Spray Foam Insulation in San Dimas, CA

Find top-rated spray foam contractors and save up to 35% on energy bills

💰 Estimated Energy Savings in San Dimas

35%
Average Energy Savings
Typical range: 30% - 40%
$1,596
Estimated Annual Savings
Based on $380/month average energy cost
4 years
Average Payback Period
Return on investment timeline

Note: Actual savings vary based on home size, current insulation, energy rates, and climate conditions. These estimates are based on Department of Energy data for Cold.

Verified Contractors in San Dimas

Simple Value Insulation

Direct: 9093163725

5
5 Google reviews

Recent Reviews:

Fabian Todd★★★★★2 weeks ago

Choosing Simple Value was a smart, easy decision. We wanted to improve our home's efficiency without a major renovation or budget. They provided exactly that—a valuable upgrade done simply and professionally. The crew worked quickly, cleaned up all debris, and even gave us a few maintenance tips. Our energy bills have started to decrease, and the house feels cozier. It's the definition of a high-value, low-hassle home improvement.

Wilson Asa★★★★★2 weeks ago

I am so pleased with the simplicity and results. The entire experience with Simple Value Insulation was hassle-free. The quote was easy to understand with no hidden fees, scheduling was simple, and the crew that did the work was skilled and polite. They did a thorough job air sealing and insulating our attic. The improvement in our home's ability to maintain temperature is significant. Finally, a contractor that focuses on providing core value without any fluff.

Olivia Gelb★★★★★2 weeks ago

We hired Simple Value Insulation and the name couldn't be more accurate. The process was straightforward: a clear, no-pressure consultation, a fair and simple quote, and a professional installation. The crew was on time, worked efficiently, and left everything clean. They focused on doing the core job well—sealing our attic and adding quality insulation. Our home is noticeably more comfortable, and the value for the money is excellent. No complications, just great value.

Whole House Insulation

Direct: 7147875309

5
1 Google reviews

Recent Reviews:

Carolyn Lyons★★★★★4 years ago

All

Direct: 6266541537

5
5 Google reviews

Recent Reviews:

Darius P★★★★★a month ago

This insulation contractor truly stands out from others I’ve worked with in San Dimas. Every person I spoke with was friendly and showed real care for my needs and the work being done. Communication was clear, they arrived on time as promised, and they really know their stuff when it comes to insulation and energy efficiency. They installed a new air conditioning unit and furnace, sealed up the ductwork, added high-quality insulation throughout my home, and made sure areas around the recessed lighting were properly sealed. Everything went smoothly without any problems, which is rare in my experience. I would highly recommend this insulation company to anyone looking to improve their home’s comfort and efficiency, especially in the warm California climate.

Collin N★★★★★a month ago

As a new homeowner in San Dimas, we ran into some unexpected problems with our crawlspace. We needed to get new sub-flooring, have all the insulation re-installed, and replace the crawlspace vents. All took care of everything quickly and efficiently. Ruben and the rest of the crew showed great attention to detail and really knew their insulation work. The quality of their work was excellent and their customer service was outstanding. Communication was friendly and professional throughout the whole process, which made everything go smoothly. It’s easy to see why they get such great reviews. I would definitely recommend them for any crawlspace, insulation, or attic projects you might have.

Vincent Walls★★★★★3 weeks ago

I’m really happy I chose this insulation contractor for my project! I had them install blown-in insulation under the addition at the back of my house and in my old root cellar. The difference is amazing—those spaces used to be uncomfortably chilly, but now my mudroom stays much warmer. I also had them seal up around the doors and windows with caulk, which has really helped with drafts. The team, including Brady and Elias, was professional, punctual, and worked efficiently from start to finish. They kept everything clean and were very courteous throughout the process. I’m also glad they offered financing options with affordable monthly payments, which made the whole project manageable for my budget. I already notice savings on my energy bill since I don’t need to use the thermostat as much. I’m planning to hire them again to insulate my attic and basement when I’m ready. I really appreciate their excellent service and the energy rebates they helped me apply for. Highly recommended if you want to make your home more comfortable and energy-efficient!

