How Much Does Skylight Installation Cost in 2026?
The average skylight installation costs $1,500 to $4,500 in New Jersey, including materials, labor, and flashing. The national average is about $1,800. NJ homeowners typically pay 15-25% more than the national average due to higher labor rates and stricter building codes. Here is a quick breakdown by type:
- Fixed skylight: $1,000-$2,300 installed
- Venting (operable) skylight: $1,400-$3,200 installed
- Tubular skylight (sun tunnel): $700-$1,600 installed
- Electric venting skylight: $2,000-$4,500 installed
- Solar-powered venting skylight: $2,200-$5,000 installed
- Custom/oversized skylight: $3,500-$9,000+ installed
Most NJ homeowners pay between $1,800 and $3,500 for a standard residential skylight installed by a licensed roofing contractor. Add $1,000-$3,000 if a light shaft needs to be built through the attic.
In This Guide:
- Cost Overview (2026)
- Cost by Skylight Type
- Cost by Skylight Size
- Cost by Brand
- Cost by Glazing Material
- What Affects Cost
- Cost by NJ County
- Replacement vs. New
- Skylight vs. Window
- Energy & Tax Credits
- ROI & Home Value
- DIY vs. Professional
- Installation Process
- How Long It Takes
- Repair/Replacement Signs
- Mistakes to Avoid
- Choosing an Installer
- FAQ
Skylight Installation Cost Overview (2026)
The type of skylight you choose has the biggest impact on your final cost. Here is a complete breakdown of what NJ homeowners pay in 2026, including materials, labor, and standard flashing:
| Skylight Type | Material Cost | Labor Cost | Total Installed |
|---|---|---|---|
| Fixed skylight | $200-$800 | $800-$1,500 | $1,000-$2,300 |
| Venting (operable) | $400-$1,200 | $1,000-$2,000 | $1,400-$3,200 |
| Tubular (sun tunnel) | $200-$600 | $350-$1,000 | $700-$1,600 |
| Electric venting | $800-$2,000 | $1,200-$2,500 | $2,000-$4,500 |
| Solar-powered venting | $1,000-$2,500 | $1,200-$2,500 | $2,200-$5,000 |
| Custom/oversized | $1,500-$5,000+ | $2,000-$4,000+ | $3,500-$9,000+ |
Prices include materials, labor, and manufacturer flashing kit. Based on NJ market rates, updated April 2026. Does not include light shaft construction or structural reframing.
Skylight Installation Cost by Type
Not all skylights are created equal. The type you choose has the biggest impact on your final cost — and on how much light, ventilation, and energy efficiency you get.
Fixed Skylights: $1,000-$2,300 Installed
Fixed skylights are the most affordable and most popular option. They do not open — they just let light in. Because there are no moving parts, they are less likely to leak and require virtually no maintenance over their 20-30 year lifespan.
Best for:
- Rooms that need natural light but not ventilation
- Vaulted ceilings, hallways, and stairwells
- Homeowners on a tighter budget
- Second-story rooms where opening a skylight is impractical
Typical sizing: 21" x 27" to 30" x 46". Fixed skylights account for roughly 60% of residential installations because they deliver the most light per dollar.
Venting (Operable) Skylights: $1,400-$3,200 Installed
Venting skylights open to allow air circulation. Manual versions use a crank handle or push bar, while electric and solar-powered models open with a switch, remote control, or smartphone app. The opening mechanism adds $400-$900 to the cost compared to a fixed skylight of the same size.
Best for:
- Kitchens and bathrooms where moisture and steam build up
- Bedrooms and living areas where fresh air circulation matters
- Upper-floor rooms where wall windows are not practical
Why they cost more: The hinge mechanism, seals, and weather stripping add complexity. Your contractor needs to ensure flashing and seals are perfect since any flaw in a venting skylight leads to leaks. Many premium models include rain sensors that automatically close the skylight when moisture is detected.
Tubular Skylights (Sun Tunnels): $700-$1,600 Installed
Tubular skylights are the most budget-friendly way to bring natural light into small or interior spaces. A dome on the roof captures sunlight and channels it through a highly reflective tube (10-14 inches in diameter) into the room below, where a diffuser lens spreads the light evenly.
