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🏚️ Roofing

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📋 About Roofing Contractors & Services ▾

Roofing is one of the highest-stakes trades a homeowner engages — the roof is the primary moisture and thermal barrier for the entire structure, and a failure here cascades into [Water & Mold Remediation](https://contractorsplanet.com/?service=water-mold-remediation), [Insulation](https://contractorsplanet.com/?service=insulation) damage, and structural rot that touches [Framing](https://contractorsplanet.com/?service=framing) and [Drywall](https://contractorsplanet.com/?service=drywall). Licensing requirements are set at the state level — Florida, California, Texas, and most other states require a dedicated roofing contractor license separate from a general contractor's license, and the IRC (International Residential Code) along with local amendments govern everything from minimum drip-edge requirements to ice-and-water-shield zones. The six sub-services below organize Roofing by project type: new construction installation, full tear-off replacement, targeted repair, ongoing maintenance, specialty material systems, and low-slope commercial work.

Q: Can I repair or replace my own roof without a contractor license?
In most US states, homeowners can legally perform roofing work on their own primary residence without a contractor license, but pulling a permit as owner-builder still requires passing inspections to the same code standard a licensed contractor would meet. The practical risks are significant: manufacturer warranties on architectural shingles like GAF Timberline HDZ or Owens Corning Duration require installation by a certified applicator, so DIY installation voids material coverage. At heights above 6 feet, OSHA fall-protection principles apply even outside their commercial jurisdiction. Steep roofs (8:12 pitch and above), tile, slate, and metal panel systems are not appropriate DIY projects. For a $150–$500 repair, the liability and warranty exposure rarely justify the savings.
Q: What do roofing contractors charge per hour, and how is pricing structured?
Most residential roofing is priced per square (100 square feet of roof surface), not hourly. Labor runs $150–$300 per square for asphalt shingles; total installed cost including materials is $350–$700 per square for standard architectural shingles in most markets. When roofers do bill hourly — typically for small repairs or diagnostic work — rates run $75–$150 per hour per worker. Emergency or after-hours calls add a 25–50% premium. Regional variance is significant: the same architectural shingle job runs about 20% less in rural Midwest markets and 30–40% more in coastal California or New York City. Always get pricing in per-square terms so proposals are directly comparable.
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Roof Installation
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Roof Replacement
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Roof Repair
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Roof Maintenance
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Specialty Roofing Services
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Commercial Roofing
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Roofing Hiring Guide

📖 Overview

[Roof Installation](https://contractorsplanet.com/?service=roofing&subcat=roof-installation) covers new roofs going on structures that have never had a finished roofing system — new home construction, additions, garages, and [Carport](https://contractorsplanet.com/?service=carport) structures. Roof Installation on a new build involves sheathing inspection, underlayment selection (synthetic felt or peel-and-stick ice-and-water membrane in IECC climate zones 5 and above), flashing integration at walls and penetrations, and full shingle or panel installation. Asphalt architectural shingles dominate new residential work at $4.50–$8.00 per square foot installed; standing-seam metal runs $14–$22 per square foot. On a 2,000-square-foot footprint with a 6:12 pitch, total installed costs range from $9,000 to $45,000 depending on material and market.

[Roof Replacement](https://contractorsplanet.com/?service=roofing&subcat=roof-replacement) is the most common large roofing project — a full tear-off of the existing system down to the decking, deck inspection and repair, and installation of a new complete system. Most asphalt shingle roofs are replaced at 20–30 years, when granule loss, curling, or repeated leaks signal that repair is no longer cost-effective. IRC Section R905 governs maximum allowable layers — most jurisdictions prohibit more than two layers of shingles before requiring a full tear-off. Tear-off and haul-away typically adds $1.00–$2.00 per square foot to the project cost. A full replacement on a 1,500-square-foot ranch home runs $8,500–$18,000 for architectural asphalt; premium materials like Class 4 impact-resistant shingles (relevant in hail-prone states for insurance premium discounts) or metal push the ceiling to $35,000+. Coordinate with your [Home Inspector](https://contractorsplanet.com/?service=home-inspector) or [Insurance](https://contractorsplanet.com/?service=insurance) adjuster before signing a replacement contract after storm damage.

