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Insulation contractor · Roanoke Valley

Spray Foam Insulation Contractor Serving Roanoke, Salem & Cave Spring

Houston Bros Spray Foam is your local spray foam insulation contractor providing attic, crawl space, garage, and full home insulation services in Roanoke, Salem, Cave Spring and throughout the Roanoke Valley.

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  • Locally Owned & Operated
  • Licensed & Insured

Who We Are

About Houston Bros Spray Foam

Houston Bros Spray Foam is a family-run insulation contractor based at 241 Rustic Ridge Road in Ferrum, Virginia, with more than 25 years of hands-on experience. Owner Dan Houston helps homeowners and businesses across southwest Virginia—including Roanoke, Salem, Cave Spring, and surrounding areas—improve comfort, energy efficiency, and long-term property performance.

As a trusted spray foam insulation contractor, Houston Bros provides tailored solutions for residential and commercial properties, including new construction, remodels, metal buildings, attics, crawl spaces, and specialized roofing projects. Their open-cell and closed-cell foam applications create a thorough thermal envelope that helps reduce drafts, moisture concerns, heat transfer, and the strain on heating and cooling systems. These Home Insulation Services are designed to support lasting energy savings and improved indoor air quality.

Houston Bros also offers foam lifting and seamless spray foam roofing systems. Foam lifting provides a cleaner, quieter, and less invasive alternative to traditional concrete lifting, while their roofing applications help seal cracks and seams, improve insulation, and protect properties from severe weather. With careful workmanship, technical expertise, and a commitment to treating every project with precision, Houston Bros is ready to help you find the right insulation solution for your home or business. Free estimates are available.

Why It Pays Off

  • A tighter building envelope means less heat transfer and smaller energy bills.
  • Sealed attics, crawl spaces and walls cut drafts, moisture and pest entry points.
  • Steady indoor temperatures reduce wear and extend HVAC equipment life.

Our Services

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Where We Work

Service Areas

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Serving homeowners and businesses across the region.

  • Roanoke
  • Danville
  • Floyd
  • Salem
  • Ferrum
  • Bedford
  • Troutville
  • Rocky Mount
  • Martinsville

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What Customers Say

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Questions

Frequently Asked

Do you offer crawl space insulation that also helps prevent moisture and drafts?
Spray foam insulation works great for crawl spaces because it not only provides strong insulation but also seals out moisture and drafts. The foam expands to fill every gap and crack, so it blocks out humid air and keeps your crawl space dry and protected. This helps stop problems like mold, musty smells, cold floors, and even pests from getting in. By making a tight seal, it makes your home more comfortable and can lower your energy bills too.
Can you provide home insulation services for a remodel, and will spray foam seal around existing plumbing and electrical lines?
Spray foam insulation is great for remodels because it can fit into existing walls, attics, or crawl spaces, even when there are obstacles like plumbing and electrical lines. The foam is sprayed in and expands, filling gaps and cracks around pipes, wires, or other features. This creates a tight seal that helps block drafts, keeps out moisture, and can boost energy efficiency in older homes without needing to remove everything inside the walls first.
Do you provide roof repairs and protective coatings using spray foam insulation?
Spray foam is used for both roof repairs and protective coatings. It gets sprayed onto the roof, creating a solid, seamless layer that seals cracks, gaps, and seams. This helps keep water out, improves energy efficiency, and adds strength to the roof, helping it handle tough weather. The foam can also reflect sunlight, which keeps buildings cooler and can lower energy bills. This type of roof repair works well for both homes and commercial buildings and gives long-lasting protection with very little maintenance needed.
Do you offer spray foam insulation for metal buildings and commercial properties as well as homes?
Spray foam insulation works great for more than just homes—it’s also a smart choice for metal buildings and commercial properties. Both open cell and closed cell spray foam can be used to seal up walls, roofs, and even tricky spots around pipes or wiring in these structures. This helps stop drafts, control moisture, and keep indoor temperatures stable, which means lower energy bills and less strain on your HVAC system. Whether it’s a new build, a remodel, or a project like a warehouse or workshop, spray foam is designed to boost energy efficiency and comfort in just about any type of building.
Can you use foam lifting to raise and stabilize a sunken concrete slab on my property?
Foam lifting can be used to raise and stabilize a sunken concrete slab. The process works by injecting high-density polyurethane foam underneath the slab. As the foam expands, it fills the gaps below the concrete and lifts it back to its original position. This method is fast, clean, and doesn’t require heavy equipment or major digging. It's also long-lasting because the foam creates a stable base that helps prevent future settling. Many people use foam lifting to fix sidewalks, driveways, patios, and garage floors that have started to sink or become uneven.
How long does attic insulation typically take to install, and what do I need to do to prepare my home beforehand?
Installing spray foam insulation in an attic usually takes about a day for most homes, though bigger spaces or complex jobs might need a little more time. Before the team arrives, it helps to clear out any belongings or storage from your attic so they have plenty of room to work. Make sure the access point to the attic is easy to get to, and if there’s anything blocking vents or pathways, move those out of the way. If there are exposed wires or old insulation that needs to come out, let the crew know ahead of time. It’s best to keep pets and kids out of the area while work is happening, and sometimes you might need to stay out of the house for several hours until everything is set and ventilated. Overall, just making sure things are tidy and accessible goes a long way in speeding things up.
How much can I expect to save on my utility bills after getting spray foam insulation installed?
Most people notice pretty big savings on their utility bills after having spray foam insulation installed—sometimes up to 50% compared to what they were paying before. Spray foam creates a tight seal that keeps the treated air inside, which means your heating and cooling systems don’t have to work as hard. This helps reduce energy use year-round. The exact amount you’ll save depends on factors like your home’s size, the condition of your old insulation, and how many gaps and drafts are sealed up with spray foam, but overall, it's one of the most effective ways to cut down monthly energy costs.
What’s the difference between open cell and closed cell spray foam insulation, and which one is better for damp areas like crawl spaces?
Open cell spray foam has a softer, spongy texture and is good for filling in gaps and unusual shapes because it expands a lot. Closed cell spray foam, on the other hand, is much denser and forms a solid barrier against air, water, and moisture. For damp areas like crawl spaces, closed cell spray foam is usually the better choice because it keeps out moisture, blocks vapor, and helps prevent mold or rot. Open cell is often used in interior spaces for soundproofing, but it doesn’t block water as well as closed cell foam.

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Serving Roanoke, Salem, Cave Spring, Smith Mountain Lake, and the entire Roanoke Valley