Flood damage restoration service – Tamalpais-Homestead Valley

Building owners in Tamalpais-Homestead Valley get hit with flood damage regularly. Whether you’ve been affected by a natural disaster or a localized catastrophe such as a building flood, Critical Control is standing by to respond 24/7.

The most common cause of water damage is when water gets into a structure or home by way of a flood, storm or ruptured pipe. Sometimes, the damage is obvious and evident. Other times, it’s more subtle or unreported.

The process of repairing water damage is more complex than just drying the interior. With modern professional techniques for water damage remediation Restoration companies like Critical Control can mitigate damage that would in the past would have required a complete reconstruction of the structure, or in the sense of demolish and rebuild.

Water Damage Restoration Guidelines Exist and you can call an Professional

Oftentimes, home or building owners attempt to deal with water damage by using DIY solutions available on the internet. This is a bad idea. There are guidelines to deal with water damage , and they require the tools and skills of professionals. These guidelines can be available in the IICRC Standard Reference Guide, or Professional Water Damage Restoration book. This guide exists because of the need for professional standards in cases involving water damage to buildings and homes as well as the risk they create.

Critical Control, a restoration company, can use the IICRC guidelines to help them assess the type and extent of the project’s damages.

There are a lot of reasons why water damage experts should follow these guidelines. There are instances that require us to bring in the services of an Indoor Environmental Professional (IEP). An IEP is a professional who has the knowledge and experience to evaluate the condition of a place, collect samples, get lab tests, and then provide us with the type of water damage.

This is particularly important when the building’s occupants might be at risk, is a possibility of negative health effects, the people who live there have a desire to know the suspected contaminants or have another reason to raise concerns about contamination.

Water damages caused by types and classes


Restoration projects for water damage are divided into two categories, depending on how extensive the water infiltration is.

The class has to do with how dirty the water entering the structure has been. The first category is water that is clean like a tub or sink or a burst water supply.

The category 2 water has significant levels of contaminants and has the potential to cause illness or discomfort if contacted or consumed. These include sources that are not usually considered to be an issue, like the discharges from washing machines, or toilet overflows.

Category 3 water is grossly polluted, meaning it could contain pathogenic, toxic or any other harmful agent in it. This usually means contamination from sewage, toilet backflows after the toilet trap and seawater, flooding from rivers and streams or any other water arising from the exterior of the building. This water may include heavy metals, pesticides or harmful substances.


The IICRC has also developed classes that we follow in measuring the amount of water intrusion to your property. This is basically setting guidelines for the level of saturation of the structure or the home.

The lowest level of water absorption and the highest amount of water is classified as Class 1. It is the case when water is in contact with less than 5% of the building materials that absorb water. This is usually the case where most of the substances affected by water have low evaporation, meaning, they do not absorb or hold water. Examples are concrete, finished/coated wood, plaster , or masonry.

Class 2 indicates that there is a significant absorption of water and intrusion. It means that anywhere between 5 and 40% of the combined floor, ceiling and wall is constructed of low-evaporation materials like plaster, concrete, wood, or masonry.

The porous materials, such as carpet, insulation and fiberboard, that make up the class 3 make up around 40 percent of the floor, wall and ceiling materials, with approximately 40% of the materials in Class 3. Other materials such as cement or plaster that don’t absorb water haven’t been affected in any way.

Water has been absorbed by materials like concrete as well as wood, plaster, and even wood, which are classified as Class 4. This requires special drying techniques and longer drying times.

How do you dry a water damaged building or house


Three ways to remove water from buildings are physical extraction, dehumidification and the process of evaporation. Removal of liquid water is at about 500 times more efficient than merely making do with dehumidifiers and air moving machines. The quicker the structure can dry, the better. The quantity of materials to be extracted can affect the extraction process as well as dehumidification methods.

Water damage experts utilize a variety of extraction techniques. We make use of a variety of tools , including subsurface extraction tools and self-propelled tools.

Forced Evaporation

After as much water is removed, the remaining moisture is dried with high-speed airmovers.