[Roof Repair](https://contractorsplanet.com/?service=roofing&subcat=roof-repair) addresses localized failures — missing or damaged shingles, flashing separations at chimneys and skylights, pipe boot failures, valley deterioration, and small punctures or wind-lifted sections. Most repair calls originate from a visible interior leak, and the hardest part of roof repair is accurate leak diagnosis: water travels along rafters and sheathing before dripping, so the stain inside is rarely directly below the entry point. Repair costs run $150–$1,500 for most residential calls; flashing replacement at a chimney runs $300–$900; full valley replacement runs $500–$1,500. If your home has a [Skylight](https://contractorsplanet.com/?service=skylight) or [Fireplace & Chimney](https://contractorsplanet.com/?service=fireplace-chimney), those penetration flashings are statistically the most common leak sources and should be the first diagnostic focus.

[Roof Maintenance](https://contractorsplanet.com/?service=roofing&subcat=roof-maintenance) encompasses the scheduled, preventive work that extends a roof's service life — moss and algae treatment, debris clearing from valleys and [Gutters](https://contractorsplanet.com/?service=gutters), pipe boot and flashing inspections, resealing of exposed fasteners on metal panels, and attic ventilation checks. Algae (Gloeocapsa magma) causes the black streaking common on asphalt shingles in humid climates; zinc or copper strips at the ridge suppress regrowth after treatment. Annual maintenance contracts typically run $200–$600 per visit; moss treatment with biocide application runs $300–$800 depending on roof size and infestation level. [Power Washing](https://contractorsplanet.com/?service=power-washing) is inappropriate for asphalt shingles — it strips granules and voids warranties; soft-wash low-pressure chemical treatment is the correct method.

[Specialty Roofing Services](https://contractorsplanet.com/?service=roofing&subcat=specialty-roofing-services) covers material systems outside standard asphalt shingles: slate, clay and concrete tile, wood shake, synthetic polymer shingles, EPDM and TPO on low-slope residential sections, [Solar Panels](https://contractorsplanet.com/?service=solar-panels) integration, and green or living roof assemblies. Slate roofing — genuine Welsh or Vermont quarried slate — lasts 75–150 years but costs $25–$50 per square foot installed and requires experienced applicators; many roofers are not qualified to work slate. Clay tile is dominant in the Southwest and Florida and runs $15–$30 per square foot installed. Cedar shake has fire-resistance implications (Class C untreated vs. Class A pressure-impregnated) that affect local permitting. Solar-integrated roofing requires coordination between the roofing contractor and the [Solar Panels](https://contractorsplanet.com/?service=solar-panels) installer to maintain waterproofing integrity and manufacturer warranty compliance.

[Commercial Roofing](https://contractorsplanet.com/?service=commercial-roofing) addresses flat and low-slope (under 2:12 pitch) roofing systems on commercial, industrial, and multi-family buildings — systems that are fundamentally different from residential steep-slope work. The dominant systems are TPO (thermoplastic polyolefin), EPDM (ethylene propylene diene monomer), PVC membrane, modified bitumen, and built-up roofing (BUR). TPO and EPDM are typically mechanically fastened or fully adhered; seams are heat-welded (TPO/PVC) or cold-applied (EPDM). OSHA 29 CFR 1926 Subpart R governs fall protection on low-slope commercial roofs, requiring guardrails, safety nets, or personal fall arrest systems when working within 6 feet of an unprotected edge. Commercial roofing costs run $6–$18 per square foot installed depending on system, insulation R-value (ASHRAE 90.1 sets minimum roof insulation requirements by climate zone), and building size. Large commercial projects may also intersect with [General Contractor](https://contractorsplanet.com/?service=general-contractor) and [Remodeling](https://contractorsplanet.com/?service=remodeling) scopes.

