40+ GOOGLE REVIEWS

Renovations

Add second storey addition that blend beautifully with your existing home and lifestyle while saving yard space.

Modernise and Refresh

Give your home a fresh new look with updated materials, colours and finishes that match your current taste and lifestyle..

Improve Functionality

Redesign your layout to serve your everyday needs better. Create more open space, better flow, or smarter storage.

Cost-Effective Alternative

Renovating can help you achieve the home you want without the costs of relocating or starting from scratch.

Boost Property Value

Well-planned renovations increase your home’s market appeal and resale value, especially in high-impact areas like kitchens and bathrooms.

Reimagine Your Home

You don’t always need to move or build new to get the home you want. Whether you're dealing with outdated interiors, underused spaces, or shifting lifestyle needs — a smart renovation can completely transform how your home looks, feels, and functions.

Thinking about updating your layout?

Want to modernise tired finishes?

Ready to align your home with your lifestyle?

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Before & After

Your Home, Transformed

Renovating isn’t just about looks. It’s about living better every day.

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BEFORE

AFTER

"To all the team at Keystone, a very big (and very belated) thank you for the wonderful job you all did on our house. It’s just like a new home and suits our bigger family perfectly and as for the timing it was just perfect. Thank you once again we will happily recommend you to family and friends."

Name Surname

Position, Company name

Why Choose Us?

Built on Over 30 Years of Experience

A second storey adds an entirely new dimension to your home, opening up a world of opportunity to accommodate for your lifestyle. Here’s why people choose Keystone to complete their second storey addition.

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Built On Time & Budget

We’re committed on completing your build on time and within budget.

Stay Home While We Build

Most clients stay in their homes during construction, no need to pay for rent or storage.

Disruption Kept to a Minimum

We keep noise, mess, & intrusion low, cleaning up daily and protecting your living space.

Customer-First Approach

We design with your lifestyle in mind and keep you involved every step of the way.

No Hidden Costs

Clear, detailed pricing in your contract—no surprises or unexpected charges.

Trusted Family Business

We’ve delivered quality second storey additions since 1997 with honesty and care.

Featured Projects

EXPLORE PROJECTS

Our Refined Process

Free introductory session

A phone call where we get to know you, talk about your ideas, budget and goals.

Free Design Consultation

Site visit by our consultant who will sit down with you to address every concept of your proposed build.

Formal Concept Design and Proposal

Concept plan prepared by a Building Designer and formal proposal prepared.

Plans and Approvals

Detailed plans prepared and submitted to relevant authority for assessment and approval.

Preparing to Extend

We prepare you for the construction phase.

Construction Phase

This is when the real work begins – it’s time to turn your dream home into a reality!

Free introductory session

A phone call where we get to know you, talk about your ideas, budget and goals.

Free Design Consultation

Site visit by our consultant who will sit down with you to address every concept of your proposed build.

Formal Concept Design and Proposal

Concept plan prepared by a Building Designer and formal proposal prepared.

Plans and Approvals

Detailed plans prepared and submitted to relevant authority for assessment and approval.

Preparing to Extend

We prepare you for the construction phase.

Construction Phase

This is when the real work begins – it’s time to turn your dream home into a reality!

5.0

40 REVIEWS ON GOOGLE

Our Happy Customers

"To everyone who is reading this with intention to build a first floor addition, your search should end here.”
Andrea
NSW
"Thank you so much for all your dedicated hard work and especially your consideration to our family during the renovation of our home.”
Tracey, Jason, Liam & Mackenzie Brown
NSW
“All the tradesman involved in the renovation process were prompt, courteous and very meticulous.”
Cathy & Stephen Bone
NSW
"Their workmanship is second to none that I have seen and the service and tradespeople they used were fantastic."
Reginald Moodley
Penrith
"The staff was very friendly and kept our premises spotless and clean. Nothing was too difficult or out of their way. "
Neil Moodley
Glenmore Park
"The whole process was professional, on time and on budget. The tradesmen were all brilliant and meticulous.”
Chris and Jim
Harrington Park

"Their workmanship is second to none that I have seen and the service and tradespeople they used were fantastic."

Reginald Moodley

Penrith

"The staff was very friendly and kept our premises spotless and clean. Nothing was too difficult or out of their way. "

Neil Moodley

Glenmore Park

"The whole process was professional, on time and on budget. The tradesmen were all brilliant and meticulous.”

Chris and Jim

Harrington Park

"To everyone who is reading this with intention to build a first floor addition, your search should end here.”

Andrea

NSW

"Thank you so much for all your dedicated hard work and especially your consideration to our family during the renovation of our home.”

Tracey, Jason, Liam & Mackenzie Brown

NSW

“All the tradesman involved in the renovation process were prompt, courteous and very meticulous.”

Cathy & Stephen Bone

NSW

"Their workmanship is second to none that I have seen and the service and tradespeople they used were fantastic."

