Attic Insulation Contractor

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EXPERIENCED WISCONSIN GUTTER INSTALLER

Attic Insulation Installation by Semper Fi Roofing & Exteriors

Don’t Let an Uninsulated Attic Drain Your Comfort – or Your Wallet

Your attic may seem like “out of sight, out of mind,” but poor or missing insulation is one of the few silent home problems that constantly costs you. If your upstairs rooms alternate between freezing and sweltering, your HVAC system runs nonstop, or ice dams are forming on your roofline, it’s time to act. At Semper Fi, we bring two decades of trusted workmanship and veteran-led values to solving these challenges — we’ll make your attic a protective shield, not a liability.

What Is Attic Insulation Installation?

Attic insulation is the thermal barrier installed between your living space and the unconditioned attic above. It slows heat flow in both directions: keeping warm air in during winter, and keeping heat out during summer. A proper system also includes air sealing to close gaps, plus ventilation balance to prevent moisture buildup.

At Semper Fi Roofing & Exteriors, our insulation process includes:

  1. Full attic inspection & thermal audit
  2. Removal of existing damaged or compressed insulation
  3. Air-sealing at penetrations, rim joists, chases, duct entries
  4. Installing or layering high-performance insulation (blown-in fiberglass, cellulose, or spray foam, as needed)
  5. Verifying ventilation and ensuring moisture control
  6. Final inspection, quality assurance, and cleanup

 

Every installation is customized for your attic’s shape, condition, and your budget.

WE'RE THE EXPERTS

Why You Can’t Afford to Ignore Insulation

  • Escalating energy bills. Without proper insulation and sealing, heat (or cooled air) escapes through your ceiling, forcing your HVAC to overwork. The U.S. EPA estimates homeowners can save ~15% on heating and cooling costs by sealing and insulating.
  • Temperature imbalance & comfort issues. Upstairs rooms stay too hot in summer and too cold in winter. Insulation helps stabilize temperatures and dramatically reduces “hot attic syndrome.”
  • Shorter HVAC lifespan. With a less burdensome workload, your heating and cooling system experiences less strain and fewer repairs.
  • Roof & structural protection. Heat and moisture trapped in the attic can cause roof deck warping, rot, and ice dams. Proper insulation + ventilation is the defense.
  • Improved indoor air quality & pest control. Old insulation can harbor mold, dust, allergens, or rodent nests. Removing it and installing clean, sealed insulation improves air quality and helps keep pests out.
  • Market value boost. Buyers appreciate energy-efficient homes. A well-insulated attic can be a selling point.


Put simply: every day you delay, your home is losing money, comfort, and structural resilience.

SHOULD YOU GET A SKYLIGHT?

Benefits You’ll Enjoy, Immediately & Over Time

Benefit

What It Means for You

Lower energy bills

Your HVAC will run potentially saving you ~10–15 % or more each year, ENERGY STAR

Consistent home comfort

Upstairs rooms stop being “too hot/too cold”

Quieter home

Insulation acts as a sound barrier, reducing outside noise 

Extended roof & system life

Better attic conditions protect roofing and reduce HVAC wear

Healthier living space

Reduced allergen infiltration & mold risk

Return on investment

Energy savings and improved value often recoup cost over time 

Choose Semper Fi — We Don’t Just Insulate, We Protect

  • Over 20 years in business. From two Marines with a roofing truck to a full-service exterior team — we’ve earned our reputation through performance.

  • Proven track record and trust. We’re BBB-accredited with an A+ rating. Better Business Bureau

  • Thousands of delighted customers. Our roof and exterior projects have secured 500+ five-star reviews over the years.

  • Robust warranties & guarantees. We back our work with comprehensive workmanship warranties so you can rest easy.

  • Attention to detail & craftsmanship. Our veterans and craftsmen inspect every inch — from the rim joists to the eaves — ensuring no cold bridge or air leak is left unchecked.

  • Local, responsive, accountable. You deal with us — not subcontractors. We’re locally based in Southeastern Wisconsin, so when you reach out, we answer. 


When you choose Semper Fi, you’re not just hiring an insulation contractor — you’re hiring a partner committed to safeguarding your home.

Real Results, Real Homes

“Jeremy was great with explaining and showing all the options/materials. He definitely is knowledgeable with not just roofing but insulation and venting. The company does take pride in their work. I appreciated how he was not pushy with selling the most expensive option.”
Janel Ganz

We’ve helped dozens of Wisconsin homeowners transform their attics. From older homes with poor insulation to new builds lacking air sealing, our team has delivered consistent comfort and savings. Ask us for references or to see near-you case studies.

GETTING STARTED

Don’t Wait — Your Energy & Comfort Depend on It

Every winter, every summer, your attic is leaking your comfort (and your money). The longer you wait, the more it costs. But you don’t have to live that way. With Semper Fi Roofing & Exteriors, you get: quality, integrity, craftsmanship, and a team that treats your home like it matters — because it does.

Take the first step now. Contact us today for a FREE attic inspection & insulation quote (no pressure, just clarity). Spots fill fast as temperatures drop. Let us armor your home for years to come. Contact us now or call (262) 500-4612.

Frequently Asked Questions (FAQ)

Q: How do I know if my attic insulation needs replacement or upgrade?
Look for sagging, moisture stains, visible daylight from attic floor, drastic temperature swings upstairs, or unusually high energy bills. If your insulation is over 15–20 years old, it’s likely underperforming.

Q: Which insulation type is best — blown-in fiberglass, cellulose, or spray foam?
Each type has strengths. Blown-in fiberglass is cost-effective and stable; cellulose has good density and eco-credentials; spray foam offers the tightest air seal. We assess your attic and recommend the optimal choice.

Q: How long does the installation take?
Typically a day or two, depending on attic size and prep work needed. We plan to minimize disruption.

Q: Will insulation cause my attic to trap moisture?
Not if it’s done correctly. We always balance ventilation, air sealing, and vapor control to ensure moisture flows out safely.

Q: Is there financial assistance available?
Many jurisdictions offer energy rebates or tax credits for insulation upgrades. We can help you identify applicable incentives in your area.

Q: What happens to my existing insulation?
If it’s damaged or contaminated, we safely remove and dispose of it. Otherwise, we layer new insulation on top, where possible.