
Downey Roof Pros: Roof Replacement, Leak Repair & Flashing Work
Expert residential and commercial roofing services. Free written estimates and a photo record of every penetration we open.
- ✓Licensed and insured California roofing contractor
- ✓Free written estimates with a numbered photo record
- ✓Se Habla Español
- ✓Written workmanship warranty on what we install
Why Downey Chooses Downey Roof Pros
- ✓Every penetration photographed and logged individually, not summarised as "flashings serviceable"
- ✓Flashing priced as its own line item in the estimate instead of buried in a square-foot rate
- ✓Equipment set on curbs with removable counterflashing, so future service does not mean cutting the roof
- ✓We close dead openings permanently during a reroof rather than shingling over them
- ✓Hose-tested repairs from the low side up, because a leak you cannot reproduce is a leak you have not found
- ✓We will tell you when re-flashing beats replacement, and put it in writing with photographs
How It Works
Estimate and penetration count
We walk the roof and photograph every vent, flue, curb, skylight, cooler saddle and solar foot, then note which are original and which have been repaired. The written estimate prices the flashing package as its own line rather than burying it in a square-foot number.
Scope agreed in writing
Before anything starts you get materials by name, a decking allowance, the ventilation changes, which dead openings get closed permanently, and what happens to the solar array. We pull the City of Downey reroof permit and schedule the inspection.
Detail-first installation
Deck repairs, then self-adhered target patches at each penetration, then underlayment, then flashings, boots, collars and curbs, then the covering. Building it in that order is the whole point, because a flashing installed after the fact is a flashing sitting on top of the roof.
Water test and photo handoff
We hose-test the penetrations from the low side up, run magnets over the property, and hand you a numbered photo set matching the estimate. The workmanship warranty is written, and we come back after the first real storm to confirm it held.
Our Roofing Services in Downey, CA

Roof Replacement
A tear-off is the one day in a roof's life when every opening in it is reachable at once. We plan Downey replacements around that fact: which vents stay, which dead openings get decked over, and which flashings get rebuilt instead of reused.

Roof Leak Repair
Where a stain lands on your ceiling and where water entered the roof are rarely the same place. Water runs down the underside of the deck, crosses rafters, follows a wire or a duct, and shows up a room away.

Storm Damage Roof Restoration
Southern California storms are volume events rather than impact events. One atmospheric river can drop more rain on a Downey roof in three days than the previous three months combined, and it arrives sideways on a south wind rather than straight down.

Hail Damage Roof Repair
Hail reaches Downey, but rarely at a size or density that destroys a roof. Which means the most useful thing this page can do is tell you when what you are looking at is not hail at all, and save you an inspection fee.

Wind Damage Roof Repair
Santa Ana winds arrive from the wrong direction. They come out of the northeast, the opposite of the pattern most of these roofs were laid to shed, and they do their worst work wherever the roof plane is already interrupted.

Roof Inspections
An inspection that skips the rooftop equipment is half an inspection. On most Downey houses the equipment and the openings it needs are where the roof will actually fail, so that is where our report spends most of its pages.

Asphalt Shingle Roofing
Asphalt shingle is the right covering for most Downey houses, and it very rarely fails as a shingle. It fails at the interruptions.

Metal Roofing
This is the page where we talk people out of a product. Standing seam is an excellent roof and it is the wrong choice for a great many Downey houses, for a reason that has nothing at all to do with its cost.

Tile Roofing
On a tile roof the tile is not the waterproofing. The underlayment is.

Flat & Low-Slope Roofing
The flat roofs we work on in Downey are mostly small: a rear addition, a garage, a porch, a bay over a laundry room. Small area, and a startling number of holes in it, because that is exactly where the house chooses to put its equipment.

Roof Coatings & Sealing
A coating is a resurfacing product. It is not leak repair, and the fastest way to waste a few thousand dollars on a Downey roof is to spray one over a leaking penetration and hope the film does the work the flashing would not.

