Your homeowner just texted a photo of her roof. Eighteen black solar panels cover the whole south slope, and her question is short: "Can you still do the lights?" The answer is yes, and it is a better sale than most installers realize.
I have installed Christmas lights professionally since 2014 and run a 43,000+ member installer community, and solar roofs are one of the questions that comes up most each fall. The rules are simple once you know where the panels end and the roof begins.
Can you put Christmas lights on a roof with solar panels?
You can, because the lights were never going on the panels in the first place. A solar array covers the middle of a roof slope. Your lights live on the edges: eave lines, gable rakes, ridge ends, dormers, columns, trees and bushes. Those edges are almost always open.
The homeowner is not buying lights on panels. She is buying the moment her family pulls into the driveway on Christmas Eve and the house looks magical. Lead with that feeling, then explain how you protect her investment while you build it.
| Light it | Skip it |
|---|---|
| Eave line below the array | Panel glass, frames, rails and rail feet |
| Gable rakes and peaks outside the array | Conduit, junction boxes and array wiring |
| Ridge ends, dormers and porch roofs | Any clear strip left beside the array for roof access |
| Trees, bushes, columns, wreaths and garland | Walking on or leaning a ladder against the array |
What do you light when the array covers most of the roof?
Measure the lit runs, not the roof. Walk the house with the homeowner and count only the edges you will actually light. The method is the one in our guide on measuring a house for Christmas lights, with one extra step: mark the array boundary first.
Here is a real-world shape. A two-story home has a 64-foot front eave, two 26-foot gable rakes and a 22-foot garage eave. That is 138 linear feet. The south slope behind it holds the panels and never enters the quote.
- Mark the array edge. From the ground, note where panels stop and open shingle starts on each slope.
- Pre-bulb and pre-clip at the shop. Build C9 LED runs on SPT-1 with enclosed Tuff Clips at 12" or 15" spacing, and bench-test them before they leave the shop.
- Clip to the shingle, eave and gable edge only. Use no-drill enclosed clips and never hot glue. Tuff Clips cover shingle and tab edges; Christmas light clips covers the rest.
- Stop each run before the array. End at the last clear shingle. Visible wire between runs is normal, so do not stretch a cord across panels to close a gap.
- Keep lights out of valleys and away from any strip beside the array that the solar installer left open for roof access.
- Power from a standard outdoor outlet and finish with drip loops and sockets pointing down.
For the clipping technique itself, this walkthrough shows the bulb-and-clip method on a shingle roof:
If the open edges are steep or tight, the techniques in no-drill clips for dormers, gables and steep roofs apply directly. Panels on a low-slope or flat section follow the rules in our flat-roof no-drill install guide.
How do you set a ladder when panels sit near the eave?
Treat the array like a window you cannot touch. Panels are glass, and the frame edge is not a ladder rest. Set the ladder on the eave or on a clear section of roof edge, use a standoff, and check that no rail or panel edge takes any of the load.
If the only reachable edge is next to the array, reposition the ladder rather than lean against it. Aluminum ladders are fine; the fiberglass-only rule is a myth, as covered in aluminum vs fiberglass ladders. Harness and gear rules are in roof safety gear for Christmas light crews, and the full ladder-to-roof process is in how to hang Christmas lights on a roof.
Panel glass is slick, and a slip puts a crew member and an expensive system at risk. If a run cannot be reached without stepping on the array, skip it and sell a tree, a wreath or a gable accent instead.
Do cords and clips damage solar panels or void the warranty?
They should not, because nothing touches the system. Three habits protect it: no clips on panel frames or rails, no cord resting on panel glass (a shaded cell cuts daytime output), and no contact with array wiring or conduit.
Warranties differ by installer, so I tell homeowners to confirm with their solar company before the job. A one-line text from the homeowner to the solar installer settles it, and it shows you take the roof seriously. Keep your insurance coverage current and put the no-contact rule in your install contract.
