Interior Basement Waterproofing in Newton, MA

Stopping Basement Water in Newton From Inside

Water gets collected at the footing and pumped out before it reaches the floor

An interior waterproofing system in Newton works on water that has already reached the foundation. We cut a channel along the inside perimeter of the basement floor, lay a perforated drain at the footing and run it to a sealed sump pit. The pump sends the water out through a discharge line to the yard, not into a sink or the city sewer. Owner Diego Tameirao (link → /about-us/) brings 25+ years to every Newton job and personally supervises each one. The company is rated 5.0 stars on Google.

Step by Step

Three Stages of an Interior Drain Job

From the first cut in the floor to the last patch

Opening Up the Floor Edge

We cut a narrow strip of the slab along the walls and dig down to the footing. The rest of the floor stays in place for the whole job.

Setting the Drain and Sump

Perforated pipe goes in at the footing, pitched toward a sealed sump pit at the low point. This is the part that actually moves water.

Closing Up and Piping Out

The trench is filled with stone and new concrete. The discharge line runs outside and points away from the house, never at the sewer.

Newton Buried Some of Its Brooks

Water that once ran on the surface still moves under plenty of Newton streets

Cheesecake Brook was filled, straightened and channelized through the 1800s and 1900s. Today it runs in a culvert beneath the Mass Pike before it surfaces in a masonry channel on its way to the Charles River. In 1937, WPA crews built masonry walls along a mile and a quarter of it and 830 feet of Laundry Brook to stop the damage from spring floods.

Some of what a Newton buyer inherits sits in the basement. When the city inspected about 12,000 homes for illegal sewer hookups, it found roughly 400 sump pumps emptying into a sink or sewer drain, and most owners had no idea. In 2011, officials said that extra water could account for up to 60% of what households paid on water and sewer bills.

25+ Years Experience

5.0 Google Rated in MA

Fully Licensed & Insured

Quality Craftsmanship

When It Makes Sense to Waterproof Inside

Most Newton homeowners call us at one of three points, and each is a good time

Before You Finish the Space

Drywall, carpet and framing on a slab that takes on water will fail sooner or later. Putting the drain in first means the finished room sits on a floor that stays dry through the wet months.

When an Inspection Flags It

Water stains, white mineral crust on the walls or a sump pump piped into a sink all show up in home inspection reports. It is a lot easier to sort out before the moving boxes come in.

After the First Wet Spring

Snowmelt and spring rain push groundwater to its highest point of the year. If the floor gets damp in April and dries out by July, the water is coming back, and next spring will be no different.

Let's Take a Look at Your Newton Basement

Whether the floor gets wet every spring or you just found a pump tied into the laundry sink, we’ll walk the basement with you, show you where the water is coming from and explain what fixing it involves. For a feel for pricing first, check our basement waterproofing costs in Massachusetts.