A standard fixed skylight replacement in the Tempe, AZ area typically runs $700 to $2,500 installed, with tubular “sun tunnel” units at the low end and larger deck-mounted glass skylights on a tile roof at the high end. The exact number depends on the skylight type, the roof material it sits in, and whether the old flashing can be reused or has to be rebuilt.
What does skylight replacement cost in Tempe?
Skylight replacement cost in the Tempe area breaks down mainly by skylight type and mounting style, not just size. A tubular skylight (sometimes called a sun tunnel) is the least expensive option because it uses a small reflective tube instead of a full framed opening. A traditional fixed skylight costs more, and the price climbs again if the unit sits on a raised curb rather than flush against a deck-mounted frame, because curb-mounted units need more flashing work.
Ventilating or electric-opening skylights sit at the top of the range due to the motor, wiring, and remote or smart-home controls. On any of these, replacing just the glass or acrylic dome while reusing the existing frame and flashing is the cheapest path, when the frame is still sound.
| Skylight type | Typical installed cost |
|---|---|
| Tubular / sun tunnel | $450 – $1,100 |
| Fixed acrylic dome, deck-mounted | $700 – $1,400 |
| Fixed glass, curb-mounted | $1,200 – $2,500 |
| Ventilating / electric-opening | $1,800 – $3,800+ |
| Glass/dome-only swap (frame reused) | $300 – $900 |
These ranges assume a straightforward, like-for-like swap on an asphalt shingle or flat roof. Add to the high end of each range when the roof is tile, when the old flashing has to be rebuilt instead of reused, or when the opening is being resized.
Want a firm number for your specific skylight and roof type?
Why does Arizona’s sun wear out skylights faster?
Acrylic and polycarbonate domes take a beating from Arizona’s UV intensity and summer rooftop temperatures, which regularly climb well above 150°F. That combination of UV exposure and heat cycling yellows and embrittles plastic domes years before they’d fail in a milder climate, and it dries out the rubber gaskets and sealants around the frame. Where a skylight might last 20+ years in a cooler, less sun-intense region, an Arizona homeowner often sees cracking, yellowing, or seal failure in the 10-to-15-year range.
That shorter practical lifespan is the main reason skylight replacement comes up more often here than in other markets, and why a cracked or hazy dome that still “holds water” during light rain should still be evaluated before monsoon season, when wind-driven rain tests every weak seal on the roof.
Does a tile roof change the cost?
Yes. Tile roofs are common across Tempe, Chandler, Gilbert, and Scottsdale, and a skylight set into a tile roof almost always costs more to replace than one on a flat or shingle roof. The tile has to be carefully removed and reset around the opening without cracking adjacent tiles, and the flashing has to step correctly under the tile courses above the skylight and over the courses below it. Matching older or discontinued tile profiles can also add cost and lead time if a few tiles break during the work.
If the existing flashing on a tile roof skylight was installed correctly the first time, a contractor may be able to reuse much of it and only rebuild the sections disturbed by removing the old unit. If it wasn’t, full flashing replacement is usually the safer call rather than reusing questionable flashing under new tile.
Repair, reseal, or full replacement?
Not every leaking or hazy skylight needs full replacement. A reseal, where the perimeter sealant and gaskets are stripped and redone, can resolve a leak caused by dried-out caulking on an otherwise sound frame, and typically costs a few hundred dollars. A cracked dome on a frame that’s still square and watertight is often a glass- or acrylic-only swap rather than a full tear-out.
Full replacement makes more sense when the frame itself is rotted, rusted, or warped; when the flashing has failed in multiple spots; when the unit is original to a home more than 15-20 years old; or when a homeowner is already planning other roof work and wants to combine the labor. For a deeper look at leak causes specifically (as opposed to replacement cost), see this site’s guide to common skylight leak causes and fixes.
Do you need a permit, and what does code require?
A straight swap of one skylight for a same-size, same-location unit is often treated as a minor repair in Tempe and the surrounding East Valley cities, but enlarging the opening, changing the roof framing, or adding a new skylight where none existed typically requires a building permit. Requirements vary by city, so it’s worth confirming with the local building department or asking the installing contractor to pull the permit if one’s required.
