Spray Foam Insulation in Alhambra, CA

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

Compare 7 verified spray foam insulation contractors serving Alhambra, California, backed by 456 customer reviews averaging 4.8★. Whether you're insulating a new build, retrofitting an existing home, or upgrading attic and crawl-space insulation, these pre-screened Alhambra 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 Alhambra

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 Alhambra

5⭐
9 Google reviews

Recent Reviews:

Justin Swanson★★★★★9 months ago

Once again, the team at Alhambra Insulation Masters provided exceptional service on my home. They applied foam insulation in my basement and successfully sealed an old root cellar that needed attention. Evan and Jay introduced themselves when they arrived, and they were very tidy, worked efficiently, and took the time to explain all the work they were doing. I've always had the same energy consultant for my projects, and I continue to be impressed. He came to assist Evan and Jay and showed real care for me, my dog, and my property each time he visited. I can't express enough how pleased I am with the company and their team. I highly recommend their services!

zachary berger★★★★★10 months ago

I reached out to Alhambra Insulation Masters after seeing great reviews about their services. I discussed my project, which was around 5,000 sq. ft., and received an estimate of $2,400, which I found to be an excellent price for a home that wasn't new construction. They sent Jay to inspect the area first, and I must say, he brought fantastic positive energy and was extremely polite and professional. The company is fortunate to have such a dedicated team member. I am very satisfied with the work done and wholeheartedly recommend them for your insulation needs. Reviews are essential for helping people make smart choices about businesses that truly deserve it. So, keep sharing your experiences, everyone! Wishing everyone good health!

Leilani Riley★★★★★2 weeks ago

Choosing Alhambra Insulation Masters was the best decision for our major renovation. We needed insulation for a new addition that matched the performance of the original home. Their team coordinated seamlessly with our builder and executed the work with master-level precision. Their attention to detail in air sealing and ensuring a continuous thermal barrier was remarkable. Living in the finished space, the comfort and quiet are exceptional. Worth every penny for master craftsmanship.

5⭐
77 Google reviews

Recent Reviews:

Alaine de Leon★★★★★3 months ago

Miguel and his team were referred to us by our HVAC vendor. We had them remove and replace the insulation in our home. Miguel, Adolfo and the crew were punctual and professional throughout the project. The entire project took 3 days and they did a great job of prepping our home, covering areas to protect and keep clean, removing the old insulation, and cleaning out any remaining debris before installing the new material. Adolfo took the time to explain what would happen during each part of the process including what things I can expect from having the work done. They were also good about the cleanup work when they finished. I already notice the difference in how much the new insulation is helping block out the heat inside my home. Hard working and dedicated crew. Would highly recommend using RAM for your home insulation needs.

LJ★★★★★4 months ago

Miguel’s team, Hector and Alfonso did an outstanding job of insulating our attic. They came bright and early and blew in insulation as well as laid rolls of insulation throughout our space. They were professional and courteous. They even had to deal with sharing space with a painting crew that was at our house to finish up a project. Super good folks and the insulation project was priced very competitively. Give Miguel a chance to bid for your business. You won’t regret it.

Melissa Elmasian★★★★★5 months ago

These guys are the best! We are 100% satisfied with their work. The men were on time, efficient, polite, cleaned up after themselves and completed the job in hours. They got right to work, never stopped and were super considerate of us being home. We had insulation put in the attic but first it needed to be cleaned out and I don't want to know what they found. It is sparkling and all new insulation installed quickly! I would highly recommend this company for insulation.

Recent Reviews:

NaDesha Enoch★★★★★7 months ago

5⭐
8 Google reviews

Recent Reviews:

Baron Piper★★★★★2 weeks ago

I am thoroughly impressed with the expertise and customer care. Armour Montebello Insulation provided a science-based solution, not just a product installation. Their initial diagnostic was thorough, and their crew executed the plan with precision. They were careful to protect our belongings and left the worksite cleaner than they found it. The results are undeniable: a cozier, quieter, and significantly more energy-efficient home. Highly professional and highly recommended.

Douglas Tyshawn★★★★★2 weeks ago

I can't recommend this company enough. After other contractors provided vague proposals, Armour Montebello gave us a clear, detailed plan that made perfect sense for our Montebello home. The installation team was punctual, respectful of our property, and incredibly tidy. They worked diligently and answered all our questions. The improvement in comfort is immediate, and we've already seen a positive impact on our energy bills. A trustworthy and highly skilled local business.

Brian Lana★★★★★2 weeks ago

Our experience with Armour Montebello Insulation was flawless from start to finish. The quote was transparent and competitive, scheduling was convenient, and the crew arrived right on time. They worked efficiently as a team, were courteous throughout, and cleaned up impeccably. The before-and-after difference in our attic and the resulting home comfort is astounding. This is a company that operates with integrity and delivers on every promise.

5⭐
176 Google reviews

Recent Reviews:

Christie Lesinski★★★★★3 months ago

In November 2024, we hired Top Energy to install ductless mini-splits in two studio spaces and the garage on our property. Leor was very responsive and knowledgeable, and helped us determine the location and size of the systems. Installation was one day; pricing was fair. The crew even returned to do several other handyman projects, which went well. Adding climate systems to these rooms has been a game-changer in how we use the space. Highly recommend Top Energy!

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.

Recent Reviews:

Sergio Brilhante★★★★★9 months ago

They were very easy to work with, they documented all the work. In less than a week I had someone evaluate the work needed and complete. They were also way more affordable than 2 other companies I contacted prior to them.

변재성★★★★★a year ago

This company is highly professional. They are punctual, professional, and efficient in their work. They removed old attic insulation, sealed air leaks around vents and lighting, and installed new rodent-proof insulation. The courteous workers handled everything, and our house was very clean when they left. I highly recommend this company.

Jeff Simmons★★★★★9 months ago

These guys are so amazing they show up on time. They do a good job and the price was good. I highly recommend them because they are licensed and they use all the professional tools and equipment.

3.6⭐
33 Google reviews

Recent Reviews:

Manjit Shahi★★★★★2 years ago

My appointment was at 0530 hrs but they start taking delivery from 0700 hrs. Early morning company trucks start loading for their jobs. Direction: if you coming from Barstow, from H-15 take left on 147 exit (Bear Valley Road) and left on I Ave and right on Catalpa St. Customer is on left side. Sign board posted on the building BDI installed. Park your truck, go inside of the building and back in when alley is free. Can park on the road at night buy no washroom available.

Jennepher McFarland★★3 years ago

Delivered a load here. I had to wait 30 mins for them to get propane for the forklift because they weren’t prepared for the day. They don’t have a dock. So took another 2 hours to unload my dry van. Nice people but not the best setup.

Richard Gee★a year ago

Be carefull when it comes to Roofdeck. There contract says Rood deck, but in reality they mean roofdeck only above living space, not the whole roof.

Frequently Asked Questions — Spray Foam Insulation in Alhambra

These are the questions Alhambra 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 Alhambra contractors above for exact quotes.

How much can spray foam insulation save on heating and cooling bills in Alhambra?▼
Homeowners in mixed climates like Alhambra, 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 Alhambra?▼
For most homes in Alhambra, 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 Alhambra, CA?▼
In Alhambra, 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 Alhambra costs $2,000–$6,000. Most Alhambra 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 Alhambra, CA?▼
When searching for a spray foam contractor in Alhambra, 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 Alhambra 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 Alhambra 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.