Clogged and Leaking Gutters in Fargo-Moorhead: Cleaning, Sealing Joints and Protecting Your Foundation

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Why clogged and leaking gutters matter

Gutters are easy to forget until water pours over the edge in a storm. Their job is simple: catch the water coming off the roof and carry it to downspouts that send it away from the house. When gutters fill with debris or start leaking at the joints, that water lands right next to the foundation instead. Clogged and leaking gutters are among the most common findings on a home inspection, and both are usually simple, inexpensive fixes.

This guide explains why gutters clog and leak in Fargo-Moorhead, what to look for, what it means when we find these issues during an inspection, and how to clean gutters and seal leaky joints.

Why gutter problems matter in the Red River Valley

Water near the foundation is a bigger concern here than in many places. Much of Fargo-Moorhead sits on expansive clay that swells when wet and shrinks as it dries. That movement puts pressure on basement walls and slabs, as we explain in How Clay Soils Affect Foundations in the Red River Valley and Why Foundations Move in Fargo-Moorhead.

The building code recognizes this. In areas with expansive or collapsible soils, the International Residential Code (Section R801.3) requires a controlled way to collect roof water and discharge it at least 5 feet from the foundation walls, or into an approved drainage system. A gutter that overflows or drips at a seam defeats that system, because the water never reaches the downspout.

Our seasons add to the load. Leaves and seeds fill gutters in the fall, spring snowmelt sends a lot of water off the roof at once, and summer storms can drop heavy rain in a short time.

Signs your gutters are clogged

  • Water spilling over the front or back edge of the gutter during rain.
  • Plants, moss or seedlings growing in the gutter.
  • Gutters sagging or pulling away from the fascia under the weight of wet debris.
  • Little or no water coming out of a downspout during a steady rain.
  • Stains, peeling paint or washed-out soil and mulch below the gutter line.
  • Ice building up in the gutters in winter.

Signs of leaking gutter joints

Most gutters have joints at the corners, end caps and downspout outlets, and sectional gutters also have seams along their length. These joints are sealed, and over time the sealant can crack, shrink or let go. Look for:

  • Drips or streams of water from a seam or corner during rain.
  • Dark streaks or staining on the outside face of the gutter below a joint.
  • Rust or corrosion around fasteners and seams on steel gutters.
  • Water staining, peeling paint or rot on the fascia and soffit behind a joint.
  • Old roof cement smeared on a seam, which the U.S. General Services Administration notes may be hiding a leak that was never properly repaired.

What it means in an inspection report

When we find debris in the gutters during an inspection, the comment notes that debris has accumulated and recommends cleaning the gutters so water can flow freely to the downspouts. When we see gutters leaking at the joints, we recommend having the joints sealed.

Neither finding is usually serious by itself. What matters is where the water goes. Over time, water spilling or dripping next to the house can soak the soil against the foundation, wet the basement walls, wash out landscaping and stain or rot trim. Fixing the gutters is one of the least expensive ways to protect the rest of the house.

How to clean gutters safely

The U.S. General Services Administration recommends cleaning gutters at least twice a year, once in late fall and once in late spring, and more often when large trees overhang the roof.

  1. Start with safety. Use a sturdy ladder on firm, level ground and have someone hold it. Stay off wet or steep roofs. Keep the ladder and yourself well away from overhead power lines. If you are not comfortable working at height, hire a gutter cleaning service.
  2. Scoop out the debris. Wear gloves and work from the downspout end. Bag the debris rather than dumping it next to the foundation.
  3. Flush with a garden hose. Run water through each gutter and watch for overflow, drips at the seams and standing water that points to sagging sections.
  4. Clear the downspouts. If water backs up, the downspout is likely blocked. The GSA suggests removing a lower section and flushing it out, rather than pushing the clog further down the line.
  5. Check where the water ends up. Downspout extensions should carry water well away from the house. Our post Before the Next Heavy Rain: A Quick Thing to Check Around Your Home covers what to look for.

How to fix leaking gutter joints

Most leaking joints can be resealed:

  1. Wait for a dry day and let the gutter dry out.
  2. Remove old, loose sealant and debris from the seam with a putty knife and wire brush.
  3. Clean the area so the new sealant can bond. Gutter sealant manufacturers call for a surface that is clean and free of anything that could prevent adhesion.
  4. Apply a gutter sealant made for the gutter material along the inside of the seam, following the product’s instructions for temperature and cure time.
  5. Test with a hose once the sealant has cured.

If the seam is corroded, the end cap is loose, or a section is bent or split, sealing may not hold. A gutter contractor can replace the damaged section or corner. Sagging gutters often need hangers reset or added so water does not pool at the joints.

How to prevent problems

  • Clean on a schedule. Late fall after the leaves drop and late spring are the key times here.
  • Check after big storms. The GSA also recommends checking gutters after severe weather.
  • Consider gutter guards if trees overhang the roof. They can reduce how often you clean, but they still need to be checked and cleared.
  • Keep extensions in place. Mowers and snow removal can knock downspout extensions loose. Put them back right away, and in winter see our tips on preventing frozen sump pump discharge lines.
  • Address ice dams at the source. University of Minnesota Extension explains that ice dams form when uneven roof temperatures, mostly from heat escaping into the attic, melt snow that refreezes at the colder roof edge. Clean gutters will not stop ice dams on their own. Our guide to Attic Ventilation in Fargo-Moorhead explains the long-term fix.
  • Add a fall check. Our Nordic Fall Home Checkup includes the roof drainage system along with other items worth looking at before winter.

Clogged and leaking gutters: common questions

How often should gutters be cleaned in Fargo-Moorhead?

At least twice a year, in late fall and late spring. Homes with large trees nearby may need more frequent cleaning, especially during leaf drop.

Can clogged gutters cause basement water?

They can contribute to it. Water that spills over a clogged gutter lands next to the foundation instead of being carried away, which can wet the soil and basement walls. In clay soils, repeated wetting and drying also adds to foundation movement.

Can I seal a leaking gutter joint myself?

Often, yes, if you can work safely from a ladder. Clean and dry the seam, remove the old sealant, and apply a gutter sealant made for your gutter material. If the joint is corroded or the gutter is damaged, call a gutter contractor.

Do gutter guards eliminate cleaning?

No. Guards reduce the amount of debris that gets in, but seeds, needles and roof grit can still build up on or under them. Check them at least once or twice a year.

Do gutters cause ice dams?

Ice dams are caused by uneven roof temperatures, mostly from heat escaping into the attic. Gutters do not cause them, but gutters packed with debris or ice cannot drain meltwater from the roof edge.

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