Spray Foam Insulation in Gardena, CA

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

Compare 7 verified spray foam insulation contractors serving Gardena, California, backed by 553 customer reviews averaging 5.0★. Whether you're insulating a new build, retrofitting an existing home, or upgrading attic and crawl-space insulation, these pre-screened Gardena contractors handle both open-cell and closed-cell spray foam. Homeowners here typically cut energy bills by around 35% — get free quotes and read verified reviews below.

💰 Estimated Energy Savings in Gardena

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 Gardena

5⭐
3 Google reviews

Recent Reviews:

Adeleye Festus★★★★★8 months ago

Gardena Thermal Insulation is a game-changer when it comes to keeping your space energy-efficient and comfortable. It offers excellent heat retention during cold seasons and keeps interiors cool during heatwaves. The materials are durable, eco-friendly, and easy to install—making it a top choice for both homes and businesses. If you’re looking for reliable thermal protection, Gardena delivers quality you can feel.

5⭐
176 Google reviews

Recent Reviews:

Kevin Krupitzer★★★★★2 months ago

When both of our AC units unexpectedly stopped blowing cold air Top Energy Solutions was able to get a tech out quickly to diagnose the problem. It was discovered our system had a leak in the lines running under a patio. Leor came up with a solution for us and the next day removed the old systems and installed 2 new systems. The crew was efficient, professional, and did quality work. Because of that we had Leor and his crew come back the next day and insulate the attic and install an attic fan. I couldn't be happier with the communication, efficiency, and professionalism of Leor and his crews!

M L★★★★★a year ago

Top Energy Solutions is the best contractor I have hired. Leor is responsive and professional. I acquired three quotes to have my HVAC system replaced. I accepted Leor’s quote, and the installation started, and was finished by the end of the next day - amazing. A crane was required to remove and replace the AC unit on a three story house. His installation crew was very friendly and very good natured. He beat the other quotes by more than two thousand dollars for the same equipment. Leor is a general contractor and has crews for most home repairs. I will be hiring Top Energy Solution again soon.

Yunan Miao★★★★★4 months ago

I had a great experience with Top Energy Solutions Inc when they replaced my old HVAC unit. They offered a very competitive price and were great with communication throughout the entire process. The team was knowledgeable, professional, and worked efficiently to get everything installed quickly and smoothly. Highly recommend them if you’re looking for reliable HVAC service!

5⭐
1 Google reviews

Recent Reviews:

Cliffid Kop★★★★★3 months ago

Great service.

Cayden Hugh★★★★★a week ago

Got three quotes for attic insulation and radiant barrier installation. Thermal Wrap was competitively priced but their knowledge set them apart. The estimator spent time explaining the science behind radiant heat transfer and why reflective barriers work differently than mass insulation. Installation crew was efficient and left zero mess. Our home stays cooler all day and the AC actually cycles off now. Great experience from start to finish.

Kaya Valery★★★★★a week ago

These experts are in a league of their own. We built a new home and wanted the highest performance possible, so we had Thermal Wrap Insulation seal and insulate all of our exterior walls and roof before the drywall went up. Their attention to detail was remarkable—creating a continuous thermal barrier with no gaps. Now that we live here, the difference is astounding. The house is silent, draft-free, and unbelievably efficient. This is next-level building science applied perfectly.

5⭐
3 Google reviews

Recent Reviews:

Gauthier III Trenton★★★★★a month ago

Hawthorne Insulation Pros did an excellent job. The team was professional, punctual, and very thorough. Our home is noticeably more comfortable and our energy bills have already started to improve. Highly recommend for quality work.

River Damari★★★★★2 weeks ago

The team at Hawthorne Insulation Pros did an outstanding job. They explained the process clearly and completed the work with great care. Our home now feels better insulated and more comfortable.

Kayden Nickolas★★★★★a month ago

Choosing Hawthorne Insulation Pros was one of the best decisions we made for our home. The staff was friendly, skilled, and very thorough in their work. They completed the project on schedule and ensured everything was done correctly. Our home now feels much more comfortable year-round.

5⭐
14 Google reviews

Recent Reviews:

Dean Enrique★★★★★a month ago

We chose Armour Hawthorne Insulation based on their strong local reputation, and they lived up to every bit of it. Their team was knowledgeable, honest, and focused on solving our specific comfort issues rather than just selling a service. The installation was flawless and the cleanup was impeccable. Our home is now cozy in the winter without the heater running constantly. The improvement in both comfort and energy efficiency has been dramatic. Highly recommended.

