Business and industrial roofs
Commercial roofing in Long Beach, CA
Your building's roof leaks over inventory, desks or a sales floor, and you need it fixed without shutting the business down or guessing what the work will cost.
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. You need it when leaks start affecting operations or the roof has reached the end of patching. In Long Beach it typically runs $6.90 to $14.80 per sq ft.
A commercial roof is a working part of a business. It carries HVAC units, exhaust fans, skylights, solar, signage supports and the technicians who service them. When it leaks, the cost is not only the repair: it is wet stock, closed aisles, damaged ceiling tiles and staff moving desks under buckets. Owners and property managers need a roofer who can find problems early, plan work around operations and explain choices in plain terms.
Our crews handle commercial roofs across Long Beach and nearby cities, from small strip centers to warehouses near the port. This page explains how we assess a commercial roof, how we plan projects around a running business, and what records we give owners for budgeting and future work.
Repair, restore or replace: building a roof plan
Most commercial roofs are not all good or all bad. A roof may have a few failing seams and wet insulation in one corner while the rest is sound. We start with a roof walk and, where needed, core samples to map dry and wet areas. That map lets us separate what needs repair now, what can be restored with a coating and what is truly at the end.
From there, we lay out options with costs side by side, so an owner can choose repair this year and replacement in a later budget, or a restoration that defers tear-off.
- Targeted repair of seams, flashings and penetrations
- Restoration coatings over dry, sound sections
- Partial replacement of wet areas
- Full tear-off and new system when the roof is spent
Planning the work around your operations
We plan commercial projects with the business, not just the roof. That means confirming work hours, where our crew can stage materials and dumpsters, which entrances stay clear and when noisy tear-off can happen. For retail and restaurants, we often work early mornings or after closing. For warehouses, we coordinate with shipping schedules so trucks and forklifts are not blocked.
Tear-off is done in sections that can be closed in the same day, so the building is never left open overnight. We protect interior areas below active sections with plastic and keep a contact on site for the building manager throughout the job.
Rooftop equipment, drains and other trades
Rooftop units, exhaust fans and gas lines need to be lifted or disconnected during a re-roof, and new curbs often have to be raised to meet the new roof height. We coordinate with your HVAC and electrical contractors so equipment is disconnected and reset on schedule, and we flash every curb with the new system.
Drains are where commercial roofs fail first. We replace corroded drain bodies and clamping rings, add overflow scuppers where none exist and confirm downspouts discharge away from the building.
Records owners and managers can use
Every commercial job we do ends with a written record: a roof plan marking the system installed, drains, units and repaired areas, plus before and after photos. Material warranties vary by product and manufacturer, and we give you the paperwork for the system on your roof.
For buildings we maintain, we keep a running log of visits and repairs. When budgeting season comes, owners can see what was done and what is coming.
When to call about commercial roofing
Leaks over stock or desks
Water reaching inventory, offices or a sales floor needs a fast visit to stop losses.
Stained ceiling tiles
Brown spots on drop ceiling tiles often appear long before an active drip.
Water ponding by drains
Large puddles left days after rain point to clogged drains or a sagging roof.
Seams open at curbs
Flashing pulling away from HVAC curbs and exhaust fans is a common commercial leak source.
Buying or leasing building
A roof walk before closing or signing a lease shows what the roof will need.
Planning tenant improvements
New units, skylights or solar should be coordinated with roof work so penetrations are flashed correctly.
Typical cost in Long Beach
What commercial roofing usually costs
$6.90 to $14.80 per sq ft
- Roof system chosen and insulation required
- Wet insulation and decking to remove
- Rooftop units to lift, raise curbs and reset
- After-hours or phased scheduling
- Drain replacement and overflow additions
These are typical Long Beach ranges, and the real number comes after we walk the roof and take core samples. See every price range.
Commercial roofs from the port to Long Beach Blvd
Long Beach has a wide spread of commercial buildings: warehouses and light industrial roofs near the port and on the Westside, older brick and stucco storefronts along Long Beach Blvd, Anaheim Street and 4th Street, retail centers near the traffic circle and along Bellflower Blvd, and offices near the airport. Many older buildings have layers of built-up roofing and drains that have not been replaced in decades.
Salt air near the harbor and coast corrodes metal edges, drain rings and rooftop unit stands faster, and winter atmospheric-river storms test every drain at once. The City of Long Beach requires a building permit for re-roofing, and Title 24 can require cool-rated roofing on some low-slope re-roofs, so we check what applies before ordering. For buildings in nearby cities, we work with each city's building department from our Long Beach and La Mirada offices.
How the job runs
How our crew handles commercial roofing
- 1
Roof walk and cores
We inspect the roof, take core samples where needed and map dry, wet and failing areas.
- 2
Options and budget
We lay out repair, restoration and replacement options with costs for each.
- 3
Schedule with operations
Work hours, staging, entrances and equipment shutdowns are agreed with the building manager.
- 4
Install in sections
Crews work section by section, closing each in the same day and protecting interiors below.
- 5
Records and handover
You receive a roof plan, photos and material paperwork, and we walk the roof with your manager.
FAQ
Commercial Roofing questions
Can commercial roofing work happen while my business stays open?
Yes, on most projects. We work in sections, stage materials away from customer areas and schedule loud work for early or after-hours times. Each section is closed the same day.
How do I know if my commercial roof should be repaired or replaced?
We map the roof with a walk and core samples to show where it is dry, wet or failing. If most of the roof is dry, repair or restoration usually makes sense. If wet areas are widespread, replacement is the better long-term spend.
Do you coordinate commercial roofing with our HVAC contractor?
Yes. Rooftop units often need disconnecting, lifting or new curbs during a re-roof. We set the schedule with your HVAC and electrical contractors so equipment is reset on time.
What records do you provide after a commercial roofing project?
You get a roof plan showing the system, drains, units and repaired areas, plus before and after photos and material paperwork. These help with budgeting, sale or lease, and future repairs.
Can you inspect a commercial roof before we buy or lease a building?
Yes. We walk the roof, check drains and flashings, take cores if needed and give you a written condition summary. Call us early so the visit fits your due diligence period.
Where we do this work
Commercial Roofing around Long Beach
Our crews do this work across Long Beach and the cities around it. A few of the places we cover:
A leak, a quote, or a question about your roof?
Call Denco at (562) 414-1770. Someone answers 24 hours a day, and our crews work out of Long Beach and La Mirada.