A box or built-in gutter is part of the roof edge instead of hanging from it. It's lined with metal or a rubber membrane, and when that liner or an outlet fails, water goes into the fascia and framing instead of the downspout. Damage is hidden until it shows up as stained ceilings or soft wood. The repair finds the failed spot, replaces the liner or outlet, checks the wood behind it, and re-tests the run with water.
Cost & Scope
Box gutter repairs typically run $400 to $3,000 depending on the length affected and how much wood behind it has to be replaced. A single failed outlet sits at the low end; a full re-lining sits near the top.
If the roof edge is failing, some of the work belongs to a roofer. We'd say which part is which in the estimate.
Cost Range
$400 – $3,000
Timeframe
1–3 Days
Warranty
1-Year Warranty
Get a Free Box & Built-In Gutter Repair Estimate
Written, in-person, no obligation.
Important Considerations
What shapes a box gutter repair:
- Liner type — metal and rubber liners fail in different ways and need different repairs.
- Outlets — most leaks start where the gutter meets the downspout.
- Hidden damage — wood behind a leaking liner is often soft and has to be replaced.
- Roofer overlap — some repairs involve the roof covering, which a roofer handles.
Ready to See This Done Right?
Free written estimate, no pressure.
Materials We Use
Materials for a repair:
Rubber (EPDM) or metal liner material
Replacement outlets
Sealant and flashing
Replacement fascia or sheathing
Stainless or coated fasteners
Our Process
A five-step repair:
- 01
Water Test
Water is run through the gutter to find every leak and where it goes.
- 02
Open & Inspect
Failed liner or outlet exposed and the wood behind it probed.
- 03
Repair Wood
Soft fascia or sheathing replaced.
- 04
Re-Line or Re-Seal
New liner, outlet, or sealant installed.
- 05
Retest
Water run again to confirm the gutter holds.
Get Your Project Scheduled
How to Choose a Provider
What to check:
Built-In Experience
Ask if the installer has repaired built-in gutters before, not only hung new ones.
Honest Scope
The estimate should separate gutter work from roof work.
Wood Plan
Ask what happens if rot turns up behind the liner.
Guarantee & Support
Written Workmanship Warranty
Every project is backed by a workmanship warranty in writing. If a seam leaks or a section pulls away from application error within the term, the installer comes back at no charge.
Licensed & Insured
Every installer in our network carries liability and workers' comp coverage, verified before they're matched with a homeowner. Details are available on request before you book.
Fixed Written Estimate
The number in your estimate is the number you pay, unless you change the scope yourself mid-project.
Daily Site Cleanup
Old gutter sections, cut-offs, and fasteners hauled away before the crew leaves, every day of the project and not just the last one.
Why Choose Gutters Kingdom
A leaking box gutter is a structural problem, not a cosmetic one. A quick sealant patch over a failed liner hides the leak for a season and leaves the rot to grow. We scope the wood behind the liner first.
- Water-tested to find every leak
- Wood behind the liner probed before quoting
- Gutter work and roof work separated in the estimate
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Areas We Serve
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