The process in which the foundations of a house are strengthened is
known as underpinning a house. This is done by professionals who assess
the extent of damage the weakened foundations have caused and will fix
it for you.
When the walls of the house start to crack
and the front door jams, it is likely that there is something that is
causing trouble. You should call a contractor, a structural engineer,
or an expert who specializes in underpinning work, to inspect the
house. Without knowing the extent of the damage, we cannot assess the
cost of underpinning a house.
We do suggest that you
take the opinion of at least two different companies and compare their
assessments and prices. The companies themselves will then contact the
structural engineers, soil test engineers, insurance companies, and
building inspectors. The entire process can be complex and even
frustrating for you if things get delayed for various reasons.
Challenges of Determining the Cost of Underpinning a HouseExpertise
cannot deny that experts tend to charge more than others. After all,
they have years of experience to ensure that the work gets done without
much trouble. Also, with different methods of underpinning being
followed by different contractors and companies, the charges will
invariably vary to suit the materials, equipment, and labor required for
house is different. The size, shape, model, and the soil conditions of
each house will be different from the other. Each house has to be
individually assessed and various factors have to be taken into
consideration to determine the cost of underpinning a house.
are going to be straightforward and admit that not all contractors will
be honest. There will always be people who would want to take advantage
of the fact that the house owners do not know the technicalities of the
process. You could end up paying more than what is necessary if you are
not careful. At the same time, there are contractors and companies who
value transparency and charge only according to the amount of work that
needs to be done.
Types of Underpinning That Decide the Cost of Underpinning a House
v Beam and Base:
A technically advanced version, concrete beams are constructed below or
above the existing footing that bear the weight of the entire house.
The size and the depth of these beams will depend upon the ground
conditions of the house.
v Mass Concrete:
Suitable for heavy foundation loads and shallow depth underpinning,
this method follows a process in which the ground below the house is
excavated step by step and then filled with concrete.
v Mini-piled: Mini-piled underpinning is followed when a good portion of the foundation has to be transferred to stable soil.
v Expanded Resin Injection:
A dose of structural resin and hardener mix is injected into the weak
soil to make it compact enough to sustain the weight of the house.
Expected Cost of Underpinning a House
An underpinning job that involves major work
would cost around $30,000, including the charges of the engineer and
other miscellaneous costs. If the job is a small one with a concrete
base, the cost of underpinning a house could be around $15,000. The
below stated are the four major elements that are charged by the
To avoid having to pay more, you can ask for a fixed price quote or a transparent quote from the companies. The language used in the quote should be clear and the company should provide clarifications and make sure you understand everything before the work begins.
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