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Ontario Roof Pros

Every Roofing Service We Offer in Ontario, CA

One team for every roofing job in Ontario — from roof replacement to insurance claim help.

Ontario Roof Pros handles residential and commercial roofing projects across Ontario and the Inland Empire. From roof replacement to insurance claim help, every service below is handled by our own team and backed by our workmanship guarantee.

Start on the Ontario Roof Pros homepage, read what people in Ontario say on our about page, or call (844) 511-2320 and describe what you need in your own words.

Our Roofing Services in Ontario, CA

Roof Replacement in Ontario, CA

Roof Replacement

Replacement here comes down to one question: can the building keep working while the roof comes off? On a distribution building that answer drives the whole sequence, and on a house it decides how long the framing sits open to the sky.

Roof Leak Repair in Ontario, CA

Roof Leak Repair

A leak on a nearly flat roof almost never drips where it entered. Water runs along the flute of a steel deck until it finds a seam or a fastener, so the stain in the office ceiling can sit forty feet from the actual breach in the membrane.

Storm Damage Restoration in Ontario, CA

Storm Damage Restoration

The storms that hurt roofs in this valley are the winter atmospheric rivers, and on a low-slope roof the damage is usually not the wind at all. It is the water that could not leave the roof fast enough.

Hail Damage Roofing in Ontario, CA

Hail Damage Roofing

Damaging hail is uncommon in Ontario. A cold winter cell can drop pea to marble sized stones across the valley, and it does happen, but most roofs we are asked to inspect for hail turn out to have something else wrong with them.

Wind Damage Roofing in Ontario, CA

Wind Damage Roofing

Wind failure on a large low-slope roof begins at the corners. Uplift pressure is highest in the corner and perimeter zones, so a membrane fastened at field spacing all the way to the edge lifts there first and peels inward from a single loose sheet.

Roof Inspections & Moisture Surveys in Ontario, CA

Roof Inspections & Moisture Surveys

A warehouse roof is an asset with a service life. The buildings that get twenty-five years from a membrane are the ones looked at twice a year, and the ones that get twelve are the ones nobody visited between leaks.

Asphalt Shingle Roofs in Ontario, CA

Asphalt Shingle Roofs

Shingles cover most houses in this city, and the mistake we correct most often is shingles installed somewhere they do not belong: a low-pitched addition, a patio tie-in, a converted porch with barely any fall across it at all. Below four in twelve, shingles need doubled underlayment.

Metal Roofing in Ontario, CA

Metal Roofing

Metal is a very good roof in the wrong place more often than people expect. On a wide, nearly flat Ontario warehouse deck, a screw-down metal panel is usually the weaker answer, and we will say that before we quote one.

Tile Roofing in Ontario, CA

Tile Roofing

Concrete and clay tile outlast the people who walk on it. Most tile work we do in Ontario starts with damage from another trade: an air conditioning service call, a solar installation, a satellite mount, a pest crew moving through the attic.

Flat & Low-Slope Roof Systems in Ontario, CA

Flat & Low-Slope Roof Systems

A low-slope roof is a drainage plane with a waterproof skin, in that order. Get the fall right and almost any decent membrane performs.

Roof Coatings & Restoration in Ontario, CA

Roof Coatings & Restoration

A coating is a legitimate way to add years to a sound roof and a very expensive way to hide a wet one. A core cut decides which situation you are in, and no brochure can answer that question for you.

Roof Ventilation in Ontario, CA

Roof Ventilation

There are two ventilation conversations in this city and they have opposite answers. A vented attic needs balanced airflow.

Skylights & Roof Hatches in Ontario, CA

Skylights & Roof Hatches

Skylights in this city are mostly not on houses. They sit in long rows on warehouse roofs, acrylic domes bringing daylight down onto racking and taking a real bite out of the lighting bill in a building that runs two shifts.

Gutters & Downspouts in Ontario, CA

Gutters & Downspouts

Gutters matter less here than in a wet climate for eleven months of the year and more than anywhere for the twelfth. One February storm sends a season's rain through the same valley outlet, and undersized runs let go exactly then.

Fascia, Soffit & Edge Metal in Ontario, CA

Fascia, Soffit & Edge Metal

Rotted fascia in Ontario is almost never weather. In a climate with under a foot of rain a year, trim fails where water was delivered to it: a leaking gutter joint, a missing drip edge, a valley overshooting, a downspout discharging onto the board below.

Chimney & Wall Flashing in Ontario, CA

Chimney & Wall Flashing

In a dry climate a failed flashing hides for years. Nothing shows through summer, the first substantial December storm runs water down the framing, and by then the damage inside the wall is considerably older than the stain on the ceiling.

