Free roof inspection with deck photos before we talk money - GAF and Owens Corning certified installation
Fast, Reliable Roof Inspection Across Calistoga
A roof inspection in Calistoga typically costs $250 – $450 for a standard residential single-family home and takes 60 to 90 minutes on site. You get the findings in writing, with photographs, the same day. If you’re looking for a clear picture of what’s happening up there before a leak turns into drywall repair, call Brennan Roofing at (361) 320-9467.
We know Calistoga roofs because we walk them week in and week out. The town’s 40 – 50°F swing between daytime highs and nighttime lows stresses sealant, flashing, and architectural shingles harder than almost anywhere else in Napa County. That means an inspection here has to look at more than missing shingles. We inspect the full assembly: underlayment, valley metal, drip edge, penetration boots, ridge vent, and ember-resistant detailing. Every inspection ends with a written scope and a fixed price before any repair is ordered. You never have to guess what we found or what it costs.
Why Brennan Roofing Is Calistoga’s Preferred Roof Inspection Company
Brennan Roofing operates under The Garrison Standard, the same disciplined process on every job in Calistoga, whether it’s a quick residential inspection or a full tear-off on a winery estate. The price goes on paper before any work starts, and it does not move at the door. Every technician is background-checked and arrives in uniform. You know exactly who is on your roof, and you know what the visit costs before we set a ladder against the gutter line.
Our Roof Inspection team has spent enough time in the Calistoga historic district to know what design review means in practical terms. We document the existing shingle profile, color, and exposure so that if repair or replacement is needed, the material gets approved before it’s ordered. That single step saves homeowners weeks of delay. The work is backed by the 365-Day Done Right Promise: every inspection finding and any repair that follows is guaranteed in writing for one full year. If a repair fails within that period, we come back at no charge.
Travis Oakley leads the crew, and the standard is his reputation. We answer the phone with a live person, around the clock. No voicemail, no callback queue. When you call Calistoga, you reach a person who can schedule a visit.
Roof Inspection Companies in Calistoga
Roof Inspection Companies in Calistoga are not all built the same, and the differences show up in how the report reads. A real inspection walks the entire roof surface, checks the attic or crawl space for water staining and ventilation, examines flashing at every penetration and valley, and tests the condition of sealant at pipe boots, skylights, and chimneys. We then photograph each finding and write a plain-English summary. You get a documented list of what is sound, what is wearing, and what needs attention now versus in the next two to five years.
Thermal-Cycle Inspection Specific to Calistoga
Most inspection checklists are written for coastal climates. Calistoga is different. We spend extra time on south-facing slopes and valley metal because those take the brunt of the daily expansion-contraction cycle. On a 40-degree swing, sealant and underlayment work harder than most homeowners realize. We look for hairline cracking in asphalt shingles, granule loss that exposes matting, and any sign that flashing has pulled away from the deck.
Documentation for Historic District Compliance
If your home is visible from the street in the downtown historic district, any replacement roof must clear the city’s design review committee. Our inspection report includes the material profile and color coding you’ll need to start that process. We note the shingle or tile type, the exposure, the profile, and the color so you can go straight to the committee with a documented scope instead of a guess. That alone can save two to four weeks.
Commercial Roof Inspection in Calistoga
Commercial Roof Inspection in Calistoga is a different animal from residential work, and treating it the same way misses the most expensive failure modes. Resorts, wineries, tasting rooms, and mixed-use buildings along Lincoln Avenue carry different roof loads and far more foot traffic than a typical home. We inspect low-slope and flat assemblies for ponding, membrane punctures, failed seam welds, and clogged drains, and we check that rooftop equipment curbs and penetrations are still sealed. We also verify that attic or plenum ventilation meets current code for the ceiling assembly.
Winery Estates and Hospitality Properties
Calistoga winery estates often have multiple roof planes, long ridges, and custom material runs that are not stocked locally. Our inspection includes a full plan-view map with panel-by-panel condition notes so your facilities manager can make decisions without walking the roof themselves. We flag issues by priority and by cost band. If a long-lead custom material is needed, the report tells you exactly which sections require it and how much. That keeps your spend pointed at what actually matters.
Flat and Low-Slope Roof Systems
For commercial buildings with TPO, modified bitumen, or metal standing seam, we look for lap-seam failure, rust at fastener lines, ponding that exceeds 48 hours after rain, and penetrations that are losing sealant. We also photograph the drip edge and parapet cap, which are the first places water gets into a flat assembly. The report is structured for what it is: a decision document for maintenance and capital planning.
Trusted Brands We Service in Calistoga
We service and install materials from GAF, CertainTeed, and Owens Corning, and we work with the full GAF line for architectural shingles, which are common across Calistoga’s replacement market. Because local historic district projects often require custom colors and profiles, we also coordinate directly with Atlas and Boral for fire-rated tile and composite options that clear design review. We do not install a material we do not know cold, and we explain the difference between product warranties, roof assembly warranties, and our own written workmanship guarantee so you can choose with confidence. Sourcing locally where possible keeps turnaround on repairs from stretching into weeks.