Roof Ventilation
Ventilation is the only roofing upgrade that requires cutting new holes in a roof in order to work. That trade-off deserves stating plainly, and it is why we design a ventilation change rather than adding vents until the roof feels sufficiently vented.

Skylights
A skylight is the largest hole you will ever voluntarily cut in your own roof. That is not an argument against them.

Gutters & Downspouts
Gutters get treated as trim. On a house with rooftop equipment they are a drainage system with several uninvited inputs, and that is what really decides where they need to be sized up and where they can stay as they are.

Fascia & Soffit
Rotten fascia is almost never the fascia's fault. It is a receipt for something that failed further up the roof, and replacing the board without finding that cause just buys you a fresh board to ruin over the next few winters.

Chimney Flashing
The chimney is the biggest single interruption on most Downey houses, and it is the one most often patched rather than flashed. Tar over a joint is not a repair.

Emergency Roof Tarping
Emergency work is about stopping water tonight without manufacturing tomorrow's problem. A tarp fastened the wrong way turns one leak into twenty, because every fastener driven through a sound slope is a brand-new hole in it.

Commercial Roofing
Commercial roofs in and around Downey are defined by what sits on top of them. Packaged HVAC units, exhaust fans, refrigeration line sets, make-up air, grease ducts and satellite mounts, all clustered across a low-slope field with drains between them.

Insurance Claim Support
We document roofs. We do not adjust claims, and the most genuinely useful thing we can tell a Downey owner is when not to file one, because a denied claim still sits on your record afterwards.
What Downey Customers Say
Three companies told us we needed a new roof. These guys spent an hour with a hose, found two cracked vent boots and a loose cooler saddle, and fixed all three for a few hundred dollars. Two rainy seasons later, still dry.
Full tear-off on a 1954 house with a swamp cooler and solar. They coordinated the panel removal with our installer, rebuilt the cooler opening as a real curb, and closed off an old vent hole we did not even know was there.
Our skylight had leaked for years. They showed us it was condensation from the bathroom, not the roof, put in a proper head flashing and cricket anyway, and told us to fix the exhaust fan. Honest and unusually clear about it.
Flat roof over the addition kept leaking at the air conditioner. Previous repair was a pitch pan full of goop. They cut in a curb with counterflashing and it has not moved since. Photo report was better than the last inspection we paid for.
Downey Roof Pros is a licensed, insured roofing contractor in Downey, CA handling roof replacement, roof leak repair, asphalt shingle and concrete tile roofs, flat and low-slope membrane, standing seam and corrugated metal panels, K-style aluminum gutters, and every flashing detail between them. Residential and commercial, from a single cracked pipe boot to a full tear-off with new decking.
Most of what we repair here is not the field of the roof. It is a hole in it. Southeast Los Angeles County houses carry swamp coolers, furnace flues, plumbing vents, bath and kitchen exhaust, condenser line sets, and more rooftop solar every year. Each one is a penetration, and the flashing around it decides how long the covering above it lasts.
So we quote flashing as work rather than as an afterthought: lead and galvanized pipe jacks sized to the pipe, storm collars on flues, self-adhered target patches at the deck, counterflashing cut into a reglet, and curbs under equipment that stays. Free written estimates, a photo record of every penetration we open, and a written workmanship warranty on what we install.
About Downey Roof Pros in Downey, CA
Downey Roof Pros works the Gateway Cities from a simple premise: on the houses and small commercial buildings here, roofs rarely fail in the middle. They fail where something comes through them. So we built the company around the flashing work most crews treat as the last hour of the job, and we quote it, photograph it and warranty it as the main event.
That shows up in ordinary ways. We size a pipe jack to the pipe instead of using whatever is in the bundle. We put equipment on curbs with removable counterflashing so the next service call does not mean cutting the roof. We cut counterflashing into a reglet rather than caulking it to brick. We keep a numbered photo record so a claim, a sale or the next repair starts from evidence instead of memory.
There are jobs you should not hire us for. If your roof is sound and only its openings leak, do not let anyone sell you a replacement, including us, and we will put that in writing with photographs.
If you need a coating over wet insulation, or an array reset onto unflashed mounts, or a storm claim written up on a roof that is simply worn out, we are the wrong company. Interior drywall and paint are not our trade either, and we will say so rather than learn on your ceiling.
Recent Projects Across the Gateway Cities




