Repair vs. Replace: The Honest Answer
Nobody wants to hear that they need a new roof. Repairs sound better -- cheaper, faster, less disruptive. And sometimes a repair is genuinely the right call. But other times, repairing a failing roof is like putting a new paint job on a car with a blown engine. It looks okay for a minute, but it does not fix the problem.
Here are the five signs that your roof has crossed the line from repairable to replaceable.
1. Your Roof Is 20+ Years Old
The average asphalt shingle roof in St. Louis lasts 20-25 years with standard 3-tab shingles and 25-35 years with architectural shingles. If your roof is approaching or past that window and showing any signs of wear, a repair is just buying time. The entire system is at the end of its life cycle, and failure will accelerate from here.
2. Multiple Active Leaks
One leak, isolated to a specific area, might be repairable. But if you are seeing water intrusion in multiple locations, the underlying system -- shingles, underlayment, or flashing -- has failed systemically. Patching individual spots does not address the root cause.
3. Widespread Granule Loss
Check your gutters. If they are full of shingle granules -- those rough, sand-like particles -- your shingles are losing their protective coating. Granule loss exposes the asphalt to UV radiation, which accelerates deterioration. Once granule loss is widespread, the shingles have months, not years, of effective life left.
4. Sagging or Structural Deflection
If your roofline is not straight -- if you can see dips, waves, or sags when you look at it from the street -- you likely have decking damage. This could be from prolonged moisture exposure, inadequate support, or rot. A new layer of shingles on bad decking is a waste of money. The structure needs to be addressed.
5. Daylight Through the Roof Boards
Go into your attic on a sunny day and look up. If you can see points of light coming through the roof boards, water can get through those same gaps. Scattered light penetration across the deck means the entire system has deteriorated beyond what a repair can fix.
The Cost of Waiting
Delaying a necessary replacement does not save money. It costs more. Water damage to your decking, insulation, drywall, and framing adds up fast. A $12,000 roof replacement becomes a $20,000 project when the decking is rotted and the interior is water-damaged.
If you are seeing any of these signs, schedule a free inspection. We will give you an honest assessment -- and if a repair makes sense, we will tell you that too.