Emergency Tarping & Water Control in Ontario, CA

Emergency Tarping & Water Control

On a house we tarp. On a warehouse membrane there is often nothing to tarp to, so the emergency becomes water control: pull the standing water off the deck, weld a temporary patch, and protect whatever sits under the leak inside the building.

Commercial & Warehouse Roofing in Ontario, CA

Commercial & Warehouse Roofing

Ontario runs on buildings that cannot close. Fulfilment centers, cold storage, cross-docks and light industrial buildings near the airport all need roofing done around a shift schedule instead of in place of one, and that constraint shapes every decision.

Insurance Claim Help in Ontario, CA

Insurance Claim Help

Most roofs we look at in this valley are failing from age and sun rather than from an event, and an age-related failure is not a claim. Knowing which one you have before you telephone your carrier is worth real money and a good deal of aggravation.

What each of our services covers in Ontario

Open any service to see exactly what is included before you call.

Roof Replacement

Replacement here comes down to one question: can the building keep working while the roof comes off? On a distribution building that answer drives the whole sequence, and on a house it decides how long the framing sits open to the sky. We phase warehouse work by roof section rather than by calendar.

  • roof replacement
  • reroof
  • tear-off and replace
  • recover roof
  • new roof installation
  • deck re-nailing
  • synthetic underlayment
  • phased roof replacement
  • warehouse reroof
  • residential roof replacement
  • roof replacement cost

Roof Replacement in Ontario, CA

Roof Leak Repair

A leak on a nearly flat roof almost never drips where it entered. Water runs along the flute of a steel deck until it finds a seam or a fastener, so the stain in the office ceiling can sit forty feet from the actual breach in the membrane. That is why we trace the drainage path before opening anything.

  • roof repair
  • roof leak repair
  • leak detection
  • flood testing
  • pipe boot replacement
  • membrane patch
  • shingle repair
  • emergency leak repair
  • commercial roof repair
  • wet insulation removal
  • roof repair cost

Roof Leak Repair in Ontario, CA

Storm Damage Restoration

The storms that hurt roofs in this valley are the winter atmospheric rivers, and on a low-slope roof the damage is usually not the wind at all. It is the water that could not leave the roof fast enough. Ponding is a structural load.

  • storm damage roof repair
  • ponding water
  • roof drain retrofit
  • overflow scupper
  • atmospheric river damage
  • deflected roof deck
  • water extraction
  • roof storm restoration
  • winter storm roof repair
  • post-storm roof inspection

Storm Damage Restoration in Ontario, CA

Hail Damage Roofing

Damaging hail is uncommon in Ontario. A cold winter cell can drop pea to marble sized stones across the valley, and it does happen, but most roofs we are asked to inspect for hail turn out to have something else wrong with them. Three things imitate it convincingly.

  • hail damage roof
  • hail inspection
  • test squares
  • granule loss
  • thermal blistering
  • Class 4 impact-rated shingles
  • hail damage report
  • membrane puncture repair
  • soft metal spatter
  • roof bruising

Hail Damage Roofing in Ontario, CA

Wind Damage Roofing

Wind failure on a large low-slope roof begins at the corners. Uplift pressure is highest in the corner and perimeter zones, so a membrane fastened at field spacing all the way to the edge lifts there first and peels inward from a single loose sheet. We inspect attachment before we inspect the membrane.

  • wind damage roof repair
  • Santa Ana wind damage
  • membrane uplift
  • perimeter fastening
  • corner zone attachment
  • edge metal repair
  • lifted shingles
  • displaced roof tile
  • hand-sealed shingles
  • wind-rated roof assembly

Wind Damage Roofing in Ontario, CA

Roof Inspections & Moisture Surveys

A warehouse roof is an asset with a service life. The buildings that get twenty-five years from a membrane are the ones looked at twice a year, and the ones that get twelve are the ones nobody visited between leaks. A commercial inspection produces a numbered roof plan.

  • roof inspection
  • free roof inspection
  • infrared moisture survey
  • core cuts
  • capacitance moisture readings
  • roof plan and condition report
  • drain testing
  • real estate roof certification
  • annual roof maintenance
  • commercial roof survey

Roof Inspections & Moisture Surveys in Ontario, CA

Asphalt Shingle Roofs

Shingles cover most houses in this city, and the mistake we correct most often is shingles installed somewhere they do not belong: a low-pitched addition, a patio tie-in, a converted porch with barely any fall across it at all. Below four in twelve, shingles need doubled underlayment. Below two in twelve they are outside their listing entirely and the right product is a membrane.