Service Areas
Downey Roof Pros serves Downey, CA and surrounding communities including:

Commercial and industrial roofing across the Gateway Cities
Strip retail along Firestone and Lakewood Boulevard, tilt-up warehousing toward Santa Fe Springs and Commerce, medical and office near the hospitals, restaurants with grease-laden exhaust: the common thread is a low-slope field crowded with equipment.
We survey the curbs and line-set penetrations before the membrane, coordinate with the mechanical contractor so new penetrations get curbed before the unit lands, and keep a written log of every trade that goes up there. For property managers running several buildings, that log turns roof spending into a budget instead of a series of emergencies.
- ✓Heat-welded TPO and PVC single-ply, with PVC where kitchen exhaust puts grease on the roof
- ✓Modified bitumen where foot traffic is heavy or the deck is complicated
- ✓Rooftop unit curbs, welded pipe boots and line-set penetrations detailed before equipment lands
- ✓Walkway pads and defined service routes so HVAC calls stop creating leaks
- ✓Tapered insulation, crickets uphill of curbs, drain and scupper flashing
- ✓Leak surveys that start at the equipment rather than at the field membrane
- ✓Restoration coatings on sound substrates, with penetrations reinforced first
- ✓Maintenance programmes with a photo log and a written roof-access record
Frequently Asked Questions
Does my swamp cooler have to come off when the roof is replaced?
Yes, and that is a good thing. The unit gets disconnected and lifted, the opening is rebuilt as a proper curb with counterflashing rather than a mortar bed or a mastic seal, and the cooler is set back down on a gasket.
If the cooler is no longer used, this is the cheapest moment you will ever get to close that opening permanently: we deck it, patch it and shingle over it, and the house has one fewer hole in it forever.
Will a new roof void my solar warranty?
It can, which is why we ask who installed the array before we quote. Many production and workmanship warranties require the original installer to do the detach and reset, so we coordinate rather than take the panels off ourselves. If the mounts were lag-screwed straight through the shingles with no flashed standoff, we will tell you plainly, because we will not set an array back down onto unflashed feet.
The stain on my ceiling is nowhere near a vent. Can a penetration still be the cause?
Usually it is. Water entering at a boot or a curb runs down the underside of the sheathing, crosses rafters, and follows a wire, a duct or a truss until something stops it, which is often several feet from where it got in. That is why we start in the attic looking for rust trails on nails and staining direction, then hose-test one suspect at a time from the low side up rather than guessing from the ceiling.
Do I need a permit to reroof a house in Downey?
Yes. Reroofing is permitted work in Downey as it is across California, and the permit exists partly to get an inspection on the underlayment and flashings before the covering hides them. We pull it in our name, schedule the inspection and hand you the paperwork. A crew that offers to skip the permit is offering to skip the one moment somebody independent looks at the details that matter.
Is metal roofing a good idea on a Downey tract house?
Often not, and we would rather say so up front. Standing seam works because the panel is continuous from eave to ridge, so a roof carrying a cooler, a flue, two plumbing vents and a bath fan asks the panel to be something it is not. On a garage, an addition or a clean uninterrupted slope it is excellent. On a heavily penetrated tract roof, an architectural laminate or a single-ply membrane is the honest recommendation.
How long do pipe boots last, and can they be replaced without a new roof?
A bare neoprene collar in Downey sun typically hardens and splits well before the shingles around it are finished, and yes, boots are replaceable on their own. We lift the courses above, swap the jack for one sized to the pipe, add a self-adhered target patch and reset the shingles. Doing a dozen of them costs a small fraction of a replacement, and on a roof with a sound field it is the right call.