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☀️ Skylight

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📋 About Skylight Services & Installation ▾

Skylights sit at the intersection of roofing, glazing, and building science — a deceptively specialized trade where a wrong flashing detail or an undersized curb can turn a light-filled room into a recurring leak. The nine sub-services below organize Skylight work by project stage: new installation, unit replacement, active repairs, routine maintenance, technology upgrades, emergency response, commercial-scale systems, structural add-ons, and professional inspections. Each discipline draws on a distinct skill set and cost structure, and matching your need to the right sub-service is the fastest path to a contractor who won't be learning on your roof. Relevant standards include ASTM E331 for water penetration testing, IRC Section R308 for glazing safety requirements in occupied spaces, and ENERGY STAR certification thresholds that determine rebate eligibility in many states.

Q: Can I install a skylight myself, or does this work require a licensed contractor?
Cutting a roof opening, installing headers to carry the severed rafter load, and integrating flashing into an existing roof system are tasks covered by roofing and general contractor licensing requirements in most US states. A DIY cut that misses a rafter or leaves flashing gaps creates structural risk and a leak path that can cause mold within days of the first rain. Beyond licensing, most jurisdictions require a permit for any new roof penetration — permits require a licensed contractor or homeowner-builder designation. If you are a skilled DIYer, the safest scope to self-perform is a same-size replacement on an existing intact curb using a pre-flashed unit like Velux's FS deck-mount; structural new installations should be left to licensed pros.
Q: What does a skylight contractor typically charge per hour, and how are projects usually priced?
Skylight contractors rarely bill hourly for installation or replacement — most quote fixed project prices because material specification and site conditions drive cost more than time. When hourly rates do appear (for diagnostics, maintenance, or small repairs), expect $75–$150 per hour for a journeyman glazing or roofing specialist, and $100–$200 for a lead installer in high-cost markets. Fixed quotes for residential replacement run $600–$3,500 per unit; installation in a new opening runs $800–$4,500 per unit. Emergency after-hours calls carry a dispatch fee of $200–$500 on top of repair labor. Always ask whether the quote includes the unit, flashing kit, interior finishing, and permit fee — these are frequently unbundled.
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Skylight Installation
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Skylight Replacement
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Skylight Repair
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Skylight Maintenance
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Skylight Upgrades
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Emergency Skylight Services
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Commercial Skylight Services
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Roof & Structure-Related Skylight Add-On Services
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Inspection & Consultation Services
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Skylight Hiring Guide

📖 Overview

[Skylight Installation](https://contractorsplanet.com/?service=skylight&subcat=skylight-installation-1) covers new skylight placement in a roof that has no existing opening — the most structurally complex scope in the category. The contractor must cut the roof deck, install a properly sized curb (minimum 4 inches above the finished roof surface per IRC), frame a light shaft through the attic if the ceiling is not immediately below the deck, and integrate flashing to the existing roofing material. Velux and FAKRO dominate the residential unit market; Velux's FCM fixed curb-mount and FS deck-mount lines are the most common starting points. Unit sizes range from 14×46 inches to 52×52 inches for residential applications. Costs run $800–$4,500 per skylight installed, depending on roof pitch, shaft length, and glazing selection.

[Skylight Replacement](https://contractorsplanet.com/?service=skylight&subcat=skylight-replacement) is the highest-volume sub-service — most residential skylights have a 15–25-year service life, and homeowners replacing a failed or outdated unit are the bread-and-butter customer for skylight specialists. Replacement uses the existing curb when it is structurally sound, reducing labor versus a full new installation. The critical decision is in-kind replacement versus upsizing: an existing 22×46-inch opening can often accept a 24×48-inch unit with minor curb modification, adding meaningful daylight. Replacing acrylic bubble units with low-e insulated glass (IGU) with a U-factor of 0.50 or lower qualifies for the 25C federal energy-efficiency tax credit (up to $600 per unit as of current IRS guidance). Costs run $600–$3,500 per unit replaced.

[Skylight Repair](https://contractorsplanet.com/?service=skylight&subcat=skylight-repair) addresses leaks, broken glazing, failed seals, and condensation between panes. The most common repair call is a leak — and the source is almost never the glass itself. Step flashing that has lifted, counter flashing that has separated from the curb, or a cracked self-adhesive underlayment beneath a deck-mount unit accounts for the majority of active leaks. Seal failure in an IGU shows as permanent fogging between the panes — a condition that cannot be reversed without replacing the glazing unit. Glazing replacement on an existing frame runs $200–$600; reflashing a curb-mount unit runs $300–$900; full structural repair on a rotted curb and deteriorated decking runs $800–$2,500. [Roofing](https://contractorsplanet.com/?service=roofing) contractors who specialize in leak diagnosis are often the right first call when the source is unclear.

