Billcorp
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Home Structural & Foundation Repair Specialists.
With more than 25+ years of experience under our belt, our Sydney NSW-based building services company, BillCorp, has been providing unparalleled construction assistance to both the general public and professional builders alike. We are an experienced team of building specialists, well versed in an array of construction services including specialising in home building structural repairs.
19/08/2026
What it looks like when we replace failed piers and level your floors 🏡
When our clients purchased their home in Thirroul, a structural inspection uncovered 18 failed brick piers beneath the rear section of the property.
Before their renovation could begin, our team got to work safely supporting the existing structure, removing the failed piers and installing 18 new UniPiers. Each new pier was set on a 32 MPa mass concrete footing pad.
We then leveled the affected floors, raising some sections by 25–45mm to correct years of settlement and subsidence.
The result? A safe, structurally sound and level foundation, giving our clients confidence to move forward with their renovation. 🔨
Another project completed on time, safely and with the site left clean and ready for the next stage!
📍 Thirroul, NSW
🔨 Billcorp — Structural & Foundation Specialists
This is what it looks like when the work is done properly. 🔧
Most people never see what happens underneath their home. Here's a look at the process from breaking out the old piers to setting the new Piers in place. Every footing pad dug, every pier positioned, and every adjustment made by hand.
It's not glamorous, but it's the work that keeps your home standing straight for the next 50 years. 💪🏼
25/06/2026
Your Structural & Foundation Repair Specialist. 💪🏼
Over 30 years of experience making homes for families structurally safe and sound!
Piers are a critical part of your home's foundation, supporting the structure and helping prevent movement over time. Factors such as moisture, salt exposure, poor construction, and shifting soil can all contribute to pier deterioration, leading to costly structural issues if left untreated.
At Billcorp, we provide expert pier repair and replacement services tailored to your home's specific needs. With over 30 years of experience, our team identifies the root cause of foundation movement and delivers reliable, long-term solutions to restore stability and protect your property's value.
If you've noticed warning signs around your home, don't wait for the damage to worsen. Contact Billcorp today for a professional assessment. 👉🏼📞
18/05/2026
Throwback to this lintel replacement project in Woonona 🧱
The lintel above the front window had rusted and failed, compromising the structural integrity of the brickwork. Our team came in, propped the existing brickwork, removed the deteriorated lintel, and installed a new galvanised steel lintel at approximately 2,500mm wide.
Once secured with non-shrink grout, we matched the mortar to the existing brickwork and finished with an acid wash for a clean, professional result. You'd barely know we were there, except the house is now structurally sound and looking great!
It's not always the most obvious repairs that matter the most, but get them wrong and they cause serious problems down the line. This is exactly the kind of work we love doing.
If you've noticed cracking or movement around your windows or door frames, it might be worth getting it looked at. We service Sydney, Wollongong, and Newcastle, and we're always happy to have a chat. 📲
Behind the scenes on a Billcorp project, with no trending audio. 🛠️
06/05/2026
Meet Billy, the face and name behind Billcorp. 🔨
With over 30 years of experience, Billy has built Billcorp into one of Sydney’s most trusted names in structural and foundation repairs. From foundation issues to complex structural work, his focus has always been the same, deliver high-quality results that last.
Built on integrity, precision, and honest work, Billcorp continues to help homeowners and builders across Sydney, Wollongong, and Newcastle restore and protect what matters most. 🙌🏼
Job done in Thirroul! 🔧
We’ve just wrapped up a pier replacement project in Thirroul and couldn’t be happier with how it turned out. What was an unstable, ageing foundation is now solid, safe, and built to last well into the future.
This is exactly why we do what we do, giving homeowners the confidence that their property is in good hands. No cutting corners, no rushing the job. Just quality work, done properly.
A big thanks to our client for trusting us with their home. If you’re in the Wollongong area and have been putting off a foundation issue, now’s the time to act. We’d love to help. 💪
We’re particular about the products we use and there’s a reason we choose Unipier. 🏗️
When it comes to pier systems, not all products are created equal. We’ve tried plenty over the years, and Unipier consistently comes out on top. It’s engineered specifically for Australian conditions, it installs with minimal disruption to your property, and most importantly it lasts.
A lot of cheaper alternatives look fine on paper but don’t hold up when the soil moves or moisture gets in. We won’t put our name on work we don’t believe in, so we only use products we trust completely.
Your home deserves the best foundation and so does the repair.
Want to know more about how we work? Get in touch. ☎️
08/04/2026
At Billcorp, we've spent 30 years helping homeowners across Sydney, Wollongong and Newcastle protect what matters most. From foundation repairs to full structural rebuilds, every job gets our full attention!
Licensed, fully insured, and Class 2 qualified. 🙌🏼
Got a question about your property? Send us a message or give us a call, we're always happy to chat. ☎️
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Website
Address
The Rocks, NSW
2000
Opening Hours
| Monday | 7am - 5pm |
| Tuesday | 7am - 5pm |
| Wednesday | 7am - 5pm |
| Thursday | 7am - 5pm |
| Friday | 7am - 5pm |
| Saturday | 7am - 1pm |