Frequently Asked Questions — Spray Foam Insulation in San Dimas

How much can spray foam insulation save on heating and cooling bills in San Dimas?
Homeowners in mixed climates like San Dimas, CA typically see 20–30% reductions in total energy costs after spray foam installation. The savings come from both reduced heating in winter and reduced cooling in summer. The exact savings depend on your home's current insulation, size, and local energy rates, but most homeowners recoup the investment within 3–6 years.
Is spray foam better than fiberglass insulation for homes in San Dimas?
For most homes in San Dimas, CA, spray foam outperforms fiberglass significantly. Fiberglass batts insulate but do not air seal — meaning conditioned air still escapes through gaps. Spray foam both insulates and creates an airtight seal, addressing the root cause of energy loss. While spray foam costs more upfront, the performance difference in mixed climates makes it the better long-term investment for most homeowners.
Is spray foam insulation worth the cost?
For most homeowners, yes. Spray foam creates an air-tight seal that traditional insulation cannot match, reducing energy bills by 15–35% annually. It also adds structural rigidity, acts as a moisture and vapor barrier, reduces outside noise, and can increase home resale value. The higher upfront cost compared to fiberglass is typically recovered within 3–7 years. One important note: because spray foam creates a very tight building envelope, proper mechanical ventilation is important to maintain healthy indoor air quality and prevent interior moisture buildup. This is typically handled by an Energy Recovery Ventilator (ERV) — a system that brings fresh outside air in while pushing stale air out, recovering the energy from the outgoing air so you don't waste what you paid to heat or cool — or a Heat Recovery Ventilator (HRV), which works similarly but is optimized for cold climates. A qualified contractor will assess whether your home needs ventilation upgrades as part of the installation.
How much does spray foam insulation cost?
Spray foam insulation typically costs $1.00–$3.00 per square foot installed, depending on the type and your location. Open-cell foam runs $0.44–$0.65 per board foot, while closed-cell foam costs $1.00–$2.00 per board foot. A typical 2,000 sq ft home attic costs $2,000–$6,000. Most homeowners recoup this investment within 3–7 years through energy savings of 15–35% annually.
What is the difference between open-cell and closed-cell spray foam?
Open-cell spray foam is softer, less dense, and less expensive. It expands significantly and is ideal for interior walls, attics, and soundproofing. Closed-cell spray foam is denser, stronger, and provides a moisture barrier — making it better for exterior applications, crawl spaces, and areas prone to flooding or humidity. Closed-cell also has a higher R-value per inch (R-6 to R-7 vs R-3.5 to R-4 for open-cell). One key difference: open-cell foam allows some vapor movement, while closed-cell acts as a vapor barrier — an important consideration for your home's ventilation needs.
How long does spray foam insulation last?
Spray foam insulation is one of the most durable insulation options available, with a lifespan of 80+ years when properly installed. Unlike fiberglass batting which can sag and settle over time, spray foam maintains its shape and insulating properties indefinitely. It will typically outlast the building it is installed in.
How do I find a qualified spray foam insulation contractor?
Look for contractors who are licensed, insured, and have verifiable reviews. Spray foam requires specialized equipment and training — improper installation can cause off-gassing, adhesion failure, or fire hazards. Ask for references, verify their insurance, and get at least 2–3 quotes. A qualified contractor will also assess your home's ventilation needs — a tightly sealed spray foam installation requires adequate mechanical ventilation to prevent moisture and indoor air quality issues. FoamMatch pre-screens all listed contractors for licensing and insurance so you can compare verified professionals in your area.
How long does spray foam installation take?
Most residential spray foam jobs take 1–2 days depending on the size of the area. A standard attic takes 4–8 hours. After spraying, the foam cures within 24 hours, though most contractors recommend waiting 24–72 hours before occupying the space due to off-gassing during the curing process.
Does spray foam insulation need to be replaced?
No — spray foam insulation does not need to be replaced under normal circumstances. Unlike fiberglass insulation which degrades over time, spray foam maintains its R-value and air sealing properties for the life of the building. The only reasons to remove or replace spray foam are water damage, renovation work, or improper original installation.