Drainage Problems in Berkeley

Drainage Issues in Berkeley 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 Berkeley 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 Berkeley property, we will be pleased to come take a look at it. Just give us a call at (510) 215-3636 to set up a professional estimate.

Drainage Contractors

Drainage construction in Berkeleyoften involves drainage design in order to protect the basement from flooding, dry out wet crawlspaces, avoid mudslide, protect the 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 the installation of 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. Rainwater and stormwater should run off the roof through gutters and downspouts, onto concrete tile or through grates then into the French drain, through piping and find its way to appropriate storm drains.

As competent drainage contractors we offer a professional estimate e 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 Berkeley :

Here is one of many examples of a drainage construction project we completed on Euclid Ave in Berkeley :

We will construct a drainage system along a 22 feet long portion of the front of your home.

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 both lines, as well as at the major corners, a clean-out will be provided so that both lines can be tested or cleaned as necessary.

The minimum depth for the perforated pipe will be below the Level of the basement slab 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.

The system will discharge into a sump from where the water will be pumped to the street.

The pump we will use is a high quality 1/3 H.P. 115 volt submersible TEEL, model 3P530C, with a 1 1/4 inch discharge.  The performance rating is 2300 GPH at a head of 10 feet.  The impeller is cast bronze and the motor housing is stainless steel.

The motor housing is the automatic float which eliminates the need for an outside float to control the pump operation.  The advantage of this is that it is less likely that the float will get stuck.

A check valve will be installed in the discharge line to keep water from running back into the sump when the pump turns off.  The pump does not pump the sump dry and there will usually be water standing in the bottom.

The installation will be made so that it will be as easy as possible to service or replace the pump when this becomes necessary.  You should check the sump several times each season to make sure the pump is functioning and that the sump is free of debris.  If the system is designed so roof or other surface water flows into the sump, it will be up to you to install screens on the roof downspouts and surface drains to prevent as much debris as possible from flowing through the lines and into the sump.

We will install a redwood cover over the sump, above the ground surface.

We will provide you with the manufacturer’s limited one-year warranty.  You will be charged for all service calls we make to clean, change or test the pump.  It will be important for you to keep the sump as clean as possible to prevent the pump from becoming clogged.

We will remove a strip of the concrete patio along the front of the house to facilitate installing the drain. We will seal the front foundation/ retaining wall adjacent the drain with 2 coats of asphalt emulsion.

Call Ward Construction today.

In Berkeley we specialize in drainage.

Related Posts: