Subfloor Repair or Replacement in Long Beach CA
Your home's foundation for beautiful, long-lasting flooring starts with a structurally sound subfloor, and Long Beach Elite Flooring delivers expert subfloor repair or replacement services throughout Long Beach and surrounding areas. A compromised subfloor creates numerous problems including squeaking floors, uneven surfaces, bouncy areas, and premature failure of finished flooring materials.
Subfloor repair or replacement requires specialized knowledge of building codes, moisture management, and structural engineering principles. Our experienced team accurately diagnoses subfloor problems, from minor squeaks and loose boards to extensive water damage, rot, and structural failures.
Long Beach Elite Flooring handles everything from simple repairs and reinforcement to complete subfloor replacement projects. Our comprehensive approach includes moisture testing, structural assessment, proper ventilation installation, and quality material selection tailored to your specific needs and local building requirements.
Whether you're dealing with water damage from plumbing leaks, pest damage, or general wear and deterioration, we provide honest assessments and lasting solutions. Our commitment to quality workmanship ensures your new flooring investment is built on a solid, stable foundation that will perform reliably for decades while protecting your property's structural integrity and value.
Our Subfloor Repair and Replacement Services
Comprehensive Subfloor Inspection
We begin every project with an in-depth examination of your subfloor to identify all issues affecting its performance. This includes checking for water damage, mold, rot, insect damage, and signs of structural weakness.

Our inspection involves both visual assessment and moisture testing to detect hidden problems. We also evaluate the levelness of the subfloor to ensure it meets installation standards for final flooring.
Partial and Full Subfloor Replacement
When subfloor damage is extensive, we offer both partial and full replacement options. Partial replacement targets only the damaged sections, preserving as much original material as possible while restoring integrity.
Full replacement is recommended when widespread rot, water damage, or severe subfloor deterioration compromises the entire area. We remove the old subfloor and install a new, durable one made from high-quality materials.
Joist and Structural Integrity Restoration
Beyond the subfloor itself, we inspect and repair joists to maintain your floor system’s overall structural integrity. Damaged or weakened joists can cause sagging or uneven floors, affecting safety and comfort.

We replace or reinforce joists as needed, addressing damage from moisture, pests, or wear over time. Our repairs focus on restoring load-bearing capacity and preventing future subfloor problems related to joist failure.
Common Subfloor Problems We Solve
We address a range of issues that affect subfloor integrity and performance. These include structural concerns, moisture-related damage, and material deterioration that compromise stability and comfort in your home.
Squeaky and Uneven Floors
Squeaky floors often indicate loose or improperly secured subfloor panels. Over time, nails or screws may loosen, causing movement that results in noise. Uneven floors can stem from poor installation or settling of the base structure beneath the subfloor.
We eliminate squeaks by securely fastening the subfloor with screws designed to reduce movement. For uneven areas, we level or replace sections to restore a flat, stable surface. This prepares the floor for any finish application and ensures long-lasting performance.
Water and Moisture Damage
Water and moisture are common causes of subfloor problems, especially in basements, bathrooms, and kitchens. Exposure to moisture can lead to warping, swelling, and eventually mold growth, affecting indoor air quality and floor durability.

Our approach includes thoroughly inspecting the subfloor for signs of water exposure. We repair or replace damaged sections and recommend measures like moisture barriers to prevent future damage. Timely action helps maintain the subfloor’s strength and stability.
Subfloor Deterioration
Subfloor damage can result from various factors including rot, insect infestation, and prolonged exposure to water. Rot weakens the wood fibers, making the floor unsafe. Insect damage, such as termites, can silently degrade the structure over time.

We provide expert assessment to identify the root causes of subfloor deterioration. Repair or replacement is performed depending on the extent of the damage. Regular maintenance and professional inspection can help avoid costly repairs by catching these issues early.
Techniques and Moisture Control
We use precise tools and proven methods to identify moisture issues early and prevent damage. Proper installation of moisture barriers is critical to protecting the subfloor from long-term problems.
Advanced Moisture Detection
We rely on high-quality moisture meters to accurately measure moisture levels in subfloors before and during repairs. These meters help us detect hidden moisture that can cause rot, mold, and structural weakening.
By pinpointing exact moisture spots, we prevent unnecessary replacements and address only affected areas. Our process includes assessing surrounding materials to ensure the entire flooring system is dry and stable before proceeding.
Moisture Barrier Installation
We install moisture barriers designed to block vapor from reaching wood or composite subfloor materials. This step is essential in coastal areas like Long Beach, where humidity and dampness are common.

Our moisture barriers are selected based on material compatibility and environmental factors. We ensure a tight seal around perimeter edges and seams to maximize protection. Using industry-standard products, we prevent moisture damage that can compromise floor integrity or lead to costly repairs.
Subfloor Repair or Replacement FAQs
How much does subfloor repair cost?
Subfloor repair costs typically range from $2 to $8 per square foot, depending on the damage extent and repair complexity. Simple repairs like securing loose boards or filling small gaps start around $2-3 per square foot, while extensive water damage requiring complete section replacement can reach $6-8 per square foot. Factors affecting price include subfloor material type, accessibility, structural damage severity, and whether floor covering removal is required.
What's the best subfloor contractor near me?
Long Beach Elite Flooring specializes in professional subfloor repair and replacement for residential and commercial clients throughout the Long Beach area. Our experienced team diagnoses subfloor problems accurately and provides lasting solutions using quality materials and proven techniques. We understand the structural importance of proper subflooring and its impact on finished flooring performance. We're fully licensed and insured, with expertise in various subfloor materials including plywood, OSB, and engineered lumber systems.
How long does subfloor replacement take?
Most subfloor replacement projects take 1-3 days to complete, depending on the area size and damage extent. Simple repairs for small residential areas often finish in 4-8 hours, while extensive replacement of large damaged sections may require 2-3 days. The timeline includes existing flooring removal if necessary, damaged subfloor removal, new material installation, and preparation for finish flooring.
Do you repair water-damaged subflooring?
Yes, Long Beach Elite Flooring specializes in repairing water-damaged subflooring, from minor moisture issues to extensive flood damage. We assess the damage extent, remove affected materials, and address any underlying moisture problems before installing new subflooring. Our process includes mold prevention treatments and proper moisture barrier installation to prevent future issues. We work with insurance companies when applicable and ensure all repairs meet building codes.
What are signs that my subfloor needs replacement?
Common signs include squeaking or creaking floors, bouncy or spongy feeling when walking, visible sagging or uneven areas, and gaps between floorboards. Water stains, musty odors, or visible mold indicate moisture damage requiring immediate attention. Loose or protruding nails, cracked subflooring, and floors that feel cold or drafty also suggest subfloor problems.