Where do you plug in the lights?
Use a standard exterior GFCI outlet the homeowner already has, never the inverter, the solar circuit or the panels. Never test or replace a homeowner's GFCI; that is a job for a licensed electrician. If it trips, splitting your runs will not fix it. Find the water, as explained in why a Christmas light GFCI keeps tripping.
Keep 5 to 10 portable GFCI adapters on the truck for houses with a missing or dead outlet.
How do you quote a house with solar panels?
Quote it like every other house: $8–$12 per linear foot on the footage you light, with peaks, ridge caps and dormers priced the same as roofline. Takedown is included. Do not invent a "solar surcharge," and do not discount because the array shrinks the lit footage. You are selling the finished look, not the roof area.
| Item | Footage or size | Price range |
|---|---|---|
| Front eave | 64 ft | $512–$768 |
| Two gable rakes | 52 ft | $416–$624 |
| Garage eave | 22 ft | $176–$264 |
| Roofline total | 138 ft | $1,104–$1,656 |
| 10-ft tree (optional add) | $30–$60 per foot of height | $300–$600 |
I would quote that house at $1,347 and pitch a tree and a wreath on the open gable. Quotes end in 7, and the 30%–50% deposit secures the homeowner's install date.
The phone call changes by one question. Open the way you always do: "Hi, I'm Jason with [Company]. How can we help you with this amazing, magical Christmas season? We want to make this magical." Then ask what they are looking for, and whether they have ever had Christmas lights professionally installed. Add one more: "Do you have solar panels on the roof?" Ask for a photo of each slope; most leads want an online quote, so reply in 5 to 20 minutes and under an hour at most, with an AI mock-up of their house lit up.
For an in-person estimate, walk beside the homeowner, talk about Christmas Eve and the grandkids, and step out to your truck to build the quote. Then return to the kitchen table to present it, as laid out in the kitchen-table close and the walkthrough questions that sell the magic. For mock-up prompts, see AI house mockups for Christmas light sales.
Want the footage math done for you? Run the numbers in our Christmas light calculator, and stock the crew with pro light kits so every solar-roof run arrives pre-bulbed and tested.
Related Guides
- How to Bid Christmas Light Jobs: Contractor Pricing Breakdown
- Ridge Clips for Christmas Lights: Complete Installation Guide
- Christmas Light Installation Safety: A Pro Contractor's Guide
- The pro installer tools list
Frequently Asked Questions
Can you put Christmas lights on a roof with solar panels?
Yes. Light the eaves, gables, ridge ends and dormers that sit outside the array, and keep every clip, cord and ladder off the panels, their frames, rails and wiring. Nobody should walk on the array.
Do Christmas lights block solar panels or hurt their output?
LED lights are not a problem at night, but a cord or bulb resting on the glass during the day shades cells and can cut output. Keep all lighting off the panel surface so the system performs normally all season.
Will hanging Christmas lights void a solar panel or roof warranty?
Warranties vary, so ask the homeowner to check with the solar installer. Because the lights never touch the panels, rails or wiring and use no-drill clips on the shingle, eave and gable edges, most jobs avoid the issue entirely.
Can you plug Christmas lights into a solar system?
No. Plug into a standard exterior GFCI outlet the homeowner already uses for outdoor power. Never connect to the inverter, the solar circuit or the panels. If a GFCI trips, the homeowner needs a licensed electrician, not a replacement from your truck.
How much does it cost to light a house with solar panels?
Price the footage you actually light at $8–$12 per linear foot, the same as any roofline, and takedown is included. A 138-foot solar-roof job lands between $1,104 and $1,656, and packages start at $1,200.
About the author: Jason Geiman has installed Christmas lights professionally since 2014 and is the founder of Christmas Lights HQ. He runs a 43,000+ member community of professional installers (join the Facebook group) and teaches crews how to install, price and sell. His background as a firefighter shapes how he thinks about roof access and keeping clear paths open on any roof.