200+
Projects Completed
Fully Licensed & Insured
Our MAIN priority is delivering you a flawless service on time.
Best Post-Construction Cleaning in Sydney
After the build is done, we make it shine. GSK delivers meticulous post-construction cleaning for commercial, residential, and industrial projects across Sydney.
- Reliable, On-Time Service
- 10+ Years of Industry Experience
- Fully Licensed & Insured Cleaning Experts
- Eco-Friendly Products & Safe Methods
- Final Builders Clean, Sparkle Clean & Deep Clean Services
From dust-covered floors to smudged windows and builder’s residue — we deep-clean every surface, fitting, and corner to ensure the space is spotless, safe, and handover-ready.
Call Us For Free Instant Quote
0434 126 004
Excellent ★★★★★
Our Satisfied Clients
About Us
Sydney's Top Post Construction Clean Team
GSK Building Solutions is Sydney’s go-to provider for professional post-construction cleans.
From high-rise developments in Sydney city to boutique builds, we've worked with some of the biggest names in the industry to deliver spotless, handover-ready sites.
Our team understands the fast-paced nature of deadlines and operates with precision - showing up on time, fully equipped, and ready to get the job done right the first time.
If you’re in Sydney and need a reliable, experienced crew that knows how to clean to builder-standard perfection, GSK is the only name you need to know.
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Our Service
Be Beat the Rest
After construction wraps up, we step in to transform your space into a pristine, ready-to-use environment. Our post-construction cleaning is detailed and thorough, covering every inch of the site to ensure it's ready for inspection or handover. Our services include:
- Cleaning of all surfaces (walls, floors, windows, fixtures)
- Removal of dust, debris, and construction waste
- Polishing floors, windows, and any glass or metal surfaces
- Deep cleaning of kitchens, bathrooms, and high-traffic areas
Why Choose Us?
Expertise and Experience
GSK shows up on time, fully equipped, and understands the pace of Sydney’s construction industry. No delays. No excuses. Just professional crews who know what “handover-ready” actually means.
Smart, Surface-Safe Cleaning
We use industry-approved techniques and materials to ensure your finishes stay flawless. No scratched glass, no damaged cabinetry - just spotless, showroom-standard results.
Trusted by Sydney’s Best
From developers to custom home builders, top clients across Sydney choose GSK for one reason: we don’t cut corners. Our work speaks for itself - and so do our long-term partnerships.
Fully Insured & Licensed Staff
Available 7 Days A Week!
HOW IT WORKS
01.
Fill Out the Quote Estimator
Enter your project details in our quick online form—takes less than 2 minutes.
02.
Instant Quote, Personal Follow-Up
Our system generates a tailored quote instantly, and one of our team members personally reaches out to walk you through it.
03.
Site Visit & Scheduling
We inspect the site, lock in the clean date, and get your project ready for handover—on time, every time.
Frequently Asked Questions 
Have another question?
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100% Satisfaction 100% Success
Yes—our teams cover the entire Sydney metro area, including the Inner West, Northern Beaches, Sutherland Shire, Hills District, and Western Sydney. If your site is outside the metro zone, just reach out—we’ll do our best to accommodate.
We understand the fast-paced nature of Sydney’s building scene. In most cases, we can inspect and schedule a clean within 24–48 hours, depending on your location and the size of the job.
Absolutely. We’re experienced in handling large-scale sites, including apartment buildings, townhouses, and commercial projects across Sydney. We’re fully insured and meet all compliance requirements.
We get it—delays happen. Just give us as much notice as possible and we’ll reschedule accordingly. Our Sydney-based team is flexible and used to working around shifting site schedules.
TESTIMONIALS
WHY CUSTOMERS CHOOSE US
I was pleased with the communication.
GSK Building Solutions made our office de-fit stress-free and efficient. Their team was professional, and the space was left spotless, ready for the next tenant. We had 0 issues and flawless communications from the supervisor George
★★★★★
Ronnie S
I was pleased with the communication.
We worked with GSK Building Solutions for a complete demolition and de-fit of our commercial space, and they were outstanding from start to finish. Their team was punctual, professional, and kept us informed throughout the entire process.
★★★★★
Jakob R
I was pleased with the communication.
GSK took care of the defit for our store exceptionally quick and for a fair price.
★★★★★
Eleanor P
I was pleased with the communication.
GSK exceeded our expectations in every aspect of our commercial clean. The entire process was smooth, and the end result was flawless. Zero faults. We highly recommend.
★★★★★
Jassmine S
I was pleased with the communication.
We chose GSK for our retail complex project because of a referral and they did not disappoint. From the initial consult phase to the demo, their team was professional, and very quick.
★★★★★
Saaz H
Enquire With Us Today!
Call us today for competitive prices.
0434 126 004
Instant Quote Generator
100% Satisfaction 100% Success