Reginald Moodley

Penrith

"The staff was very friendly and kept our premises spotless and clean. Nothing was too difficult or out of their way. "

Neil Moodley

Glenmore Park

"The whole process was professional, on time and on budget. The tradesmen were all brilliant and meticulous.”

Chris and Jim

Harrington Park

"To everyone who is reading this with intention to build a first floor addition, your search should end here.”

Andrea

NSW

"Thank you so much for all your dedicated hard work and especially your consideration to our family during the renovation of our home.”

Tracey, Jason, Liam & Mackenzie Brown

NSW

“All the tradesman involved in the renovation process were prompt, courteous and very meticulous.”

Cathy & Stephen Bone

NSW

"Their workmanship is second to none that I have seen and the service and tradespeople they used were fantastic."

Reginald Moodley

Penrith

"The staff was very friendly and kept our premises spotless and clean. Nothing was too difficult or out of their way. "

Neil Moodley

Glenmore Park

"The whole process was professional, on time and on budget. The tradesmen were all brilliant and meticulous.”

Chris and Jim

Harrington Park

"To everyone who is reading this with intention to build a first floor addition, your search should end here.”

Andrea

NSW

"Thank you so much for all your dedicated hard work and especially your consideration to our family during the renovation of our home.”

Tracey, Jason, Liam & Mackenzie Brown

NSW

“All the tradesman involved in the renovation process were prompt, courteous and very meticulous.”

Cathy & Stephen Bone

NSW

"Their workmanship is second to none that I have seen and the service and tradespeople they used were fantastic."

Reginald Moodley

Penrith

"The staff was very friendly and kept our premises spotless and clean. Nothing was too difficult or out of their way. "

Neil Moodley

Glenmore Park

"The whole process was professional, on time and on budget. The tradesmen were all brilliant and meticulous.”

Chris and Jim

Harrington Park

"To everyone who is reading this with intention to build a first floor addition, your search should end here.”

Andrea

NSW

"Thank you so much for all your dedicated hard work and especially your consideration to our family during the renovation of our home.”

Tracey, Jason, Liam & Mackenzie Brown

NSW

“All the tradesman involved in the renovation process were prompt, courteous and very meticulous.”

Cathy & Stephen Bone

NSW

"Their workmanship is second to none that I have seen and the service and tradespeople they used were fantastic."

Reginald Moodley

Penrith

"The staff was very friendly and kept our premises spotless and clean. Nothing was too difficult or out of their way. "

Neil Moodley

Glenmore Park

"The whole process was professional, on time and on budget. The tradesmen were all brilliant and meticulous.”

Chris and Jim

Harrington Park

"To everyone who is reading this with intention to build a first floor addition, your search should end here.”

Andrea

NSW

"Thank you so much for all your dedicated hard work and especially your consideration to our family during the renovation of our home.”

Tracey, Jason, Liam & Mackenzie Brown

NSW

“All the tradesman involved in the renovation process were prompt, courteous and very meticulous.”

Cathy & Stephen Bone

NSW

"Their workmanship is second to none that I have seen and the service and tradespeople they used were fantastic."

Reginald Moodley

Penrith

"The staff was very friendly and kept our premises spotless and clean. Nothing was too difficult or out of their way. "

Neil Moodley

Glenmore Park

"The whole process was professional, on time and on budget. The tradesmen were all brilliant and meticulous.”

Chris and Jim

Harrington Park

"To everyone who is reading this with intention to build a first floor addition, your search should end here.”

Andrea

NSW

"Thank you so much for all your dedicated hard work and especially your consideration to our family during the renovation of our home.”

Tracey, Jason, Liam & Mackenzie Brown

NSW

“All the tradesman involved in the renovation process were prompt, courteous and very meticulous.”

Cathy & Stephen Bone

NSW

"Their workmanship is second to none that I have seen and the service and tradespeople they used were fantastic."

Reginald Moodley

Penrith

"The staff was very friendly and kept our premises spotless and clean. Nothing was too difficult or out of their way. "

Neil Moodley

Glenmore Park

"The whole process was professional, on time and on budget. The tradesmen were all brilliant and meticulous.”

Chris and Jim

Harrington Park

"To everyone who is reading this with intention to build a first floor addition, your search should end here.”

Andrea

NSW

"Thank you so much for all your dedicated hard work and especially your consideration to our family during the renovation of our home.”

Tracey, Jason, Liam & Mackenzie Brown

NSW

“All the tradesman involved in the renovation process were prompt, courteous and very meticulous.”

Cathy & Stephen Bone

NSW

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Our trusted suppliers

Our long-standing relationships with reputable brands ensure that every project we deliver not only looks great but stands the test of time. By partnering with specialists in each product category, we’re able to offer you a wide selection, competitive pricing, and materials that meet Australian standards.

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