Best for:
- Closets, hallways, laundry rooms, and small bathrooms
- Rooms where a traditional skylight will not fit or is too expensive
- Interior rooms far from exterior walls that get no natural light
Limitations: Sun tunnels do not provide a view of the sky and deliver less light than a full-size skylight. They also cannot be vented. But for the price, they are the best value for bringing daylight into spaces that would otherwise rely entirely on electric lighting.
Electric Venting Skylights: $2,000-$4,500 Installed
Electric venting skylights open and close at the touch of a button or wall switch. Most models include rain sensors that automatically close the skylight when moisture is detected, and many integrate with smart home systems for scheduled ventilation.
Best for:
- Hard-to-reach locations like tall cathedral ceilings
- Homeowners who want push-button or smart home convenience
- Rooms where a manual crank is not practical
Additional cost factor: You will need an electrician to run wiring to the skylight location, which adds $200-$500 to the project on top of the skylight and installation cost.
Solar-Powered Venting Skylights: $2,200-$5,000 Installed
Solar-powered skylights use a built-in solar panel to operate the opening mechanism, so no electrical wiring is needed. This eliminates the $200-$500 electrician cost and makes installation faster. They come with a remote control and typically include a built-in rain sensor.
Best for:
- Homeowners who want venting without running new electrical wiring
- Remote-controlled convenience with no wiring hassle
- Homes where running electrical to the roof would be expensive or disruptive
Tax Credit Note (Updated April 2026)
VELUX previously promoted their solar-powered skylights as eligible for the 30% federal Residential Clean Energy Credit (Section 25D). As of early 2026, VELUX has stated they can no longer certify that solar-powered skylights qualify under Section 25D and has removed this promotion. Consult a tax professional about your specific situation before relying on this credit.
Skylight Cost by Size
Skylight size directly affects both material cost and installation labor. Larger skylights require bigger roof openings, more structural support, and more flashing.
| Skylight Size | Material Cost (Unit Only) | Best For |
|---|---|---|
| 21" x 27" (small) | $150-$500 | Bathrooms, closets, hallways |
| 21" x 46" (medium) | $250-$800 | Bedrooms, home offices |
| 30" x 46" (standard) | $300-$1,200 | Living rooms, kitchens (most common) |
| 30" x 55" (large) | $500-$1,800 | Great rooms, master bedrooms |
| 44" x 46"+ (oversized) | $800-$2,500+ | Open-plan spaces, architectural features |
Material costs only. Add $800-$3,000+ for installation labor depending on roof type and complexity.
Sizing rule of thumb: A skylight should be no more than 5-15% of the room's floor area. For a 200 sq ft bedroom, that means a skylight between 10-30 sq ft. Too large creates excessive heat gain in summer and heat loss in winter.
Skylight Installation Cost by Brand
Brand matters when it comes to skylights. Here is how the major manufacturers compare on price, warranty, and features:
| Brand | Price Range (Unit Only) | Warranty | Key Strengths |
|---|---|---|---|
| VELUX | $300-$2,500 | 10 yr install, 20 yr glass | Industry leader, widest selection, best flashing systems, smart home integration |
| Fakro | $250-$2,800 | 10-15 years | Strong value, innovative pivot designs, good for steep roofs |
| Sun-Tek | $150-$1,600 | 10 years | Budget-friendly, solid basic options, acrylic domes |
| Wasco | $300-$1,500 | 10 years | Strong in commercial applications, custom sizes |
| Marvin | $500-$3,000+ | 20 years | Premium quality, custom sizes, architectural-grade |
Our recommendation: VELUX skylights account for the vast majority of residential installations. They offer the best combination of quality, warranty coverage, energy efficiency, installer training programs, and aftermarket parts availability. For budget-conscious projects, Sun-Tek and Fakro deliver solid performance at a lower price point.
