Architectural Shingle
Architectural asphalt shingles. A durable, popular choice for Wyoming homes.

New roofs, repairs, and storm restoration across the Evanston corridor: asphalt shingle, standing-seam metal, and commercial flat systems.
Wyoming roofs take a beating. Hail, wind off the Uintas, deep snow load, and a freeze-thaw cycle that works every nail loose. A roof that looked fine last spring can leak by fall. January lows in Evanston average near 10 degrees, per Weather Atlas climate normals, cold enough to stiffen asphalt and crack it instead of flexing.
Gregco Roofing & Construction works on roofs across the Evanston corridor. We look at your roof, photograph visible conditions, and show you what we find. Then you decide. We document. You decide.
We install asphalt shingle and standing-seam metal on homes, and TPO and EPDM membranes on commercial flat roofs.
Architectural Shingle, Standing-Seam Metal, Commercial Flat (TPO / EPDM), and Repair & Leak Tracing — each explained below.
Architectural asphalt shingles. A durable, popular choice for Wyoming homes.
Standing-seam metal sheds snow instead of holding it and gives wind no tabs to lift. A strong fit for the Evanston corridor.
TPO and EPDM membrane for flat and low-slope commercial roofs, installed to spec.
A missing shingle or a slow leak does not always need a full roof. We trace the source, document it, and fix what is actually wrong.
Three steps, always in the same order: on-site visit, we show you the photos, we do the work.
Wyoming property owners ask 15 questions most often about roofing — answered here in plain language.
Tear-off decides it. Roof size and pitch set the starting estimate, but how many layers come off and what the deck looks like underneath can move it once work begins. We give you a schedule before the crew arrives, tell you if what we find changes it, and cover open deck at the end of every working day rather than trusting the forecast overnight.
Four things move the number more than anything else: the size and pitch of the roof, the material you choose, how many existing layers have to come off, and what condition the decking is in once they do. The first two you can decide up front. The last two only become clear on site, which is why the written estimate follows the inspection instead of coming before it.
Material and installation quality set the range; exposure decides where a particular roof lands inside it. Wyoming works on a roof from three directions at once — ultraviolet light at elevation, wind that gets under anything loose, and freeze-thaw cycling all winter. Rather than quote an age, we read the wear on your roof: granule cover, how the shingles flex, and what the flashing has done.
Yes, standing-seam is the system we install most. It sheds snow instead of holding it, gives wind no tabs to lift, and its factory coil coating holds colour under ultraviolet light better than a granule surface does. We do not quote a lifespan figure for it, because panel gauge, coating and flashing detail are what actually decide that — and those are worth asking any contractor about.
Request an inspection online or call. We come out, walk the roof where it is safe to, photograph what we find, and show you those photographs before any number comes up. The written estimate follows from that scope, so what you are pricing is the roof we actually looked at. The first inspection is complimentary for properties in the service area.
TPO and EPDM are single-ply membranes used on flat and low-slope commercial roofs. TPO is a light-colored sheet that reflects sunlight; EPDM is a black rubber sheet that absorbs it. At Wyoming's altitude both face strong ultraviolet light, so seam and flashing detail decide the outcome more than the material does. We install both.
A low-slope roof carries snow instead of shedding it, so the weight sits there until it melts. Kemmerer averages about 47 inches of snow a year, per US Climate Data, and much of it stays put. When drains and scuppers ice over, the melt has nowhere to go and ponds against seams and flashings.
Often, yes. Single-ply membrane fails first at seams, flashings and penetrations rather than across the open field, and those areas can be reworked while the rest of the roof stays in service. Widespread splits, soft spots underfoot, or wet material below the membrane point to replacement. We are a Versico Authorized contractor.
Roofing runs year-round here, but the season changes the method. Asphalt stiffens in deep cold and cracks instead of flexing, and January lows in Evanston average near 10 degrees, per Weather Atlas climate normals. We watch the forecast, cover open deck before the end of each day, and give you the schedule before the tear-off starts.
Ice-and-water shield is a self-adhering membrane laid along the eaves beneath the shingles. The International Residential Code requires an ice barrier where there is a history of ice forming along eaves, which fits every town we work in. When we open a roof we check whether the existing one runs far enough up the slope.
It does. Standing-seam metal has a smooth surface with concealed fasteners and no exposed nail heads, so snow releases in sheets once the sun warms the panel. That helps with snow load and creates a hazard below. Panel layout has to account for doorways, walkways and where vehicles park.
Hail damage shows as round bruises where the granules are knocked off and the mat underneath is exposed. Check soft metal first: vents, flashing and gutter aprons dent before shingles do. Fresh hail damage is nearly invisible from the ground, so photographs taken on the roof settle the question.
The insurance company does. We document the visible condition of the roof with photographs and give you a written estimate in priority order. The insurance company determines coverage and payment under the policy. We do not decide what is covered, and we do not speak for the insurance company. You decide what to do next.
Sometimes, but covering an old roof hides the deck, and the deck is where hidden rot and failed fasteners live. A second layer also adds weight to a roof that already carries Wyoming snow. We confirm how many layers exist and the condition of the deck before proposing either a tear-off or a layover.
Ask for the local business license and current workers' compensation standing, then check both. We are licensed by the City of Evanston, with workers' compensation coverage in good standing with the Wyoming Department of Workforce Services. Ask any roofer for the same two documents.
WYOMING SERVICE AREA
Roofing is available across Evanston, Kemmerer, Cokeville, Rock Springs, Green River, Mountain View, Lyman — every listed city links to its own page.
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Red pins identify communities where Gregco currently accepts service inquiries. The map is for orientation, not a surveyed service boundary.
Request a roofing estimate
Share the address, what you noticed, and when the issue began. Gregco will confirm the service area and contact you about the next step.