Insulation Contractor in California

RC Construction specializes in professional insulation services such as attic, crawl-space, and wall insulation using spray foam, fiberglass batts, and radiant barriers. Our team ensures precise removal and installation to eliminate drafts, control moisture, and slash your energy costs.

Our Insulation Services

Comfort • Efficiency • Durability

We help your home stay warm in winter, cool in summer, and save you money on energy bills.

  • Attic Insulation
    We start by checking your attic’s current insulation levels and sealing any cracks or holes. Then we spray closed-cell foam into rafter bays to block drafts, blow in cellulose to fill old cavities, and lay fiberglass batts where there is new framing. This layered approach stops warm air from rising out of your home in winter and keeps hot air from baking your ceilings in summer.
  • Wall & Rim-Joist Insulation
    Next, we focus on your walls and rim joists – the edges where your floor meets the outside. We inject open-cell foam into wall studs to fill every gap and use dense-pack cellulose to pack the rest tight. We seal the rim joist area with foam and weather-grade tape so no air leaks in or out. You’ll notice fewer drafts near baseboards and more even temperatures room to room.
  • Crawl-Space & Basement Insulation
    We treat crawl spaces and basements as key zones for heat loss and moisture buildup. Our crew applies spray foam to walls and band joists, rolls out heavy-duty vapor barriers on the floor, and fits insulated batts under the subfloor. This stops damp air from rising into your living spaces, protects wood framing from rot, and keeps cold floors from chilling the rooms above.
  • Radiant Barriers & Reflective Foils
    To fight California’s hot sun, we install reflective foil or foil-faced panels on your roof deck and attic floor. These radiant barriers bounce up to 97% of direct heat away before it even warms your attic. When combined with good ventilation, they dramatically cut heat gain in summer months, so your home stays cooler without overworking the air conditioner.
  • Insulation Removal & Retrofits
    Finally, we safely remove old or contaminated insulation using protective equipment and proper disposal methods. We clear out mold, dust, and pests before installing new materials that meet or exceed current R-value standards. This refresh not only boosts energy savings but also improves indoor air quality for a healthier home.

Our Insulation Process

1. Comprehensive Assessment

Thermal imaging and blower-door tests pinpoint leaks and weak spots.

2. Customized Plan & Estimate

Detailed scope outlining materials, R-values, and labor.

3. Prep & Air Sealing

Seal penetrations, gaps, and duct connections to maximize insulation effectiveness.

4. Professional Installation

Certified technicians follow strict safety protocols and manufacturer guidelines.

5. Quality Assurance & Testing

Post-installation blower-door retest and client walkthrough to confirm results.

Benefits of Professional Insulation

Start enjoying a cozier home and smaller bills with these key advantages.

Get Quote

Schedule an Insulation Assessment!

Call us today for a free inspection. We’ll show up, scope out your remodel or repair needs – roof, walls, kitchen, whatever, and give you a clear, line-by-line estimate with zero pressure and no hidden fees.

Get Your Free Insulation Estimate Today!

424-600-7710

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Why RC Construction for Insulation

Energy Savings Expertise

For over 25 years, we have helped homeowners from Fresno to San Francisco cut heating and cooling costs. We use blower-door tests and thermal imaging to find where heat leaks out or cold air seeps in. Then we add the right insulation to plug those gaps. You’ll see smaller energy bills and a cozier home all year long.

California Code Compliance

We follow Title 24 energy rules that set R-value targets for walls, ceilings, and floors in California homes. Our insulation meets or beats these standards, so your project passes inspection with ease. That means you enjoy better comfort, lower bills, and the confidence of a code-approved installation.

Moisture & Air Control

We seal cracks around windows, doors, and pipes before adding insulation. Our vapor barriers keep moisture out of walls and crawl spaces. This extra care stops mold growth and keeps wood from rotting. You get healthier air inside and a stronger home structure.

Our Happy Customers

2m+

Sccess Peoples