[Skylight Maintenance](https://contractorsplanet.com/?service=skylight&subcat=skylight-maintenance) keeps functioning skylights operating at rated performance and prevents the minor issues that escalate into major repairs. Annual maintenance typically includes clearing debris from the curb perimeter, inspecting and reapplying silicone sealant at the glass-to-frame joint, checking the operation and weather-strip condition of venting units, lubricating hinges on manual-crank models, and testing the rain sensor and electric motor on automated venting skylights. Velux's solar-powered venting units (VS and CVP series) use a TKB battery pack that degrades over 5–8 years and can be replaced for $60–$120 without professional help. Full professional maintenance visits run $150–$450 depending on unit count and roof access difficulty.

[Skylight Upgrades](https://contractorsplanet.com/?service=skylight&subcat=skylight-upgrades) covers retrofitting existing skylights with new capabilities — the fastest-growing segment as smart-home integration and energy performance expectations rise. Common upgrades include adding motorized venting to a fixed unit (requires structural modification of the existing curb), installing integral solar-powered blinds (Velux's INTEGRA line accepts factory-matched blackout and light-filtering blind cassettes), and converting single-pane acrylic to laminated low-e glass. Solar-powered blinds run $350–$700 per unit installed; motorized venting conversion is typically only cost-effective when replacing the unit simultaneously. Tubular daylighting devices (TDDs) — sun tunnels from Velux or Solatube — are sometimes classified as upgrades when added to a home that already has conventional skylights, extending natural light into interior rooms. Costs for upgrades run $300–$2,500 per skylight.

[Emergency Skylight Services](https://contractorsplanet.com/?service=skylight&subcat=emergency-skylight-services) responds to sudden failures: storm-shattered glazing, wind-lifted units, tree impact damage, or sudden catastrophic leaks during active rain. Emergency response almost always begins with a temporary weatherproofing measure — a poly tarp secured with roofing screws and OSB, or a pre-cut polycarbonate panel caulked in place — before permanent repair can be scheduled. After-hours emergency response carries a premium: expect $200–$500 just for the dispatch and temporary board-up, with permanent repair billed separately. [Water & Mold Remediation](https://contractorsplanet.com/?service=water-mold-remediation) should be contacted immediately if water intrusion has reached interior finishes, insulation, or the light shaft framing — mold colonization in a skylight shaft can begin within 48–72 hours of wetting.

[Commercial Skylight Services](https://contractorsplanet.com/?service=skylight&subcat=commercial-skylight-services) covers glazed roof systems at a scale and complexity far beyond residential work: barrel-vault skylights, ridge-and-hip systems, smoke-vent skylights (required by IBC for certain occupancy types), and structural glass assemblies rated for fall-through resistance under OSHA 29 CFR 1910.23. Commercial units frequently use wire glass, laminated safety glass, or polycarbonate multiwall panels rated to ASTM E84 flame-spread requirements. Engineering involvement is standard — most jurisdictions require stamped drawings for commercial skylight penetrations over a threshold area. Manufacturers like Naturalite, Major Industries, and Kingspan supply commercial-grade systems that residential glazing contractors do not typically install. Project costs run $5,000–$150,000+ depending on system area and structural scope. Coordination with a [General Contractor](https://contractorsplanet.com/?service=general-contractor) or [Architect](https://contractorsplanet.com/?service=architect) is the norm on commercial projects.

[Roof & Structure-Related Skylight Add-On Services](https://contractorsplanet.com/?service=skylight&subcat=roof-structure-related-skylight-add-on-services) handles the surrounding work that a skylight project often triggers but that falls outside the glazing contractor's core scope: repairing or replacing the roof membrane around the new opening, reinforcing rafters that must be cut to create the rough opening (a double header and trimmer configuration per IRC R802), building or finishing the light shaft with [drywall](https://contractorsplanet.com/?service=drywall), and painting the shaft interior white or near-white to maximize light reflectance. Rafter reinforcement is mandatory whenever a structural member is cut — this is not optional and should appear on any permit drawings. Full add-on scopes that include roofing, framing, and interior finishing can add $1,500–$6,000 to a skylight project budget. Coordination with [Framing](https://contractorsplanet.com/?service=framing) and [Roofing](https://contractorsplanet.com/?service=roofing) trades is common.

