Build your new home or Knock down rebuild

Whether you are seeking to build a new home or to knock down and rebuild an existing house, Stonegate is a construction company for you. We are professional Home Builders based in Engadine, Sutherland Shire of Sydney. We build everything from custom homes, duplexes and extensions to commercial and apartment buildings. We also build dual-occupancy sites, apartments and town houses in the Sutherland area as well as in other Sydney regions. We strive to be amongst the best home builders in Sydney, giving our customers a clear and comprehensive understanding of how we work.

Please read our Step by Step guide below to understand what to expect during the major phases of construction.


Building your new home is exciting, especially when you understand how the process works:


STEP 1. Prepare site and pour foundation: 

Site preparation and foundation work are often performed by the same crew, but this may not be the case with a wooded lot. Using a backhoe and a bulldozer, the crew clears the site of rocks, debris and trees for the house. The crew levels the site, puts up formwork to serve as a template for the foundation and digs the holes and trenches. Footings (structures where the house interfaces with the earth that supports it) are installed. If the home has a full basement, the hole is dug, the footings are formed and poured, and the foundation walls are formed and poured. If it’s slab-on-grade, the footings are dug, formed and poured; the area between them is levelled and fitted with utility runs and the slab is poured.

STEP 2. Complete rough framing:

 Floor systems, walls and roof systems are completed (collectively known as the shell or skeleton of the house). Roof and windows and exterior doors are also installed. The sheathing is then covered with a protective barrier known as a house wrap; it prevents liquid water from infiltrating the structure, while allowing water vapour to escape. This reduces the likelihood of mould and wood rot.

STEP 3. Complete rough plumbing, electrical and HVAC:

 Once the shell is finished, siding and roofing can be installed. At the same time, the electrical and plumbing contractors start running pipes and wires through the interior walls, ceilings and floors. Sewer lines and vents, as well as water supply lines for each fixture, are installed. Bathtubs and one-piece shower/tub units are put in place at this point because there’s more room to manoeuvre large, heavy objects. Ductwork is installed for the heating, ventilation and air conditioning system. HVAC vent pipes are installed through the roof and insulation is installed in the floors, walls and ceilings. After the roofing goes on, the house is considered “locked up.” An electrician then installs receptacles for outlets, lights and switches and runs wires from the breaker panel to each receptacle.

STEP 4. Install insulation: 

Insulation plays a key role in creating a more comfortable, consistent indoor climate while significantly improving a home’s energy efficiency. One of the most important qualities of insulation is its thermal performance or R-value, which indicates how well the material resists heat transfer. Most homes are insulated in all exterior walls, as well as the attic and any floors that are located above unfinished basements or crawl spaces.

STEP  5. Complete drywall and interior textures; start exterior finishes: 

Drywall is hung and taped so the seams between the boards aren’t visible. The primer coat of paint is also applied after taping is complete. Contractors begin installing exterior finishes such as brick, stucco, stone and siding.

STEP 6. Finish interior trim; install exterior driveways and walkways:

Interior doors, baseboards, door casings, window sills, mouldings, stair balusters and other decorative trim are installed, along with cabinets, vanities and fireplace mantels and surrounds. Walls get a finish coat of paint and are wallpapered where applicable.Generally, exterior driveways, walkways and patios are formed at this stage.

STEP 7. Install hard-surface flooring and complete exterior grading:

Ceramic tile, vinyl and wood flooring are installed as well as countertops. Exterior finish grading is completed to ensure proper drainage away from the home and prepare the yard for landscaping.

STEP 8. Finish mechanical trims; install bathroom fixtures: 

Light fixtures, outlets and switches are installed and the electrical panel is completed. HVAC equipment is installed and registers completed. Sinks, toilets and faucets are put in place.

STEP 9. Final Inspection:

 A private certifier / council certifier completes a final inspection and issues a certificate of occupancy. If any defects are found during this inspection, a follow-up inspection may be scheduled to ensure that they’ve been corrected.

STEP 10. Final walkthrough: 

We will walk you through your new home to acquaint you with its features and the operation of various systems and components and explain your maintenance requirements, as well as warranty coverage and procedures.

 * Inspections: Your new home will be inspected periodically by a private certifier during the course of construction. In addition to mandated inspections for code compliance, we will conduct quality checks at critical points during the process.

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