New Foundation

For new construction, the foundation is the first place to start. We are available to bid on your already completed foundation plans or we can start from scratch with our in-house engineer!

FOUNDATION REPAIR

Foundation Replacement

Over time, foundations can deteriorate from various causes, water being one of the most common. When a foundation has horizontal cracking, multiple vertical cracks less than 6 feet apart, or spalling (deterioration due to water intrusion) foundation replacement is often the best solution!

Posts & Piers

Post/piers are the support system along the girder lines that support the interior flooring and framing. They consist of a concrete footing supporting a concrete pier, and a 4x4 pressure treated wood post that connects to the girder line. If these are not constructed properly, they can sink or deteriorate over time resulting in sloping floors and cracking in the interior drywall.

FLOOR LEVELING

A lift in your laminate floor can also be caused by the way the floor's planks or joints were fitted together upon installation. If they were hammered or tapped together too tightly, this can lead to a "peaking" and then a warping in the boards. The lifting can also be due to something as simple as an uneven subfloor.

Finished floor level (FFL) refers to the uppermost surface of a floor once construction has been completed but before any finishes have been applied. Floor levels and other vertical dimensions are usually expressed in metres to three decimal places.

Underpinning Pads, Caissons, and Piles

A lift in your laminate floor can also be caused by the way the floor's planks or joints were fitted together upon installation. If they were hammered or tapped together too tightly, this can lead to a "peaking" and then a warping in the boards. The lifting can also be due to something as simple as an uneven subfloor.

Finished floor level (FFL) refers to the uppermost surface of a floor once construction has been completed but before any finishes have been applied. Floor levels and other vertical dimensions are usually expressed in metres to three decimal places.

Foundation Bolting

SERVICES

underpinning pads

caissons

1. Set a date for an INSPECTION with one of our SPECIALISTS. One of our QUALIFIED INSPECTORS will visit your property for a proper and detailed Foundation or Soft Story inspection. You can book online here or visit www.omegastructuralinc.com/bookonline

2. We will send you our detailed PROPOSAL. You can review our proposal and of course we are open for any questions or concerns that you might have. We will be more than happy to answer all of your inquiries.

3. We will take care of your PROJECT. We will handle AS BUILT DRAFTING, DESIGNS and ENGINEERING CALCULATIONS of your PROJECTS.

4. We will get your property plans ready for you. We will also get the PERMITS and APPROVALS for your city*!! So, you can RELAX!! *LA County and surrounding areas.

5. Job Walkthrough. The project manager will conduct the Job Walkthrough with the property owner or property manager to notify and show about the work to be executed and what to expect.

6. Notification to tenants. We will notify your tenants if applicable with the job schedule to proceed with the construction.

7. A temporary foundation is constructed to bear the weight of the building. 

8. A tight beam is a new beam that is constructed to the existing foundation. Once the beam has been pushed in, the gap between it and the foundation wall is sealed with strong cement mortar.

9. Once the temporary foundation is in place and has been checked, a pit can then be dug by hand below and around the existing building. 

The primary purpose of earthquake retrofitting is to keep your home from being displaced from its concrete foundation — making the building safer and less prone to major structural damage during an earthquake.

 

Existing homes need to be retrofitted because our understanding of the effects of earthquakes as well as construction techniques have improved after the homes were built.

According to Chapter A-3, it allows the following: 

  • A plan for houses who sit on top of their foundations (Bolt only)

  • A plan for houses with cripple wall 4 ft tall or less (Brace & Bolt Retrofit) 

  • An engineered solution for cripple walls that exceed 4 ft. tall up to 7 ft. (Engineered Solution)

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Block Wall or Brick Foundation

With any lateral movement, a Block Wall or Brick Foundation is likely to buckle. It already has gaps in the joints and the mortar breaks down over time. We will replace a block wall foundation with a newly poured foundation and add extra reinforcement to prevent a collapse in the event of a major earthquake.

Stone Foundation

Homes built with stone foundations are similar to the block wall foundation. They deteriorate over time and don't have a deep enough footing to stop any settling or movement of the home. They are also very likely to fail in the event of a major earthquake.

 

Foundation

In engineering, a foundation is the element of a structure which connects it to the ground, and transfers loads from the structure to the ground. Foundations are generally considered either shallow or deep. Foundation engineering is the application of soil mechanics and rock mechanics in the design of foundation elements of structures.

