Newmarket Basement Pros
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Wet Basement Repair in Newmarket

Standing water in the basement? Damp drywall? Musty smell that won't go away? We diagnose what's actually leaking and fix it - not just hide the symptoms.

  • Free on-site inspection
  • Diagnose first, fix second
  • Real cost upfront
  • Lifetime workmanship warranty
Call (289) 212-5404 Get Free Quote

The five most common sources of a wet basement

Before we recommend any work, we figure out where the water is actually coming from. Treating the wrong source is the fastest way to spend a lot of money and still have a wet basement.

1. Surface water that's not draining away from the foundation

Downspouts dumping water at the foundation. Gutters overflowing. Negative grade (yard sloping toward the house instead of away). This is the cheapest fix and the most commonly missed cause. Sometimes you don't need any waterproofing - you need an extension on a downspout and a wheelbarrow of fill dirt.

2. A leaking foundation crack

Active water seeping through a single crack or small group of cracks in the foundation wall. Polyurethane injection is usually all you need. $400-$900, 1-2 hours of work.

3. Window well drainage failure

Window wells fill with water during heavy rain and the water seeps through the window frame or the surrounding foundation. Often the well drain is clogged or never existed. Window well repair handles this.

4. Sump pump failure or undersizing

Pump dies, gets unplugged, or just can't keep up with the water volume. The basement floods even though the system existed. Sump pump replacement with a battery backup is the answer here.

5. Failed weeping tile or hydrostatic pressure

Original weeping tile (the perimeter drainage pipe around the foundation) has clogged or collapsed at the 30-50 year mark. Water that should drain away builds up against the foundation and pushes through. Interior waterproofing or exterior waterproofing fixes this.

What to do if your basement is taking water

  1. Don't touch electricity in standing water. If outlets, extension cords, or the sump pump are submerged, kill power to that part of the house at the panel before doing anything else.
  2. Move valuables and electronics to higher ground. Furniture, boxes, kids' toys - anything you don't want ruined.
  3. Find the source if you can. Is water coming from one specific spot? A wall? The floor? A pipe? Photos help with remote diagnosis.
  4. Use a wet/dry vacuum or bucket for small amounts of water. For large amounts, contain (towels at thresholds) while you call your insurance and a contractor.
  5. Schedule an inspection. Once the immediate water is contained, book the on-site visit so the source can be properly diagnosed and a permanent fix planned.

The diagnostic visit

We come on-site, walk through the basement with you, look at the outside grading and downspouts, check the sump pump, and identify the actual source. We give you a written estimate before any work happens. If it's a $400 fix, we'll tell you it's a $400 fix. If it's a $12,000 system, we'll explain why and give you the cheaper alternatives so you can decide.

The visit itself is free. The estimate is free. There is no obligation to hire us.

Call (289) 212-5404

Free on-site inspection. Honest quote.

We come out, look at the actual problem, and give you a written quote in plain language. You decide if and when to move forward.

Call (289) 212-5404

Frequently Asked Questions

What does a wet basement actually mean?
Any visible water, persistent dampness, or moisture migration through the foundation walls or floor. It can show up as standing water, damp patches, white efflorescence on concrete, peeling paint at the bottom of walls, or a musty smell. The cause can be one of several different things, which is why diagnosis matters before any work.
Why is my basement wet only sometimes?
Intermittent leaks usually mean the water source is weather-dependent. Common patterns: only after heavy rain (downspout or grading issue), only during spring thaw (hydrostatic pressure peaks when soil is saturated), only during summer storms (sump pump capacity issue). Pattern recognition helps us diagnose faster.
Is a damp basement actually a problem?
Yes. Even chronic dampness without visible water causes mould growth, rotting wood, damaged insulation, and respiratory issues for occupants. It also signals that more serious water intrusion is on the way. The cost to fix dampness early is much lower than addressing it after drywall and finishes are damaged.
How does the inspection process work?
You contact us. We schedule a free 30-45 minute on-site visit at a time that works for you. We walk through the basement, check the outside grading and downspouts, look at the sump pump if you have one, and identify the actual water source. You get a written quote in plain language. No pressure, no obligation.
What is your guarantee?
Lifetime workmanship warranty on all our repairs. If the leak we fixed comes back, we come back. The warranty is transferable to the next homeowner if you sell, which is meaningful when you are listing the property.