Skylight Cost by Glazing Material
The glass or lens material affects price, durability, energy efficiency, and clarity. Here is how the three main options compare:
| Glazing Type | Material Cost | Lifespan | Best For |
|---|---|---|---|
| Acrylic (plastic) | $150-$1,000 | 10-15 years | Budget projects, tubular skylights |
| Tempered glass | $200-$1,500 | 20-30 years | Standard residential, best clarity |
| Double-pane Low-E glass | $300-$3,500 | 25-30+ years | Energy efficiency, NJ climate (recommended) |
For New Jersey: We recommend double-pane Low-E glass with argon gas fill. Acrylic domes yellow and haze within 10-15 years and offer poor insulation in NJ's freeze-thaw climate. The upfront cost premium for double-pane Low-E pays for itself through energy savings and longer lifespan.
What Affects Skylight Installation Cost?
Beyond the skylight type, size, and brand, several factors can push your total cost up or down:
1. Roof Pitch and Material
Installing a skylight on a steep roof (8/12 pitch or higher) costs more because the work is harder, takes longer, and requires additional safety equipment. Metal roofs and tile roofs also require more specialized cutting techniques and custom flashing.
| Roof Type | Added Cost |
|---|---|
| Asphalt shingles (standard pitch) | No added cost |
| Steep-slope roof (8/12+) | +$200-$500 |
| Metal roof | +$300-$800 |
| Tile roof | +$500-$1,200 |
| Flat roof (curb-mounted) | +$300-$700 |
2. Light Shaft Construction
If there is an attic space between the roof and the ceiling, a light shaft (also called a light well) must be built to direct light down into the room. This is one of the most commonly overlooked costs in skylight installation.
Light shaft cost: $1,000-$3,000+
This includes framing, insulating, drywalling, taping, and painting the shaft. Cost depends on the distance between the roof and ceiling and whether you choose a straight shaft or a flared shaft (which spreads light across a wider area).
If your room has a vaulted ceiling that goes right up to the roof deck, you skip this cost entirely — the skylight mounts directly and no shaft is needed.
3. Structural Reframing
If a roof rafter or truss is in the way of the skylight location, it needs to be cut and reframed with headers. This is standard practice, but it adds labor and materials.
Structural reframing cost: $200-$800. With engineered trusses, you may also need a structural engineer's approval before cutting, which adds $200-$500 for the assessment.
4. Flashing Kit
Proper flashing is the single most important factor in preventing leaks. Every skylight installation should include a manufacturer-specific flashing kit designed for your roof type.
Flashing kit cost: $50-$200 (usually included with the skylight purchase from VELUX and Fakro).
5. NJ Building Permits
Most New Jersey municipalities require a building permit for skylight installation because it involves a structural modification to the roof.
NJ permit cost: $100-$350. Your contractor should handle the entire permit and inspection process. If a contractor says you do not need a permit, that is a red flag.
6. Multiple Skylight Discount
Installing multiple skylights at the same time saves money per unit because the crew is already set up on the roof. Expect a discount of 10-20% per additional skylight when installing two or more simultaneously.
Skylight Installation Cost in New Jersey by County
Labor rates and permit costs vary across NJ counties. Here is what to expect in the areas we serve most frequently:
| County | Fixed Skylight (Installed) | Venting Skylight (Installed) |
|---|---|---|
| Essex County | $1,800-$3,000 | $2,500-$4,200 |
| Passaic County | $1,600-$2,800 | $2,300-$4,000 |
| Bergen County | $2,000-$3,500 | $2,800-$4,800 |
| Morris County | $1,800-$3,200 | $2,500-$4,500 |
| Union County | $1,700-$3,000 | $2,400-$4,200 |
| Hudson County | $1,900-$3,200 | $2,600-$4,500 |
Bergen County tends to run highest due to higher labor rates and more complex permitting processes. Essex and Passaic counties are generally the most competitive markets in North Jersey for skylight installation.
Skylight Replacement vs. New Installation
Replacing an existing skylight costs significantly less than a new installation because the roof opening, light shaft, and flashing framework already exist.
| Project Type | Typical Cost | What Is Included |
|---|---|---|
| Replacement (same size) | $800-$2,200 | Remove old unit, install new unit + new flashing kit |
| Replacement (different size) | $1,500-$3,500 | Resize opening, reframe, new unit + flashing |
| New installation | $1,500-$4,500 | Cut new opening, reframe, new unit + flashing + light shaft if needed |
When to replace: If your existing skylight is more than 15-20 years old, shows fogging between the glass panes, leaks, or has yellowed glazing, replacement is worth the investment. Modern skylights are dramatically better at energy efficiency and leak prevention than units made even 10 years ago.
