Business Details
Your Trusted Partner for Custom Home Building Solutions
At TG Building, we have dedicated over two decades to delivering exceptional quality in custom home building across Sydney. Our personalized approach ensures every project is tailored to individual client needs, guiding them seamlessly from initial design concepts to final handover. With a commitment to using premium materials and advanced construction techniques, we create durable, aesthetically superior homes that exceed expectations. As a locally owned and operated business, we combine deep knowledge of the Hills District with a hands-on approach, ensuring every client works directly with the owner throughout their project. Our reputation for integrity, attention to detail, and concept-to-completion management has solidified our position as trusted builders in Northwest Sydney.We specialize in home extensions, second storey additions, and bespoke custom homes, prioritizing transparency, client collaboration, and adherence to timelines and budgets. Our team's extensive experience and focus on local regulatory processes ensure smooth approvals and stress-free builds, while our use of local trades supports the community and maintains quality control. Client testimonials consistently highlight our ability to deliver high-quality results ahead of schedule and within budget, reflecting our dedication to customer satisfaction and excellence in every project.
Services
Home Extensions
Second Storey Additions
Custom Home Builders
Renovations
Granny Flats
Highlights and features
- We have over 20 years of experience in custom home building across Sydney
- Our owner-led approach ensures direct communication throughout your project
- We guarantee quality workmanship from concept to completion
- Local expertise in Hills District regulations and community needs
- We deliver projects on time and within budget with transparent processes
What people say
Excellent work
Great ideas
On budget
Personal service
High quality
Services
Home Extensions
Specialist home extension builders in Northwest Sydney delivering tailored solutions for growing families. We manage council approvals, design and construction while maintaining your property's aesthetic integrity. Our local expertise ensures seamless integration with existing structures using quality materials that enhance functionality and value.
Second Storey Additions
Maximise your property's potential with expert second storey additions that preserve backyard space. We create functional living areas for families, grandparents or young adults while navigating Sydney's planning regulations. Our solutions combine structural integrity with modern design to increase property value.
Custom Home Builders
Design and construct bespoke dream homes tailored to individual preferences across Sydney. Our process includes architectural design, council approvals and premium finishes while maintaining strict quality control. We specialise in modern and traditional styles with complete project management from concept to handover.
Renovations
Comprehensive renovation services transforming existing spaces while maintaining structural integrity. We handle everything from bathroom upgrades to full property overhauls, working closely with clients to enhance functionality and aesthetics without compromising quality standards.
Granny Flats
Construct self-contained granny flats that increase property value while providing flexible living solutions. Our designs comply with local regulations while optimising space efficiency. We manage all aspects from planning approvals to final construction with minimal disruption to homeowners.
People
Tony Gronowski
Owner
With over 20 years in the building industry, Tony leads TG Building as a hands-on owner-builder. His commitment to quality and client satisfaction ensures every project receives direct attention from concept to completion. Local knowledge and industry expertise drive successful outcomes.
Questions
What areas do you service?
We operate across Northwest Sydney including Castle Hill, Pennant Hills, Winston Hills, Kellyville and surrounding districts.
Do you handle council approvals?
Yes, we manage all design approvals and regulatory requirements as part of our concept-to-completion service.
Can I customise my build?
Absolutely - we specialise in tailored solutions allowing complete customisation of designs, materials and finishes.
How long does a typical project take?
Timelines vary by scope but we commit to realistic schedules and regular progress updates throughout your project.
Are you licensed and insured?
Yes, we hold full builder's license (453025c) and comprehensive insurance for all projects.
What building types do you specialise in?
We focus on home extensions, second storey additions, custom new builds and granny flats across Sydney.
Reviews (6)
Karen Chong
Jul 25, 2021
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TG Building & Carpentry did a major renovation work for our single storey house recently, which included a complete makeover of the kitchen, laundry, bathroom, new roof, windows, flooring, lightings, skylights, remodel internal structure, back extension, external rendering, cladding and painting. It is not easy to find an honest reliable builder that can accommodate our requirements and needs.
However, we decided to give Tony a chance to take on this challenging project which was not an easy one. Throughout the process Tony was cooperative and willing to listen to our needs. He is flexible and
However, we decided to give Tony a chance to take on this challenging project which was not an easy one. Throughout the process Tony was cooperative and willing to listen to our needs. He is flexible and
Guy De
Oct 06, 2020
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We recently had a second storey built and are extremely happy with the results.
Tony and his team have demonstrated great workmanship, professionalism and quality right from start to finish with an affordable price to match. Tony is very easy to work with, nothing seemed to be a problem as
he approaches his tasks with confidence and ensures his clients are satisfied along the way. The quote / contract was clear and easy to understand, and what you read is what you pay with no hidden surprises. If anyone is looking for an honest, professional builder with great customer service at an affodable
Tony and his team have demonstrated great workmanship, professionalism and quality right from start to finish with an affordable price to match. Tony is very easy to work with, nothing seemed to be a problem as
he approaches his tasks with confidence and ensures his clients are satisfied along the way. The quote / contract was clear and easy to understand, and what you read is what you pay with no hidden surprises. If anyone is looking for an honest, professional builder with great customer service at an affodable
Simone De Pasquale
Jul 16, 2020
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We have recently had a second storey addition to our home in Baulkham Hills. After our very 1st meeting with Tony we were confident we had found the right builder for the job! I cannot speak highly enough of the professional manner in which Tony displayed himself throughout the entire process, we can honestly say there was not 1 hick up! All… tradesmen were punctual, courteous and the workmanship was faultless. Tony we cannot thank you enough for the beautiful home you have made possible. I highly recommend the service's of TG Building and Carpentry.
Nick Painter
Oct 17, 2019
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Our experience with the services provided by TG Building has been problem-free and extremely satisfactory. They offer affordable prices, high quality construction work and great customer service. We were very impressed with the end result of our renovation - Tony and his team have proven to show great workmanship and seem to approach any project with confidence. We highly recommend using TG Building and Carpentry service.
Linden Caiger
May 30, 2019
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Positive:Quality,Value
We commissioned Tony and his team for a garage conversion and laundry reno. The team was responsive and finished the build to a high standard. We were very pleased with the end result and can't recommend TG Building & Carpentry highly enough!
We commissioned Tony and his team for a garage conversion and laundry reno. The team was responsive and finished the build to a high standard. We were very pleased with the end result and can't recommend TG Building & Carpentry highly enough!
Sharon Foord
Aug 22, 2018
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Excellent work. Great ideas. Tony took the pressure off me in all aspects of the build. Very easy to deal with. Finished ahead of schedule & on budget. Happy to show the granny flat to anyone who is interested. Would highly recommend this company. I will definitely use again for all building works. Sharon Windsor
