Free roof inspection with deck photos before we talk money - GAF and Owens Corning certified installation
Fast, Reliable Roof Replacement Across St. Helena
Roof replacement in St. Helena typically runs $12,000 – $28,000 for a standard single-family home, with most projects completed in 3 – 5 business days once materials arrive. We handle everything from permits to final cleanup, and our Roof Replacement team serves every corner of the valley, from the historic homes along Main Street to the newer builds up by Howell Mountain Road.
St. Helena sits in a pocket of Napa Valley where summer heat pushes past 90 degrees for weeks straight, and winter storms roll in off the Pacific with surprising force. That thermal swing, what roofers call “thermal cycling,” beats up shingles faster here than in coastal towns. We’ve replaced roofs on Craftsman bungalows near Lodi Lane and on vineyard estate homes off Deer Park Road, and the pattern is consistent: St. Helena roofs age hard because the climate doesn’t let up. Our crews are based throughout Northern California, with dispatch and scheduling coordinated from our Los Angeles office, so we can pull materials and labor quickly when a St. Helena homeowner needs a full replacement.
Call (325) 246-5075 to schedule your free estimate. We’ll put a written price in your hands before any work starts.
Why Crestview Roofing Is St. Helena’s Preferred Roof Replacement Company
We’ve earned our reputation in St. Helena by showing up when we say we will and charging what we quoted. Our technicians are background-checked and uniformed, you’ll get a live trackable arrival time, and every job includes before-and-after photo documentation sent straight to your phone. That’s The Relay Visibility Guarantee, and it’s how we operate on every Roof Replacement in St. Helena.
Dylan Pace, who leads Crestview Roofing, built this company in 2000 on the idea that homeowners deserve to know exactly who’s coming, when they’ll arrive, and what they’ll pay. No four-hour windows, no surprise charges, no silence after the invoice clears. Our 365-Day Done Right Promise covers every repair for a full year in writing, and if something fails, we come back free. Calls are answered by a live person 24/7, not a voicemail loop.
Roof Replacement Contractor in St. Helena
Roof Replacement Contractor work in St. Helena means stripping the old roofing system down to the deck, inspecting for rot or structural damage, and installing a complete new assembly: underlayment, shingles or flat membrane, flashing, vents, and ridge cap. Most St. Helena homeowners need this when their roof hits 20 – 25 years, after significant storm damage, or when multiple leaks start appearing. A typical full replacement on a 2,000-square-foot home in St. Helena runs $15,000 – $24,000 using architectural shingles, while larger homes or premium materials push toward the upper end.
When Repair Stops Making Sense
Patching works once, maybe twice. When you’re looking at a third repair in two years, or when more than 30% of the roof surface is compromised, replacement saves money. We also handle Roof Repair in St. Helena for cases where the damage is isolated, and we’ll tell you straight which path makes more financial sense.
Decking and Structural Work
St. Helena’s older homes, especially the pre-1970 builds near the downtown corridor, often have original 1×6 skip sheathing rather than modern plywood. We replace rotted decking as needed, never as an automatic upsell. You’ll see photos of every board we pull and every replacement we install.
Asphalt Shingle Roof Replacement in St. Helena
Asphalt Shingle Roof Replacement remains the most common request we get from St. Helena homeowners, and for good reason: modern architectural shingles from GAF and Atlas deliver 30 – 50 year lifespans at a price point that works for most budgets. A standard three-tab shingle replacement on a typical St. Helena home starts around $12,000, while dimensional architectural shingles with enhanced wind ratings run $18,000 – $28,000. We also install Roof Installation in St. Helena for new construction and custom builds.
Heat and UV Resistance Matter Here
St. Helena’s 150+ days of annual sunshine and summer temperatures in the mid-90s cook standard shingles. We specify UV-resistant granules and proper attic ventilation on every replacement, because a roof that survives Minnesota winters often fails prematurely under Napa Valley sun.
Color and Style Matching
HOAs in the Silverado Resort area and certain historic districts have strict guidelines. We pull the exact manufacturer color swatches and submit documentation for approval before ordering materials, so your project doesn’t stall over a shade dispute.
Trusted Brands We Service in St. Helena
We install GAF Timberline HDZ, Atlas StormMaster Slate, and Tamko Heritage series shingles on most St. Helena homes, with Boral clay and concrete tile available for Mediterranean-style estates. Every material is manufacturer-backed, and we maintain relationships with regional distributors so we’re not waiting three weeks for a special order. For flat or low-slope sections common on modern additions and ADUs, we use TPO and modified bitumen systems with 15 – 20 year warranties. You’ll know the brand, the warranty length, and the exact product number before we nail the first shingle.
