Steps to save money when maintaining or repairing a seawall:

Perform a thorough inspection: Before you begin making repairs, it is important to understand the full extent of the damage to your seawall. This will help you determine what repairs are necessary and how much they are likely to cost.
Prioritize repairs: Based on the inspection, prioritize the repairs that need to be made and address the most critical issues first. This will help you avoid unnecessary expenses and keep the repair process manageable.
Consider DIY repairs: Some smaller repairs, such as patching cracks or filling gaps, may be able to be done by a handy homeowner. However, if you are unsure of your ability to perform the repairs, it may be best to leave it to the professionals.
Shop around for contractors: When you are ready to hire a professional, get quotes from several contractors to compare costs. Make sure to choose a contractor who is experienced in seawall repair and has a good reputation.
Use durable materials: When making repairs, consider using high-quality, durable materials that will last for many years. This will reduce the need for future repairs and save you money in the long run.
Take preventative measures: Finally, to help prevent future damage to your seawall, consider taking preventative measures such as planting vegetation around the base of the wall or installing wave deflectors. This will help reduce soil erosion and protect the structure from damage.