- 150+ insulation projects completed
Insulation Contractors in Denver, Colorado
Insulation, Rodent Defense & Real Energy Savings, All From One Denver Crew
Servicing Denver, Boulder, Colorado Springs, Fort Collins & everywhere within ~45 miles of Denver.
Insulation Contractors in Colorado
Insulation
Wrap your home in a thermal shell built for Colorado’s swings, from bitter January nights to high-altitude summer sun.
Pest and Rodent Prevention
Seal the gaps mice and pests sneak through and make your walls a place they won’t want to nest.
Energy Efficiency
Stop paying to heat the outdoors. A tighter envelope gives your furnace a real break, and your bill shows it.
Eco-Friendly Options
Recycled-content cellulose that reaches high R-values without the landfill guilt.
Our Guaranteed Expert Services
Pest Control
Insulation
Insulation that pulls double duty, slowing heat loss while keeping rodents from nesting, using EPA-registered, borate-treated material.
- Discourages mice & pests
- EPA-registered formula
- Real energy savings
Spray Foam
Insulation
Our strongest seal. Expanding foam fills every gap and crack, locking out drafts and moisture in one airtight layer.
- Airtight, gap-free seal
- Top R-value per inch
- Shrugs off moisture
Loose Fill /
Blown In
Insulation
Dense-packed cellulose that settles into attics and the odd corners batts can’t reach. Quick, affordable, and Colorado-attic proven.
- Reaches every cavity
- Most jobs completed in 1 to 2 days
- Budget-friendly R-value
Attic
Insulation
Removal
Old, water-stained, or rodent-soiled insulation vacuumed out clean with HEPA-filtered gear, then hauled away for you.
- Safe contaminant cleanup
- HEPA-filtered vacuum gear
- Disposal handled for you
Crawl Space
Encapsulation
Inspection, cleanup, and a sealed vapor barrier that turns a damp crawl space into a dry, healthy foundation.
- Locks out moisture & mold
- Healthier indoor air
- Steadier floor temps
Attic Sealing
Services
We track down the hidden gaps around lights, vents, and the attic hatch where warm air escapes, then seal them up tight.
- Plugs hidden air leaks
- Kills cold-room drafts
- Lowers monthly bills
The Grizzly Difference with Insulation Installation
We treat your house like our own den, sealed tight and built to outlast whatever Colorado throws at it.
Expertise
One crew that insulates and handles rodent exclusion and cleanup in-house, so your attic problem gets solved in a single visit.
Education
We walk you through your options in plain English so you can decide what fits your home and budget, with no pressure.
Trust & Transparency
Upfront pricing, clear timelines, and work we stand behind. The reputation we’ve built around Denver is our only sales pitch.
Trusted Products & Partners
How It Works
From quote to finished project, with financing made simple.
Step 1
Get Your
Quote
We measure your home and send a free, itemized estimate.
Step 2
Check Your
Options
Apply in seconds by text or link and see your rates instantly
Step 3
Pick Your
Plan
Step 4
Get
Started
Ready to Build a Warmer Den?
Tell us about your home and we’ll map out the fix: warmer rooms, lower bills, and no uninvited critters in the walls. Free consultation, no obligation.
The best insulation solution depends on several factors, including your property’s age, construction type, existing insulation, energy-efficiency goals, and budget. Spray foam insulation provides excellent air sealing and thermal performance, while blown-in insulation is a cost-effective option for improving attic and wall insulation. In some cases, a combination of insulation, air sealing, crawl space encapsulation, or insulation removal may deliver the best results. A professional inspection can help determine the most effective solution for your specific property and needs.
Not always. If existing insulation is contaminated, wet, moldy, damaged, or compressed, removal may be recommended before installing new insulation. A professional inspection can determine the best approach.
Spray foam expands to seal air leaks while providing insulation. Blown-in insulation is designed primarily to increase thermal resistance and is often used in attics and wall cavities.
Air sealing helps prevent conditioned air from escaping and outdoor air from entering your property, improving comfort, energy efficiency, and indoor air quality.
Crawl space encapsulation helps control moisture, improve indoor air quality, reduce energy loss, and protect the structure from mold and pest-related issues.
Still Have Questions?