How to Choose a Builder for Your Home Extension

Your choice of builder can make or break your home extension project. The right builder brings expertise, reliability, and peace of mind. The wrong one can lead to delays, budget blowouts, and substandard work. Here's how to make sure you choose wisely.

Why Your Builder Choice Matters

A home extension is a significant investment—both financially and emotionally. You're inviting someone into your home, trusting them with your vision, and relying on their expertise to navigate complex building regulations. The builder you choose will impact:

• The quality of workmanship and materials used
• Whether your project stays on time and on budget
• How smoothly the construction process goes
• Your stress levels throughout the project
• The long-term value and enjoyment of your extended home

Essential Qualifications to Check

Builder's License

In Victoria, anyone undertaking building work valued at more than $10,000 must hold a valid builder's registration with the Victorian Building Authority (VBA). This isn't just a formality—it's your protection.

Always verify a builder's license through the VBA website. Check:

• The license number and class
• That the license is current and not suspended
• Any conditions or restrictions on the license

At Brownlow Building, we hold license CDB-U 100870 and are proud to meet all VBA requirements for residential building work.

Insurance Coverage

Legitimate builders carry comprehensive insurance including:

• Public Liability Insurance: Protects you if someone is injured on your property during construction
• Contract Works Insurance: Covers damage to the work during construction
• Domestic Building Insurance: Required for projects over $16,000, protects you if the builder can't complete the work

Don't just take their word for it—ask to see current certificates of currency for all insurance policies.

Experience with Home Extensions

Building an extension requires specific skills different from new builds or renovations. Your builder should have demonstrable experience with:

• Matching new work to existing structures
• Working with occupied homes
• Navigating planning and building permits for extensions
• Managing the unique challenges of extension work

Questions to Ask Potential Builders

About Their Business

• "How long have you been in business?"
• "How many home extensions do you complete each year?"
• "Do you use in-house tradespeople or subcontractors?"
• "Who will be my main point of contact during the project?"
• "What's your approach to project management?"

About the Project

• "What's a realistic timeline for my project?"
• "How do you handle changes or variations to the plan?"
• "What happens if issues are discovered during construction?"
• "How do you manage dust and noise in occupied homes?"
• "What's your process for clean-up and waste management?"

About Contracts and Payments

• "Do you provide fixed-price contracts?"
• "What's your payment schedule?"
• "What warranties do you offer?"
• "How do you handle disputes or complaints?"
• "What's included in your quote, and what's considered extra?"

Red Flags to Watch For

Certain warning signs should make you reconsider a builder:

• No verifiable license or insurance: This is non-negotiable—walk away immediately
• Pressure to sign quickly: Reputable builders give you time to review contracts
• Vague or verbal quotes: Everything should be documented in writing
• Request for large upfront payments: Payment schedules should align with work completed
• Can't provide references: Established builders have happy clients willing to vouch for them
• No written contract: A detailed, written contract protects both parties
• Poor communication from the start: If they're hard to reach now, imagine during construction

Checking References and Past Work

Don't skip this step. Request at least three recent references for similar projects and actually contact them. Ask:

• "Did the builder complete the project on time and on budget?"
• "How was communication throughout the process?"
• "Were there any issues, and how were they resolved?"
• "Was the site kept clean and safe?"
• "How was the quality of workmanship?"
• "Would you hire them again?"

If possible, visit completed projects to see the quality of work firsthand.

Understanding the Quote

A comprehensive quote should include:

• Detailed breakdown of labor and materials
• Specifications for materials and finishes
• Start and completion dates
• Payment schedule tied to milestones
• Process for handling variations
• Warranty information
• What's excluded from the scope

Be wary of quotes that seem too good to be true—they usually are. Low quotes might indicate:

• Use of inferior materials
• Inexperienced or unlicensed tradespeople
• Hidden costs that will emerge later
• Corners being cut on important aspects

The Importance of Chemistry

Beyond qualifications and experience, you need to feel comfortable with your builder. You'll be working closely together for weeks or months, so consider:

• Do they listen to your ideas and concerns?
• Are they responsive to emails and calls?
• Do they explain things clearly?
• Are they respectful of your home and time?
• Do they seem genuinely interested in your project?

Trust your instincts—if something feels off, it probably is.

Making Your Final Decision

After meeting with several builders, reviewing quotes, and checking references, compare your options. Consider:

• Value (not just lowest price)
• Experience and expertise
• Quality of communication
• Thoroughness of quote and contract
• Feedback from references
• Your comfort level with the builder

The cheapest option is rarely the best choice for a major project like a home extension. Focus on value, quality, and peace of mind.

Why Choose Brownlow Building?

At Brownlow Building, we understand that choosing a builder is a big decision. That's why we focus on transparency, communication, and quality workmanship across every project in Melbourne, Geelong, Ballarat, and the Mornington Peninsula.

When you work with us, you get:

• Fully licensed and insured builders (License CDB-U 100870)
• In-house team—no outsourcing
• Fixed-price contracts with detailed specifications
• Clear timelines and regular communication
• Comprehensive project management from start to finish
• Quality materials and expert craftsmanship
• Respect for your home and schedule

We're proud of our reputation and happy to provide references from recent home extension projects. Our portfolio speaks for itself, and our clients' satisfaction is our best advertisement.

Ready to discuss your home extension project? Contact us today for a free, no-obligation consultation. We'll listen to your vision, answer your questions, and provide an honest, transparent quote for your project.