The Most Common Issues Found in Summit County Mountain Homes
Hey there , Shea with Two Moose Home Inspections. I’ve been crawling through attics, basements, and snow-covered roofs right here in Summit County for years. After hundreds of inspections in our mountain towns, one thing is crystal clear: our high-elevation lifestyle is absolutely incredible, but it’s incredibly tough on houses. Between 300+ inches of annual snow, intense UV rays at 9,000+ feet, wild freeze-thaw cycles, and the rocky geology of the Rockies, certain problems show up again and again.
Here are the six issues I encounter most often during pre-purchase inspections—and what every buyer and seller should know before the next transaction.
1. Missing or Non-Functional GFCI Outlets
Ground Fault Circuit Interrupter (GFCI) protection is one of the quickest safety wins I test for—and one of the most frequently missing or broken items I flag.
In Summit County homes built before the mid-2000s, I regularly find bathrooms, kitchens, garages, laundry rooms, and exterior outlets without GFCIs or with outlets that no longer trip properly. Our heavy snow and spring runoff mean moisture gets everywhere, and an unprotected outlet near a sink or wet deck can become a real shock hazard.
What I always tell my clients: Modern code requires GFCI protection in all wet locations. Fixing a handful of outlets is usually inexpensive ($200–$500 for an electrician), but ignoring it can lead to insurance issues or worse. During every inspection, I test every receptacle with my GFCI tester and clearly note exactly which ones need attention.
2. Aged Decks and Deck Issues
One of the biggest safety concerns I document here in Summit County is aging or poorly maintained decks. Our extreme conditions—intense UV radiation, massive snow loads (often exceeding 100–150 psf in higher areas), repeated freeze-thaw cycles, and heavy spring moisture—accelerate deck deterioration faster than almost anywhere else.
Common problems I see include:
- Rotting wood in joists, beams, posts, and ledger boards (especially where snow melts and water pools against the house)
- Loose, wobbly, or undersized railings and spindles that don’t meet current code spacing or height requirements
- Warped, cracked, or splitting deck boards from UV damage and thermal expansion/contraction
- Corroded or failing fasteners, connectors, and flashing (leading to hidden structural weakness)
- Inadequate footings or posts that shift due to frost heave
- Decks not built to handle our heavy snow loads, sometimes resulting in sagging
Many vacation homes sit empty through winter, so small issues like minor rot or loose connections go unnoticed until inspection day. South- and west-facing decks often show the worst UV fading and drying out.
Pro tip from the field: I always give decks a thorough going-over—shaking railings, checking connections underneath, and probing for soft spots. Repairs can range from a few hundred dollars for board replacement and sealing to $10,000+ for full structural reinforcement or a complete rebuild. Catching these issues early is critical for safety and can make a big difference in negotiations.
3. Weathered Exteriors – Siding, Trim & Paint
Our intense sun, wind-driven snow, and repeated freeze-thaw cycles beat up exteriors faster than almost anywhere else in Colorado.
I regularly see:
- Peeling paint and faded stain on log or fiber-cement siding
- Cracked or separated trim around windows and doors
- Wood siding cupping or splitting where moisture wicks up from melting snow
Vacation homes that sit empty for months often show the worst weathering because small problems go unnoticed until the next buyer walks through.
Pro tip from the field: Walk around the house with me during the inspection—many buyers miss exterior issues until after closing. Catching them early can save thousands in repairs or give you strong negotiating power.
4. Elevated Radon Levels
This one is Summit County-specific and non-negotiable.
More than 60% of the homes I test in Summit County come back above the EPA action level of 4.0 pCi/L. The rocky, uranium-rich geology under our towns means radon gas seeps up through foundations and into living spaces. It’s odorless, colorless, and the second-leading cause of lung cancer in the U.S.
Every inspection I perform includes a radon test using a short-term or continuous monitor. When levels come back high (and they often do—10–20+ pCi/L is not uncommon), mitigation is usually straightforward: a sub-slab depressurization system with a fan typically drops levels below 2.0 pCi/L for $2000–$3500.
Buyer advice: Never skip radon testing in Summit County. Free test kits are available through Summit County Environmental Health, but I strongly recommend professional testing during the inspection period so the results are solid for negotiations.
5. Mechanical Room Issues (Boilers, Furnaces & Water Heaters)
Most Summit County homes use hydronic (hot-water) heating systems with boilers tucked into mechanical rooms or basements. After 15–25 years these systems start showing their age, and our brutal winters don’t forgive neglect.
Common red flags I document include:
- Rust and corrosion on the boiler or expansion tank
- Leaking pressure relief valves or circulator pumps
- Improper venting (especially dangerous with combustion appliances in tight spaces)
- Aging water heaters with sediment buildup or failing anodes
- Missing carbon-monoxide detectors near fuel-burning equipment
Because so many properties are second homes, routine maintenance sometimes slips. A $300 service call now can prevent a $10,000 emergency boiler replacement in January.
During every inspection I fire up the system (when it’s safe), check combustion efficiency, and look for tell-tale signs of past leaks on the floor.
6. Shingle Deterioration & Roof Wear
Our roofs take the biggest beating of all.
High UV radiation at altitude dries out asphalt shingles years ahead of schedule. Add wind-driven hail, heavy snow loads, and ice dams, and you get:
- Granule loss (those little black specks in the gutters)
- Curling, cracking, or brittle shingles
- Missing or torn shingles on the windward side
- Early signs of ice-dam damage along eaves
I regularly see 15–20-year-old roofs that look 30 years old. A full roof replacement in Summit County can run $15,000–$30,000+, so catching deterioration early is huge for buyers.
During every inspection I walk the roof (when safe), use my drone on steeper pitches, and document every valley, ridge, and flashing detail.
Final Recap
These six issues—GFCIs, aged decks, weathered exteriors, radon, mechanical-room problems, and shingle wear—aren’t deal-breakers. They’re simply the reality of owning a home at 9,000 feet in Summit County. The good news? Almost everything on this list is fixable, and knowing about it upfront gives buyers leverage and sellers time to prepare.
Inspector
| PO Box 1182, Silverthorne, CO 80498 |
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