought back outside to the external system to start the cycle once again. In the majority of homes in Silicon Valley, the coils can get hotter as well to provide the “heating” portion of a home’s HVAC system.

Would it be helpful for you to use an air handler?

When you use a split-system heat pump or air conditioner, then yes, you would want to use an air handler. The air handler will make sure the air involved in the cooling or heating process is circulating. It’s the indoor component that handles air in conjunction with the outdoor part.

The evaporator coil will bring the heat out from the building to then blow the cooled air through a set of ducts in the building that are connected with the air handler. Call O.C. McDonald’s 24-hour live operator for more information on any questions about your HVAC system and schedule your appointment today at 408-295-2182.

Are there different types of HVAC units?

HVAC manufacturers have engineered several different kinds of HVAC systems that people can choose from depending on their local weather conditions and preferences. There are climates in the U.S. range from the subarctic climate in Alaska to the hot, arid conditions in the desert southwest. There are humid climates in between as well as those that are dry, from warm to cold.

The main kinds of HVAC systems include:

• Air conditioners.
• Heat pumps.
• Gas furnaces.
• Radiant heating systems.

Air Conditioners

All central air conditioners require ductwork to distribute cooled air. They include two copper coils, one that contains the chilled refrigerant and the other that removes the heat from your home that the refrigerant absorbs, called the condensing coil. They use one fan to circulate the air the evaporator coil cools and another to blow off the heat in the condensing coil that the evaporator coil absorbs.

Most air conditioners have two separate components. The indoor air handler contains the blower fan and the evaporator coil. An outdoor condenser contains the condensing coil and the compressor, which alters the refrigerant pressure and circulates it through the system.

Heat Pumps

A heat pump is nothing more than an air conditioning system that contains a reversing valve. The valve switches the flow of heat from summer to winter. During hot weather, the refrigerant absorbs the heat from the evaporator coil and sends it outside to the condensing coil. In the cold months, the process reverses. The condensing coil absorbs the heat from the outdoor air and brings it inside.

Heat pumps work well in just about every climate except Alaska and the northern tier states. They’re the most energy efficient of all HVAC systems since they can extract or supply at least three times more heat or cooling energy than they use.


Forced-air furnaces use natural gas, propane, or oil as fuels. They are the most common kind of heating system in the U.S. Like air conditioners and heat pumps, they blow heated air through the ductwork to warm the home. They’re inexpensive, easy to install, safe and relatively durable.

Radiant Systems

Radiant heating systems are the oldest ways of heating homes. They use a boiler to heat liquids that circulate through tubing placed in walls, floors or ceilings. They provide comfortable, long-lasting heat for homes in cold climates. They’re especially good for people with airborne allergies since they do not blow air.

If you’d like professional help choosing the best HVAC system for your home, contact us today at 408-295-2182.

How Do You Choose the Right Commercial Plumbing Company for Your Business?

There are a few features that set apart an excellent plumbing company from an ordinary one. When it comes to your business, you want to choose a company that you know will get the job done not only correctly but also in a speedy manner.

Since your business must be up and running for you to make money, a company that can work on a schedule is a must. Look for:

  • A company that specializes in commercial plumbing
  • A business that has experience
  • Good customer reviews
  • Upfront pricing

Find the Right Commercial Plumbing Company for Your Commercial Business

It can be a good start to find a plumbing company that specializes in commercial plumbing. This type of company will be aware of all of the different aspects that may come up with big commercial jobs and will be able to work quickly to get your company fully operational. Whether you are having problems with your commercial sinks, with a slab leak, clogged drains, or any other issues, a quality commercial plumbing can help.

Experience matters when it comes to finding the right plumbing company. It is important to find a plumber that has worked with other large businesses in the past. They will have the tools and skills needed to tackle big projects, and you can have peace of mind when hiring them that they will be able to take care of your entire plumbing project with ease.

A good reputation goes hand-in-hand with experience. You want to make certain that you hire a company that has worked well with other commercial businesses. When you see that a plumbing company has earned good ratings and has helped many other people in your community, you can feel good about hiring them to take care of your commercial plumbing needs.

Finally, find a plumbing company that offers upfront pricing. You want to have a good estimate of the costs of your plumbing services before you agree to anything. This will help you work plumbing installation, repair, or replacement services into your budget.

If you are interested in quality plumbing services, we are ready to answer any questions that you have and to schedule an appointment with you today. Go ahead and give us a call at 408-295-2182 right away to get started.