Picking the right sub-service starts with answering two questions: Is the existing roof salvageable, and what is the roof's geometry? If more than 30% of the surface is damaged or the roof is past its rated life, Roof Replacement is almost always cheaper than repeated Roof Repair. If you have a flat or low-slope roof on a commercial structure, go directly to Commercial Roofing contractors — they hold different licenses and carry different equipment than residential steep-slope crews. For storm damage, document with photos before any emergency tarping, file your insurance claim first, and be extremely cautious of door-knocking contractors soliciting storm work — the most common roofing scam vector. In a genuine emergency (active leak during a storm), temporary tarping by a licensed contractor buys time without triggering a premature full-replacement decision.

✅ What it covers

  • Sheathing and deck inspection for rot, delamination, and fastener pull-through before any new system
  • Underlayment selection: synthetic felt, peel-and-stick ice-and-water shield, or hybrid systems by climate zone
  • Flashing installation and integration at eaves, rakes, valleys, walls, chimneys, skylights, and pipe boots
  • Shingle, tile, metal panel, or membrane installation per IRC R905 and manufacturer specifications
  • Tear-off and debris disposal for replacement projects, including load-out to licensed disposal
  • Ventilation system inspection and correction: soffit-to-ridge ratio per NFPA 285 and IRC R806
  • Gutter and downspout integration and splash-block or underground drainage handoff
  • Moss, algae, and debris treatment and preventive maintenance scheduling
  • Permit acquisition, required inspections, and final sign-off by local AHJ (Authority Having Jurisdiction)
  • Warranty registration: manufacturer material warranty plus contractor workmanship warranty

💵 Typical cost range

$150 to $75,000

Roof repair is the floor — a single missing shingle or pipe boot replacement runs $150–$500. A mid-size residential replacement (1,500–2,000 sq ft footprint, 6:12 pitch, architectural asphalt) runs $9,000–$18,000 fully installed in most US markets; high-cost metros like San Francisco or NYC add 20–40%. Premium materials shift the ceiling sharply: standing-seam metal runs $18,000–$45,000 on that same footprint; genuine slate runs $35,000–$75,000. Commercial flat roofing on a 5,000 sq ft building runs $25,000–$60,000 depending on system and insulation. Annual maintenance contracts run $200–$600. Tear-off adds $1.00–$2.00 per square foot. Class 4 impact-resistant shingles cost 15–25% more than standard architectural but often yield insurance premium discounts of $200–$600/year in hail-prone states.

🛡️ Hiring tips

  • Verify your contractor's state roofing license — not just a general contractor license — at your state licensing board; in Florida, California, Texas, and most states these are separate credentials with separate testing requirements
  • Require proof of general liability (minimum $1M per occurrence) and workers' compensation insurance before any crew steps on your roof; an uninsured fall creates homeowner liability
  • Get at least three written, itemized proposals specifying the exact shingle brand and product line, underlayment type, drip-edge gauge, and warranty terms — vague proposals become disputes at invoice
  • Never pay more than 10–30% upfront; legitimate contractors do not require full payment before work begins, and large deposits are the single most common roofing fraud pattern
  • Confirm the contractor will pull the required permit and schedule the required inspections; skipping permits voids manufacturer warranties and creates problems at home sale
  • Ask specifically who will perform the work — many large roofing companies subcontract to day-labor crews; confirm the on-site crew is the same company's employees or approved subs covered under the same insurance
  • For storm-damage insurance claims, get an independent adjuster's scope before signing any contractor's assignment-of-benefits agreement; AOB transfers your claim rights to the contractor and removes your negotiating leverage
  • Check the manufacturer's contractor-certification level — GAF Master Elite, CertainTeed SELECT ShingleMaster, and Owens Corning Preferred Contractor tiers indicate verified installation training and unlock extended warranty options unavailable from uncertified installers