Common Roof Replacement Problems We See in St. Helena Homes
- Thermal cracking from valley heat swings. St. Helena’s summer highs and cool nights cause asphalt shingles to expand and contract aggressively. We see horizontal cracks in 15-year-old roofs that should last 25, especially on west-facing slopes that bake all afternoon.
- Wildfire ember vulnerability on older wood shake roofs. Several hillside neighborhoods still have original cedar shake roofs from the 1970s. These are non-compliant with current Cal Fire defensible space requirements, and replacement with Class A rated composite or tile is often necessary for insurance continuation.
- Failed flashing around chimney clusters in historic districts. Many Main Street area homes have multiple chimneys from original heating systems. The stepped flashing corrodes, and previous repairs used caulk instead of proper metal replacement, leading to chronic leaks that full replacement finally solves.
- Sagging ridges on post-war ranch homes with original 1×8 decking. The gentle slopes common in 1950s – 60s St. Helena subdivisions don’t shed water as aggressively as steeper pitches. Combined with undersized structural support, we see ridge sagging that requires decking replacement and structural reinforcement during full roof replacement.
Pricing for Roof Replacement in St. Helena, CA
| Service | Typical Range in St. Helena |
|---|---|
| Basic asphalt shingle replacement (1,500 – 2,000 sq ft) | $12,000 – $18,000 |
| Architectural shingle replacement (2,000 – 2,500 sq ft) | $18,000 – $28,000 |
| Flat/low-slope membrane replacement (TPO/modified bitumen) | $8,000 – $16,000 |
| Roof decking replacement (per 100 sq ft) | $400 – $700 |
| Chimney flashing replacement (during re-roof) | $800 – $1,500 |
What moves you within these ranges? Roof size and complexity are the big ones. A simple gable roof on a rectangular footprint costs less than a hip roof with multiple dormers. Material choice matters: GAF three-tab saves money upfront, Atlas architectural shingles add durability and wind rating. Decking replacement adds labor and plywood costs. We don’t guess at these numbers during a phone call. We measure every plane, photograph the condition of your current roof, and deliver a written line-item quote before any work starts. The price we quote is the price on your invoice. Call (325) 246-5075 for your free estimate.
We Also Serve Cities Near St. Helena
Our crews work throughout Northern and Southern California. If you’re outside St. Helena city limits, we also provide roof replacement in St. Helena and surrounding communities including Los Angeles, San Diego, San Jose, and San Francisco. Same standards, same written pricing, same live arrival tracking.
Serving St. Helena, CA – Our Local Coverage Area
We’re based in the St. Helena 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 Replacement in St. Helena
We typically schedule estimates within 2 – 3 business days for St. Helena properties, with replacement work starting 1 – 2 weeks after you approve the written quote. Material lead times vary by brand; GAF and Atlas shingles usually arrive within a week, while specialty Boral tile orders can take 2 – 3 weeks. Call (325) 246-5075 to check current availability.
Yes. We replace roofs from the historic core near Main Street and Adams Street up to the hillside estates along Howell Mountain Road and Deer Park Road, including the Silverado Resort area and vineyard properties off Lodi Lane. If your St. Helena address has a 94574 ZIP code, we serve it.
We provide emergency tarping and temporary weatherproofing within 24 hours for storm-damaged St. Helena roofs, but full replacement is planned work, not an emergency service. If high winds or falling branches have opened your roof, we’ll secure it immediately and schedule replacement once materials are on hand. For urgent weatherproofing, call (325) 246-5075 anytime; a live person answers 24/7.
St. Helena pricing runs roughly 10 – 15% above Napa or Vallejo and about on par with Sonoma, mainly due to steeper access roads on hillside properties and stricter Napa County permit requirements. The 94574 building department requires specific wind uplift documentation for ridge and hip installations, which adds planning time but not significant material cost. We pull all permits and schedule inspections as part of our standard service.
Every full replacement includes the manufacturer’s material warranty, 10 years for three-tab shingles and lifetime limited for most architectural lines, plus our 365-Day Done Right Promise on all installation workmanship. If any repair we perform fails within a year, we fix it free, including a free second visit. You’ll receive both warranties in writing before work begins.
Written by Dylan Pace, Owner at Crestview Roofing, serving St. Helena since 2000.






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