Why Is My Roof Leaking After Solar Panel Installation?

It didn’t start with a crack or a missing shingle.

It started with a faint water ring on the ceiling — small enough to ignore… until a storm turned it into a full‑blown drip that soaked your living room rug.

You climb into the attic with a flashlight, and there it is: wet insulation, water trails, and a leak lined up exactly under the shiny new solar panels you had installed just months ago.

The installer swore the roof would be “completely sealed” and “as weather‑tight as before,” but now the damage is growing with each passing day. 

“Was this my fault? Did the installers mess up? Is my roof warranty gone? And who’s going to pay for this?”

Here’s the truth — a roof leak after solar panel installation isn’t just an inconvenience. Left unchecked, it can spiral into thousands of dollars in repairs, mold growth, and even structural damage. And if the installer cut corners or skipped a step, you might be the one holding the bill… unless you act fast.

This isn’t rare. Homeowners across the U.S. — from brand‑new builds to 20‑year‑old roofs — have faced the same post‑solar nightmare. The difference between fixing it for free and going broke fixing someone else’s mistake often comes down to knowing your rights and how to prove what went wrong.

In this guide, you’ll learn:

  • The most common causes of leaks after solar installation
  • How to tell if it’s the installer’s fault or pre‑existing roof issues
  • What your warranty and state law may cover
  • The exact steps to take before the next rainstorm hits

Is It Normal for a Roof to Leak After Solar Panel Installation?

No. 

A properly installed solar panel system should not cause your roof to leak — period.

If your roof was in good condition before the installation, and the installers did their job to industry standards, penetrations for mounting hardware should be watertight for years. 

With that said, it’s important to separate normal weathering or age‑related roof wear from actual installation‑caused leaks. Why? 

Because your legal and warranty options depend on it. 

If the leak ties directly to poor workmanship, you may have a claim for free repairs, compensation for damages, or both.

Pro Tip: If the leak is in the same area as solar mounting hardware, and it appeared soon after the install, start documenting immediately — take photos, keep records, and don’t make repairs before an independent inspection.

7 Ways Your Roof Gets Damaged Due to Solar Panel Installation

When installed correctly, solar panels shouldn’t compromise your roof. But when something’s rushed, skipped, or done by the wrong crew, a leak is almost inevitable. Here are the issues we see most often in post‑solar leak cases:

1. Poor or Rushed Workmanship

Some installation crews are under pressure to finish quickly — especially with door‑to‑door sales models promising next‑day installs.

  • Lag bolts are under‑ or over‑tightened, splitting wood or shingles.
  • Roof penetrations are sealed with low‑quality caulking instead of long‑lasting flashing systems.
  • Missing underlayment — installers drill directly through shingles into decking without waterproofing layers around the holes.
    These shortcuts can hold up for a few light rains, but heavy storms or freeze‑thaw cycles break the seal fast.

2. Incorrect or Missing Flashing

Flashing is the thin waterproof material (metal or flexible membrane) that surrounds mounting points to keep water out.

  • Wrong type: Using flashing designed for tile on an asphalt shingle roof.
  • Improper install: Flashing placed above, instead of under, shingles — allowing water to flow in instead of away.
    If your roof lacks proper flashing at each penetration, leaks aren’t just possible — they’re probable.

3. Penetrations in the Wrong Places

A roof has “no‑drill zones” — valleys, ridge caps, and low points where water naturally flows and pools.

  • Mounting rails installed here invite standing water and eventual seepage into the decking.
  • Worse, some installers put lag bolts directly into seams between shingles or panels of metal roofing, breaking the water barrier entirely.

4. Roof Age and Pre‑Existing Weakness

Even if the leak happens post‑solar, installers will often claim, “Your roof was already failing.” Sometimes they’re right:

  • Worn shingles or cracked tiles can’t hold a watertight seal around hardware.
  • Old decking wood can splinter around bolts, creating entry points for water.
    But here’s the catch — if your installer ignored visible roof issues and proceeded without repair or disclosure, that can still be their liability.

5. Incompatible Mounting Hardware

Roofs aren’t one‑size‑fits‑all. Hardware that works on a composite shingle may ruin a standing‑seam metal or clay tile roof.

  • Heavy clamps can crack brittle tiles.
  • Standard mounts can puncture waterproof membranes on flat roofs if not paired with proper sealants.
    The wrong hardware turns every rainy day into a slow‑drip disaster.

6. No Pre‑Installation Roof Inspection

A professional solar company should inspect and photograph the roof before drilling a single hole.

  • This allows them to spot weak areas, rotten decking, or existing leaks.
  • Skipping this step — or failing to document it — makes it harder for you to prove the installation caused the problem.

7. Poor Post‑Installation Clean‑Up

Leftover debris, shingle granules, or hardware scraps can interfere with water flow on your roof.