Pro tip: If you are getting a roof replacement, that is the ideal time to replace or add skylights. The roof is already open, the crew is already there, and you save $500-$1,000 in redundant labor costs.
Skylight vs. Window: Cost and Light Comparison
Wondering whether a skylight or a wall window makes more sense? Here is a direct comparison:
| Factor | Skylight | Wall Window |
|---|---|---|
| Installation cost | $1,000-$4,500 | $300-$1,200 |
| Light delivered | Up to 30% more than same-size window | Standard directional light |
| Interior rooms | Can light rooms with no exterior walls | Requires exterior wall |
| Privacy | Complete privacy (overhead light) | May need blinds or frosting |
| Structural impact | Cuts into roof (requires roofer) | Cuts into wall (requires framing) |
| Home value impact | +1-2% home value | Varies by location |
Bottom line: Skylights cost more to install but deliver significantly more light per dollar, especially in rooms that cannot have wall windows. They are the only option for interior rooms, hallways, and spaces where privacy matters.
Energy Efficiency and Tax Credits
Modern skylights with Low-E glass and argon gas fill can actually reduce your energy bills by bringing in natural light and reducing the need for electric lighting during the day.
ENERGY STAR Certification
Look for ENERGY STAR-certified skylights, which meet strict energy efficiency requirements set by the EPA. In New Jersey's climate zones (4 and 5), you want skylights with:
- U-factor of 0.35 or lower (measures heat loss)
- Solar Heat Gain Coefficient (SHGC) of 0.25 or lower (measures heat from sunlight)
Federal Tax Credit Status (2026 Update)
Important Update:
VELUX, the largest skylight manufacturer, previously promoted their solar-powered skylights and blinds as eligible for the 30% federal Residential Clean Energy Credit under IRS Section 25D. As of early 2026, VELUX has stated they can no longer certify that these products qualify under Section 25D and has removed this promotion from their website.
If you are considering a solar-powered skylight partly for the tax credit, consult a tax professional before purchase. The Energy Efficient Home Improvement Credit (Section 25C) may still apply to ENERGY STAR-certified skylights for up to $600 per year, but eligibility varies. Get professional tax advice for your specific situation.
Energy Savings
ENERGY STAR-certified skylights can reduce lighting energy costs by up to 10% in rooms where they replace electric lighting during daytime hours. Venting skylights also reduce cooling costs in summer by allowing hot air to escape through the stack effect — hot air rises and exits through the open skylight, pulling cooler air in through lower windows.
Skylight ROI: Do Skylights Increase Home Value?
Yes. Skylights deliver a measurable return on investment through three channels:
1. Home Value Increase: 1-2%
Real estate appraisers consistently report that professionally installed skylights add 1-2% to a home's perceived value. For a $400,000 NJ home, that is $4,000-$8,000 in added value from a $2,500-$3,500 skylight installation.
2. Energy Savings: $50-$200/Year
Reduced daytime electric lighting costs plus passive ventilation savings (on venting models) add up over the 20-30 year lifespan of a skylight.
3. Buyer Appeal
Homes with skylights sell faster because bright, naturally lit rooms photograph better and feel more spacious during showings. This is especially true for kitchens, bathrooms, and master bedrooms.
DIY vs. Professional Skylight Installation
Skylight installation involves cutting into your roof — the most critical waterproofing layer of your home. Here is why professional installation is worth the cost:
| Factor | DIY | Professional |
|---|---|---|
| Cost | $200-$1,200 (materials only) | $1,000-$4,500 (all-in) |
| Leak risk | High — improper flashing | Very low — manufacturer-spec flashing |
| Warranty | Voided by most manufacturers | Full product + workmanship warranty |
| Permit handling | Homeowner responsibility | Contractor handles everything |
| Structural risk | Can cut wrong rafters | Proper load assessment |
| Roof warranty | Likely voided | Maintained |
Why We Do Not Recommend DIY Skylight Installation
A botched skylight installation can cause thousands of dollars in water damage before you even notice a leak. It also voids both the skylight manufacturer warranty and your existing roof warranty. The $800-$3,000 you save on labor is not worth the risk of a $10,000+ water damage repair.
