
Serving Griffith, IN and surrounding areas
Approved
In business since 2008
Free estimates
Credit card accepted
"Friendly work people. Explained process of insulation. Showed me the results on the I phone."


Serving Griffith, IN and surrounding areas
Approved
In business since 2008
Free estimates
Credit card accepted
"Friendly work people. Explained process of insulation. Showed me the results on the I phone."

Serving Griffith, IN and surrounding areas
Approved
In business since 2025
Free estimates
Credit card accepted
"We recently had blown in insulation installed in our home and couldn’t be happier with the experience from start to finish. The team was kind, professional and incredibly prompt. They showed up on time explained the process clearly and treated our home with respect. What really stood out was the pricing after receiving a much higher quote from another company their estimate was very fair and transparent with no pressure or upselling. It was clear they care about doing honest work at a reasonable price. The installation was completed efficiently, and the whole process was smooth and stress-free. I would definitely recommend them to anyone looking for insulation work great service, great value and great people."

Serving Griffith, IN and surrounding areas
Approved
In business since 2019
Free estimates
Emergency services offered
"nick and his crew were experienced and very knowledgeable in their product and the job they are hired for. I like the quick communication and the being on time when it came to perform the job. I would highly recommend hiring NM Enterprises for any job that has to do with insulation. Very professional and they take pride in doing a great job for their customers. Also, did items beyond what they were hired to do like, rerouted my kitchen vent that the builder or roofers did not vent through the roof, also removed some items that were left in attic from another owner. Again, i recommend hiring NM Enterprises for your next insulation job."

Serving Griffith, IN and surrounding areas
Approved
In business since 2022
Free estimates
Emergency services offered
We pride our company on reliability, great communication, integrity, and quality work. We are experts in our trade and will do our best to keep you as educated as we can on your particular task or project. We look forward to earning your business!\n

Serving Griffith, IN and surrounding areas
Approved
Super Service Award Winner
In business since 1979
Free estimates
Emergency services offered
"George came out promptly and did a thorough inspection of the crawlspace and provided options on what can be done. The insulation work was performed by Jesus who also found and fixed two foundation cracks. Encapsulation was done by Juan's team and they all did a great job. They were able to perform all the work with a very narrow opening into the crawlspace and were also able to fit in the dehumidifier. After installation there was a minor issue with the dehumidifier and Craig came right away to fix it. Great experience and I'd definitely use their services in the future if need be."





+48

Serving Griffith, IN and surrounding areas
Approved
In business since 2004
Free estimates
Emergency services offered
"I felt very comfortable throughout the whole process from the sales to the install of my roof. The project managers, Walter and devan, were very knowledgeable during the install and made sure we didn’t have any questions. Overall very pleased with everything"

Serving Griffith, IN and surrounding areas
Approved
Free estimates
Warranties offered
Small jobs welcome
At HeatLock Insulation, we specialize in high-performance insulation solutions designed to make homes and commercial buildings more energy-efficient, comfortable, and protected year-round. Based in Illinois, our team delivers professional insulation services with a focus on quality craftsmanship, reliability, and long-term energy savings.\n\nWe provide expert installation of spray foam insulation, attic insulation, wall insulation, crawl space insulation and air-sealing systems forth residential and commercial properties. Whether it's a new construction project, renovation, or energy-efficient upgrade, HeatLock Insulation helps seal air leaks, regulate indoor temperatures, reduce noise, and lower monthly utility costs.

Serving Griffith, IN and surrounding areas
In business since 1985
Free estimates
Credit card accepted
"Professional and timely inspection. Decided not to purchase recommended insulation service from this vendor because it was not cost-efficient for our house
"
Serving Griffith, IN and surrounding areas
In business since 1999
Free estimates
Credit card accepted
"David and team did a fantastic job. I had 30 year old attic insulated. Old insulation removed and reblown in. David sealed around ceiling lighting, gaps where mice had gained entrance, sealed around windows. They were reliable, efficient, personable, cost effective, and most of all listened to our problems for resolution. We were pleased that we hired DAP and Sons."

Serving Griffith, IN and surrounding areas
In business since 1999
Free estimates
Credit card accepted
"Greg, the owner, came out on two occasions to discuss the crawl space and drain tile. He is extremely knowledgeable and experienced in the crawl space industry. We had a few options and he told me about the new spray product he was using. It is this unique seamless liner that is sprayed on after preparing and insulating the area.
His crew was very professional and easy to talk to. We had some scheduling conflicts that were easy to work around and get the job done when we needed it to be finished.
The difference we noticed in the smell in our basement, the effect the insulation and seamless lining had on the air conditioning in our family room (which is above the crawl space) was immediate. We feel cooler air coming through the duct work since it isn't losing energy traveling through a non insulated space anymore and they basement smells and feels normal since the dirt and concrete is now completely covered by the new liner.
That new product is great.
Greg's company also did drain tile work in our basement. It was a different crew than the group who did the crawl space, but they were equally as professional and easy to work with. Rather than break up the job into 3-4 days they stayed late the first day to get everything ready and prepared so they could complete the job quicker. The job was done the next day. The price was very fair and the crew was extremely clean throughout thew whole process.
We now have a water tight, well insulated basement and we couldn't be happier with the results.
I have told several friends about the experience and would recommend them anytime. From Greg down to each of his crew members they really know how to do a good job and work with the customer."





+16
Local and federal rebates are available for insulation installation, which can significantly reduce your overall costs. Many utility companies offer incentives or rebates to homeowners who improve their home's energy efficiency. Contact your local energy provider or government agencies to learn about available programs in your area, and consult with a professional insulation installer to maximize your savings.
It's not necessary to remove old insulation before adding new insulation, as long as the existing insulation is in good condition—dry, free of mold, and not damaged. Adding new insulation on top of old insulation can improve your home's energy efficiency by increasing the overall R-value. However, if the old insulation is wet, moldy, or damaged, it's best to remove it before installing new insulation to prevent potential health risks and ensure optimal performance.
Insulating a house takes between five and twelve hours for batts or boards, and two to five hours for spray foam or blown-in insulation. The exact time depends on the size of your home, the type of insulation, and the accessibility of the areas being insulated. Keep in mind that projects may take longer if old insulation needs removal, if there's a larger square footage, or if spaces are difficult to reach.
From average costs to expert advice, get all the answers you need to get your job done.

Use this guide to budget for roof repair costs based on factors such as roof condition, materials, size, repair type and severity, and more.

Need fascia and soffit repairs? Hiring a pro ensures proper installation, protects against pests, and prevents structural damage. Learn about common warning signs, material options, and how fascia and soffits safeguard your home from moisture.

Learn who to call for HVAC inspection. Discover which pro to hire, what to expect from an HVAC inspection, and average costs for your home.

Finish your home project on a budget with this cheap windows buying, installing, and replacement guide.

Our comprehensive cost guide will help you explore the costs associated with roof replacement, including roof pitch, shape, design, square footage, and more.

Budget for attic insulation removal costs based on factors such as attic size, insulation type, site condition, hazardous materials, labor, and more.