  • asphalt shingle roof
  • architectural shingles
  • laminated shingles
  • shingle replacement
  • low slope shingle limits
  • cool roof shingles
  • starter course
  • valley metal
  • step flashing
  • shingle roof repair
  • asphalt shingle roof cost

Asphalt Shingle Roofs in Ontario, CA

Metal Roofing

Metal is a very good roof in the wrong place more often than people expect. On a wide, nearly flat Ontario warehouse deck, a screw-down metal panel is usually the weaker answer, and we will say that before we quote one. The reason is movement.

  • metal roofing
  • standing seam metal roof
  • 24-gauge steel panels
  • Kynar finish
  • concealed clip system
  • R-panel repair
  • corrugated metal roof
  • fastener replacement
  • metal roof coating
  • metal roof installation

Metal Roofing in Ontario, CA

Tile Roofing

Concrete and clay tile outlast the people who walk on it. Most tile work we do in Ontario starts with damage from another trade: an air conditioning service call, a solar installation, a satellite mount, a pest crew moving through the attic. A cracked field tile is a cheap fix and a slow leak if it is left alone.

  • tile roofing
  • concrete tile repair
  • clay tile roof
  • broken tile replacement
  • ridge and hip re-bedding
  • tile roof walk pads
  • tile profile match
  • tile to shingle conversion
  • tile roof repair
  • tile roof replacement

Tile Roofing in Ontario, CA

Flat & Low-Slope Roof Systems

A low-slope roof is a drainage plane with a waterproof skin, in that order. Get the fall right and almost any decent membrane performs. Get it wrong and the best membrane sold simply holds the puddle more neatly than the last one did.

  • flat roof
  • low slope roofing
  • TPO membrane
  • PVC membrane
  • EPDM rubber roof
  • modified bitumen
  • tapered insulation
  • high-density cover board
  • roof crickets
  • flat roof repair
  • flat roof replacement cost

Flat & Low-Slope Roof Systems in Ontario, CA

Roof Coatings & Restoration

A coating is a legitimate way to add years to a sound roof and a very expensive way to hide a wet one. A core cut decides which situation you are in, and no brochure can answer that question for you. Good candidate: a fifteen-year-old warehouse membrane with dry insulation, tight laps, working drains and a chalky surface.

  • roof coating
  • silicone roof coating
  • acrylic elastomeric coating
  • roof restoration system
  • metal roof coating
  • cool roof coating
  • dry film thickness
  • seam reinforcement
  • roof sealing
  • renewable roof warranty

Roof Coatings & Restoration in Ontario, CA

Roof Ventilation

There are two ventilation conversations in this city and they have opposite answers. A vented attic needs balanced airflow. An insulated low-slope deck needs none at all, and cutting vents into one is how water gets invited in.

  • roof ventilation
  • attic ventilation
  • soffit intake vents
  • ridge vent
  • net free ventilating area
  • balanced attic airflow
  • insulation baffles
  • gable vent closure
  • unvented roof assembly
  • attic heat

Roof Ventilation in Ontario, CA

Skylights & Roof Hatches

Skylights in this city are mostly not on houses. They sit in long rows on warehouse roofs, acrylic domes bringing daylight down onto racking and taking a real bite out of the lighting bill in a building that runs two shifts. Those domes are also the oldest thing on many of these roofs.

  • skylight replacement
  • warehouse skylight
  • acrylic dome skylight
  • prismatic polycarbonate skylight
  • curb-mounted skylight
  • deck-mounted skylight
  • tubular skylight
  • skylight leak repair
  • roof hatch
  • smoke vent repair

Skylights & Roof Hatches in Ontario, CA

Gutters & Downspouts

Gutters matter less here than in a wet climate for eleven months of the year and more than anywhere for the twelfth. One February storm sends a season's rain through the same valley outlet, and undersized runs let go exactly then. For houses we install K-style aluminum gutters in continuous runs cut on site, hung on hidden hangers screwed into solid backing rather than on nailed spikes, with outlets sized to the roof area feeding them.

  • gutters and downspouts
  • K-style aluminum gutters
  • six-inch gutters
  • hidden hangers
  • downspout drainage
  • gutter repair
  • gutter cleaning
  • scupper and conductor head
  • gutter replacement
  • rain diverter

Gutters & Downspouts in Ontario, CA

Fascia, Soffit & Edge Metal

Rotted fascia in Ontario is almost never weather. In a climate with under a foot of rain a year, trim fails where water was delivered to it: a leaking gutter joint, a missing drip edge, a valley overshooting, a downspout discharging onto the board below. So we find the delivery mechanism before replacing any wood.

