Remedial building quotes can vary enormously for what looks like the same job. Usually that is because they are not the same job: different scopes, different methods and different assumptions. Here is how to compare remedial building services providers fairly on the three things that matter: cost, quality and warranty.
Start with the same scope
The single biggest step is to have every builder price the same written scope, ideally an engineer's specification. Without it, one builder may price a proper repair while another prices a patch, and the numbers cannot be compared.
Comparing cost
| Check | Why it matters |
|---|---|
| Itemised pricing | Shows exactly what is included, so you can compare line by line. |
| Provisional sums and rates | Remedial work always uncovers extra damage. Rates for extra concrete repair or steel replacement decide what variations will cost. |
| Access and staging | Scaffolding, swing stages, hoardings and propping can be a large part of the price. |
| Exclusions | Approvals, engineering, making good and resident disruption are common gaps. |
Comparing quality
- Methodology. Does the quote explain how the repair will be done, not just what it costs?
- Materials. Are the repair mortars, membranes and coatings named, and do they match the specification?
- Hold points. Will the engineer or owner inspect the work before it is covered up?
- Documentation. Photos at each stage, product data and sign-offs are what insurers, committees and future buyers ask for.
- Track record. Similar completed projects, with photos and references.
- Credentials. NSW builder licence, and DBP registration for Class 2 apartment buildings.
Comparing warranty
- Statutory warranties. In NSW, residential building work carries statutory warranties under the Home Building Act 1989: six years for major defects and two years for other defects.
- Home building compensation (HBCF) cover. Required for many residential jobs over $20,000. Some multi-storey buildings are exempt, so check what applies to yours.
- Product warranties. Membranes, coatings and sealants often carry manufacturer warranties, usually only if installed to the manufacturer's system by approved applicators.
- Workmanship warranty. Ask what the builder offers on top of the statutory warranties.
Why the cheapest quote is rarely the cheapest job
Remedial repairs that skip the cause, use the wrong materials or are not inspected tend to fail within a few years. You pay for access, disruption and the repair again. A slightly higher price for a properly specified, documented repair is usually far cheaper over the life of the building.
Get a comparable quote
We provide itemised remedial quotes priced against your engineer's scope, with methodology and documentation included. See our remedial building services.
Frequently asked questions
Why do remedial building quotes vary so much?
Usually because builders are pricing different scopes, methods and assumptions. Having everyone price the same engineer's specification makes quotes comparable.
What warranty applies to remedial work in NSW?
Residential building work carries statutory warranties under the Home Building Act 1989: six years for major defects and two years for other defects, plus any product and workmanship warranties.
Should I choose the cheapest remedial builder?
Not on price alone. Compare scope, methodology, materials, documentation and credentials. Repairs that fail cost far more the second time.
