CONCRETE TILE
Tile Valley and Hip Flashing Replaced
Before: a concrete tile roof with lifted tiles exposing worn valley and hip flashing. After: new metal flashing installed, photographed with the tile staged before it was re-laid.
Roof Leak Repair
A leak is a symptom, not the problem. Roof Doctors finds the source of the leak and fixes it at the root, from failed flashing to worn underlayment. A licensed and liability insured contractor since 1987, with written estimates, no advance deposit, and direct insurance handling.
1987
Repairing roofs since
14
Insurance carriers
1-Year
Workmanship warranty
Repair or Replace a Leaking Roof
Most leaks are localized and repairable. A new roof is only warranted when the leak points to systemic failure. Here is how we decide.
Repair
The right call when the leak has a fixable source
- The leak traces to a localized source: flashing, a valley, a vent, or a skylight
- The surrounding roof is sound with meaningful service life left
- Underlayment and decking are intact outside the affected area
- Lower cost, faster turnaround, and less disruption
Replacement
The right call when leaks are systemic or the roof is worn out
- Repeated leaks across multiple areas of the roof
- Underlayment or decking is compromised throughout
- The roof is at the end of its service life
- See our Roof Replacement service for full re-roofing
Signs of a Roof Leak
Leaks often show up inside long before you see anything on the roof. Catching these early keeps a small repair from turning into structural damage.
Ceiling and wall stains
Brown or yellow water rings on ceilings or walls point to moisture traveling from a roof leak above.
Active drips in rain
Water dripping during or after rain is a live leak that needs the source found and sealed.
A damp attic
Darkened roof decking or wet, matted insulation in the attic reveals a leak before it reaches the ceiling.
Musty smell or mold
A musty odor or mold spotting in a corner signals chronic moisture intrusion from above.
Bubbling paint
Bubbling or blistering paint below the roofline means water is collecting behind the wall or ceiling.
Missing or lifted shingles
Gaps where shingles are missing or lifted expose the underlayment and let water enter.
Common Leak Sources We Fix
Roof leaks almost always start at a joint, a penetration, or a low spot. These are the sources we trace and repair.
Flashing
Flashing is the metal that seals joints at chimneys, walls, and edges. Rusted or lifted flashing is the most common leak source.
Valleys
Valleys channel heavy runoff where two roof planes meet. Worn valley metal or underlayment lets water push under the shingles.
Vents & Penetrations
Pipe boots and vent collars crack and dry out over time, opening a direct path for water around the penetration.
Skylights
Failed skylight flashing and perished seals let water track along the frame and into the ceiling below.
Ponding Water
Standing water on flat and low-slope roofs works its way through seams and membrane defects over time.
Underlayment
The underlayment is the last water barrier beneath the surface. Once it degrades, even minor surface gaps begin to leak.
Related Repair Services
Leaks connect to the wider repair picture. Explore the parent service and related repairs.
Roof Repair
The parent service: all roof repair types in one place.
Storm Damage Repair
Wind, hail, and heavy rain are frequent causes of sudden leaks.
Dry Rot Repair
Chronic leaks lead to rot in decking, fascia, and structure.
Flat & Low-Slope (TPO) Roofing
Flat-roof and ponding-water leaks and TPO membrane repair.
Roof Replacement
When leaks are systemic, full re-roofing is the answer.
Residential Roof Leak Repair
Leak diagnosis and repair for every housing type, from bungalows to modern tract homes. We find the source, seal it, and protect your interior from further water damage.
Residential Roofing
Commercial Roof Leak Repair
Flat and low-slope commercial roofs leak at seams, drains, and ponding low spots. We locate membrane and seam failures, repair them, and coordinate insurance with minimal disruption to your operations.
Commercial RoofingOrder a Roof Inspection
Two intake paths. Both connect you with a licensed inspector within 1 to 2 business days to trace the leak to its source.
Homeowners
Homeowner Inspection
Seeing a stain, a drip, or a damp ceiling? Request a roof inspection and a knowledgeable technician will locate the leak source and provide a written estimate.
Realtors
Realtor Inspection
Managing a transaction with a suspected leak? Ask about our roof certification for real estate, documenting the roof and any moisture issues for buyers and sellers.
How Much Does Roof Leak Repair Cost?
The cost to repair a leaking roof depends on the source, how many areas are affected, access, and whether water has reached the decking.
Minor, Single-Source Leak
$600-$1,700
One localized source such as a cracked pipe boot, a single flashing reseal, or a few missing shingles.
Moderate, Multi-Source or Flashing
$1,700-$3,400
Multiple leak points, valley or chimney flashing rework, or underlayment repair in the affected area.
Major, Structural or Decking
$3,500-$12,000+
Water-damaged decking, extensive flashing systems, or repairs that qualify for an insurance claim.
Our Leak Repair Process
Finding the source is the whole job. We respond promptly and schedule inspections within 1 to 2 business days.
1
Inspect and Diagnose the Source
A licensed inspector traces the leak to its true source, checking flashing, valleys, penetrations, skylights, and underlayment, not just the visible stain.
