A full skylight replacement costs $800 to $2,400 on average, while skylight repairs run $100 to $650 depending on the issue, per HomeGuide (February 2026)2. For comparison, installing a skylight where none existed costs $1,014 to $2,828 with a national average of $1,920, per Angi and HomeAdvisor — corporate siblings, and matching figures alone don’t establish independent corroboration; both of those pages are labeled for installation, not replacement13. Figures below are the latest published data from each source.
Replacement cost by part
HomeGuide’s replacement and component table2:
| Service | Average cost (HomeGuide) |
|---|---|
| Glass replacement | $150–$600 |
| Dome replacement | $350–$900 |
| Motor replacement | $350–$700 |
| Blinds replacement (part only) | $100–$500 |
| Mobile home skylight replacement | $250–$700 |
| Full skylight replacement | $800–$2,400 |
Two scope notes as published: HomeGuide’s own glass-replacement section gives $300 to $650, a narrower band than its $150 to $600 table row, and its blinds figures are material prices only (manual $100 to $250, motorized $300 to $500)2.
Repair costs by issue
HomeGuide’s repair table2:
| Repair | Average cost (HomeGuide) |
|---|---|
| Leak repair | $225–$800 |
| Resealing | $75–$250 |
| Weather stripping | $75–$300 |
| Flashing repair | $150–$500 |
| Frame repair | $150–$600 |
On the overall repair range, Angi publishes $250 to $800 on its installation-labeled page, against HomeGuide’s $100 to $650 — different publishers and page scopes, presented as published12. Small parts: a replacement hand crank runs $10 to $70 for the part alone, and HomeGuide prices skylight cleaning at $8 to $16 per skylight up to 30 square feet, or $1.50 to $2.50 per square foot2.
Replacement vs new installation
HomeGuide prices adding a skylight where none existed at $1,600 to $4,200, against its $800 to $2,400 replacement band2. The siblings’ installation pages put professional installation at $1,014 to $2,828, averaging $1,920 per skylight13. Angi states on its installation page that new skylight installations are generally more expensive than replacements, with the explanation, as published, that replacements cost less when the existing opening and flashing are in good condition because new installs require cutting into the roof and more interior finishing1.
Removal and roofing over
HomeGuide prices removing a skylight alone at $125 to $250, and removing it and roofing over the opening at $350 to $1,000, depending on roof type2.
Labor, timing and lifespan
HomeGuide puts skylight repair labor at $30 to $80 per hour, with $150 to $300 minimum call-out fees for roof work and $200 to $300 added for emergency repairs; a full replacement takes 3 to 5 hours2. On lifespan, HomeGuide estimates skylights need replacing every 15 to 40 years depending on type, brand and installation quality, while Angi publishes 15 to 25 years and its own rule of thumb that replacement makes sense once repairs exceed 50% of a new installation — each attributed as published12.
Permits
Whether a skylight project needs a permit depends on your local building authority and the project scope, so confirm with your municipality before work starts. For budgeting, HomeGuide publishes a permit estimate of $100 to $500 depending on whether the job is a repair or a replacement2.
Related cost guides
Adding one new? See skylight installation cost. Nearby roof and window projects: roof repair, roof replacement, roof inspection, window repair, window replacement and window blinds installation.
The bottom line
Budget $800 to $2,400 for a full skylight replacement on HomeGuide’s figures, or $100 to $650 for a typical repair — with leaks at the top of the repair list at $225 to $800. The repair-versus-replace call turns on the unit’s age and the repair’s share of a new install, per both publishers’ guidance, so get at least three itemized quotes that separate the unit, labor, flashing, interior finishing and any roof work.
Sources (each fetched and read October 26, 2026; figures are each publisher’s latest published data):
1. Angi, “How Much Does Skylight Installation Cost? [2026 Data]” (updated September 8, 2026; installation-labeled page — used only for its explicit repair/replacement rows and installation figures, with scope noted) — angi.com/articles/how-much-skylight-installation-cost.htm
2. HomeGuide, “How Much Does It Cost to Repair or Replace a Skylight? (2026)” (February 5, 2026) — homeguide.com/costs/skylight-replacement-or-repair-cost
3. HomeAdvisor, “How Much Does Skylight Installation Cost?” (updated June 19, 2026; installation-labeled page, installation figures only) — homeadvisor.com/cost/doors-and-windows/install-a-skylight