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Builders in Castle Hill NSW

53 results 19 based here · 34 serve the arealistings updated 7 Oct 2026

About builders in Castle Hill

Licensed builders for new homes, extensions, renovations and knock-down rebuilds. Compare 53 builders in Castle Hill NSW: ratings, licences, services and contact details, and ask up to 3 of them for free quotes.

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Showing 1–24 of 53 builders · Page 1 of 3

Based here first, then featured and claimed businesses, then builders by rating, then related trades

  1. ASP Building Services

    Builders · Repairs, Extentions, Interior Renovation

    No reviews yet Licensed

    Builder in Castle Hill, NSW doing repairs, extensions and interior renovations for residential, commercial and industrial clients.

    Based in Castle Hill NSW

    Get a quote View profile

  2. Ace Smart Home

    Builders · Custom Home Builders, Kitchen Renovations, Bathroom Renovations

    No reviews yet

    Builder in Castle Hill, NSW for custom home builds, home renovations, kitchen and bathroom renovations and additions.

    Based in Castle Hill NSW

    Get a quote View profile

  4. Donnelley Constructions

    Builders · Building Renovations, Commercial Construction, Residential Construction

    No reviews yet Licensed

    Builder in Castle Hill, NSW for building renovations, commercial construction and residential construction.

    Based in Castle Hill NSW

    Get a quote View profile

  7. Encore Building Group

    Builders · Home Renovations, Home Extensions, Custom Home Construction

    No reviews yet

    Builder in Castle Hill, NSW for home renovations, home extensions and custom home construction.

    Based in Castle Hill NSW

    Get a quote View profile

  9. Granny Flats Australia

    Builders · Home Builders, Carport, Large Kitchen

    No reviews yet Licensed

    Builder in Castle Hill, NSW for new homes, carports, garages, patios and granny flats.

    Based in Castle Hill NSW

    Get a quote View profile

  20. Based nearby, serving Castle Hill

    These businesses aren't based in Castle Hill but list it as a service area.

  22. Bellriver Homes

    Builders · House & Land Packages, Custom Home Designs, Double-Storey Homes

    No reviews yet Serves this area

    Bellriver Homes is a builder in Baulkham Hills, NSW, working on house and land packages, knockdown rebuilds and custom home designs.

    Based in Baulkham Hills NSW · serves Castle Hill

    Get a quote View profile

  23. Bildy Homes

    Builders · Custom Luxury Homes, Knockdowns & Rebuilds, Duplex Homes

    No reviews yet Serves this area

    Builder in Bella Vista, NSW for custom luxury homes, knockdown rebuilds, sloping block homes and duplexes.

    Based in Bella Vista NSW · serves Castle Hill

    Get a quote View profile

Not sure which builder to call?

Tell us about the job and we'll match it with up to 3 builders in Castle Hill. Your contact details go only to businesses on a paid plan here, and after you send we tell you which businesses got them. Free, no obligation.

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Hiring builders in Castle Hill

Licensed builders for new homes, extensions, renovations and knock-down rebuilds. Aussie Builders Directory lists 53 builders in Castle Hill NSW, with ratings, licences and the services each one offers.

What to check before you hire

Getting started

  1. Describe the job. What needs doing, where, and when you'd like it done.
  2. Shortlist two or three. Use the filters above to narrow this page by rating, licence and owner verification.
  3. Compare quotes. Or send one request and we'll match it with up to 3 builders.
  4. Agree in writing. Confirm the price, start date and payment schedule before work begins.

Frequently asked questions

How do I choose between builders in Castle Hill?

Compare two or three. Check each one's licence on your state regulator's public register, read recent reviews, look at photos of similar jobs, and ask for a written, itemised quote. A business that is owner verified on Aussie Builders Directory has confirmed it runs the listing.

How much does a builder cost?

It depends on the size of the job, materials, access, and how soon you need it done. Most trades quote a fixed price for a defined job and an hourly rate for repairs and call-outs. Asking two or three local businesses for a written quote is the quickest way to see the going rate in Castle Hill.

Do builders need to be licensed?

Most residential trade work in Australia must be done by a licensed contractor, and building work above a set value needs a written contract and home warranty insurance. The rules differ by state, so check the licence number before work starts. Listings marked "Licensed" show a licence or certification on their profile.

What does "serves this area" mean?

Some businesses are based in a nearby suburb but travel to jobs here. On suburb pages we list businesses based in the suburb first, then the ones that say they serve it.

How do free quotes work?

Tell us about the job once. We match your request with up to 3 builders near you. A business on a paid plan here gets it with your name and contact details and can contact you directly. A business on the free plan sees the job and your suburb but not your details, so it can't contact you unless it upgrades. A business that hasn't claimed its listing sees your request only once it claims. After you send, we tell you which applies to each business. It's free and there's no obligation.

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