Common Roof Inspection Problems We See in Calistoga Homes
- Granule loss and hairline cracking from diurnal thermal swings. Calistoga’s 40 – 50°F day-night spread causes architectural shingles to expand and contract daily. The result is premature brittleness that shows up as granules in the gutter and fine cracks across the shingle face, often years before a roof would normally fail in Napa or Santa Rosa.
- Sealant and flashing failure at valleys and penetrations. Summer highs over 100°F bake sealant and then cool, wet winters contract it. We find the most damage around pipe boots, skylight curbs, and valleys where the assembly moves the most. These leaks start small and rot the deck long before anyone sees a ceiling stain.
- Missing or deteriorated ember-resistant detailing. Homes in the wildland-urban interface east and west of town often have older ridge vents, soffit gaps, or drip edges that do not meet current ember-intrusion guidance. We check these specifically, because a roof that sheds water can still let wind-driven embers into the attic during a red-flag warning.
- Historic district compliance gaps on existing roofs. We regularly find homes in the downtown historic district where a previous repair used a shingle profile or color that was never approved. That matters when it’s time for a full replacement. Our report documents the current material so the committee sees exactly what is there before you spend money on new material.
Pricing for Roof Inspection in Calistoga, CA
A standard residential roof inspection in Calistoga runs $250 – $450 for most homes under 3,500 square feet. If the property has multiple structures, a detached garage, a pool cabana, or a guest house, expect the total to land around $500 – $750 because each roof plane gets its own walk and report. Commercial inspections start at $600 for a single low-slope building under 5,000 square feet and scale based on roof size, access, and equipment density. We do not charge extra for the written report or for photographs. They are part of the job. Every inspection includes a written, fixed price for any repair you choose to move forward with, so the number you see on paper is the number you pay. Call (361) 320-9467 to schedule your free estimate. The inspection itself is not free, but the estimate to fix whatever we find is.
We Also Serve Cities Near Calistoga
We run inspections across northern Napa County and into Sonoma County, including Deer Park, Windsor, Santa Rosa, and Healdsburg. If you own property near Calistoga or in one of the surrounding towns, the same written-price process and 365-Day Done Right Promise applies. Our dispatch is coordinated from the brand’s San Francisco Bay Area office; crews serve Calistoga and the surrounding area locally. To schedule across the region, call (361) 320-9467.
Serving Calistoga, CA - Our Local Coverage Area
We’re based in the Calistoga area and know this community well. Use the map below to see our service coverage - if you’re nearby, we can almost certainly help.
FAQs About Roof Inspection in Calistoga
Yes. Our inspection report includes the existing shingle profile, color, exposure, and material type, documented with photographs. That is exactly the documentation the design review committee wants to see before you order replacement material. For homes visible from the street, we also flag whether the current roof appears to match the original or whether it was a previous non-conforming repair. If you need a custom color or discontinued profile, we note that in the report so you can start the approval process the same week. Call (361) 320-9467 to schedule an inspection; estimates for any approved repair are free.
The main reason is the 40 – 50°F swing between day and night in Calistoga, which is larger than most of Napa experiences. That daily thermal cycle expands and contracts the shingle mat and the asphalt layer, causing micro-cracking and granule loss years earlier than the same shingle would show in a milder climate. We inspect for this specifically on south-facing slopes and valleys, where the stress is highest. If we find the shingles are failing early, we document the manufacturer and approximate install date so you can check warranty eligibility. Schedule by calling (361) 320-9467.
Yes. In Calistoga’s wildland-urban interface, we inspect ridge vents, soffit openings, drip edges, and the under-eave area for ember-intrusion vulnerability. A roof that sheds water is not necessarily safe during a wind-driven ember event. We check for gaps, deteriorated soffit screening, and any place an ember could lodge against combustible material. If we find deficiencies, the report lists them with photographs and a fixed repair price. Call (361) 320-9467 to get a full ember-risk assessment as part of your inspection.
We walk the entire roof system and produce a panel-by-panel map with condition notes and priority rankings. For sections that require long-lead materials like custom tile, slate-look composite, or fire-rated shakes, the report tells you the exact square footage and material profile needed. That lets you order materials with confidence and fix your budget in writing before anything arrives on site. We also coordinate with the manufacturer’s rep when needed to confirm current lead times. To discuss a commercial or estate inspection, call (361) 320-9467.
A full inspection covers the roof surface, flashing, penetrations, valleys, ridge vent, drip edge, gutters, and the attic or vaulted-ceiling assembly we can access from inside. We measure the condition of sealant, underlayment, decking, and ventilation, and we document everything with photographs and a written report. The report includes a condition rating for each roof plane and a priority list of recommended work, each with a line-item price. That is what The Garrison Standard means: the same disciplined scope on every home we walk in Calistoga. Call (361) 320-9467 to schedule.
Written by Travis Oakley, Owner at Brennan Roofing, serving Calistoga and northern Napa County under The Garrison Standard.






Before
After
Before
After
Before
After