Abril Simone★★★★★a month ago

Our experience with Armour Hawthorne Insulation was excellent. From the initial consultation to the final walkthrough, everything was handled professionally. The crew was skilled, efficient, and respectful of our home. They transformed our under-insulated attic into a properly sealed thermal barrier. The results speak for themselves: a more comfortable living environment and lower monthly utility bills. A reliable and trustworthy company that does exceptional work.

Nico Alessandra★★★★★a month ago

We hired Armour Hawthorne Insulation to tackle our home's significant temperature imbalance. The team was outstanding from start to finish. They performed a comprehensive air seal in the attic before installing new, high-quality insulation. The attention to detail was remarkable. Now, our entire home is consistently comfortable, our energy bills have dropped, and the house is noticeably quieter. Professional, efficient, and highly effective. We couldn't be more pleased with the results.

5⭐
5 Google reviews

Recent Reviews:

Jordin Cristal★★★★★2 weeks ago

Living in a historic Compton home meant dealing with high energy bills and uneven temperatures. After careful research, we chose Compton Insulation Pros, and it was the best decision for our home. Their holistic approach—air sealing before insulating—is what sets them apart. Our home is now draft-free, and our HVAC system runs efficiently. The team was punctual, polite, and extremely proficient. I cannot recommend them highly enough.

Raymond Santiago★★★★★2 weeks ago

Exceptional quality from a local business. The office staff was helpful and responsive, and the field crew was phenomenal. They took time to explain the insulation options and helped us choose the best solution for our budget and goals. The installation was flawless, and our home feels like a new, well-sealed envelope. I've already referred them to family. A truly reliable and expert company you can trust.

Cloe Abigail★★★★★in the last week

The level of detail and care this company provides is remarkable. They didn't just add insulation to the attic; they meticulously sealed every wire penetration, plumbing stack, and gap in the top plates first—the critical step that many skip. Our home's ""building envelope"" is now truly sealed. The comfort improvement is immediate and profound. Thank you for your honesty and fantastic workmanship!

Recent Reviews:

Maggie Kaplan★★★★★a month ago

Omar and his team are incredible! They installed a complete new HVAC system in my 1950’s ranch style home. Prompt, communicative and professional. I would recommend them to anyone looking for a complete installation or just a tune up. Worth every penny for the peace of mind!! Thank you Omar!

Vincent Cravens★★★★★3 months ago

The company really cares that their employees do an all around excellent job. I previously used Service All-Stars to replace my heater. Now they have installed my A/C unit. They do excellent work.The techs were friendly and informative about the details of the work they were doing. I appreciate the fact the workers worked quietly and efficiently. The owner is receptive to constructive criticism which is a big plus in my book. I will continue to call upon Service All-Stars for my HVAC needs.

Dennis Cottone★★★★★a month ago

The team that Sal sent (Brandon and Evan) did a fantastic job on repiping my 60 year old house here in Long Beach. I found a leak in my tankless water heater closet and called them out to take a look. My house has a slab foundation and turns the leak was coming in from the main-line under the soil and then through the concrete to the water heater closet in the middle of the house. They dug down through the concrete and rather than just asking the guys to patch the galvanized pipes, I figured it best to do a full house re-pipe through my tight attic since the plumbing is 60 years old. Good thing because in the process, another leak was detected in the wall between my bathroom vanities. The guys were friendly and hard-working, the process took 4-5 days and I was informed of where they would have to cut through the walls to connect all the pipes. They definitley routed the pipes in the least invasive way. They also tuned up my HVAC system and tankless water heater while they were here. I would highly recommend Service All-Stars for your plumbing and HVAC needs. -DC

Frequently Asked Questions — Spray Foam Insulation in Gardena

These are the questions Gardena homeowners ask most about spray foam cost, R-value, and open- vs. closed-cell foam — with context for local pricing and roughly 35% typical energy savings. Compare the 7 verified Gardena contractors above for exact quotes.

How much can spray foam insulation save on heating and cooling bills in Gardena?▼
Homeowners in mixed climates like Gardena, 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 Gardena?▼
For most homes in Gardena, 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 in Gardena, CA?▼
In Gardena, CA and the surrounding area, spray foam insulation typically costs $1.00–$3.00 per square foot installed, depending on the type and your home's specifics. 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 in Gardena costs $2,000–$6,000. Most Gardena 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 in Gardena, CA?▼
When searching for a spray foam contractor in Gardena, CA, look for ones 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 Gardena 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 in Gardena 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.