ServiceCommercial / Low-SlopeEst.1975

Commercial roofing systems, installed flat-rate.

Seven systems. Flat-rate bids. 48-hour turnaround. Stanislaus County since 1975.

Sq Ft Max
50,000
Bid Turn
48 HR
Systems
7
Warranty
NDL

Six differentiators — what you get on every commercial bid

01NDL Warranty15–25 yr no-dollar-limit
02Same Crew DailyNo rotating subs
03Free IR Moisture ScanPre-bid infrared survey
04Flat-Rate BidWritten scope, no change orders
0548-Hour QuoteBid turnaround from walkthrough
06Insurance LiaisonState Farm, Travelers, Zurich, Mercury

Commercial · Stanislaus County

Commercial roofing services in Stanislaus County

Since
1975
Mfr. Certs
4
Crew
In-House
Pricing
Flat-Rate

DeHart Roofing handles commercial projects from single-unit retail buildings to large multi-family complexes across the Modesto–Turlock corridor. That means warehouses in Ceres, retail in Modesto, and HOA upkeep in Salida. The work covers full commercial roof replacement, retrofit, and tie-ins to commercial roof repair on active-leak buildings.

Under new local ownership since 2026, every project runs on flat-rate pricing, a written scope of work, and strict accountability standards. One crew, one foreman, one bid — no rotating subs, no change orders.

7 Systems · Side-By-Side

Commercial roofing systems we install

We install every major commercial roof system on the U.S. market. The right choice depends on four things: holding period, building type, budget, and Title 24 compliance. TPO is our most-recommended pick for Stanislaus County buildings.

Single-ply membranes: TPO, EPDM, PVC

Single-ply means one layer of roofing membrane, either heat-welded or adhered (glued down). TPO, EPDM (a synthetic rubber), and PVC (a vinyl membrane) are the dominant commercial roof category for Stanislaus County warehouses and HOAs. All three are Title 24 ready and last 15–30 years.

Built-up & modified bitumen systems: BUR, Mod Bit

These are asphalt-and-felt legacy systems. We install Mod Bit on smaller flat roofs. We use BUR (built-up roofing) for repair retrofits, not new installs.

Metal & sprayed-in-place: Standing Seam, SPF

Long-life standing seam metal suits agricultural and industrial buildings. SPF (spray polyurethane foam) suits irregular shapes and retrofit insulation.

Commercial Systems · Spec Comparison · 2026
SystemCost / Sq FtLifespanFire RatingTitle 24Best For
EPDM$5.50–$920–30 yrClass AMulti-family, traditional flat
PVC$7–$1220–30 yrClass ARestaurants, labs, chem-resistant
BUR$5–$815–25 yrClass ALegacy flat, repair retrofit
Mod Bit$5–$815–25 yrClass ASmaller flat roofs
Standing Seam$9–$1840–60 yrClass ALong-life, agricultural, modern industrial
SPF$4–$820–30 yrClass AIrregular shapes, retrofit insulation

Compliant  ·  Optional / add-on insulation  ·  Not Title 24

Don’t see your system? We also install single-ply hybrids and custom assemblies — call Clayton at (209) 667-7737.

6 Installs · Stanislaus County

More commercial roof installs in Stanislaus County on the DeHart projects gallery →

Choose your building type

Tap a building type. Your bid request is pre-tagged so Clayton routes the right scope.

Our commercial roofing process

Every commercial job runs the same five-step process. No surprises, no scope creep.

01Initial AssessmentClayton or a project lead walks the roof, measures the system, documents condition, and flags any deck issues to address before install.
02Written BidFlat-rate written estimate with itemized scope, system spec, and timeline — within 48 hours. No verbal estimates, no surprise change orders.
03Schedule & PermitsWe pull all required permits and coordinate around your operation. For occupied buildings, we set noise hours, parking plans, and tenant comms.
04InstallationOur own crews, held to strict install standards — not day-labor subs. A supervisor is on-site daily. We do not leave a job half-done.
05Punch & CloseoutJoint walkthrough, fix any items that miss spec, then deliver warranty documentation and permit sign-off before we call the job complete.

Per Sq Ft · 2026 Pricing

Pricing transparency

Commercial roofing costs vary by size, system, and site conditions. Here's what you should expect in Stanislaus County:

2026 Installed Ranges · Stanislaus County
SystemInstalled RangeWhat’s Included
TPO Membrane$6.50–$10 / sq ftTearoff, install, standard warranty registration
EPDM Membrane$5.50–$9 / sq ftTearoff, install, manufacturer warranty
PVC Membrane$7–$12 / sq ftPremium membrane: chemical resistance + heat-weld seams + Title 24 compliant
BUR (Built-Up Roofing)$5–$8 / sq ftLegacy 5-ply asphalt + felt — repair retrofit only
Modified Bitumen$5–$8 / sq ftTorch or self-adhered system, install
Standing Seam Metal$9–$18 / sq ftPanel spec dependent, fasteners, trim
SPF (Spray Polyurethane Foam)$4–$8 / sq ftSeamless polyurethane foam — irregular roofs and retrofit insulation
Roof coating retrofit: $1.50–$4 / sq ft over existing sound membrane — restoration only, not a replacement.