  • Clogged valleys or gutters increase pooling.
  • Sharp hardware edges can even tear underlayment when stepped on later for repairs.

Key takeaway: Most post‑solar leaks are preventable. They’re rarely “just bad luck” and almost always traceable to a decision (or omission) during installation.

Now, what about Natural Roof Wear & Tear?

Even without solar panels, roofs can fail due to:

  • Storm Damage: High winds lifting shingles, hail impact cracks, flying debris.
  • Aging & Wear: Shingles becoming brittle and curling, sealants drying out.
  • UV & Heat Exposure: Prolonged sun damage weakening materials.
  • Ice Dams: Water backing up under shingles in freezing weather.
  • Animal Intrusion: Squirrels, birds, or raccoons damaging flashing or decking.
  • Improper Prior Repairs: Patch jobs that didn’t hold over time.

If these issues existed before the install — and weren’t addressed — a leak could occur naturally. But, if the installer failed to flag pre‑existing problems and went ahead anyway, they may still share liability.

Comparison Table — Solar Install vs. Natural Causes

FactorInstaller‑Caused LeakNatural Cause Leak
TimingAppears immediately or within months after installationMay occur gradually over years or suddenly after a storm
LocationDirectly under panel mounts, rails, or conduit penetrationsRandom roof areas, valleys, or edges not related to panels
Roof Condition Pre‑InstallRoof was solid and inspected before workRoof was aged or had known damage before install
Signs on RoofUnsealed holes, improper flashing, cracked tiles under mountsMissing shingles, hail dents, animal damage
ResponsibilityInstaller and/or their subcontractorsHomeowner’s insurance, roofing warranty, or act of nature
Proof NeededPhotos, inspection report tying leak to mounting pointsWeather reports, prior roof maintenance records

Who Fixes the Mess and Pays the Bill? Warranty and Installer Liability

Here’s the good news: if the leak was caused by sloppy installation or defective parts, chances are someone else — not you — should be footing the repair bill.

The tricky part? Figuring out whose warranty applies and how to actually use it.

1. Your Solar Installer’s Workmanship Warranty

Most reputable installers offer a separate workmanship warranty in addition to equipment warranties.

  • Length: Can range from 1 year to 10 years (occasionally longer for high-end companies).
  • What it covers: Faulty labor — like improperly sealed penetrations, incorrect flashing, or other installation mistakes.
  • The catch: These warranties expire fast, so if you wait to report the leak, you might miss the window entirely.

Tip: If your contract says “workmanship warranty,” highlight it and note the expiration date. Even if the company resists at first, warranty language is your leverage.

2. Roofing Manufacturer’s Warranty

Here’s where it gets messy: some roofing manufacturers will void their product warranty if holes are drilled without approved flashing systems, or if the installer isn’t certified to work with their materials.

  • If your roof is still under the manufacturer’s coverage, ask: “Was my installer authorized to install panels on this roofing system?”
  • If they weren’t, you may have a claim against both the installer (for causing the leak) and the manufacturer (if they falsely represented compatibility).

3. Homeowner’s Insurance

Insurance may cover water damage to your home interior — but it won’t always pay to fix the actual cause (faulty installation).

  • Filing a claim could raise your premiums, so weigh the cost of repairs against the deductible and long-term cost.
  • Your insurer may “subrogate” — they pay you and then go after the installer to get reimbursed.

4. State Laws on Contractor Liability

In Texas and many other states, contractors can be held liable for breach of contract or negligence if their work causes property damage.

  • Texas also has the Deceptive Trade Practices Act, which can allow triple damages if you prove misrepresentation or misleading statements.
  • California requires licensed solar contractors to stand behind workmanship for at least 1 year by law.
  • Florida has strict licensing rules and can suspend licenses for poor workmanship.

Real Talk About Getting Warranty Repairs

  • Some installers go quiet the minute you mention a leak — disconnecting phone numbers or dodging calls.
  • Others may insist it’s “not our fault” without even sending someone to look at it.
  • This is when paperwork matters: photos, inspection reports, your original roofing condition. Without proof, they can try to pin the blame elsewhere.

Next Step: If your installer won’t respond, refuses responsibility, or is out of business, Bennett Legal can step in, contact their bonding/insurance, and use your state’s contractor laws to push for repairs or reimbursement.

Wielding the Law: Your Rights When an Installer Causes Damage

If your roof started leaking after solar installation and the evidence points to installer-caused damage, you’re not powerless. Between contract law, state contractor rules, and consumer protection statutes, there are multiple ways to demand repairs — or cash to fix them.

Breach of Contract

If your installer promised a watertight roof and failed to deliver, that’s a contractual breach. You can push for:

  • Immediate warranty repairs,
  • Reimbursement of repair costs,
  • Potential incidental damages (like replacing water-damaged drywall or flooring).

Negligence

Even if a warranty has expired, shoddy workmanship that causes damage can be negligence. In most states, homeowners can sue for the cost of repairs if they prove the installer failed to meet industry standards.