[Inspection & Consultation Services](https://contractorsplanet.com/?service=skylight&subcat=inspection-consultation-services) provides professional assessment without a commitment to a specific scope of work — valuable before buying a home with existing skylights, before deciding between repair and replacement, or before a [Home Inspector](https://contractorsplanet.com/?service=home-inspector) has flagged skylight condition as unknown. A qualified skylight inspection covers glazing integrity, frame and curb condition, flashing attachment and seal quality, interior shaft condition, and operation of any venting hardware. Written reports with photographs are standard and typically run $150–$350. Infrared thermography — used to detect moisture in the shaft framing and insulation without destructive opening — adds $100–$250 to an inspection scope and can definitively locate water intrusion pathways that visual inspection misses.

Choosing the right sub-service before you call saves time and money. If you have no existing opening, start with Installation. If you have an aging or failed unit on an intact curb, Replacement is almost always more cost-effective than repair. Active leaks belong under Repair, but request a written diagnosis before authorizing work — the leak source is frequently the flashing, not the unit. Maintenance is best scheduled in spring after winter freeze-thaw cycles and again in fall before the wet season. For emergency glazing failures during a storm, call Emergency Skylight Services first to weatherproof the opening, then follow up with Repair or Replacement once conditions allow safe roof access.

✅ What it covers

  • Roof deck cutting and curb framing for new skylight openings per IRC R802
  • Flashing integration — step flashing, counter flashing, and self-adhesive underlayment at the curb perimeter
  • Glazing selection: fixed, manual venting, or solar/electric motorized units with low-e IGU or laminated safety glass
  • Light shaft framing, insulation, and drywall finishing between roof deck and ceiling plane
  • Rafter header and trimmer installation when structural members are cut
  • Seal inspection and reapplication at glass-to-frame and curb-to-roof joints
  • Motorized blind and rain-sensor installation for smart venting systems
  • Commercial smoke-vent and fall-through-rated glazing systems under IBC and OSHA 29 CFR 1910.23
  • Emergency temporary weatherproofing with poly, OSB, or polycarbonate panels
  • Infrared thermography and written condition reports for inspection scopes

💵 Typical cost range

$150 to $150,000

Residential skylight installation runs $800–$4,500 per unit including labor and a mid-range Velux or FAKRO unit; premium triple-pane or large-format units push toward $6,000. Replacement using an existing curb runs $600–$3,500. Active leak repairs range from $200 for a simple reseal to $2,500 for curb rot and decking replacement. Annual maintenance visits run $150–$450. Upgrade scopes (motorized blinds, smart venting) add $300–$2,500 per unit. Emergency dispatch carries a $200–$500 after-hours premium before permanent work begins. Commercial systems start at $5,000 for small smoke-vent units and exceed $150,000 for large barrel-vault or structural glass assemblies. High-cost markets (San Francisco, New York, Seattle) carry 20–35% labor premiums. Permit fees add $100–$500 depending on jurisdiction.

🛡️ Hiring tips

  • Verify the contractor carries roofing or general contractor licensing for your state — skylight work involves structural cuts and weatherproofing that most jurisdictions classify as licensed roofing work, not general handyman activity
  • Ask specifically whether the installer is factory-authorized by Velux or FAKRO — authorized installers have completed product training and in many cases carry extended warranty eligibility that standard installers cannot offer
  • Require a written scope that identifies the exact unit model, rough-opening dimensions, glazing specification (U-factor, SHGC, impact rating), and flashing system before signing anything
  • Get the permit pulled before work starts — unpermitted skylight cuts that sever structural rafters without a header are a red flag on resale home inspections and can void homeowner insurance claims
  • Request references from at least two completed skylight projects with similar roof types (low-slope, tile, metal) to your own — flashing technique varies significantly by roofing material
  • For any replacement project, ask the contractor to inspect the existing curb and decking before quoting — contractors who quote sight-unseen without accounting for rot or deterioration often add surprise charges mid-project
  • Confirm whether interior work (shaft drywall, painting, electrical for venting units) is included in the quote or subcontracted separately, as gaps in scope are a common source of cost overruns
  • Never pay more than 30–40% upfront on a skylight project; materials can be ordered on a smaller deposit, and final payment should be withheld until the unit passes a 24-hour water test or the first rain event

