Foundation Repair Christchurch & Auckland
Specialist Foundation Repair, Christchurch & Auckland
Foundation repairs fall into several categories & as specialists in earthquake and flood related construction, Wrightway is arguably the most experienced provider of foundation work in New Zealand. We cover all aspects, helping you with consents, with engineer sign-offs on structural integrity, and ensuring project completion occurs with a result you'll be delighted with.
Commonly found foundation repairs, Christchurch-wide, are categorised into foundation releveling, repiling, jacking & packing of piles, ring foundation repairs, epoxy crack repairs in concrete slabs, and foundation replacements. If you're experiencing issues, we're happy to conduct a free house inspection to determine your best repair method.
How We Can Help
If you're experiencing vibrations in your home as trucks drive past, or you've noticed uneven flooring, doors not shutting like they used to, this is a likely result of a foundation issue. It might be a simple adjustment of jacking and packing or epoxy crack repairs, but we'll need to start the investigation with a house inspection from one of our qualified Christchurch builders. Wrightway is a known specialist and one of the few remaining Christchurch foundation repair companies that works closely with EQC.
If foundation releveling is required, it's a relatively simple process, but you will have to vacate your home for a number of weeks. There are two ways to relevel the foundation. The first is underpinning, and the second is over pinning. Internal floors can be releveled by jacking and packing of piles, but this relates only to timber floors. A concrete slab should be releveled by underpinning or mechanical lifting. As part of this process, we need to engage engineering designs drawn and council consents before we can commence work. Wrightway can help you with the entire process, and this can take 4-8 weeks.
Jacking & Packing of Piles
If you notice a bouncing floor, one of the reasons for this could be that the pile or bearer connection isn't present, and the piles may need to be jacked, packed and reconnected. This is a very simple process to level the internal floors of your home. In the majority of cases, you won't have to vacate your home, and the process takes up to 2 weeks in Canterbury.
Epoxy - Concrete Slab Crack Repairs
As one of the leading Christchurch foundation repair companies, we address concrete slab crack issues through the impregnation of low viscosity epoxy based injection resin called MC Injeckt 1264 Compact. We carry out this work by cutting an approximate 10mm x 10mm chase directly into the top of the crack creating a reservoir for the epoxy to work its way down via capillary action. It may take up to three fills to ensure the cracks are filled. This process can take 3-4 weeks.
If required, you may also need to vacate your home or the area where repiling is required. Repiling is a simple process where a structural engineer would design a pile detail. Depending on the extent of work, we may need council consent, or if it's a minor requirement, a Licensed building practitioner (LBP) can legally sign it off. Repiling doesn't always require the house to be lifted. A partial repile means we can isolate the area and replace them internally. This process can take from 2-8 weeks, depending on the scale of the job.
For foundation replacement, we may need to lift the house, or it can be replaced in place, depending on the type of foundation and engineering design. Usually, if it's a TC3 foundation, the house will need to be lifted or moved on-site to allow for the foundation replacement. If you're replacing the ring foundation only, then the house can be propped in place and replace the perimeter ring as required. This process can take 4- 8 weeks.
Epoxy - Ring Foundation Repair Christchurch
Ring foundation cracks are addressed through the injection of low viscosity epoxy based injection, which is many times stronger than concrete. We carry out this work by drilling directly into the crack or at a 45-degree angle to intersect the cracks halfway through the thickness of the foundation. We seal both sides of the crack then inject MC-Injeckt 1264 Compact into the cracks via aluminium injection packers to fill the cracks in their entirety. This process can take 1-2 weeks.
The Repair Process
Foundation Repair Christchurch-Wide
It starts with a free house inspection from one of Wrightway Constructions’ senior specialists in foundation repair Christchurch-wide. We’ll arrange to come onsite and inspect all aspects of your foundations, reporting what we find and the appropriate solutions.
Depending of the extent of the damage. we identify while undertaking your inspection to your foundations, we may engage one of our specialist engineers for further detailed reporting.
Scope of Works
Wrightway will then prepare a scope of works taking into consideration the engineers report as well as the finding within the detailed inspection. You’ll be presented this scope of works with a full explanation of each item so you completely understand the process.
You’ll then be at the stage of making a decision to move forward with our foundation repair Christchurch specialists’ recommendations or not. If you require assistance to move forward, such as working through the process with EQC, we are happy to assist.
Once approved, we plan a pre-start meeting with you the home owner so you have a full picture of how the repairs will be undertaken and the likely time-line. We’ll book a commencement date that suits and gives you enough time to lan around it.
Consent, Commence & Complete
We then apply for consent, start the work and deliver weekly progress reports to keep you in the loop until completion & sign-off. Sign-off occurs from both the engineer, the council and you, our client. As one of Christchurch’s leading ring foundation repair companies, we take pride in our workmanship and want you to be a very happy customer.
Frequently Asked Questions
There are several ways to repair a foundation, the most common repair is where the foundation has cracked vertically, this repair requires an injection of epoxy from both sides of the foundation. The other repairs are partial replacement and full replacement.
A full replacement is no doubt the best repair however not always necessary.
Yes, all foundations can be repaired in one form or another.
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