Greeley, CO · Flat Roof

Flat Roof Contractors in Greeley, Colorado

Commercial or residential flat roof — compare local roofing companies. 28 local roofers listed.

Short answer: Flat and low-slope roofs in Greeley are usually TPO ($5.50–$9 a sq ft installed), EPDM ($4.50–$8) or modified bitumen ($3–$7); the membrane lasts 15–25 years, mostly decided by how well the drains are kept clear. In Greeley: 0.5 heavy-rain days a year (1 inch+). Ask any roofer for a license number and a certificate of insurance.

Get a free quote See Greeley in numbers
  • 0.5heavy-rain days a year (1 inch+)
  • 17.4 inrain a year
  • 40days a year at 90°F or hotter
  • 38%of homes are not single-family houses

How much life is left in my Greeley roof?

Typical lifespans are published ranges for each material; for a Greeley house, real life also depends on installation, attic ventilation and the weather Greeley gets.

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Flat and low-slope roofs in Greeley must be engineered and maintained for snow load — pooling meltwater under a heavy snowpack is the leading cause of membrane failure here, and drain clearing each fall is not optional. Common flat roof systems in Greeley include TPO (heat-welded, energy-efficient), EPDM (durable rubber membrane), and modified bitumen — each with different cost, longevity, and maintenance profiles worth discussing with a local contractor.

Greeley in numbers

Public records for Greeley and its county, not estimates. Each figure shows its source.

  • #3of 209Greeley ranks #3 of the 209 cities we cover for hail days of 1 inch or more.
  • #3of 209Greeley ranks #3 of the 209 cities we cover for freeze-thaw days.
  • #200of 209Greeley ranks #200 of the 209 cities we cover for yearly rainfall (low end).
  • #15of 209Greeley ranks #15 of the 209 cities we cover for largest hailstone on record.

Hail reports per year in the county

Hail events per year in the county, 2017 to 2026* 24 2017 63 2018 77 2019 38 2020 22 2021 18 2022 38 2023 32 2024 66 2025 8 2026*
Hail events per year in the county, 2017 to 2026*
201724
201863
201977
202038
202122
202218
202338
202432
202566
2026*8

386 recorded events across 9 full years plus 2026 to June represented in the data, about 42.0 per represented full year. 2019 had the most events among represented full years: 77.

2026 covers only January to June: NOAA's file ends there, so it is not counted as the worst year or in the yearly average.

Source: NOAA hail events, county level · data as of 2017–2026*

When storms hit Greeley

Hail reports by month in the county, all years combined 0 Jan 0 Feb 0 Mar 7 Apr 90 May 136 Jun 120 Jul 85 Aug 38 Sep 4 Oct 0 Nov 0 Dec
Hail reports by month in the county, all years combined
Jan0
Feb0
Mar0
Apr7
May90
Jun136
Jul120
Aug85
Sep38
Oct4
Nov0
Dec0

Most hail reports come in June; the season runs May to September. Book inspections and repairs before that window, not after.

Source: NOAA Storm Events · data as of 2014–June 2026

Roofing trade around Greeley

  • 65 roofing companies with payroll in the county, employing about 458 people; 75% have fewer than 5 employees.
  • A roofer's median pay here is $49,940 a year (Greeley, CO Metro Area).
Source: Census CBP · data as of 2023 Source: BLS OEWS, roofers · data as of May 2025

Greeley storm record: Weld County

What the National Weather Service logged in Weld County in 2014–2026. County level, because storm reports are filed by county, not by city limits.

  • 1869Founded
  • 4,659 ft (1,420 m)Elevation
  • Horace GreeleyNamed after

Where hail of 1 inch or more was reported in Weld County

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  • 261 to 1.74 in
  • 1011.75 to 2.74 in, golf ball to tennis ball
  • 132.75 in and up, baseball

Largest plotted stone: 4.25 in. Bigger dots are bigger stones.

414 reports of 1 inch or larger have coordinates; the map shows the 140 largest. Each dot is a reported location, not a storm path.

Sources: NOAA, Census county outline

Biggest hail days

DateLargest hailReports that dayWhere it was reported
June 12, 2017 4.25 in, about the size of a grapefruit 15 Pierce
May 20, 2021 3.25 in, about the size of a teacup 7 Stoneham
July 13, 2023 3.25 in, about the size of a teacup 5 Stoneham
“Severe thunderstorm produced damaging hail, ranging from quarter to softball size across eastern Larimer and northwestern Weld Counties. The tornado was assigned a damage rating of EF-1.”
National Weather Service report, June 12, 2017
Source: NOAA Storm Events Database · data as of 2014–2026

Last big hail on record

June 22, 2026

Hail of 1.75 inches (golf ball) or larger fell on 38 days in 2014–2026. Our records end where NOAA's do, so a newer storm may not be listed yet.

Strongest tornado

EF2 · May 7, 2016

It stayed on the ground for 8.8 miles and was up to 1320 yards wide. Storm chaser confirmed a multi-vortex tornado near Interstate 76. The tornado continue to track northeast and crossed over Empire Reservoir along the Weld/Morgan county line. At least a dozen trailers were damaged or destroyed.