Skylight Installation Process: What to Expect
Here is what happens when you hire a professional to install a skylight, step by step:
Interior Marking and Inspection
The contractor marks the desired skylight location from inside the room, checking for electrical wiring, plumbing vents, HVAC ducts, and structural members that could interfere with placement.
Roof Opening and Reframing
From the roof, the crew cuts the opening through shingles, underlayment, and decking. Any cut rafters are reframed with headers to redistribute the structural load.
Skylight and Flashing Installation
The skylight is set in place, leveled, and secured to the roof deck. The manufacturer-specific flashing kit is installed layer by layer, integrating with the surrounding shingles for a watertight seal.
Interior Light Shaft (If Needed)
If an attic space exists between the roof and ceiling, the crew frames a light shaft, insulates it, covers it with drywall, tapes, muds, and paints it. Straight shafts cost less; flared shafts spread light across a wider area.
Testing, Inspection, and Cleanup
The contractor tests venting operation (on operable models), inspects all flashing from the roof, verifies the seal is watertight, and cleans up all debris inside and outside. A final municipal inspection may be required per your NJ building permit.
How Long Does Skylight Installation Take?
| Project | Timeline |
|---|---|
| Single fixed skylight (no light shaft) | 4-6 hours |
| Single fixed skylight (with light shaft) | 1-2 days |
| Single venting skylight | 6-8 hours |
| Multiple skylights (2-3) | 1-3 days |
| Custom/oversized skylight | 2-4 days |
| Skylight replacement (same size) | 3-5 hours |
Signs You Need Skylight Repair or Replacement
If you already have a skylight, watch for these warning signs:
- !Condensation between glass panes — the seal has failed and the insulating gas has escaped
- !Water stains around the skylight — could be a flashing failure or a cracked seal
- !Yellowed or discolored glazing — UV damage has degraded the acrylic or polycarbonate lens
- !Cracked glass or frame — storm damage or age-related deterioration
- !Difficult to open or close — mechanical failure in the venting mechanism
- !Noticeable drafts or cold spots — the seal or weatherstripping has deteriorated
If you notice any of these, get a professional roof inspection. A small repair now ($200-$500) can prevent a much larger water damage problem later.
Common Skylight Installation Mistakes to Avoid
1. Skipping the Manufacturer Flashing Kit
Generic or improvised flashing is the number one cause of skylight leaks. Always use the manufacturer's flashing kit designed for your specific skylight model and roof type. A $100 kit prevents thousands in water damage.
2. Choosing the Wrong Size
A skylight that is too large for the room creates excessive heat gain in summer and heat loss in winter. Follow the 5-15% rule: skylight area should be 5-15% of the room's floor area.
3. Ignoring Roof Orientation
North-facing skylights provide consistent, diffused light without excess heat gain. South-facing skylights bring in the most light and heat. East and west-facing get intense morning or afternoon sun. Choose based on the room's needs.
4. DIY Installation
Skylight installation involves cutting into your roof. A mistake means leaks, structural damage, and voided warranties. This is not a DIY project.
5. Not Checking for Obstructions First
Electrical wiring, plumbing vents, HVAC ducts, and structural members can all be in the way. A professional roofer checks for all obstructions from inside and from the attic before making the first cut.
6. Choosing Acrylic Over Glass in NJ Climate
Acrylic dome skylights are cheaper but yellow within 10-15 years and offer poor insulation in NJ's freeze-thaw climate. Invest in tempered or double-pane Low-E glass for a skylight that lasts 25-30 years.