Current residential building code also requires skylight glazing to be safety glazing, meaning tempered glass, laminated glass, or approved plastics rated for overhead use, since a skylight is glazing installed over living space. When replacing an older skylight, this is also a chance to confirm the new unit carries the impact and UV ratings appropriate for Arizona’s sun exposure and occasional hail, rather than assuming a big-box retail unit is rated the same as what came out.
| Situation | Likely fix |
|---|---|
| Leak only, frame and dome intact | Reseal / flashing repair |
| Cracked or yellowed dome, frame sound | Dome-only replacement |
| Rotted or rusted frame | Full unit replacement |
| Unit is 15-20+ years old | Full unit replacement |
| Enlarging or relocating the opening | Full replacement + permit |
A real-world example: a Chandler kitchen skylight
For example, a homeowner in Chandler with a 20-year-old acrylic dome skylight over a kitchen noticed a yellowed, hazy dome and a faint water stain starting on the drywall below after a windy spring storm. A roofer from the network inspecting the unit found the dome had embrittled from years of UV exposure and had a hairline crack most visible from inside, while the frame and deck underneath were still solid. Because the frame was sound, the fix was a dome-only replacement with a new impact-rated acrylic unit and fresh perimeter sealant, rather than a full tear-out — a lower-cost repair that wouldn’t have been possible if the frame or flashing had also failed.
What should you ask a contractor before replacing a skylight?
Before approving a quote, it’s worth asking a few direct questions: whether the quote is for a dome-only swap or a full unit and flashing replacement; whether the flashing is being reused or rebuilt; what UV and impact rating the replacement glazing carries; and whether a permit is needed and who’s pulling it. For any roofing work in Arizona, it’s also worth asking to see the contractor’s Arizona ROC license number and a current certificate of insurance before work begins — a legitimate contractor will provide both without hesitation.
Not sure if your skylight needs a reseal or a full replacement?
Frequently asked questions
How much does it cost to replace a skylight in Tempe, AZ?
Most fixed skylight replacements in the Tempe area run $700 to $2,500 installed, depending on the skylight type and roof material. Tubular sun tunnels run less, often $450 to $1,100, while curb-mounted or ventilating units on a tile roof run toward the higher end.
Is it cheaper to repair or replace a skylight?
Repair is almost always cheaper when the frame and flashing are still sound. A reseal or dome-only swap can run a few hundred dollars, versus $700 or more for a full unit and flashing replacement. A roofer can inspect the frame to confirm which option actually applies.
Do I need a permit to replace a skylight in Tempe?
A like-for-like swap in the same opening is often treated as a minor repair, but enlarging the opening or adding a new skylight typically requires a permit. Requirements vary by city in the East Valley, so confirm with the local building department or the contractor doing the work.
How long do skylights last in Arizona’s heat?
Many skylights in Arizona show cracking, yellowing, or seal failure within 10 to 15 years because of intense UV exposure and high rooftop temperatures, compared with 20+ years in milder climates. Acrylic domes and rubber gaskets are usually the first components to fail.
Does a tile roof make skylight replacement more expensive?
Yes. Tile has to be carefully removed and reset around the opening, and the flashing has to integrate correctly with the tile courses, which adds labor and sometimes tile-matching cost compared with a shingle or flat roof.
What’s the difference between a tubular skylight and a traditional skylight?
A tubular skylight (sun tunnel) uses a small reflective metal tube and a low-profile roof cap to bring in light, while a traditional skylight uses a full framed opening with a glass or acrylic dome. Tubular units cost less to install and work well for hallways and bathrooms, while traditional skylights suit larger rooms needing more daylight.
Can I replace just the dome or glass without replacing the whole skylight?
Often, yes, if the frame and flashing underneath are still structurally sound and watertight. A dome-only or glass-only replacement is typically the lowest-cost option and is common for skylights where only the exterior glazing has clouded, yellowed, or cracked.
Does homeowners insurance cover skylight replacement?
It depends on the cause. Damage from a covered peril, such as hail or wind-driven storm debris, is often covered subject to the policy’s deductible, while gradual wear, UV degradation, or lack of maintenance typically isn’t. Check the specific policy and consider photographing damage right after a storm.
How long does a skylight replacement take?
A straightforward dome-only or flush skylight swap can often be done in a few hours. A full unit and flashing replacement, especially on a tile roof, more commonly takes a full day per skylight once the roofer accounts for tile removal, flashing rebuild, and resealing.
For related reading, see this site’s guides to tile roof repair and roof leak repair, or request a free inspection quote to get a firm number for your specific skylight.