Waterproofing in Boston: what to know
Boston winters are cold and snowy, with nor'easters that bring heavy snow and wind. Triple-deckers, brownstones and very old homes are common, often with aging plumbing, knob-and-tube wiring or ice-dam-prone roofs.
- Snowmelt and spring thaws push water into basements through cracks and wall joints.
- Older stone and block foundations often need interior drainage and a sump pump to stay dry.
How much does waterproofing cost?
- Basement waterproofing: $3,150 – $10,600
- Sump pump installation: $850 – $2,100
- Sump pump repair: $160 – $530
Estimate only. Typical price ranges based on public US cost data, adjusted by state. Your actual quote comes directly from the pro and depends on your home and the job.
Get a quote from a local pro →How it works
Where is water entering, when does it happen, and has the area been repaired before? Describe the problem, add your ZIP code and when you need help, and we look for an available local professional in the Boston area. The request takes about 2 minutes, is free, and your address stays private until a professional is assigned.
Frequently asked questions
Do I need a permit for waterproofing work in Boston?
Interior sealing usually does not need a permit, but excavation, new drains or sump pump discharge lines may. In Boston, permits are typically handled by the Boston Inspectional Services Department (ISD). Rules change, so confirm with them before work starts.
Which parts of Boston do you cover?
Requests are accepted from anywhere in the Boston area, including Back Bay, Dorchester, South Boston, Jamaica Plain and Charlestown. Availability depends on local professionals in your ZIP code.
How much does waterproofing cost in Boston?
Typical price ranges for Massachusetts are shown in the cost estimate above. The final price depends on the job, materials and access, and the professional gives you a quote before any work begins. Sending a request is free.