More frequently asked questions

How do I decide whether to repair my leaking skylight or replace it entirely?
The decision hinges on the age of the unit, the source of the leak, and the condition of the frame and curb. If the unit is under 15 years old, the glazing is intact, and the leak traces to failed flashing or a cracked sealant joint, repair is almost always the right call — reflashing a curb-mount unit runs $300–$900 versus $1,500–$3,500 for a full replacement. If the unit is over 20 years old, shows fogging between the panes (failed IGU seal), has a cracked acrylic dome, or has a curb with visible rot or delamination, replacement pays for itself in avoided repeat repairs within 2–3 years. A professional inspection with written documentation — not a contractor who shows up and immediately recommends replacement — is worth $150–$350 before you commit.
What is the difference between a curb-mount and a deck-mount skylight, and which is better?
A curb-mount skylight sits on a raised wooden frame (the curb) that the contractor builds on the roof deck — the unit clips or screws to the top of that curb. Curb-mount units are easier to replace because the curb stays in place; they also work on low-slope roofs (down to 2:12 pitch). A deck-mount skylight (Velux's FS series is the most common) installs directly into the roof deck with an integrated self-adhesive flashing kit, requiring no built curb — they have a lower profile, shed debris better, and are faster to install. Deck-mount units require a minimum 14:12 pitch and cannot be used on low-slope roofs. For steep residential gable roofs, deck-mount is generally preferred for aesthetics and leak resistance; for shallow pitches or flat roofs, curb-mount is the correct choice.
Does a skylight installation require a building permit, and does it affect my homeowner's insurance?
In the vast majority of US jurisdictions, yes — any new roof penetration that involves cutting structural members requires a building permit, and most replacement projects also trigger permit requirements unless the unit is an exact same-size same-location swap. Permit fees range from $100 to $500 depending on municipality. Unpermitted skylight work is a liability: it appears on resale inspections, can void insurance coverage for water damage claims traced to the skylight, and may require costly removal and re-permitting at sale. On the insurance side, a new ENERGY STAR-rated skylight generally does not raise premiums, but a failed skylight that causes interior water damage may be covered under your dwelling coverage — check whether your policy covers sudden and accidental damage versus slow leaks.
What are the warning signs that my skylight is failing before it starts leaking actively?
The earliest indicators are subtle. Condensation between the panes of a double- or triple-pane unit — a permanent fogging that does not clear with temperature changes — means the IGU seal has failed and the unit's insulating value has dropped significantly, even before active leaking begins. Interior condensation on the glass surface in winter points to insufficient insulation in the light shaft or a frame with a thermal break failure. Discoloration or soft spots in the drywall at the base of the light shaft, paint bubbling on the shaft ceiling, or a musty odor when the HVAC runs through ceiling returns near the skylight all suggest moisture intrusion that may predate visible dripping by months. Annual maintenance inspections catch these early.
What are the most common red flags or scams to watch for when hiring a skylight contractor?
The most widespread scam follows storm events: storm-chasing crews knock on doors, offer a free inspection, and diagnose a skylight as failed when it is not — often after physically damaging the flashing during the "inspection." Protect yourself by never authorizing work the same day as an unsolicited visit. A second red flag is the unlicensed roofer who installs skylights as an add-on service without factory training or proper flashing kits — the work looks fine on day one and leaks within one wet season. Third, watch for quotes that exclude the flashing kit, interior shaft work, and permit fee, which can add $500–$2,000 to a low-ball number. Always verify the contractor's license at your state licensing board and check reviews from projects completed more than one full wet season ago.
What should I do if my skylight shatters or blows open during a storm?
Get people and electronics out of the affected room immediately — shattered tempered glass falls in pebble-size pieces, while broken laminated glass hangs in the frame but can collapse under additional wind load. Do not attempt roof access during active wind or rain. Once conditions allow, a temporary cover can be installed: a heavy-gauge poly tarp weighted with sandbags or screwed through a layer of OSB around the curb perimeter is the standard emergency measure and costs $200–$500 through an emergency skylight or roofing service. Call your homeowner's insurance carrier before any permanent repair — storm damage to glazing is typically a covered peril, and having a claims adjuster document the damage before repair protects your reimbursement. If water has already reached interior finishes, contact [Water & Mold Remediation](https://contractorsplanet.com/?service=water-mold-remediation) within 24 hours.

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