I get calls from Fort Collins homeowners all the time who have already tried to fix their window well problem before reaching out. Sometimes they solved it. More often, they put a temporary patch on something that needed a real repair, and now the problem is worse than when they started. That is not a knock on anyone. Window wells look simple from the outside, and some issues genuinely are straightforward to handle yourself. The trouble is knowing which category you are dealing with before you start.
This breakdown is meant to help you make that call with confidence.
What You Can Reasonably Handle Yourself
There is a category of window well maintenance that requires no special tools, no excavation experience, and no contractor license. If your problem falls here, save yourself the service call and handle it on a weekend afternoon.
Clearing debris and refreshing gravel
Leaves, mulch, and compacted dirt are behind a surprising number of window well drainage complaints. The fix is exactly what it sounds like: remove the material by hand or shop vac, dig out any muddy or compacted gravel at the base, and replace it with clean drainage stone. You want roughly 10 to 12 inches of coarse, washed gravel at the bottom, not fine sand and not bark mulch, both of which pack tight and defeat the purpose. This takes an hour or two and costs almost nothing.
Resealing around the window frame
If you are seeing moisture around the window frame itself but the well structure looks intact, the culprit is often failed caulk. Exterior-grade polyurethane or silicone sealant applied to a clean, dry surface handles this reliably. Scrape out the old caulk completely before applying new material. Half the DIY caulk jobs we see fail because someone applied new caulk on top of old caulk and wondered why it did not hold.
Installing a cover
No cover on your window well is one of the most common and most fixable problems we see. A properly fitted polycarbonate or metal cover keeps rain, debris, and wildlife out of the well. Most covers for standard well sizes are available at home improvement stores, and installation is a matter of measuring correctly and securing the cover to the well rim. If your well is a non-standard size, that is when custom becomes worth the conversation.
Correcting the soil grade around the well
If the ground around your foundation slopes toward the well rather than away from it, surface water follows that slope directly into your window well every time it rains. Regrading the immediate area with a shovel and some additional topsoil, so the ground pitches away from the foundation, can reduce pooling significantly without touching the well itself.
When the Job Needs a Professional
The DIY category above has clear limits. Once you cross into structural territory, the calculus changes.
Rusted, warped, or separated liners
A metal well that has rusted through, buckled, or pulled away from the foundation wall is not a sealing problem. The structure itself has failed. Applying caulk or a liner insert over a well in this condition traps moisture behind the new material and accelerates the deterioration you are trying to stop. This requires the old well to come out and a properly anchored replacement to go in, with attention to what caused the failure in the first place, whether that is electrolytic corrosion from foundation contact, poor drainage, or installation shortcuts.
Foundation wall cracks near the well
Cracks in the concrete or masonry around the window opening are not a surface issue. Water bubbling up through the floor or seeping through a crack in the foundation wall is a structural problem. DIY crack fillers provide cosmetic coverage but do not address the hydrostatic pressure or soil movement driving the crack. This category requires professional assessment before any repair work begins.
Drainage failure that gravel replacement does not fix
If you have cleared the debris, replaced the gravel, and water is still pooling after every rain event, the drainage system itself has failed or was never adequate to begin with. Fixing this properly means excavating to the foundation footing, installing a drain pipe, and tying it into the home’s perimeter drain or sump system. That is real excavation work with real consequences if it is done wrong, and it is not a good candidate for a weekend project.
Egress conversions
Converting a standard basement window to a code-compliant egress well involves cutting through the concrete foundation wall to enlarge the opening. This requires permits, specific code dimensions, structural knowledge, and in most cases, engineered specifications. The consequences of getting it wrong range from a failed inspection to a compromised foundation wall. This one is always a professional job.
The Gray Area: When to Get an Assessment Before Deciding
There is a middle zone that homeowners often misjudge in both directions. Some people call us for something they could handle themselves and do not need to spend money on. Others convince themselves that a visible rust spot or minor gap is cosmetic when the exterior side of that well, hidden against the soil, has been deteriorating for two seasons.
If you are not sure which category you are in, a professional assessment answers the question without committing you to a repair. We can tell you within a few minutes whether the issue is something you can manage or whether there is underlying damage that needs to be addressed before it compounds.
The things worth paying attention to before you decide: how long the problem has been present, whether you are seeing any moisture inside the basement near the window, and whether the well has shifted visibly from its original position. Any of those details point toward professional evaluation rather than DIY.
Frequently Asked Questions
Is it worth repairing an old window well or should I just replace it?
It depends on the well’s structural condition, not its age. A well that is properly anchored, not showing through-rust, and still sealed to the foundation can often be repaired effectively. One that is separating from the wall, has corroded through, or was improperly installed to begin with usually costs less over time to replace than to repeatedly repair. We can tell you which situation you are in after a quick look.
Can I use expanding foam to fill gaps between the well and the foundation?
Expanding foam is not a reliable solution for this gap. It does not bond well to metal or damp concrete surfaces; it breaks down over time, and it does not handle the soil movement and freeze-thaw cycling that Colorado puts that joint through every year. Exterior-grade sealant or a compressed gasket system is the correct approach for minor gaps. Major separation requires mechanical anchoring, not a fill material.
What happens if I ignore a rusted well and just paint over it?
Paint slows surface oxidation slightly but does nothing to address rust that has already penetrated the metal. The corrosion continues underneath, and by the time the painted surface starts bubbling or flaking, the structural integrity of the well may already be significantly compromised. In Colorado, a rusted well going into winter is a particular concern because freeze-thaw cycles accelerate structural failure in already-weakened metal.
How do I know if my window well has a drain?
Clear the gravel from the base of the well and look for a grate or pipe opening. If you see only compacted soil with no drain, your well is relying on soil absorption alone. In Fort Collins’s clay-heavy soil, that is often not sufficient, especially during heavy rain or snowmelt. A drain can be installed as part of a repair.
Do I need a permit to repair a window well in Fort Collins?
Routine repairs, replacing gravel, resealing, swapping a like-for-like well, typically do not require a permit. Work that involves modifying the window opening, cutting into the foundation, or converting to an egress window does. When in doubt, we can help you determine what your specific scope requires before work begins.
Not Sure Which Side of the Line You’re on?
Some window well problems are genuinely a Saturday afternoon job. Others look manageable until you pull back the surface and find something that has been getting worse for two seasons without anyone noticing. The cost difference between catching a problem at the DIY stage versus calling us after a basement flood is significant.
Window Well Solutions serves homeowners throughout Fort Collins and nearby service areas, including Severance, Longmont, Thornton, Wellington, Loveland, Berthoud, Broomfield, Johnstown, Westminster, Brighton, and Denver, with honest assessments and repairs that address the root cause, not just the symptom. If you are not sure what you are dealing with, let us take a look before you commit to an approach.
Contact Window Well Solutions today for a free estimate and find out exactly what your window well repair involves.