Central Valley
Commercial Roof Inspection and Maintenance in Fresno County
Fresno County covers about 6,000 square miles across the middle of the valley, with 15 cities and a commercial base of distribution centers, food and raisin processing, and medical campuses. Our scan gives each of those roofs a Roof Condition Score so repair dollars go where the water is.

What kinds of commercial buildings are in Fresno County?
Fresno County flat roofs fall into 4 groups: large distribution centers on the south side of Fresno, food and fruit packing plants in Selma, Reedley, Sanger and Kingsburg, medical and office buildings in north Fresno and Clovis, and older industrial buildings around downtown Fresno.
Selma calls itself the Raisin Capital of the World, and the farm towns southeast of Fresno hold some of the oldest packing house roofs in the valley.
South Fresno along Highway 99 has filled with big-box distribution buildings over the past decade, many with roofs well over 500,000 square feet. Clovis and north Fresno carry hospitals, medical offices and retail centers near Highway 168 and Herndon Avenue.
- South Fresno industrial area: distribution centers and manufacturing along Highway 99 and Golden State Boulevard
- Southeast Fresno and the airport area: food processing, warehouses and light industry near Fresno Yosemite International Airport
- Selma, Kingsburg and Fowler: raisin and fruit packing, cold storage and processing
- Reedley, Sanger and Parlier: tree fruit packing houses and agricultural warehouses
- North Fresno and Clovis: hospitals, medical offices and retail centers
| Building type | Common roof system | Typical age | What Fresno County does to it |
|---|---|---|---|
| South Fresno distribution center | White TPO | 3 to 20 years | Heat and very large drain areas |
| Raisin or fruit packing house | Built-up or spray foam | 25 to 50 years | Decades of patches over wet layers |
| Cold storage building | Spray foam | 10 to 30 years | Condensation under cold rooms |
| Clovis medical office | Modified bitumen or PVC | 10 to 30 years | Dense HVAC equipment |
| Downtown Fresno industrial building | Built-up roof with gravel | 40 to 70 years | Ponding and failing scuppers |
What does the Fresno County climate do to a flat roof?
Fresno averages more than 100 days a year above 90 degrees, so Fresno County roofs wear out mostly from heat and sun rather than rain.
Summer heat shrinks membranes and cooks older built-up roofs until they crack, while winter tule fog and about 11 inches of yearly rain find the openings. Smoke and ash from Sierra wildfires also settle on roofs some summers and clog drains.
How often should commercial roofs in Fresno County be inspected?
Fresno County commercial roofs should be inspected 2 times a year, in spring and in fall, and after any summer with heavy wildfire smoke or ash.
Packing houses also benefit from a check before their busiest season begins. Our commercial roof inspection page explains what each visit covers.
What does a maintenance program cost in Fresno County?
A maintenance program for a 300,000 square foot distribution center in Fresno County costs $66,000 to $75,000 a year on our Protect program, priced at $0.22 to $0.25 per square foot with a $2,500 minimum.
Protect fits most Fresno County distribution and processing roofs, because scheduled repairs keep young roofs under warranty and older roofs working. Medical office owners often start on Monitor, while packers with many aging buildings use Manage for capital planning. Compare all 3 tiers for Fresno County on the maintenance programs and pricing page.
Fresno County figures use our published rates: Monitor $0.12 to $0.15 per square foot a year with a $1,500 annual minimum, Protect $0.22 to $0.25 per square foot a year with a $2,500 annual minimum, Manage $0.40 to $0.45 per square foot a year with a $4,500 annual minimum.
How soon can you scan a roof in Fresno County?
We can scan a roof in Fresno County as soon as roof access is confirmed after your request, and a 300,000 square foot distribution center takes about 6 hours at roughly 50,000 square feet an hour, with the PE-stamped report delivered within 48 hours.
A 300,000 square foot distribution roof can be scanned in about 6 hours, and summer scans start at first light. Book your Fresno County scan through our roof scan request form, or compare counties on the service areas page.
Which Fresno County cities and business districts do you serve?
We serve all of Fresno County, and the 9 cities and districts below are where most of its flat commercial roofs sit.
- Fresno: the county seat, with distribution, processing, medical and older industrial buildings
- Clovis: medical offices, retail centers and light industry
- Selma: raisin packing and processing buildings
- Reedley: tree fruit packing houses and cold storage
- Sanger: packing, warehousing and agricultural service buildings
- Kingsburg and Fowler: fruit packing, cold storage and small manufacturing
- Kerman and Mendota: agricultural processing on the west side
- Coalinga: oil, agricultural and public buildings in the southwest
- Easton and Caruthers: unincorporated packing and farm service buildings
Fresno County has 15 cities with their own building departments, and unincorporated areas such as Easton, Caruthers, Del Rey and Friant go through the Fresno County Department of Public Works and Planning. Reroofs must meet Title 24 cool roof rules.
FAQs
How long does a scan take on a 300,000 square foot Fresno warehouse?
At about 50,000 square feet an hour, a 300,000 square foot roof takes roughly 6 hours to scan, and the PE-stamped report follows within 48 hours.
Do old raisin packing houses in Selma usually have hidden moisture?
Many do. Decades of patching and recovering can trap wet layers under a dry-looking surface, and only a scan shows how much of the roof is still sound.
Does wildfire smoke damage flat roofs?
Ash and soot settle into drains and onto coatings. Heavy ash seasons call for drain clearing and a closer look at coating condition.
Do you cover the west side towns like Kerman and Mendota?
Yes, we cover the whole county, from Clovis and the foothills to Kerman, Mendota and Coalinga on the west side.
Can you scan a Clovis hospital roof without disturbing patients?
Yes. The scan is quiet and needs no interior access, and we coordinate rooftop routes around air handlers and helipads.
What would Protect cost for a 300,000 square foot distribution center?
At $0.22 to $0.25 per square foot, a 300,000 square foot roof costs $66,000 to $75,000 a year on Protect.
Who permits roof work in Easton or Caruthers?
Easton, Caruthers, Del Rey and Friant are unincorporated, so the Fresno County Department of Public Works and Planning issues roof permits there.
Can one program cover packing houses in Reedley, Sanger and Selma?
Yes. One program covers buildings across the county, and every roof is ranked by condition so the worst are repaired first.
How long does a roof scan take on a distribution center in Fresno County?
A roof scan on a 300,000 square foot distribution center in Fresno County takes about 6 hours at roughly 50,000 square feet an hour, and the PE-stamped report follows within 48 hours.
Which Fresno County cities do you cover?
We cover flat and low-slope commercial roofs in every part of Fresno County, including Fresno, Clovis, Selma, Reedley, Sanger, Kingsburg and Fowler, Kerman and Mendota, Coalinga and Easton and Caruthers.
Schedule a non-destructive roof scan anywhere in Fresno County.
Trusted since 1983 on over 20,000 commercial roofs. California License 435836.