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Learn about our screening process

7 Years In Business

Company Details


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Service Details

  • Residential Work
  • Commercial Work
  • Small Jobs Welcome

Areas of Expertise

  • Spray Foam Insulation
  • Blown-In Insulation
View All Offerings and Cities Served

Cost Information

  • Free Estimates


72 Verified Reviews
  • 5
  • 4
  • 3
  • 2
  • 1

Highly rated for

  • Quality
  • Value
  • Customer Service
Showing 1-10 of 72 results
5.0 Lonnie david H. Mishawaka, IN

Very friendly and prompt. Very pleasant young men who were very professional. They did a great job and also cleaned the area.

4.5 Michelle Z. Granger, IN

Timely and professional. Would hide again!

5.0 Jeff N. Cassopolis, MI

We were v, ery pleased with the insulation work, price, communication, and friendliness. We are new in the area and did not know who to contact a first for insulation services. We had just purchased a used 1995 manufactured home with a "cathedral ceiling" that had very poor 3" ceiling/roof blown-in cellulose insulation (but lots more open space available between ceiling and roof sheathing for more ) and no way to access the vacant space above the ceiling without tearing out huge sections of ceiling drywall (for foam insulation), or drilling a lot of holes (for blown-in) or tearing off the roof. None of which were good options for us. Denny came over and said he could actually get in through the soffits at the roof edge, all the way around the house, and with his long hose extension feed the insulation blower hose all the way up to the roof ridge and fill up each cavity by drawing the hose backwards as it expelled the insulation, from the peak down to the soffits. Which he actually did. I could hardly believe it. A very creative solution for a house not built with good insulation in mind or any thought of retrofitting/access. The positive difference in house warmth and furnace/propane usage was immediate. And the price was very fair, about 1/5 the price being quoted by other companies (for spray foam), or others who just shrugged and said "no way." Denny and crew also properly vented each cavity in the process, replaced dozens of soffit screens, and the crew cleaned up perfectly afterwards. They did the whole job on time, in just a few hours, and Denny actually charged less than the original quote because he was unable to fully access a few of the many ceiling bays due to cross-beams he discovered once the project was underway. I would never have known this (that they had to skip a few bays) and he could have charged the original price anyways. So I was impressed with the honesty and integrity. The D&N crew was a friendly, hard-working group who stopped to answer all my questions and seemed to actually enjoy their jobs. We were so impressed we had D&N come back a month later and insulate our crawl space (all block walls and rim joints) with spray foam insulation. Again, great work, on time (actually a day early!), friendly service. Now we're going to get them back a third time (!) to insulate underneath the floor of a guest cabin on our property with spray foam. We highly recommend D&N Insulation for anyone seeking fast, fair, honest, professional service at good prices. And they'll actually return your call. Jeff and Regina Cassopolis, MI Feb. 2022

5.0 Russ R. Mishawaka, IN

Very pleasant young men who were very professional. They did a great job and also cleaned the area they went through to get to the attic. Would definitely recommend them.

5.0 William R. Elkhart, IN

Dennis and his guys were on time and professional. If they made any kind of mess I didn't see it after they left. Would definitely recommend them.

5.0 Vic G. Chesterton, IN

I had a difficult commercial job, they got there tough on and got it done! Thanks Denny

5.0 Karen F. New Carlisle, IN

I like Dennis

5.0 Steve P. Mishawaka, IN

Awesome! Great service and people! The best!

5.0 Austin L. Osceola, IN

D&N Insulation came out on time to blow cellulose in my attic and walls. The best affordable price, hardest working, and quality insulation company you will find in Michiana! HIGHLY HIGHLY Recommend to anyone!!

4.0 Tad E. Warsaw,in, IN

Came on time did what they were supposed to


D&N Insulation

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