Duct Sealing in Colorado Springs - Tested First, Written Price Second

Fast, Reliable Duct Sealing Across Colorado Springs

Duct sealing in Colorado Springs typically runs $450 – $1,200 for a whole-home system, with most ranch-style homes in neighborhoods like Old Colorado City falling in the $550 – $850 range. We seal supply and return plenums, register boots, and longitudinal seams using duct sealing mastic and fiberglass mesh, then pressure-test to confirm the fix. Our crews dispatch from the Denver office and cover Colorado Springs with scheduled appointments, not vague windows. Call (361) 326-5060 for a written estimate before any work starts.

Call (361) 326-5060

We’ve worked in Colorado Springs long enough to know the local housing stock inside out. The mid-century ranch homes off Colorado Avenue still run original galvanized steel ductwork that corrodes at the seams. Newer tract builds in Briargate and Stetson Hills flex duct sag between joists, pulling tape joints apart. After a Front Range windstorm, we’ve opened attics in homes east of Powers Boulevard and found those characteristic streaks of fine red plains dust pouring through gaps that should have been sealed decades ago. Roy Castellanos and our team treat every job by The Garrison Standard: arrive inside the quoted window, price in writing, finish by the book, leave the site clean.

Why Hollis Air Duct Cleaning Is Colorado Springs’s Preferred Duct Sealing Company

Hollis Air Duct Cleaning has been part of the Garrison Partners family since 2004, and our Colorado Springs reputation is built on showing up when we said we would. Homeowners in the Springs aren’t looking for the cheapest bid; they’re looking for the bid that doesn’t change once the van is in the driveway. Our written price guarantee means the number you approve is the number on the invoice, period.

Our technicians are background-checked, uniformed, and accountable. You know who’s walking into your home before they arrive, and they know The Garrison Code: no shortcuts, no surprises, no mess left behind. Every duct sealing job carries our 365-Day Done Right Promise in writing. If the seal fails within a year, we come back and make it right at no charge, including a free second visit.

Phones are answered by a live person 24 hours a day, 7 days a week. No voicemail loops, no callback queues, no waiting until Monday to schedule. Dispatch and scheduling are coordinated from our Denver office, but the crews serving Colorado Springs live and work locally. They understand that a home near Cheyenne Mountain faces different pressure differentials than a split-level in Falcon, and they adjust their approach accordingly.

Duct Insulation in Colorado Springs

Duct Insulation in Colorado Springs addresses a problem most homeowners don’t know they have until their winter heating bills spike. At over 6,000 feet altitude, the dry, cold air in Colorado Springs attics and crawl spaces pulls heat from uninsulated metal ductwork faster than at sea level. We wrap supply ducts with formaldehyde-free fiberglass insulation, secure it with mechanical fasteners and vapor barrier, and seal every seam to prevent the conditioned air you’re paying for from bleeding into unused attic space.

A typical duct insulation job in Colorado Springs runs $600 – $1,400 depending on accessible linear footage and whether we’re working in a tight 1960s ranch crawlspace or a modern two-story with a full attic. Homes in Manitou Springs and Old Colorado City with original galvanized steel benefit most, since uninsulated metal loses roughly 30% more thermal energy than properly wrapped ducting.

When Insulation Beats Sealing Alone

Some Colorado Springs homeowners call us for sealing when the real problem is heat loss through thin metal walls. We inspect with a thermal camera and tell you straight if insulation is the better investment. In homes north of Woodmen Road where flexible ducting was installed in the 1990s, the outer mylar layer often degrades before the inner liner fails, making insulation replacement the priority.

Altitude and R-Value Selection

Colorado Springs’s thinner air changes how we calculate effective R-value. We spec higher-density insulation than crews at lower elevations, and we never compress it around bends where it loses effectiveness. Roy Castellanos trains our technicians to measure actual delivered air temperature at registers, not just attic ambient, to verify the fix.

HVAC Duct Sealing in Colorado Springs

HVAC Duct Sealing in Colorado Springs stops the conditioned air you’re paying to heat and cool from leaking into attics, crawlspaces, and wall cavities before it reaches your rooms. We use duct sealing mastic, a water-based compound that remains flexible for decades, reinforced with fiberglass mesh tape at joints and seams. For inaccessible sections, we may apply aerosolized sealant through pressurized injection, then verify results with a duct blaster test showing measurable before-and-after leakage reduction.

Most whole-home HVAC duct sealing jobs in Colorado Springs fall between $450 and $1,200. A 1,200-square-foot ranch in the Broadmoor area with accessible basement ductwork might run $550. A larger two-story in Flying Horse with ducts buried in finished ceiling cavities could push toward the upper end. We give you the exact number in writing before any mastic tube gets opened.

Pressure Testing and Documentation

Every sealed system gets a pressure test with digital manometer readings we record and share. Colorado Springs homeowners see the CFM leakage before and after, in writing, with no guesswork. This matters for warranty claims and for verifying that wildfire-season ash infiltration hasn’t reopened gaps we sealed the year before.

Mastic vs. Foil Tape

Foil tape fails in Colorado Springs’s temperature swings. Attics here hit 140°F in July and drop below freezing in January, cycling tape adhesive to brittleness. We use mastic rated for -20°F to 200°F, applied to clean metal with proper cure time. It’s slower work, but it lasts.

Trusted Brands We Service in Colorado Springs

Our equipment roster includes Nikro negative-air machines for pre-sealing cleaning, Honeywell media air cleaners we install when sealing reveals the system needs filtration upgrades, and Aprilaire whole-home humidifiers to counteract the bone-dry air that makes Colorado Springs’s leaky ducts feel worse than they are. We stock common plenum fittings, register boots, and collar connectors for fast turnaround on Colorado Springs jobs, so you’re not waiting a week for a specialty part while your HVAC runs double-time. When Abatement Technologies HEPA filtration makes sense for post-wildfire ash remediation, we spec and install it as part of the sealing scope, not as an afterthought upsell.

Common Duct Sealing Problems We See in Colorado Springs Homes

• Original galvanized steel rusting at seams. In Old Colorado City and Manitou Springs, we regularly find 1960s ductwork where the zinc coating has failed and rust blooms at longitudinal seams, turning small gaps into major leakage points that mastic alone can’t bridge without mesh reinforcement.
• Flexible duct sag and disconnection. Homes built during the 1990s and 2000s growth bursts in Briargate and Stetson Hills often have flex duct that has pulled away from trunk lines or sagged into insulation, crushing airflow and tearing tape joints that were never meant to carry load.
• Red dust infiltration after Front Range windstorms. East of Powers Boulevard, we’ve opened attics after spring wind events and found fine mineral dust packed around register boots, evidence that the home’s envelope is breathing unfiltered outside air through gaps that sealing mastic closes permanently.
• Wildfire ash embedding in duct pores. After active fire seasons in the Waldo Canyon or Black Forest burn scars, ash particles smaller than 2.5 microns find their way into duct seams and register gaskets, requiring thorough cleaning before sealing can adhere properly and last.

Pricing for Duct Sealing in Colorado Springs, CO

We Also Serve Cities Near Colorado Springs

Our crews regularly travel the Front Range corridor for Duct Sealing and related work. We handle Air Duct Cleaning in Colorado Springs and Dryer Vent Cleaning in Colorado Springs, with service extending to Denver, Boulder, Greeley, and Fort Collins. Each location operates independently under The Garrison Standard, so Duct Sealing in Colorado Springs gets the same written pricing and year-long guarantee as every Hollis job.

FAQs About Duct Sealing in Colorado Springs