
Rock Island Insulation installs spray foam, blown-in, attic, and crawl space insulation for homeowners across the Quad Cities. We seal the gaps that drive up your energy bill and make your home hard to keep comfortable.

Rock Island Insulation is your local insulation contractor in Rock Island, IL, offering 16 specialized services across 12 communities in the Quad Cities region. Whether your home is losing heat through the attic, your crawl space has never been insulated, or you need old material removed before new work goes in, we handle the full scope. Most homes in this area were built before modern insulation standards, and we know exactly what it takes to bring them up to where they should be.

Drafty rooms and high heating bills? Spray foam seals gaps and insulates in a single application.
Learn More
Heat rises - a properly insulated attic keeps it inside and cuts your monthly energy bill.
Learn More
Blown-in material fills every corner of your attic or walls without tearing anything open.
Learn More
Full-home comfort starts with the right insulation in the right places, chosen for your budget.
Learn More
Old, damaged, or pest-contaminated insulation needs to come out before new material goes in.
Learn More
Cold floors above a crawl space? Insulating below seals the gap and cuts the chill.
Learn More
Thin or missing wall insulation is a major source of drafts and uneven room temperatures.
Learn More
Sealing the gaps where air sneaks in or out delivers savings that insulation alone cannot match.
Learn More
An uninsulated basement pulls heat from the floors above it all winter long.
Learn More
Dense, rigid, and moisture-resistant - closed-cell foam is the top choice for tight or wet spaces.
Learn More
Soft and affordable open-cell foam is ideal for interior walls, attics, and sound dampening.
Learn More
Lower utility costs for your building start with a proper insulation assessment from our team.
Learn More
Moisture rising from bare soil damages floors and insulation - a vapor barrier stops it.
Learn More
The right vapor barrier keeps moisture out of your walls, crawl space, or basement for good.
Learn More
Air leaks around fixtures and pipes in the attic cost more than you might expect - we seal them.
Learn More
Adding insulation to a finished home without tearing down walls is exactly what retrofit methods are for.
Learn MoreCall or submit a contact form and someone from our office will follow up within 1 business day. We ask a few basic questions about your home and what prompted the call so we show up prepared. Scheduling a visit is quick and comes with no obligation.
We come to your home, walk through the areas you want insulated, and check for air leaks, moisture, and existing material. You get a written estimate that breaks down the work by area and explains why each recommendation makes sense for your specific home.
Most jobs are done in a single day. When the crew finishes, we walk you through the completed work so you can see exactly what was installed and where. You leave with documentation of the materials and depth achieved - useful for rebate paperwork and future reference.
We carry general liability and workers compensation on every project. We are happy to provide proof of coverage before any work begins - no need to take our word for it.
We come to your home, measure the space, and give you a written estimate broken down by area. You pay nothing for the visit and there is no pressure to commit on the spot.
We live and work in the same community as our customers. We know the older housing stock in this area and understand the insulation challenges that come with Rock Island winters and Mississippi River humidity.
If a problem shows up after the job is done, we return and fix it at no additional charge. We document every project with before-and-after records so there is no confusion about what was done.
Ready to get started? Call (309) 791-9490 or request a free estimate online.
"The crew showed up on time and finished the attic in one day. My gas bill the following February was noticeably lower than the year before. They left the space cleaner than they found it."
Marcus T., Moline - Attic insulation
"We had a crawl space that was always cold and damp. After the spray foam and vapor barrier work, the floor above it stopped feeling like ice in the morning. The estimate was fair and they explained every step."
Denise R., Rock Island - Crawl space insulation
"Our 1950s bungalow had very little insulation in the walls. They used a retrofit method that did not require tearing drywall. The upstairs bedroom finally stays warm now, even during January cold snaps."
Tom K., Davenport - Retrofit insulation
We respond within 1 business day. There is no obligation - the estimate is free and comes with a written breakdown of the recommended work. After you submit, someone from our office will call to schedule your free on-site visit.
(309) 791-9490Rock Island Insulation serves homeowners in Rock Island, IL and the surrounding Quad Cities region, including Moline, East Moline, and Davenport. We cover 12 communities in total, and most customers can schedule a same-week estimate.
