Spray Foam Insulation in Annapolis, MD

Find top-rated spray foam contractors and save up to 33% on energy bills

Compare 5 verified spray foam insulation contractors serving Annapolis, Maryland, backed by 1,034 customer reviews averaging 4.6★. Whether you're insulating a new build, retrofitting an existing home, or upgrading attic and crawl-space insulation, these pre-screened Annapolis contractors handle both open-cell and closed-cell spray foam. Homeowners here typically cut energy bills by around 33% — get free quotes and read verified reviews below.

💰 Estimated Energy Savings in Annapolis

33%
Average Energy Savings
Typical range: 28% - 38%
$1,426
Estimated Annual Savings
Based on $360/month average energy cost
5 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 Mixed-Humid.

Verified Contractors in Annapolis

5⭐
40 Google reviews

Recent Reviews:

Scott★★★★★a week ago

David, Flip and the removal/installation team were a pleasure to work with. I was given a detailed estimate with 4 options which were thoroughly explained to me. I decided to replace my fiberglass batten crawl space insulation with sprayed closed cell foam. The price was very reasonable and the crawl looks great! I highly recommend Elite!

Shawn Lee★★★★★4 months ago

The company gave me a very good price for the attic insulation installation. The only thing to know is that you have to do inspection after the work is done. They did not install enough insulation in my attic the first time. After I inspected the quality of the installation, I have to send email to describe the issue. They came back to fix the issue. They finally got the work done as I expected.

Giancarlo Angulo★★★★★3 weeks ago

David, Flip, and the Elite team were fantastic. Our home couldn't rise above 62ish degrees inside during the winter despite our heater working perfectly fine. David and Flip managed to address our concerns quickly and they maintained excellent communication throughout the process. After the Elite team came in and worked their magic, we have been at a comfortable 72 degrees even while the weather has been in the teens outside. From top to bottom, everyone we met was considerate, professional, and clean. We would recommend Elite to any of our friends who have need for improved insulation. Thank you for your help in making sure my family is comfortable at home!

5⭐
9 Google reviews

Recent Reviews:

Jake M★★★★★a week ago

This company added insulation to my attic, sealed the joist gaps and installed two high powered bathroom fans. Everything about the experience was great. Now that I’m at R49 i’m sure i’ll save at least 20% on my heating and cooling.

Mark M★★★★★4 months ago

Very happy with the work done by JT Insulation. They are a small crew, but they got the job done, worked with me and worked around my schedule, and I'm happy with the results. They cleaned out all the old stuff and put in new - I can feel the difference in the comfort of our house. Thanks you team!

Chris Ahrens★★★★★8 months ago

Jorge and his team did a great job air sealing and adding insulation to my attic. He was extremely detail oriented in his approach to identifying the issues, explaining the proper way to solve them and following through on everything he said. JT Insulation provides tremendous value for the money and I would highly recommend to anyone.

5⭐
950 Google reviews

Recent Reviews:

Brandon Unger★★★★★8 months ago

Working with everyone at DeVere was a true pleasure. I Dealt with Cindy, Luis, John, and all the guys on the crew. All of whom were extremely friendly and professional. The crew completed a ton of work in my house over the course of two days, and took care of my home as if it was their own. If you're looking for home comfort work, I couldn't recommend them enough!

Dane Honhart★★★★★2 weeks ago

Air sealing, exhaust fan ducting, and attic insulation. Great crew and really nice guys. Showed up right on time. Worked to get job done timely. Found a few issues that we did not know about (some air gaps) and took care of them. Walked me through the job at start and upon completion. Happy with the results.

Jason Br★★★★★4 months ago

DeVere and Francisco did an excellent job. Very thorough, professional and timely. My expectations were exceeded. Finishing work was very clean. Dust and debris was managed well will crew very respectful of my residence. Thank you.

4.6⭐
25 Google reviews

Recent Reviews:

Devin Fleet★★★★★2 years ago

Awesome Company. They are efficient and everyone is extremely delightful to work with. I had my new home insulated with them, and it felt more like a Partnership compared to being just a contractor. If there were 6 stars, they deserve 7!

charles lohoefer★★★★★4 years ago

The crew arrived on time were very professional and courteous. They went above and beyond to get into some hard to reach spots to make sure I got the best job possible and they left no mess behind Will definitely recommend them to friends and family. Thank you for a great job

C. E.★★★★★3 years ago

We got several different bids for different types of insulation products for our 1500+ square foot attic in North Bethesda, but Dennis Wilston of USI Carroll was by far the most professional and knowledgeable rep we met with. From the onset, he was thorough in his inspection, and patient with all of our questions. His quote was fair and even though we had to wait several weeks for our appointment, it was totally worth it. His crew did an amazing job airsealing and insulating the entire space. And left their work are perfectly spotless. The Montgomery County inspector even commented on how great a job Dennis' crew did. I just recommended this company to my neighbor and would not hesitate to call Dennis again. He is fantastic to work with and very old school in that he actually cares, and gives great service!

