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Shingle and flat roof repair for Paramount homes and buildings
Paramount roofs are a mix of pitched shingle on small post-war houses and flat roofs on back units, garages and industrial buildings. Most leaks we trace here start where those two meet.
Roofing in Paramount at a glance
ZIP codes we cover here:
- 90723
Nearest office: Long Beach. Phone answered 24/7.
Call (562) 414-1770Paramount sits just north of Long Beach, close enough that our downtown crews reach most addresses quickly. The 91 cuts across the south end of the city, the 710 runs just to the west and the 105 passes a little to the north. Our La Mirada office is east along Alondra Boulevard, so calls from either side of town get covered.
Much of our work in Paramount is repair rather than full replacement. Owners of rentals and small commercial buildings want a leak stopped properly and a straight answer about how much life the rest of the roof has. We give both, and we tell you when patching has stopped making sense.
Small post-war houses, back units and industrial strips
Paramount's residential streets are mostly modest single-story homes from the post-war decades, with stucco walls and low gable or hip roofs covered in asphalt shingle. Many lots carry a second dwelling or a converted garage at the back, and those structures usually have a flat or very low-slope roof built separately from the house.
Apartment buildings line several of the main roads, and the city has a sizable industrial and commercial base with warehouses, shops and yards under large flat roofs. Those roofs are typically built-up hot mop, modified bitumen or a single-ply membrane, often with a coating added later. It is common to find three or four roof types on a single block.

Roof problems we see most in Paramount
Rear unit roofs pooling water
Flat roofs on back houses and converted garages were often built with very little slope. Water sits for days after a storm and finds the first weak seam.
Shingle edges lifting in wind
Older shingles lose the bond of their seal strips after years of sun. Santa Ana gusts then lift the edges along rakes and ridges.
Hot mop blistering
Built-up roofs on small industrial buildings blister and crack as the asphalt dries out under constant UV. Each blister is a future leak point.
Low joints between roofs
Where a flat rear addition meets the main shingle roof, the flashing is often just a smear of mastic. That seam is the leak we find most often in Paramount homes.
Paramount permits, rentals and getting to the job
Paramount has its own building department, and a re-roof needs a permit and a final inspection. We pull the permit, schedule the inspection and are on site for it. For flat roof replacements, we check whether Title 24 cool roof rules apply before choosing the membrane or cap sheet.
Many Paramount properties have tenants in place, so we plan around them. We tell residents the work hours in advance, keep driveways clear when we can and dry-in each section the same day. Paramount is inland enough to miss most of the salt air, but summers are hot, which is hard on flat roofs and asphalt shingle alike.
Most-requested here
Roofing services for Paramount
Shingle Roof Repair
Shingle roof repair replaces damaged asphalt composition shingles and fixes the vents, boots and flashing set into them.
Read moreFlat Roof Repair
Flat roof repair fixes leaks and wear on low-slope roofs: blisters, split seams, failed drains, parapet leaks and worn coatings.
Read moreHot Mop Roofing
Hot mop roofing is a built-up roof made of several layers of roofing felt set in hot liquid asphalt, finished with a mineral cap sheet or gravel.
Read moreEmergency Roof Repair
Emergency roof repair is the work that stops water getting in fast: tarping, temporary patches and securing loose material until a permanent repair can be made.
Read moreTorch-Down Roofing
Torch-down roofing is modified bitumen sheet whose underside is melted with a propane torch so it fuses to the layer below, usually in a two-ply system with a granulated cap sheet.
Read moreFAQ
Questions from Paramount
Can you fix the flat roof on the back house of my Paramount property without touching the main roof?
Yes. We often repair or replace a rear unit roof on its own. We do check the joint where it meets any neighboring roof, because a new flat roof tied into old flashing will still leak. If the main roof is close to the end of its life too, we tell you so you can decide on timing.
What does a roof repair visit usually cost on a Paramount house?
Our usual range for roof repair is $385 to $1,450 for a typical repair visit. Flat roof leaks, shingle repairs and flashing work each have their own ranges. The real number comes after we get on the roof and see what is causing the leak.
Do you handle hot mop roofs on industrial buildings in Paramount?
We do. We repair blistered and cracked built-up roofs, and when one is past repair we replace it with a new hot mop system, torch-down or a single-ply membrane. We can usually work while the business stays open, since nearly all of the work happens up top.
Roof trouble in Paramount?
Call Denco at (562) 414-1770. Someone answers 24 hours a day, and our crews work out of Long Beach and La Mirada.