Rock Island sits in Climate Zone 5, one of the colder designations in the U.S., where federal guidelines recommend attic insulation at R-49 to R-60. Most homes built before the 1990s fall well short of that target, meaning your furnace is working overtime every time temperatures drop toward zero.
Blown-in fills every corner of an existing attic without demolition, making it the practical choice for most finished spaces. Spray foam is preferred in crawl spaces and rim joists where moisture from the Mississippi River corridor is a real concern - it insulates and seals moisture in a single step.
Often, yes. Adding insulation over air leaks is like putting a blanket over an open window. Sealing gaps around pipes, light fixtures, and attic hatches first - then adding insulation on top - delivers the biggest reduction in heating and cooling costs. The U.S. Department of Energy recommends air sealing as the first step before any insulation work.
If your crawl space has bare soil, moisture vapor rises through it year-round - even in dry months. A vapor barrier stops that moisture at the source. In Rock Island homes near the river, pairing a vapor barrier with insulation is often more effective than insulation alone because it addresses both the thermal and moisture problem together.
Ice dams form when heat escaping through an under-insulated attic melts roof snow, which then refreezes at the cold eaves. Rock Island winters produce enough freeze-thaw cycles to make this a recurring problem. The fix is sealing the attic floor against air leaks and adding insulation to the recommended depth - not just clearing ice from the roof each winter.
Yes - retrofit insulation methods allow contractors to add material inside wall cavities through small holes drilled from the exterior, then patched afterward. This is a practical option for the older brick and wood-frame homes common in Rock Island neighborhoods where opening walls would be expensive and disruptive.
Rock Island Insulation is a licensed and insured insulation contractor company based in Rock Island, IL, serving 12 communities across the Quad Cities region since 2017. We are registered with the Illinois Department of Labor and carry full general liability insurance and workers compensation on every project. Across our service area we have worked on residential homes, multi-unit properties, and commercial buildings - from simple attic top-ups to full crawl space and basement insulation systems.
If existing insulation is water-damaged, contains mold, or shows signs of pest activity, it should come out before new material goes in. Adding new insulation on top of compromised material traps moisture and reduces effectiveness. A contractor should inspect first and give you an honest assessment.
Soffit vents allow fresh air to circulate through the attic and carry out moisture. Blocking them - even accidentally with blown-in material - traps humidity and can lead to mold or wood rot over time. A qualified contractor uses baffles to keep those vents clear regardless of how deep the insulation is.
Yes - in most cases you will see the improvement in the first full billing cycle after the work. The ENERGY STAR program notes that sealing and insulating can cut heating and cooling costs meaningfully, especially in older homes that started below current recommended levels.
Have questions about your specific home? Call us at (309) 791-9490 or submit a message and we will respond within 1 business day.
Rock Island is a mid-sized city on the Mississippi River in western Illinois, part of the Quad Cities metro area with a combined regional population of around 450,000 people. The city has a long history of homeownership, and a large share of its housing stock was built before 1960 - which means older construction, original insulation in many cases, and homes that have been through decades of hard winters along the river.
Rock Island is home to well-known landmarks including the Rock Island Arsenal, one of the largest military manufacturing facilities in the region, as well as Schwiebert Riverfront Park along the Mississippi and the established neighborhoods surrounding Longview Park to the north. Homes near Longview Park tend to be larger, older, and well-kept - many of them Victorian and Craftsman-style properties that require the kind of careful insulation work that accounts for older framing and plaster walls.
The city sits in a humid continental climate zone where winters regularly push below 10 degrees Fahrenheit and the Mississippi River corridor adds humidity that makes basement and crawl space moisture a persistent concern. For homeowners in Rock Island, proper insulation is not just about comfort - it is a practical defense against the freeze-thaw cycles, ice dams, and damp basements that come with this climate every year. Rock Island Insulation has served this community since 2017 and understands exactly what local homes need.
By appointment only, no walk-ins.
Rock Island Insulation
1428 8th Ave
Rock Island, IL 61201
sales@rockislandinsulation.com
Always open, 24/7.
Rock Island Insulation serves Rock Island and the Quad Cities. We respond within 1 business day.