Roof Replacement in St. George, Utah
Nobody wants a new roof. What people want is a straight answer about whether they actually need one — and in St. George, where UV and thermal cycling age roofs on their own schedule, that answer isn't always what a roof's birthday suggests. Some 15-year-old shingle roofs here are done. Some 25-year-old tile roofs need underlayment, not replacement.
We handle full roof replacement across Washington County: tear-off, decking inspection, and installation of systems built for this climate. But we start every job the same way, with a free inspection and a written comparison of your real options. If a repair buys you five good years, you'll see that math before anyone talks about replacement.
Get Your Free Roof Inspection
Repair or Replace? How the Decision Actually Gets Made
Age alone doesn't decide it. Here's what does:
The gray zone in between is where the inspection earns its keep. Moisture readings, photos of the underlayment condition, decking checks at the vulnerable points. We put the evidence in the estimate so you can see which side of the line your roof is on, and if it's genuinely borderline, we'll price both paths and tell you what we'd do if it were our house.
One St. George-specific note: on tile roofs, there's a third option most homeowners don't know exists — replacing the underlayment while reusing your tile, at roughly half the cost of full replacement. If you have a tile roof, read our tile roofing page before deciding anything.
What a Full Roof Replacement Includes
Complete Tear-Off
We strip the roof to the decking. Layover installations (new shingles over old) are cheaper upfront and we don't recommend them here: they trap heat, hide decking problems, and shorten the new roof's life in a climate that's already hard on it.
Decking Inspection & Repair
With the old roof off, we inspect every sheet of decking and show you photos of anything that needs replacing before new material goes down. Older St. George homes often have plank decking or early OSB that's seen decades of attic heat; this is where surprises live, and we price decking repair transparently per sheet rather than burying it.
Underlayment & Water Barriers
New high-temp synthetic underlayment across the deck, with upgraded protection at valleys and penetrations, the points where desert roofs actually fail. This layer matters more here than the spec sheet suggests, because it's what stands between a monsoon cell and your ceiling.
New Flashing & Drip Edge
Old flashing reused under a new roof is the most common shortcut in the industry and the most common source of year-two leaks. We replace flashing at chimneys, walls, and penetrations, and install new drip edge at eaves and rakes.
Ventilation Done Right
Attic temperatures in St. George summers are brutal on roofing from below. Correct intake and exhaust ventilation extends the new roof's life and takes real load off your cooling bill, and we calculate it for your actual attic rather than copying whatever was there.
Material Selection for This Climate
For shingle roofs, that means high-UV-rated architectural shingles; manufacturers like Malarkey and Owens Corning both make lines rated for exactly the heat and thermal cycling this market dishes out. For tile and flat systems, material decisions run deeper. See our tile roofing and flat roofs pages for the full picture.
Our Roof Replacement Process
01
Free Inspection
We walk the roof, photograph everything, moisture-check suspect areas, and establish honestly whether you're a repair, a replacement, or somewhere in between. About an hour. You get the photos.
02
Honest Estimate
A written, line-item quote within 24-48 hours, including the repair-versus-replace comparison when it's a real question. Materials, tear-off, decking contingency pricing, permit, and cleanup, all itemized so you can compare our bid line by line against anyone's.
03
The Work
We pull the City of St. George permit, protect your landscaping, and complete most residential replacements in one to three days, weather permitting. During tear-off we photograph the decking and walk you through anything unexpected before touching it — no surprise change orders after the fact.
04
Final Walkthrough
Full cleanup, a magnetic nail sweep of your yard and driveway, and a walkthrough of the finished roof with you, with photos of every stage from bare decking to final ridge cap.
Roof Replacement Cost in St. George
For most St. George homes, a full asphalt shingle replacement runs roughly $7,000 to $14,000. Tile and flat systems price differently enough that they have their own pages. Here's the landscape:
*Typical Washington County ranges; estimates only. Your price turns on roof size, pitch, material, tear-off layers, and decking condition: the things the free inspection establishes before anyone quotes you a number.
What moves the number most: square footage and pitch first, material second, then the unknowns: extra tear-off layers and decking condition. Our estimates price the decking contingency per sheet upfront, so if we find damage during tear-off you already know what it costs.
The quote isn't the scary part. The mid-job surprise is.
Why St. George Homeowners Choose Us for Replacement
We'll tell you if you don't need one.
A meaningful share of our inspections end in a repair recommendation or a "you've got a few years yet." That honesty costs us replacement jobs and wins us the ones that matter.
No surprise change orders.
Decking contingency priced per sheet in the original estimate, photos of anything we find during tear-off, and your sign-off before extra work happens.
Built for this climate.
Material selection, underlayment spec, and ventilation calculated for St. George heat and monsoon exposure, not copied from a national template written for somewhere with weather.
Roof Replacement Questions, Answered
Find Out What Your Roof Actually Needs
Maybe it's a replacement. Maybe it's a repair and five more good years. Either way, the answer comes from the roof — not from whoever's selling hardest.
Or Call: 435-222-7141
