Drainage Problems in Concord

Drainage Issues in Concord show up as water getting into your home or building, and can cause basement flooding, wet crawlspaces, mold, landslides, mud in the yard, and flooding or pooling of water in the yard.  Driveway drainage problems in Concord may include water getting into the garage, into the home, and unwanted puddles on the concrete driveway.  If you notice signs of drainage problems in your Concord property, we will be pleased to come take a look at it, with no cost or obligation.  Just give us a call at (510) 215-3636 to set up a free inspection.

Drainage Contractors

Drainage construction in Concord often involves drainage design in order to protect basement from flooding, dry out wet crawlspaces, avoid mud slide, protect retaining wall,  and stop the yard from flooding.  Water under a house or home can be very damaging, causing mold, bad smells, mildew, and dry rot. Drain repair and drainage repair may involve installation of French drain or French drains, and sometimes it is necessary to install sub drains, and a catch basin and sump pump to divert water from low areas under a home.   Rain water and storm water should run off the roof through gutters and downspouts, onto concrete tile or through grates then into the French drain, through piping and find it’s way to appropriate storm drains.

As competent drainage contractors we offer a free inspection in Concord, provide advice on drainage design, provide an estimate or bid for your drainage job, perform the work quickly and efficiently, with minimum intrusion on your lifestyle.  Most drainage problems are too much for the do it yourself project.  They often involve structural design, concrete pour into wood forms, underground drainage, and more.

Actual drainage job completed in Concord:

Here is one of many examples of a drainage construction project we completed on Via Montanas in Concord:

We will do the following work along the right side of your home and garage:

  1. Remove and replace a strip of concrete as necessary and install a drainage system along the entire right and a 10 feet portion of the rear side of your garage.

The drainage system consists of two pipes in a rock filled trench.  One is perforated, to collect sub-surface water and the other is non-perforated, to collect water from the roof downspouts.  At the upper end or start of the perforated pipe, a clean-out will be provided so the pipe can be tested or cleaned as necessary.

The minimum depth for the perforated pipe will be 18 inches and both the perforated and non-perforated pipe will fall at least 1/8 inch per foot for the total length of the system to the point of discharge.

The perforated pipe will be installed on top of a bed of gravel, two inches deep, with the perforations pointed down.  The trench will then be then backfilled with drain rock.  The rock we recommend is Class I, Permeable Type A drain rock per the California State Specifications.  The drain rock is clean gravel that varies in size from 1/4 to 1/2 inch.

The trench will be a minimum of 12 inches wide.  This permits a four inch blanket of rock on each side of the four inch perforated pipe.

We will waterproof the foundation walls adjacent to the trench with two coats of asphalt emulsion and fiberglass mesh.

  1. Extend a solid pipe along the right side of your home to connect to the existing downspout and surface drain.
  1. Remove the 13 feet long temporary wood retaining wall located adjacent to the rear of the garage and install a new keystone block wall in its place.
  1. Install a perforated pipe and gravel behind the new block wall, and existing wood wall located to the right of the garage.
  1. Connect all the new drainage into a 4 inch perforated pipe and run it across your front yard to connect to the existing pipe that runs beneath the public walk to the street.
  1. Test the existing sub-drain located in the sub-area and make additional recommendations as necessary.

Call Ward Construction today.

In Concord we specialize in drainage.

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