Strongest thunderstorm gust

90 mph · June 20, 2024

Multiple powerlines down 22628 county road 39, about 1.5 miles south of La Salle.

What it means for flat roof

Flat and low-slope roofs hold hail on the surface instead of letting it bounce. With 4.25-inch hail on record in Weld County, ask what membrane and cover board the contractor specifies.

Storm data: NOAA Storm Events (public domain). City facts: Wikidata (CC0).

What it costs in Greeley

Asphalt-shingle re-roof, 2,000 sq ft home, adjusted for Greeley labor and material prices. Your quote depends on roof size, pitch and scope.

That typical price is about 3.3% of the median Greeley home value ($369,600).

Source: Census ACS (Greeley city) · data as of 2019–2023

Full Greeley cost guide by material →

What Greeley's climate means for flat roof

  • Flat and low-slope roofs in Greeley must be engineered for snow load and kept drained — ponding under a melting snowpack is the top failure point here.
  • Reflective TPO or a white coating earns its premium in Greeley, where dark membranes absorb punishing heat and age years faster.
  • Greeley's freeze-thaw cycling works open membrane seams and flashing laps — heat-welded TPO seams outlast taped or adhered ones in this climate.

Roofers in Greeley, CO

28 listed, first 20 shown. Roofers we verified against a public registry come first.

This list covers roofing companies generally. Confirm flat roof experience, materials, insurance and current availability with each company. A Verified badge refers to the registry check, not a confirmed specialty.

Flat Roof in Greeley: questions

How do I find a flat roof company in Greeley?
PickARoofer lists roofing companies serving Greeley, CO. This is a general roofing directory; confirm flat roof experience and availability with each company. A Verified badge describes a separate registry check, not a confirmed service specialty or insurance check. Confirm scope, insurance and availability directly. Requests go to one contractor at a time, with up to three attempts; a response or start date is not guaranteed. Free for homeowners.
Will insurance pay for storm-related flat roof in Greeley?
Coverage, deductibles and reporting deadlines depend on your policy and circumstances. Document damage safely, contact your insurer promptly and ask for a written repair scope. This directory cannot determine coverage.
When is hail season in Greeley?
June is the worst month: 28% of the 480 hail reports NOAA holds for the county came then. Reports run from May to September. Book the inspection before May, while crews still have open dates.
How big does hail get near Greeley?
The largest hail NOAA logged near Greeley measured 4.25 inches, about the size of a grapefruit. Hail of an inch or more fell on 118 days in the same record. The biggest day was June 12, 2017, with 15 reports. The National Weather Service calls hail of 1 inch or larger severe; the bigger the stone, the more likely it is to crack a shingle.
How old are the homes in Greeley, and does it matter for the roof?
The median home in Greeley was built in 1984, and 46% of homes date from before 1980 (Census ACS). A roof on a home that old has often been re-covered at least once, so ask the roofer whether there is a second layer underneath: it changes the tear-off cost. The area sees about 132 freeze-thaw days a year, which loosens flashing and sealant.
What does roofing cost in Greeley?
For an average 2,000 sq ft home we model asphalt-shingle re-roof at $7,560 to $16,740 in Greeley, around $12,150 in the middle. That is about 3.3% of the median home value of $369,600. Your quote moves with roof size, pitch and how many layers come off.
How many roofing companies work around Greeley?
The Census Bureau counts 65 roofing companies with payroll in Weld County, employing about 458 people. 75.4% of them have fewer than five employees, so most quotes come from owner-run crews. A roofer's median pay is $49,940 a year (BLS).
How do I maintain a flat roof through Greeley's winters?
Flat roof maintenance in Greeley centers on drainage: clear drains and scuppers each fall before the first snow. Ponding meltwater under a deep snowpack is the leading cause of membrane failure here — water weighs 5.2 pounds per square foot per inch of depth, and even a few inches of standing water adds significant unplanned load. After heavy snow events, a professional roof rake or heating cables at the drain area prevent the most dangerous pooling. Annual spring inspections after snowmelt catch seam and flashing damage before it compounds.
What is the difference between TPO, EPDM, and modified bitumen for Greeley properties?
TPO (thermoplastic polyolefin) uses heat-welded seams and a white reflective surface — the current industry standard for new commercial and residential flat roofs, best for energy efficiency. EPDM (ethylene propylene diene monomer) is a rubber membrane installed with taped or adhesive seams — very durable and forgiving, widely used on residential flat roofs for decades. Modified bitumen is a reinforced asphalt sheet applied by torch or cold adhesive — economical and familiar to many local Greeley contractors, though it runs warmer than TPO and may require more frequent coating. Cost, pitch, and building type typically dictate the right choice — a Greeley flat-roof specialist can walk you through the tradeoffs for your specific structure.
Do I need a permit for flat roof in Colorado?
Permit requirements depend on the property, scope of work and local jurisdiction. Check with the city or county building department and confirm who will obtain any required permit before work starts.

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Figures above: NOAA Storm Events Database (hail, wind, tornado; county of the city, 2014–2026), U.S. Census Bureau American Community Survey 5-year estimates (housing), NASA POWER (temperature and rain, 2014–2023). Prices: our published price method. How we collect data.