3.4⭐
10 Google reviews

Recent Reviews:

A Sommers★★★★★8 years ago

Outstanding company w/professional & courteous employees. We called on Thursday to have a spring replaced in our garage door, Andy called us back within an hour to schedule appt. & send proposal. Tuesday morning @9am Nathan & another gentleman showed up to do the work. They did a fantastic job, were done in less than an hour:) We highly recommend Accurate Insulation of Hagerstown.

Albert Day★★★★★5 years ago

Glad I have called you all b4 calling Lowes.... The guys were great and well knowledge. Will us company in future fo service or maintenance

K Pin★★★★★2 years ago

I've been a homeowner for 21 years. In all that time, I have used dozens of contractors for renovation, HVAC, roofing, electrical, plumbing, etc. I can now add Dan Smallenbroek as only the third contractor/consultant that I trust implicitly to that list. Prior to working with Dan, I received an estimate from another highly regarded insulation company for attic encapsulation. In fact, that company's name was the only one I had heard from anyone I asked about potential insulation companies. The salesman was knowledgeable, but had a one size fits all approach. This other guy didn't try to understand what I was trying to accomplish and just kept telling me that trying anything else would not work. I called Accurate Insulation to get a second estimate to see if it jived with the competitor's. I explained to Dan that I thought I already had a good company with a reasonable quote but wanted to make sure I was getting what I really wanted. Dan promised to come out, survey my attic, and give an honest recommendation. With his help and collaboration, I picked a system that worked for finishing an attic. He spent a significant amount of time educating me about R values, the difference between blown in, fiberglass, open and closed cell insulation, and the rebates and tax credits for which I was potentially eligible. He was never pushy and not for a second did I feel that he was trying to upsell. The energy audit ended up getting me a 35% rebate which Dan facilitated on the front side. He also gave me the resources to help me apply for a federal tax credit which means the final cost for the entire insulation project will be a whopping 50% off Accurate's quoted price. This doesn't mean others will have the same result, but it's nice learning ahead of time what your all-in cost will be instead after the fact when you're not eligible anymore. The energy audit process means that everything takes more time, but it also means you'll probably make a better informed decision at a fraction of what a job actually costs. It's 91 degrees oustide right now. My HVAC unit currently sits in conditioned air space at 74 instead of 130 degrees and we're in the process of having the attic finished off as an office for my wife. I'd be remiss in not saying Accurate's energy auditor, Mike Sears, spent an extra 90 minutes post-audit going over problem areas in my house and offering his own insights for improving energy efficiency. The encapsulation reduced air flow loss by 31% which has to translate to lower heating and cooling costs going forward. If you're considering insulating your attic, I can not recommend Dan Smallenbroek and his crew with Accurate Insulation highly enough. Much obliged - Kevin & Diann

Frequently Asked Questions — Spray Foam Insulation in Annapolis

These are the questions Annapolis homeowners ask most about spray foam cost, R-value, and open- vs. closed-cell foam — with context for local pricing and roughly 33% typical energy savings. Compare the 5 verified Annapolis contractors above for exact quotes.

Is spray foam insulation a good investment in Annapolis?▼
For homes in mixed-humid climates like Annapolis, MD, spray foam is typically an excellent investment. The combination of hot summers, cold winters, and significant humidity means your home faces insulation challenges year-round. Spray foam addresses all three — providing thermal insulation in both seasons while controlling moisture infiltration. Most homeowners in MD see payback periods of 4–7 years. As with any tight building envelope, ensure your home has adequate mechanical ventilation to manage interior moisture.
How does humidity affect spray foam insulation performance in Annapolis?▼
In mixed-humid climates like Annapolis, MD, moisture management is as important as thermal performance. Closed-cell spray foam acts as a Class II vapor retarder, preventing moisture from infiltrating walls and attics where it causes mold and structural damage. This dual function — insulation plus moisture control — is why spray foam outperforms traditional insulation options in MD's climate. However, because the building envelope becomes tightly sealed, proper mechanical ventilation is strongly recommended to allow interior moisture from daily activities to escape without losing conditioned air.
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 Annapolis, MD?▼
In Annapolis, MD 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 Annapolis costs $2,000–$6,000. Most Annapolis 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 Annapolis, MD?▼
When searching for a spray foam contractor in Annapolis, MD, 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 Annapolis 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 Annapolis 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.