Nearby city
Roof repair for Gardena homes, shops and light industrial buildings
Gardena has nearly as many flat commercial roofs as pitched home roofs. Our crews handle both, from a shingle leak over a bedroom to a membrane failure over a warehouse floor.
Roofing in Gardena at a glance
ZIP codes we cover here:
- 90247
- 90248
- 90249
Nearest office: Long Beach. Phone answered 24/7.
Call (562) 414-1770Gardena is in the South Bay, northwest of Long Beach. The 405 runs near its southern edge, the 110 runs along the east side and the 91 starts close by to the southeast. Our crews usually get there from downtown Long Beach by the 405 or the 91.
Business owners in Gardena often call us about a roof that leaks over equipment or stock, then ask us to look at their house afterward. We are comfortable on both kinds of roof, and we explain the options in plain terms whichever one we are standing on. On a business roof we also note what the building is used for, since a leak over a server room or finished stock calls for a faster fix than one over a parking area.
Ranch houses beside warehouses and shop roofs
Gardena's neighborhoods are mostly post-war single-story homes, many with attached garages and later additions, plus townhomes, condos and apartment buildings. Most houses carry asphalt shingle, with concrete tile on some newer or remodeled homes and low-slope sections over patios and family rooms.
Light industrial and commercial property makes up a large share of the city, especially along the main boulevards and in its business districts. Those buildings have large low-slope roofs in built-up, modified bitumen, TPO or coated finishes, with rooftop units, skylights and roof hatches that all need sealing.

Roof problems we see most in Gardena
Membrane seams opening up
Single-ply and modified roofs on Gardena businesses fail first at seams and corners, especially after years of summer heat.
Rooftop unit curb gaps
Mechanical curbs get disturbed when equipment is serviced or swapped out. Gaps in the curb flashing let water into the ceiling below.
Plastic skylights cracking
Warehouse skylights yellow and crack in the sun. Leaks around them often look like membrane failure until we get up close.
Overheated ranch home attics
Many older Gardena houses have few roof vents. Trapped heat ages the shingles from underneath and makes the house harder to cool.
Gardena permits, business hours and drive time
Gardena handles roofing permits through its own building department, and both residential and commercial re-roofs need a permit and a final inspection. On commercial jobs we also ask about landlord or property manager requirements, and about rooftop equipment a mechanical contractor may need to disconnect.
For businesses, we plan the work around your hours, stage material where it will not block loading doors and seal each section before we leave. Gardena is a few miles inland from the beach, so it gets some marine layer but less salt than the coastal towns. Summer sun is the bigger enemy of roofs here.
Most-requested here
Roofing services for Gardena
Commercial Roofing
Commercial roofing covers repair, restoration and replacement of low-slope roofs on warehouses, retail centers, offices, restaurants and light industrial buildings, using systems such as TPO, PVC, modified bitumen, built-up roofing, spray foam and coatings.
Read moreTPO Roofing
TPO is a white thermoplastic single-ply membrane whose seams are welded with hot air into one continuous sheet.
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 moreAsphalt Shingle Roofing
Asphalt shingle roofing, also called composition roofing, is the most common roof on Long Beach ranch homes and bungalows.
Read moreAttic Ventilation
Attic ventilation is the set of intake and exhaust vents that lets outside air move through the attic, carrying away heat and moisture.
Read moreFAQ
Questions from Gardena
Is TPO or a coating better for my Gardena warehouse roof?
It depends on what is up there now. A sound roof with only surface wear can often be coated, which costs less and adds years. If the roof is wet underneath or has failed in many places, a new TPO membrane is usually the better spend. We take core samples before recommending either.
Do you replace roof skylights on Gardena industrial buildings?
Yes. We replace cracked plastic skylights with new units and reflash the curbs so the membrane ties in properly. Where the light is no longer needed, we can remove a skylight and deck over the opening. Either way, we leave the opening safe for anyone walking the roof.
Do Gardena ranch homes need more attic vents when they are re-roofed?
Many do. A lot of older Gardena houses were built with few vents, and a re-roof is the easiest time to add ridge vents or low-profile vents. Better airflow helps shingles last and keeps the attic cooler in summer.
Roof trouble in Gardena?
Call Denco at (562) 414-1770. Someone answers 24 hours a day, and our crews work out of Long Beach and La Mirada.