Purpose

Foundations provide the structure's stability from the ground:

- To distribute the weight of the structure over a large area in order to avoid overloading the underlying soil (possibly causing unequal settlement).


- To anchor the structure against natural forces including earthquakes, floods, frost heaves, tornadoes and wind.


- To provide a level surface for construction.


- To anchor the structure deeply into the ground, increasing its stability and preventing overloading.


- To prevent lateral movements of the supported structure (in some cases).

Requirements of a good foundation

The design and the construction of a well-performing foundation must possess some basic requirements that must not be ignored. They are:

- The design and the construction of the foundation is done such that it can sustain as well as transmit the dead and the imposed loads to the soil. This transfer has to be carried out without resulting in any form of settlement that can result in any form of stability issues for the structure.


- Differential settlements can be avoided by having a rigid base for the foundation. These issues are more pronounced in areas where the superimposed loads are not uniform in nature.


- Based on the soil and area it is recommended to have a deeper foundation so that it can guard any form of damage or distress. These are mainly caused due to the problem of shrinkage and swelling because of temperature changes.


- The location of the foundation chosen must be an area that is not affected or influenced by future works or factors.

Design

Foundations are designed to have an adequate load capacity depending on the type of subsoil/rock supporting the foundation by a geotechnical engineer, and the footing itself may be designed structurally by a structural engineer. The primary design concerns are settlement and bearing capacity. When considering settlement, total settlement and differential settlement is normally considered. Differential settlement is when one part of a foundation settles more than another part. This can cause problems to the structure which the foundation is supporting. Expansive clay soils can also cause problems.

Ways OMEGA Structural, Inc.

Can Help:

Foundation Inspection 

We provide foundation inspections for homes & apartment buildings to homeowners building owners and realtors.

Free inspection for homeowners.

Realtors $150 Fee

Methods for Repairing Foundations:

1. Jack and Lift

When regions of the home are bending or not level, we can jack and lift to improve floor evenness.

2. Sister Foundations

A new foundation is put in along the inside of the present foundation, and then bolted into the existing.

3. House Bolting

Bolts added along mud sill to prevent home from sliding off of your foundation in the event of major earthquake.

4. Concrete Foundation Repair

Many homeowners or realtors aren’t aware of the possibility that their home’s foundation might contain a structural problem. Whether it is a crack on your exterior walls or foundation walls, we have the knowledge to recognize the problem and solution and the skills to repair it.  If you are a home owner and have any doubts, feel free to contact us. Our inspectors are highly trained to analyze your foundation and inform you on what is needed.

5. Foundation Underpinning

Foundation underpinning is a reparation process that reinforces foundations that have been destabilized for a range of reasons. In the process of underpinning, the area underneath the load of the foundation is repaired or strengthened. Underpinning comes in many forms and suits different kinds of repair tasks. In order to make the right choice, it is necessary to comprehend the structure of the foundation, the maintenances which are required, and what can cause the foundation to be damaged.

6. Foundation Replacement

When the current foundation is no longer supportive, it can be removed and replaced with a new one. The house will be shored securely (Temporarily add structures to support the load of the home). This will allow the removal of the foundation without damaging the house. There is no need to actually elevate the house off its foundation.  The old foundation is removed. A trench is made to accommodate the new deeper footing. The old mudsill is normally replaced with new, larger treated lumber to allow installation of appropriate foundation bolts.

Rebar is installed in the new trench elevated above the soil with concrete spacers. Wooden forms are built to contain the concrete. Concrete is poured, and after concrete reaches proper strength, the wooden forms are removed. Framing anchors are installed to attach the new blocking to the new mudsill. The stucco or siding at the foundation area may need to be patched and painted to match the rest of the exterior.

7. Caissons

Caissons or in some cases called piers, are created by auguring a deep hole into the ground, and then filling it with concrete. Steel reinforcements are sometimes utilized for a portion of the length of the caisson. Caissons are drilled into bedrock. When caissons rest on soil, they are generally “belled” at the bottom to spread the load over a wider area. Special drilling bits are used to remove the soil for these “belled caissons”. It is a form of deep foundation that is constructed above ground level, then sunk to the required level by excavating or dredging material from within the caisson.

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FOUNDATION