Submerged objects absorb water and moisture once it is moistened. The object gets wet or damp due to this.

Saturation is defined as the point at which it becomes impossible for the air to contain any moisture. Higher humidity means that the air is more close to saturation.

In the evaporation phase in which water molecules are ejected from a liquid state to a gaseous state. This is known as the process of evaporation.

This signifies that the object no longer absorbs water from the air. This is called the saturation point. When saturation has been reached the drying process commences.

In the process of evaporation high-efficiency air moves dry the object on two sides. They produce a powerful air flow over the surface of the object, that is controlled by a filter that is able to cover the entire surface of the object.

Air mover can move 10-20 times more air than an ordinary household fan.

Air movers dry objects about 10 times faster than in the natural environment, in which there is no air movement.

A high-velocity airflow dries the surface and absorbs the moisture drawn out by the air movers.

Use heat to assist the drying process.

One of the most essential elements in any water damage restoration project is the use of heat. In order to dry out any materials damaged by water, we use various types of heaters.

Electric Heaters: These heaters can be used for drying jobs that require multiple heating sources. This is due to the fact that they come in a variety of wattages, allowing you to use multiple heaters at the same time.

Electric heat can also be capable of being turned down or off while the job is in process, but without impacting other heaters. To maximize efficiency and lower your energy bills you can alter the wattage of one heater, while also increasing its wattage.

Electric heaters are a common feature in restoration projects because they produce essentially no emissions and use minimal amounts of water. However, the only drawback is they take longer to warm up, which means that they require more time to dry process in general.

Hydronic Bioler (TES): These boilers are extremely efficient in heating up quickly yet releasing very little emissions. They typically operate on natural gas or propane.

Hydronic boilers differ from electric heat in the sense that they don’t use forced-air to distribute heat. Therefore, it may be difficult to evenly heat a large area using these kinds of heaters. They are also able for dry work that does not require walls or ceilings to be able to stand in place.

In the event that electric heaters can’t be used, hydronic boilers can typically be utilized. They are capable of producing radiant heat and can keep your drying area warm without the requirement of an electric source.


We employ Low Grain Refrigerant Dehumidifiers (LGR) to help dry out buildings and houses that have suffered water damage.

The LGR Home Dehumidifier can draw 170 pints of water from damp structures which have suffered extensive water damage within 24 hours.

Apart from removing water out of the air, like an LGR Refrigerant Dehumidifier does this, the home dehumidifier can also remove up to 99percent of mold spores that are airborne in the air through the elimination of condensation.

Repairing Wood Floor Water Damage

Hardwood floors damaged by water have to be removed so that repairs can take place from the subflooring upwards.

The subflooring needs to be taken off and repaired before. The hardwood floors affected need to be sanded or replaced. Once these repairs are complete, the entire floor should be sanded and then refinished to ensure a uniform appearance.

Carpets are vulnerable to water damage

If you have had the misfortune of experiencing an incident of flooding in your home it could be a costly and stressful experience. Even if the water is eliminated from the area immediately, there is the possibility that you’ll have to replace the flooring in the future.

It’s devastating to discover that your home isn’t in the best state after having spent lots of time and money to fix it.

Because of this, it is crucial to determine the extent of damage as soon as possible. The first thing to do is to determine if the damaged area requires replacement. There is a good chance that the carpet will be cleaned and still used after it has dried and this will help eliminate some of the concerns about mildew growth and persistent odors.

Salvaging Carpet After a Water Damage Event

If the damage from water has been very severe there is a chance that you’ll see noticeable stains on your carpeting. In certain instances the only option to eliminate these stains is to replace the flooring. An odor that is persistent and strong may also be the reason to change your carpet. It’s time to replace your carpet padding and padding when this happens.

The next step in determining whether or not it is necessary to replace your carpeting is to determine whether the flooring can be professionally cleaned and dried. A professional company will aid you in determining the severity of the damage was. We will be able to determine if the carpet should be replaced or can be salvaged. Be aware that some methods used for drying can also further damage the carpet if it is already in bad condition.