  • fascia repair
  • soffit repair
  • rotted fascia replacement
  • coil-wrapped fascia
  • vented soffit panels
  • drip edge
  • parapet coping
  • ES-1 edge metal
  • eave repair
  • fascia board replacement

Fascia, Soffit & Edge Metal in Ontario, CA

Chimney & Wall Flashing

In a dry climate a failed flashing hides for years. Nothing shows through summer, the first substantial December storm runs water down the framing, and by then the damage inside the wall is considerably older than the stain on the ceiling.

A correct chimney detail has three parts doing their jobs together: step flashing woven into each course, counterflashing cut into a mortar joint or kerfed into stucco and sealed at the reglet, and a cricket on the uphill side of any chimney wide enough to dam water and debris behind it.

  • chimney flashing
  • step flashing
  • counterflashing
  • reglet and kerf cut
  • chimney cricket
  • wall flashing repair
  • pan flashing
  • stucco wall termination
  • chimney leak repair
  • flashing replacement

Chimney & Wall Flashing in Ontario, CA

Emergency Tarping & Water Control

On a house we tarp. On a warehouse membrane there is often nothing to tarp to, so the emergency becomes water control: pull the standing water off the deck, weld a temporary patch, and protect whatever sits under the leak inside the building. The first call sets priorities.

  • emergency roof tarping
  • emergency roof repair
  • temporary roof patch
  • water extraction
  • roof leak containment
  • battened tarp
  • cover tape repair
  • wet patch and fabric
  • 24 hour roofer
  • storm response

Emergency Tarping & Water Control in Ontario, CA

Commercial & Warehouse Roofing

Ontario runs on buildings that cannot close. Fulfilment centers, cold storage, cross-docks and light industrial buildings near the airport all need roofing done around a shift schedule instead of in place of one, and that constraint shapes every decision. That makes it a planning problem as much as a roofing one.

  • commercial roofing
  • warehouse roofing
  • industrial roof replacement
  • distribution center roof
  • cold storage roofing
  • phased reroofing
  • roof asset management
  • NDL warranty
  • rooftop unit coordination
  • commercial roof maintenance
  • commercial roofing contractor

Commercial & Warehouse Roofing in Ontario, CA

Insurance Claim Help

Most roofs we look at in this valley are failing from age and sun rather than from an event, and an age-related failure is not a claim. Knowing which one you have before you telephone your carrier is worth real money and a good deal of aggravation. When there is a genuine event, a dated wind night, a fallen limb, an upstream mechanical failure, documentation decides the outcome.

  • roof insurance claim
  • adjuster meeting
  • roof damage documentation
  • claim scope of work
  • supplement request
  • moisture readings report
  • commercial roof claim
  • wind claim documentation
  • denied roof claim
  • roof condition report

Insurance Claim Help in Ontario, CA

What Ontario property owners ask us

Which roofing services does Ontario Roof Pros handle?

Everything listed on this page, residential and commercial, across Ontario and the Inland Empire. Work is done by our own crews rather than handed to whoever is cheapest that week, which is the only way the workmanship warranty means anything.

Can I combine more than one service in a single job?

Yes, and it is usually cheaper. Bundling roofing work into one mobilization saves setup, disposal and travel, and it means one crew, one schedule and one written free estimate instead of three contractors blaming each other.

Do you give free estimates for every service?

Every one. We come out, measure, look at the real condition of the work area, and put an itemized free estimate in writing with materials and scope spelled out. No charge, no deposit, and no obligation to book.

What Ontario Customers Say

★★★★★
They found the leak forty feet from the stain in our warehouse office, on the flute of the deck, and welded a patch the same afternoon. The report came with photographs and a marked roof plan, and they told us the roof had six good years left rather than trying to sell us a new one.
Marisol R. · Chino
★★★★★
Our tile roof got walked on during a solar install and three tiles cracked. They matched the profile from salvage, reset the course, and checked the whole field for the ones we had not spotted. Priced as a repair, finished in a morning, no upsell attempted.
Dan K. · Upland
★★★★★
We asked for a coating on a low-slope building and they cut cores first, found wet insulation in two areas, and told us a coating would waste our money. Ended up replacing one section and coating the rest. Straight answers and a scope we could actually compare against other bids.
Priya N. · Rialto
★★★★★
Shingle tear-off on a two-storey house with a narrow side yard. They brought a conveyor, kept the driveway clear, dried the roof in the same day, and ran magnets over the yard twice. The flashing work at the chimney is better than what was there before.
Eddie M. · Jurupa Valley
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