2
Document
We photograph the source and the interior damage, then provide a no-obligation written estimate detailing scope, materials, timeline, and warranty. No advance deposit.
3
Repair
Trained crews repair the source, from resealing flashing to replacing boots, underlayment, or damaged decking, with daily site cleanup.
4
Water-Test
We verify the repair holds by testing the affected area, confirming the leak is sealed before we close out the job.
5
Warranty and Walkthrough
A final inspection, warranty registration, and documentation handoff, including our optional roof leak certification.
Why Property Owners Choose Roof Doctors
Decades of leak-diagnosis expertise, backed by real warranties and honest assessments.
1987
Repairing roofs since
14
Insurance carriers
1-Year
Workmanship warranty
4.7
Google rating
We find the source, not just the stain
We trace the leak to its root cause and fix it there, so the same leak does not return after the next rain.
No advance deposit
You pay after the work is completed to your satisfaction. No deposit required to schedule, and a written estimate every time.
Licensed and liability insured
A fully licensed roofing contractor with General Liability Insurance on every project.
Recent Roof Leak Projects
Documented before-and-after results from recent leak repairs. Drag the slider to compare the before and after.
Financing Available
Financing is available on qualifying roofing projects through our lending partners. Ask your inspector about current options.
Warranty Protection
Every Roof Doctors leak repair is backed by layered warranty coverage.
1 Year
Workmanship Warranty
Labor and materials on every repair
Covers the quality of our installation and workmanship on all completed leak repairs.
2 Years
Roof Leak Certification
Optional purchasable certification
A purchasable 2-year certification, especially relevant for leaks. A $75 service fee applies per reported leak, and any covered repair is completed at no additional charge.
Optional add-on. Not available on roof replacements.
Manufacturer (GAF Silver Pledge)
Applies to roof replacements
GAF Silver Pledge manufacturer coverage applies to full roof replacements, not to repairs.
Sudden Leaks and Insurance Claims
We Handle Your Insurance Claim
A sudden, accidental leak from storm, wind, or falling-debris damage may be covered by your homeowners insurance, while leaks from gradual wear and tear generally are not. Roof Doctors documents the damage, works directly with your adjuster, and processes claims within the Xactimate and Symbility estimating platforms.
Areas We Serve
Roof Doctors serves communities across California. Find your area or view the full directory.
What Our Customers Say
★★★★★
4.7 out of 5 across Roof Doctors' Google Business Profiles
★★★★★
“Prompt, very informative, and honest. Bill inspected my roof. No leaks. End of story. They had certified my roof a year prior. I am very satisfied with the level of service.”
EG
Eddie Gomez
★★★★★
“Showed up quickly during a storm, figured out problem, provided a solution.”
AL
April L.
★★★★★
“Troy was informative and professional. Would recommend to other home owners.”
MG
Ms. Gibson
Roof Leak Repair: Frequently Asked Questions
How much will it cost to repair a leaking roof?
It depends on the source of the leak, how many areas are affected, and whether water has reached the decking. A minor single-source leak such as a cracked pipe boot is the least expensive, while structural or multi-source leaks cost more. Every repair is priced from an on-site inspection and written estimate, with no advance deposit.
Can you fix a leaky roof yourself?
A temporary patch may slow a drip, but a lasting fix requires tracing the leak to its true source, which is often several feet from where the water shows up inside. A misdiagnosed repair leaves the real source leaking and lets water reach the decking and structure. A licensed inspection finds and fixes the actual source.
How expensive is it to fix a roof leak?
Simple leaks fixed at a single source are relatively inexpensive. Cost rises when multiple sources, flashing systems, or water-damaged decking are involved. Because pricing follows the diagnosis, we provide a written estimate from an on-site inspection rather than a phone quote, and we never require an advance deposit.
Is roof leak repair covered by insurance?
It depends on the cause. A sudden, accidental leak from storm, wind, or falling-debris damage is often covered by homeowners insurance, while leaks from gradual wear and tear generally are not. We document the damage, work directly with your adjuster, and process claims within the Xactimate and Symbility platforms with 14 major carriers.
Should I repair or replace a leaking roof?
If the leak traces to a localized source and the surrounding roof is sound, a repair is the right call. Repeated leaks across multiple areas, or a roof at the end of its life, point to replacement. We recommend the repair-first path whenever it is appropriate.
Do you require a deposit?
No. Roof Doctors does not require an advance deposit. You pay after the leak repair is completed to your satisfaction.
Do you offer a price guarantee?
Yes, on roof repairs. Bring us a licensed roofing contractor's written, detailed repair estimate for the same scope of work and we will beat it. The Best Price Guarantee applies to roof repairs only, not to roof replacements, the roof certification fee, or insurance-claim settlement amounts.
What warranty comes with a leak repair?
Every leak repair includes a 1-year workmanship warranty. An optional 2-year roof leak certification is also available, with a $75 service fee per reported leak and any covered repair completed at no additional charge.
Schedule Your Roof Inspection
A licensed inspector will trace the leak to its source, document the damage, and provide a written estimate. No obligation, no advance deposit.
Licensed and Liability InsuredNo DepositWritten Estimate1-Year Workmanship Warranty