Commercial Roofing Contractor in San Diego
Commercial Re-Roofs Run Like Commercial Projects
Flat and low-slope roof replacement for property owners, HOAs, churches and small businesses across San Diego County — scheduled around your operations, priced as a fixed line-item contract, and run on site by an owner who spent years as a commercial superintendent.
Call or text (619) 840-4712 for a fast response
What’s Included in a Commercial Roof Replacement
Every commercial re-roof is scoped as a complete system — deck to drains — not a patch over a failing roof.
Roof inspection with moisture survey and core cuts where needed
Tear-off and disposal of the existing roofing system
Deck inspection, with wet or rotted decking replaced at pre-priced unit rates
New insulation, including tapered insulation to correct ponding
TPO, PVC, modified bitumen or built-up membrane installation
Flashings, HVAC curbs, pipe penetrations, scuppers and drains
Parapet caps and coping, reused or replaced
Permit, Title 24 cool-roof compliance and final inspection
Manufacturer and workmanship warranty package
Why Property Owners and Managers Choose Foremost
Owner on site: Oliver Erbes ran an $18M+ commercial project as superintendent before starting Foremost
Fixed-price, line-item proposals with unit prices for hidden conditions — no surprise change orders
Work phased around tenants, services and business hours
Certificates of insurance, lien releases and daily photo reports as standard paperwork
Licensed, bonded and insured California General Contractor, CSLB #1133184
Commercial Roofing Across San Diego County
San Diego’s commercial roofs take more UV than almost anywhere in the country, and the first heavy rain finds every failed seam, clogged drain and ponding low spot.
We replace and repair roofs on retail centers, offices, churches, warehouses, multifamily buildings and HOA common areas from Pacific Beach to El Cajon.
We regularly serve:
San Diego, Santee, El Cajon, La Mesa, Lakeside, Kearny Mesa, Miramar, Mission Valley, Pacific Beach, Clairemont, and surrounding areas.
Our Commercial Roofing Process
1. Inspection & Report
We walk the roof, check drains, seams, flashings and deck condition, and document it with photos.
2. Fixed-Price Proposal
Line-item scope, membrane options, schedule, and unit prices for wet insulation or deck replacement.
3. Scheduling Around Your Operations
Phasing, staging and tenant notices are set before the first tear-off.
4. Tear-Off, Dry-In & Installation
Each section is removed and made watertight the same day; penetrations and details are flashed to manufacturer spec.
5. Inspection & Warranty Package
Final inspection, manufacturer warranty registration, lien releases and close-out documents.
Daily photo updates from the owner running your job — not a project manager you’ve never met.
Commercial Roofing FAQs
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Most small-commercial re-roofs we price land between $25,000 and $100,000, depending on roof size, tear-off, insulation, drainage corrections and the membrane system. You get a fixed, line-item price after a roof inspection, not a per-square guess over the phone.
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Yes. We phase the tear-off so no section is left open overnight, stage materials away from entrances, and schedule the noisy work around your hours when it matters. Tenants and staff get notice before each phase.
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If the deck and insulation are dry and the membrane has life left, a repair or a reflective coating can buy years at a fraction of the cost. If moisture is already in the insulation, a coating just traps it. We tell you which one you have after the inspection, with photos, and we handle the permit and inspection either way.
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Yes. You get a certificate of insurance naming the association or owner, conditional and unconditional lien releases with every payment, a written schedule before we start, and one point of contact for the board or the manager. We've handled roofs on church and commercial buildings, including roofs with telecom and HVAC equipment on them.
Need a Commercial Roof Estimate in San Diego?
If your roof is past its warranty, ponding after rain, or showing stains on the ceiling below, get it inspected before the rainy season — not after.
We handle full commercial re-roofs, flat roof repairs and roof restorations as the general contractor, so you deal with one accountable person from inspection to close-out.
We also provide residential roof replacement, stucco & siding services, and tenant improvement and remodeling services.
Call or text (619) 840-4712 for a fast response
Or click below to request a quote.
Serious inquiries only. We prioritize property owners and managers ready to move forward.