How to Choose a Skylight Installer in NJ
Not every roofer has experience with skylight installation. Here is what to look for:
- Licensed and insured in New Jersey — verify their NJ Home Improvement Contractor (HIC) registration at newjersey.mylicense.com
- Manufacturer-certified — VELUX has a certified installer program that ensures proper training on their flashing systems
- Roofing expertise first — skylight installation is fundamentally a roofing project. Your installer should be a roofer, not a general handyman
- Written warranty — get a workmanship warranty (minimum 2 years) in addition to the manufacturer's product warranty
- Permit handling — a professional contractor handles the entire NJ permit and inspection process
- References and reviews — ask for recent skylight installation references in your area
- Itemized written estimate — materials, labor, flashing, permits, and any additional costs should be broken out separately
Frequently Asked Questions
How much does it cost to install a skylight on an existing roof?
A standard fixed skylight installation on an existing roof costs $1,500-$4,500 in New Jersey, including the unit, flashing, labor, and basic interior finishing. Add $1,000-$3,000 if a light shaft needs to be built through the attic space, and $200-$800 for structural reframing if rafters need to be cut.
Are skylights worth the investment?
Yes. Skylights increase natural light by up to 30%, reduce daytime electricity costs by up to 10%, and add 1-2% to home value. A skylight that costs $2,500 installed can add $3,500-$7,000 in perceived home value. The ROI is strongest in rooms that currently rely on electric lighting during the day.
Do skylights leak?
Modern skylights installed correctly with manufacturer flashing kits rarely leak. Most skylight leaks are caused by improper installation, damaged flashing, or failed seals on units over 15-20 years old. Using the correct manufacturer-specific flashing kit virtually eliminates leak risk.
How long do skylights last?
Quality skylights from brands like VELUX and Fakro last 20-30 years. The glass and frame can last even longer, but seals and flashing may need attention around the 15-20 year mark. Tubular skylights last 20-25 years.
Can you install a skylight on a flat roof?
Yes. Flat roof skylights use a curb-mounted design that raises the skylight above the roof surface for proper drainage. Expect to pay an additional $300-$700 compared to a standard sloped roof installation.
Do I need a permit to install a skylight in NJ?
Yes. Most NJ municipalities require a building permit for skylight installation because it involves a structural modification to the roof. Permit costs range from $100-$350. Your contractor should handle the permit process.
Is it cheaper to install a window or a skylight?
Windows are cheaper to install ($300-$1,200 per unit vs $1,000-$4,500 for skylights). However, skylights deliver up to 30% more light than a same-sized wall window and can light rooms that have no exterior walls. For rooms where privacy and overhead natural light are priorities, skylights offer better value per lumen.
What is the best time of year to install a skylight in NJ?
Late spring through early fall (April-October) is ideal. You want dry weather for the installation, and temperatures above 40 degrees F help roofing sealants cure properly. Experienced contractors can install year-round, but warmer months give the best results.
Can you install a skylight without attic access?
If the room has a cathedral or vaulted ceiling that goes directly to the roof, no attic access is needed. If there is an attic space, a light shaft must be built to channel light down, adding $1,000-$3,000 to the project.
How much energy does a skylight save?
ENERGY STAR-certified skylights can reduce lighting energy costs by up to 10% in rooms where they replace electric lighting. Venting models also reduce cooling costs by allowing hot air to escape through the stack effect.
Should I replace my skylight when I replace my roof?
If your skylight is more than 15 years old, yes. Replacing during a roof replacement saves $500-$1,000 in labor because the roof is already open. The new flashing also integrates better with fresh roofing material. If your skylight is under 10 years old and in good condition, it can usually be re-flashed and kept.
Get a Free Skylight Installation Estimate in NJ
R&E Roofing installs skylights across Essex County, Passaic County, Bergen County, and surrounding North Jersey communities. We are licensed, insured, and experienced with all skylight types and roof materials.
- Free roof inspection to assess skylight placement
- Written quote with all costs itemized
- Manufacturer-specific flashing on every installation
- Product warranty plus our workmanship guarantee
R&E Roofing is a licensed NJ roofing contractor serving Orange, West Orange, Montclair, Bloomfield, Nutley, Clifton, Passaic, Wayne, Paterson, and surrounding North Jersey communities. We specialize in roof replacement, skylight installation, gutter systems, siding, and storm damage repair.