More frequently asked questions

How do I know whether to repair my roof or replace it entirely?
The industry rule of thumb is the 30% threshold: if more than 30% of the roof surface is damaged or deteriorated, replacement is almost always more cost-effective than repair. Age matters more than appearance — most 3-tab shingles are rated 20–25 years and most architectural shingles 30 years, but actual lifespan depends heavily on ventilation and climate. Granule loss in gutters, widespread curling or cupping, multiple layers of existing shingles (IRC limits most jurisdictions to two layers before mandatory tear-off), and repeated leaks in different locations all point toward replacement. A single isolated flashing failure or a few missing shingles on a 10-year-old roof is a strong repair candidate. Get a written inspection report, not just a verbal opinion.
What is the difference between TPO, EPDM, and modified bitumen for flat roofs?
TPO (thermoplastic polyolefin) is a white, heat-welded single-ply membrane popular for its reflectivity (ENERGY STAR rated at 0.65–0.85 solar reflectance) and weldable seams. EPDM (ethylene propylene diene monomer) is a black synthetic rubber membrane with cold-applied or tape seams; it's been dominant since the 1970s, is highly UV-resistant, and costs slightly less than TPO at $4.50–$8.00 per square foot installed. Modified bitumen is an asphalt-based system applied in multiple layers — torch-applied, cold-applied, or self-adhering — offering excellent puncture resistance for roofs with foot traffic. TPO and PVC are preferred where energy codes require high reflectivity; EPDM is often preferred in colder climates for its flexibility at low temperatures; modified bitumen suits rooftop HVAC equipment traffic well.
Do I need a permit for a roof replacement, and does insurance cover the cost?
Nearly all jurisdictions require a building permit for a full roof replacement — the permit triggers an inspection that verifies underlayment, flashing, and ventilation compliance with the IRC and local amendments. Skipping the permit voids manufacturer warranties, creates disclosure obligations at home sale, and can void your homeowner's insurance coverage for roofing-related losses. On the insurance side, most homeowner policies cover replacement cost value (RCV) for storm damage if your policy includes RCV rather than actual cash value (ACV); ACV policies deduct depreciation and can leave a 30–50% gap on an older roof. Insurance typically does not cover replacement due to age, wear, or neglect — only sudden storm or hail events. Always review your declarations page before storm season.
How can I tell if my roof has a problem before it starts leaking inside?
Several exterior indicators precede interior leaks by months: granules accumulating in gutters or at downspout outlets signal shingle end-of-life; lifted, curling, or cupped shingles are visible from ground level with binoculars; dark staining around pipe boots, chimney flashings, or skylight curbs indicates failed sealant or flashing; sagging sections signal decking rot or rafter failure beneath. In the attic, daylight visible through the roof deck, staining on rafters or sheathing, and compressed or damp insulation all indicate moisture intrusion that hasn't yet reached finished ceilings. A professional inspection — typically $150–$400 — performed after any hail event larger than 1 inch in diameter or winds over 60 mph is the most reliable early-detection tool.
What are the most common roofing scams and red flags to avoid?
Storm chasers are the most pervasive risk: after any hail or wind event, out-of-state contractors canvass neighborhoods soliciting work, often asking homeowners to sign assignment-of-benefits agreements that transfer insurance claim rights to the contractor. Once signed, the homeowner loses control of scope, materials, and settlement amount. Other red flags: demanding full payment upfront (legitimate contractors require 10–30% at most), offering to waive your insurance deductible (insurance fraud in most states), providing estimates without visiting the roof, using a PO box or no local address, and carrying only a general handyman license rather than a state roofing license. Always verify license status at your state licensing board and check reviews on multiple platforms before signing anything.
My roof is actively leaking during a storm — what should I do right now?
Move valuables and place buckets to limit interior damage, then document the leak location and any ceiling or wall staining with timestamped photos — this documentation is essential for insurance claims. Do not attempt to access a wet, pitched roof during active rain or wind; fall risk is extreme. Call a licensed roofing contractor for emergency tarping, which typically runs $300–$800 and protects the structure until a full assessment can be done in safe conditions. Notify your homeowner's insurance carrier within 24–48 hours; most policies require prompt notification and coverage for emergency mitigation costs. Tarping does not commit you to that contractor for the full replacement — get competing bids once the emergency is stabilized. If interior water is near electrical panels or fixtures, contact an [Electrical](https://contractorsplanet.com/?service=electrical) professional before restoring power to affected circuits.

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