Some of the considerations which will decide whether or whether the padding and carpet should be replaced include:

Are your carpets dry or cleaned professionally?

The carpet’s ability to stay clean can be affected if the padding beneath it has been damaged. Although your carpet has been dried in a short time, mildew growth can still occur if the padding underneath isn’t dried.

A professional carpet cleaning company is the best option to ensure that your carpet is dry and clean following a flood. When the firm has finished their job, you’ll be able to make a more informed decision about the condition of your carpeting and decide whether or not to change it.

Drywall Damaged by Water

The procedure for repair of drywall differs based on the extent of damage. Repairing water damage could be as easy as taking out some drywall and cleaning the area and then putting it back.

The other side is that serious damage could require a complete replacement of the wall, which includes fiberglass insulation and wall studs.

Mold spores can be found in drywall damaged by water that is difficult to remove. Therefore, in the majority of cases the drywall needs to be replaced. We utilize moisture testing tools to determine the amount of moisture. This allows us to pinpoint areas that are damaged and limit costs to only the areas that are damaged.

It also causes structural damage, as it causes the wood to expand and shrink. It is much more difficult to break wood if it is moistened by water. If the water remains for a long period of time, it could cause an abundance of rot in the wood, which could cause it to crack easily.


This issue can be prevented by homeowners and building owners taking immediate action to fix the structural damage caused by moisture-related issues that affect their property after a flood or other water-related damage.

Foundation Water Damage

There are numerous reasons why water damage can affect the foundation of a home. Although not all water problems could cause structural damage, it is important to address foundation issues as quickly as is possible in order to avoid any future structural damage.

Water damage to the foundation can cause a variety of problems depending on how it’s treated. If the issue isn’t taken care of quickly, it can result in structural damage that is severe.


Roof Water Damage

Water damage to roofs can result from natural disasters as well as foundation water damage. As well as the possibility of roof leaks, roof damage can also cause issues with the walls and foundation of a home or construction.

Leaking roofs are costly and can have serious drawbacks. A leak on the roof could cause mold and mildew to grow, which can be deadly. Leakage in the roof can also result in damages to the roof truss.

Leaks in your ceiling could cause your rafters to decay and soften if you don’t take action immediately. Electrical faults are also common in roof water damage, which could cause the possibility of an electrical fire. These are all good reasons to have roof water damage dealt with promptly following a flood or other type of unexpected damage.

HVAC Water Damage

Your home can be damaged structurally if your HVAC system is not working properly or the wrong equipment is installed. Without HVAC it is opening the interior of your house or business to all sorts of issues. The growth of mold can result in a range of health issues that are very serious.

Water damage to pipes

If you have pipe damage due to water, it is likely to be from a pipe that has burst in your home. Once you have determined that there’s been leak, it’s crucial for you to contact a professional to stop the water and make sure it doesn’t cause structural damage.

A ruptured pipe can result in serious damage. When your pipes break and water enters your home, causing severe damages and necessitating repairs for water damage – an event that could bring with it structural damages.

When you see damaged water pipes close off the water supply.

How much does it cost to repair the damage caused by water?

Water damage restoration cost per square foot

Depending on the square foot, water damage repairs and cleanup expenses vary. National Flood Services has the following pricing breakdown for each square foot:

Can Water Damage be covered by the homeowner’s insurance policy?

If the cause was sudden and unintentional the homeowners insurance policy will usually cover it. The Insurance Information Institute states that homeowners insurance can cover the repair or replacement of broken windows however, it does not cover damage caused by neglect.

Damage from neglect could be described as wear and tear on a surface or object due to exposure, insufficient preventative upkeep or general deterioration. The Insurance Information Institute in the United States states that homeowners insurance will not cover the damage caused by negligence.

A homeowners policy would not cover water damage caused by flooding. Flood insurance is mandatory. In some regions, flood policies are required by mortgage companies. Flooding can happen as a result of flooding, over-saturated ground, overflowing or surging bodies of water, such as lakes, rivers, ponds rivers, oceans, and streams together with high winds.