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.
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. ☎️
Don't ignore the warning signs of failing piers:
🔴 Cracks in your walls or floors
🔴 Uneven or sloping floors
🔴 Gaps between walls and ceilings
This could mean your foundation is shifting and needs urgent attention.
With 30+ years of experience, Billcorp are Sydney, Wollongong & Newcastle's trusted pier replacement specialists. We'll assess your home and deliver a tailored solution to keep it safe and standing strong! 💪🏼
📩 Contact us today to book your professional inspection.
🔗 Link in bio
Thirroul Project Video Wrap 🔧
Pier repairs completed to restore strength and stability from the ground up. Addressing structural issues early helps prevent major damage and keeps everything level, secure, and built to last.
Solid foundations, done right. 💪🏼
23/03/2026
Sneak peek into one of our latest projects... video dropping soon 🎥
Why are pier repairs so important?
Piers support your home’s foundation but over time, moisture, salt exposure, poor construction or shifting soil can cause them to fail.
Signs you may need repairs:
• Cracks in walls or brickwork
• Uneven or sloping floors
• Jammed doors and windows
• Gaps between walls and ceilings
• Damp or musty subfloors
Left untreated, these issues can lead to serious structural damage and costly repairs. At Billcorp, we provide thorough inspections, tailored repair solutions and expert installation using proven techniques and quality materials. With over 30 years of experience across Sydney, Wollongong and Newcastle, your home is in safe hands. 💪🏼
Behind the walls and under the floors 🏠
This home in Thirroul required extensive structural repairs to meet safety and compliance standards.
The result is a solid, stable foundation built to last! As well as, the egineers tick of approval ✅
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Contact the business
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 |