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Trusted Insulation Contractors in Maryland
Winner Insulation is a veteran-owned and operated business serving Maryland, Washington, DC, and Virginia. Founded by David Winner, a U.S. Air Force veteran with extensive expertise in spray foam insulation and building science, we specialize in delivering energy-efficient and cost-effective insulation solutions for residential and commercial clients. Our team collaborates with architects, real estate developers, builders, and homeowners to meet diverse project needs, from consultation to installation. With over two decades of industry experience, we combine military precision with technical knowledge in RESNET, HERS, and building envelope design to ensure superior results. Our commitment to integrity, professionalism, and client satisfaction drives every project, whether new construction, renovations, or retrofitting.

We prioritize clean job sites, code compliance, and direct owner involvement to guarantee transparency and reliability. Recognized for our work with award-winning architects and high-end custom builders, we offer competitive pricing without compromising quality. Our services include spray foam, cellulose, and fiberglass insulation, tailored to enhance thermal performance, reduce energy costs, and improve indoor comfort. Backed by positive client testimonials and a dedication to sustainable practices, Winner Insulation remains a trusted partner for insulation needs across the Mid-Atlantic region.
Services
Spray Foam Insulation Cellulose Insulation Fiberglass Insulation Attic Insulation Whole-Home Insulation Wall Insulation New Construction Insulation Commercial Insulation Building Code Updates HERS Testing
Highlights and features
  • Veteran-owned business with over 20 years of industry experience.
  • Direct owner involvement ensures personalized service and accountability.
  • Always clean job site maintained post-installation.
  • HERS-certified for energy efficiency compliance.
  • Serves both residential and commercial clients across MD, DC, and VA.
What people say
Competitively priced Expert in his field Courteous and professional Energy bills reduced Honest and transparent
Services
Spray Foam Insulation
Spray foam insulation creates an airtight seal by expanding to fill gaps, enhancing energy efficiency and climate control. Ideal for attics, walls, and crawl spaces, it prevents air leakage, reduces utility bills, and improves indoor air quality by blocking pollutants. Winner Insulation uses high-quality open-cell and closed-cell foam tailored to project needs.
Cellulose Insulation
Made from recycled materials, cellulose insulation resists fire, insects, and mold while offering excellent noise reduction. Blown into attics and walls, it provides eco-friendly thermal performance and moisture control. Winner Insulation installs cellulose for both residential and commercial properties seeking sustainable insulation solutions.
Fiberglass Insulation
Fiberglass insulation uses fine glass fibers in batts or rolls for easy installation in walls and ceilings. Cost-effective and widely used, it improves thermal efficiency and soundproofing. Winner Insulation recommends fiberglass for projects requiring affordable, reliable insulation with straightforward application.
Attic Insulation
Proper attic insulation prevents heat loss in winter and heat gain in summer, reducing energy costs by up to 30%. Winner Insulation employs spray foam, cellulose, or fiberglass to seal gaps, regulate temperatures, and enhance comfort in residential and commercial attics across MD, DC, and VA.
Commercial Insulation
Winner Insulation provides tailored insulation for commercial buildings, including offices, warehouses, and industrial facilities. Services include spray foam, fiberglass, and cellulose installation to meet energy codes, improve HVAC efficiency, and ensure compliance with sustainability standards for long-term cost savings.
People
David Winner
Owner
David Winner is a U.S. Air Force veteran with over 20 years of expertise in spray foam insulation and building science. He combines military discipline with technical knowledge in RESNET and HERS to lead Winner Insulation's team, ensuring precision and client satisfaction.
Questions
What types of insulation do you offer?
We provide spray foam, cellulose, and fiberglass insulation tailored to residential and commercial needs.
Is spray foam insulation worth the cost?
Yes, spray foam offers superior energy efficiency and long-term savings despite higher upfront costs.
Can you insulate existing homes?
Yes, we retrofit insulation in existing homes to improve comfort and energy efficiency.
Do you serve commercial clients?
Yes, we specialize in commercial insulation for offices, warehouses, and industrial facilities.
Are financing options available?
Yes, we offer financing to help clients manage insulation project costs.
What areas do you service?
We serve Maryland, Washington, DC, and Virginia, including Baltimore and Northern Virginia.
Reviews (6)
Devin Jopp
Jul 01, 2021 Report
Positive:Professionalism,Quality,Responsiveness,Value
David is a true wizard of insulation. Incredibly knowledgeable, great service, very communicative and reasonably priced. His team was highly professional and got right to work. David is the best in the business! Thanks so much!
James Ringgold
May 16, 2021 Report
David was fantastic to work with. From the initial consultation until the final day of work, he was always available and able to fully explain each step of the process. He's very upfront with his process and pricing and we couldn't be happier with how our attic looks. I can't wait to see the drop in our BGE bill during the hot summer months and cold winter times now that our attic is sealed-in. Even with temps in the high 70's and low 80's, I've noticed that our AC unit has breathed a sigh of relief as it's not constantly running to maintain the optimum temp. Thank you again, David, for your professionalism
Malka Designs
Jan 14, 2021 Report
We recently hired Winner Insulation to apply spray foam to our attic and the change is unbelievable. Bedrooms that felt 10 degrees colder during the winter- are now perfect temperature. His team was professional, courteous, clean and most importantly- extremely honest. (They couldn't access a low-pitch area within our attic - an area we'd NEVER have known wasn't sprayed... yet they told us about it - and reduced our bill accordingly). If you plan on staying in your home for the long haul - definitely have David Winner come out to give you a free quote.
Christine Gardner
Dec 23, 2020 Report
David is EXCELLENT and the quality of their work is even better. We had a log home so it was very tricky for them because they couldn't get insulation on the exposed beams but they did a perfect job. Their prices beat out all of their competitors- highly recommend using them for your insulation.
Kim Letschin
Jun 21, 2020 Report
Winner insulation was fantastic to work with! They came as a recommendation from our contractor which had already gave us trust since he trusts Winner Insulation. From the owner being involved in the job to the crew- everyone was extremely professional, very knowledgeable, and not pushy. They explained what they felt would help with getting our 1960s cape cod more efficient and took the time to make sure we understood the product and process. Im very particular with businesses that I select to hire and was pleased above and beyond. I will refer Winner Insulation to my family, friends, and
Greenspring Services
Aug 08, 2019 Report
First class work at a competitive price. We have used Winner Insulation for new homes we have built and well as custom renovations and we have all been very impressed with the quality of the work !