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.
08/10/2026
House Restumping & Subfloor Repairs 🏠
Keep your home safe, level and structurally sound with professional restumping and subfloor repairs.
From replacing deteriorated stumps to stabilising joists and improving subfloor ventilation, we’ve got the foundations covered.
📍 Serving Sydney, Wollongong & Newcastle
📩 Get in touch with Billcorp today!
01/10/2026
Ventilation done right. No shortcuts, no callbacks. 🔨
We installed subfloor ventilation on this recent project, a cross-flow system where one fan pulls stale, damp air out and the other brings fresh air in. Built-in humidity sensors adjust automatically, so the system works harder exactly when your home needs it.
Left untreated, poor subfloor airflow leads to mould, musty odours, and long-term structural damage. Left treated, it's just... a healthier home you don't think about.
If your place has that damp, musty feeling, get in touch. We'll assess your subfloor and tell you straight whether ventilation will fix it. 🔨
15/09/2026
Structural Repairs & Reinforcements | Thirroul 🏠
A past project where our team completed a comprehensive range of structural repairs and reinforcements to bring this property back to a safe, compliant and structurally sound standard.
Working from detailed engineering recommendations, the scope included strengthening existing beams and bearers, installing new supports and footings, upgrading floor joists, reinforcing walls and bracing, strengthening timber connections, and improving balcony drainage.
Every element was completed with a focus on structural integrity, safety and long-term performance. Delivered on time and finished with a full site clean-up.
At Billcorp, we combine engineering direction with experienced workmanship to ensure every repair is completed properly, safely and built to last.
📍 Thirroul
🔨 Structural Repairs & Reinforcement
🏠 Sydney | Wollongong | Newcastle
Need structural repairs? Get in touch with the Billcorp team.
How we be feeling when we have made our clients happy 😎
26/08/2026
Concrete cancer or concrete spalling is more than just a crack or a bit of damaged concrete. When the steel reinforcement inside concrete begins to rust, it expands and puts pressure on the surrounding concrete, causing it to crack, crumble and break away.
With 30 years of experience, we've seen firsthand what happens when concrete cancer is left untreated or repaired without addressing the underlying issue. What starts as cracking, rust staining, bubbling or crumbling concrete can develop into much more serious and costly structural damage.
That's why every repair we take on starts with a proper assessment. We identify the cause, scope the work honestly and repair the affected concrete and reinforcement properly not just cover it up.
That's the standard we've built our reputation on, Licensed. Insured. Class 2 qualified.
Servicing Sydney, Wollongong & Newcastle.
If you've noticed cracking, rust stains, crumbling concrete or signs of spalling, don't wait for it to get worse. Get it assessed properly. ☎️
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. 👉🏼📞
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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 |
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