Consumer Protection Laws

  • Texas: Deceptive Trade Practices Act (DTPA) — you can recover up to triple damages if you’re 65+ and prove misrepresentation.
  • California: Contractors State License Board requires solar contractors to meet strict workmanship standards; repeated complaints can trigger license action.
  • Florida: The FDUPTA statute protects against unfair trade practices and can be used alongside contractor licensing complaints.

Insurance & Subrogation

Your homeowner’s insurance might pay for immediate damage mitigation and then go after the installer to recover the cost. This means you get repairs faster without fronting the entire bill.

Tip: Contracts often have deadlines for filing claims, and some states have short limitation periods for home improvement disputes. The sooner you get legal advice, the more options you have.

Elder Protections — Why Age Matters in a Claim

If you’re 65 or older, many states give you extra leverage:

  • Texas: Under the DTPA, verified elder victims of fraud or misrepresentation may be entitled to triple damages.
  • California: Financial Elder Abuse statutes make it easier to pursue civil penalties against contractors.
  • Florida: Criminal “exploitation of elderly” laws can run alongside civil claims.

These statutes exist because seniors are statistically targeted more often in high-pressure, door-to-door solar sales — and repairing roof leaks on fixed incomes can be financially devastating.

Exceptions & Procedural Barriers You Need to Know

Even in strong cases, some roadblocks can slow you down:

  1. Arbitration Clauses: Buried in many contracts, these force disputes into private arbitration instead of court. Fraud or gross negligence can sometimes void them — but you’ll likely need an attorney’s help to argue it.
  2. Short Warranty Windows: If your workmanship warranty is only 1 year and you call at 18 months, the installer will push back. That’s why early reporting is key.
  3. Proof Problems: You must connect the leak to the installation. That’s easier if you have pre-install roof condition photos, inspection reports, or expert roofer testimony.
  4. Pre-Existing Damage Claims: Installers often argue, “The roof was already failing.” Even if that’s partly true, proceeding without disclosure can still expose them to liability — but it’s a tougher fight.
  5. Licensing Gaps: Some states don’t require solar installers to also be licensed roofers — which can complicate complaints. In other states, working without the right license can make your case stronger.

State‑by‑State Cooling‑Off & Contractor Rules Quick Chart

StateCooling‑Off Period (In‑Home Sales)Licensing Rule for Roof Work in Solar InstallsMinimum Workmanship WarrantyNotable Homeowner Protections
TX3 business daysElectrician license + licensed roofing subContract controlsDTPA triple damages for seniors
CA3 business daysC‑46 solar contractor license, roofing contractor if touching roof1 year min by lawElder abuse civil protections
FL3 business daysSolar contractor license; must follow roofing codesContract controlsFDUPTA, elder exploitation laws
NY3 business daysHome improvement contractor licenseNo statutory minContractor fraud penalties
IL3 business daysRoofing license required for any roof penetrationContract controlsTriple damages in some consumer fraud cases

Every Drop Is Proof: Your Solar Installer May Be Liable

A roof leak isn’t just a nuisance — it’s your home warning you that something went very wrong with your solar installation. Every drip means more damage: warped wood, ruined insulation, mold spreading in silence. And while installers may try to point the finger at “roof age” or “weather,” leaks that line up with their drilling, flashing, or mounting work are often signs of negligence — and negligence has consequences.

At Bennett Legal, we’ve seen too many homeowners left with stained ceilings and five-figure repair bills after trusting installers who promised a “watertight job.” We don’t let those excuses stand. Our team steps in to:

Trace the leak back to the installation work with evidence that holds up legally.

  • Force warranty enforcement or installer liability when companies try to dodge responsibility.
  • Challenge improper workmanship or licensing violations under state contractor laws.
  • Recover damages for water intrusion, mold remediation, and even structural repairs.

Don’t Let a Roof Leak Become a Financial Flood.

📞 Call Bennett Legal today. We’ll fight to hold installers accountable, demand the repairs or compensation you’re owed, and make sure your home is safe and secure again — not one storm away from disaster.


FAQs 

How do I prove my solar panels caused the leak?

Get an independent roofing inspection that documents the exact points of penetration and any sealing or flashing issues. Photos before/after installation are gold in a dispute.

Will my roof warranty be voided by solar?

If the installer wasn’t certified by your roofing manufacturer — possibly yes. Some manufacturers reject warranty claims after non-approved drilling.

Will homeowner’s insurance cover this?

Possibly. Coverage may apply to resulting water damage, but not the actual installation repairs. Your insurer may go after the installer to recover their payout.

What if the installer is out of business?

You can pursue their insurance, performance bond, or the subcontractor who did the work. State licensing boards may also have recovery funds.

How fast should I act after discovering a leak?

Immediately. Delays can sink both warranty claims and legal remedies — and allow damage to spread.

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