These are ranges, not quotes. Site conditions and drain layout drive actual price. Free site assessment in 48 hours.

CA Title 24 · Climate Zone 12

Title 24 cool-roof compliance for Stanislaus County

Stanislaus County sits in California Climate Zone 12. Title 24 Part 6 requires low-slope commercial roofs to meet a minimum aged Solar Reflectance Index (SRI) — a measure of how well the roof reflects heat. The roof must also carry CRRC-listed product documentation. Here's what each system clears:

Title 24 Part 6 · Aged SRI Targets · Climate Zone 12
SystemAged SRICRRC ListedNotes
White TPO0.64+YesDefault compliant pick
White PVC0.70+YesHighest reflectance
Standing Seam Metal0.55+YesCool-coat finish required
SPF + cool-coat0.60+YesTopcoat sold separately

Dark EPDM and BUR require add-on insulation or a cool-coat to clear Climate Zone 12. We document compliance in the bid.

Storm & Insurance

Commercial storm damage & insurance claims

When hail or high wind hits a low-slope commercial roof, two clocks start at once: water intrusion and your insurance filing window. DeHart documents the damage adjuster-ready — dated photos, measurements, and a clear repair-or-replacement scope — so property managers and owners can file a clean claim and keep tenants dry. We meet your insurer's adjuster on-site, scope the work to the policy, and tarp emergencies the same day.

More detail: commercial storm damage & insurance support and our step-by-step California roof insurance claim guide.

2-Layer Coverage

Warranty coverage

Every DeHart commercial job includes two warranty layers:

Manufacturer · 15–25 yr NDL

✓ Covered

  • Membrane failure
  • Seam separation
  • Leaks from material defect

✗ Not Covered

  • Hail larger than 2"
  • Structural deck failure
  • Acts of God
Workmanship · Lifetime of System

✓ Covered

  • Install defects
  • Flashing leaks
  • Fastening issues

✗ Not Covered

  • Weather damage
  • Owner modifications
  • Third-party penetrations

Both warranties register at job closeout. We file the manufacturer paperwork on your behalf.

FAQ · 6 Questions

Commercial roofing questions, answered

The six things property managers and building owners ask most before signing a commercial roof bid.

Most commercial roof projects run $5–$12 per square foot installed. TPO sits at $6.50–$10. PVC and standing seam metal go higher. Site conditions and drain count drive the final number.
A typical 10,000–20,000 sq ft TPO install runs 5–10 working days. Tear-off, decking repair, weather, and night-work all shift the schedule. We publish a written timeline in every bid.
Yes. We schedule around tenant operations and can run weekend and off-hour crews. For occupied buildings we set noise hours, parking plans, and tenant comms before day one.
Twice a year — spring and fall — plus after any storm with hail or 60+ mph wind. Annual minimum for warranty compliance on most TPO and EPDM systems. We offer scheduled maintenance plans.
Both. Small leak repair, seam re-welding, and flashing fixes are flat-rate. For active leaks we dispatch same-day through emergency roof repair. Full tear-off and re-roof is the work this page covers.
Every TPO, PVC, SPF, and standing seam metal system we install meets California Title 24 Part 6 cool-roof requirements for Climate Zone 12. We file CRRC documentation at closeout.

Got your answer? Request flat-rate bid →  or  call (209) 667-7737

Why choose DeHart for your commercial project

Most commercial buildings in Stanislaus County run on three systems. Warehouses around Modesto use TPO. Older Turlock HOAs use ballasted EPDM — where loose stone weighs the membrane down. Smaller flat roofs in Ceres and Salida use mod bit. Clayton bids the right system for the building, not a one-size pitch. Five reasons commercial property managers route projects to DeHart:

1975

Stanislaus heritage. Roofing business buildings in this county since 1975.

2026

new local ownership. Rigorous accountability standards on every commercial project.

Budget Tier

Budget-tier option for HOAs and property managers on fixed budgets.

1:1

Clayton handles commercial sales directly. No rotating reps, no call center.

4 Insurers

Insurance liaison with State Farm, Travelers, Zurich, and Mercury.

Bid Request · 2 Fields · 48-Hour Reply

53 Google reviews

Request a flat-rate commercial bid

Free IR moisture scan. Written scope. 48-hour turnaround.

Or call Clayton directly at (209) 667-7737 · Same crew since 1975

Stanislaus County

Service area

7 Cities 1 County 50K Sq Ft Max

Project outside this corridor? Call (209) 667-7737 and ask for Clayton — we evaluate each project on its merits.

Step 1 of 3

Ready to start your commercial project?

Free IR moisture scan · Written scope · 48-hour turnaround

We stand by our work. If something we handled fails, we make it right.