Bathroom Renovations
Complete bathroom renovations managed end to end — design, waterproofing, tiling, and fit-off, delivered to a fixed quote.
Licensed & Trusted Building Services
Keystone Builders — Licensed Builder Hawthorn
Renovations, extensions, and new home builds for homes and businesses in Hawthorn and surrounding areas. One licensed builder from plans to handover.
- Licensed & Insured
- On-Time Service
- Free Quotes
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Jobs Completed
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Years Experience
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Happy Customers
Our Building Services
From renovations to new builds — we handle it all.
Kitchen Renovations
Full kitchen renovations from layout and cabinetry to benchtops and splashbacks — one licensed builder managing every trade.
Home Renovations
Whole-home renovations that modernise tired houses — reconfigured layouts, new interiors, and quality finishes throughout.
House Extensions
Ground-floor extensions that add living space, bedrooms, or a bigger kitchen — seamlessly tied into your existing home.
Most Popular
Second Storey Additions
Engineer-designed second storey additions that double your space without moving — structure, stairs, and finishes complete.
New Home Builds & Custom Homes
New homes built from your plans or ours — custom designs, quality inclusions, and one builder managing every stage.
Knockdown Rebuilds
Full knockdown rebuild service — demolition, approvals, and a brand new home built on your existing block.
Granny Flats & Secondary Dwellings
Council-compliant granny flats built to maximise your block — ideal for family, guests, or rental income.
General Building Works
From small building jobs to repairs and maintenance — no project too big or small for a licensed builder who finishes to a high standard.
What Our Customers Say
Don't just take our word for it.
"Keystone Builders renovated our bathroom and kitchen back to back — on time, on budget, and the finish is faultless. One builder handled every trade for us."
"They built our second storey addition while we lived downstairs. Clear fixed quote up front, spotless site every day, and the new level blends in perfectly."
"From knockdown to handover our new home took nine months and the communication never dropped once. We would build with them again tomorrow."
Why Choose Us
Why Choose Keystone Builders
We do things differently — and our customers notice.
Get a Free QuoteLicensed & Fully Insured
Fully licensed and registered builder with comprehensive insurance for your peace of mind.
On Time, Every Time
We respect your time. We show up when we say we will, or we'll let you know in advance.
Upfront Pricing
No hidden fees or surprise charges. You'll know the cost before any work begins.
Clean & Tidy Sites
We run clean, tidy sites and leave your home spotless at the end of every day.
Satisfaction Guaranteed
We stand behind our work. If you're not happy, we'll make it right.
Our Process
How We Work
Simple, straightforward, and stress-free. From first contact to job complete, we make it easy.
Get a Free QuoteSend Us Your Details
Fill out our quick contact form or give us a call with your details.
We'll Call to Discuss
We'll get back to you to understand exactly what you need.
Receive Your Quote
You'll get a clear, upfront quote — no surprises, no hidden fees.
We Get to Work
Once you give us the go-ahead, we'll schedule and complete the job.
Get in Touch
Send Us a Message
We'll get back to you within 2 hours.
Thanks for telling us your details.
A member of our team will contact you as soon as possible to discuss your job.
Something went wrong sending your enquiry. Please call us on 0412 345 678, or email us directly.