A low tender price can be the most expensive outcome on a remedial project. If waterproofing has failed, concrete is spalling or façade elements are deteriorating, the real risk is not simply choosing the wrong contractor. It is accepting a tender that has priced a different scope, overlooked the cause of the defect or left major work items as assumptions. This remedial works tender checklist helps strata committees, asset managers and property owners compare submissions on a sound technical and commercial basis.
Start with a complete and comparable tender package
Tender comparison only works when every contractor is responding to the same information. Before tenders are invited, establish a clear package that identifies the known defects, the intended repair outcome, the drawings and specifications, and the project constraints.
For a complex remedial project, this should usually be informed by a defect investigation and, where required, an engineer’s repair design. A brief that says “repair concrete cancer to balconies” is not sufficiently defined. It leaves each tenderer to make their own assumptions about the extent of deterioration, repair methodology, reinforcement treatment, coating system, access requirements and protection of occupied areas.
The resulting prices may look comparable, but they are not. One contractor may allow for local patch repairs while another has priced widespread breakout, reinforcement replacement and cathodic protection. Neither figure tells the full story without the underlying assumptions.
The tender package should identify site conditions that affect delivery. These can include occupied apartments, trading commercial premises, restricted access, heritage controls, noise limits, working hours, service isolation requirements, hazardous materials, traffic management and the need to maintain waterproof integrity during staged works. Where information is incomplete, state that clearly and require tenderers to identify their allowances, exclusions and proposed investigation steps.
Remedial works tender checklist: what to assess
A disciplined assessment goes beyond the tender total. Use the following checks to determine whether each submission provides a workable path from defect diagnosis to durable repair.
- Scope alignment: Confirm the tender addresses every item in the drawings, specification, schedules, reports and tender addenda. Check whether quantities, repair locations and nominated systems have been included or qualified.
- Root-cause response: Assess whether the methodology deals with why the defect occurred. For example, concrete repairs may fail prematurely if water entry, inadequate falls, failed joints or corrosion drivers are not rectified at the same time.
- Methodology and sequencing: Require a project-specific methodology covering investigation, sample areas, removal works, substrate preparation, repair installation, curing, testing, reinstatement and handover. Sequence is particularly important where waterproofing, structural work and finishes overlap.
- Technical capability: Review relevant experience in the repair type, not just general construction experience. Concrete remediation, façade restoration, Class 2 defect rectification and heritage repairs require different knowledge, materials and quality controls.
- Engineering and design coordination: Clarify who is responsible for engineering input, design practitioner coordination, shop drawings, certifications and any design development required during delivery.
- Compliance and approvals: Confirm the approach to building approvals, applicable codes, work health and safety obligations, environmental controls, fire safety interfaces and relevant NSW design and building practitioner requirements.
- Programme and site management: Test whether the proposed programme is realistic for access, weather exposure, curing periods, material lead times and resident or tenant communication. A shorter programme is only beneficial if it can be delivered without compromising quality.
- Commercial clarity: Examine exclusions, provisional sums, prime cost items, variations, payment milestones, warranties, defects liability obligations and the basis for latent-condition claims.
The value of this checklist lies in the detail behind each response. A tenderer who simply confirms compliance may still have gaps. Request supporting documents, then assess whether the proposed controls are specific to the building rather than copied from a generic template.
Test the repair methodology, not just the product
Named products can create a false sense of certainty. A high-quality membrane, repair mortar or coating system will not compensate for poor substrate preparation, incorrect detailing or inadequate curing. The tender should explain how the system will be installed and verified.
For waterproofing works, look for preparation requirements, drainage and fall corrections, junction detailing, termination methods, compatible primers, protection layers, flood testing or electronic leak detection where appropriate, and responsibility for reinstating finishes. If the repair is to a podium, roof or balcony, the interface with balustrades, door thresholds, planter boxes, services and movement joints needs particular attention.
For concrete spalling and crack repairs, check the process for sounding, breakout limits, reinforcement assessment, corrosion treatment, repair mortar application, curing, crack classification and protective coatings. The correct approach depends on the deterioration mechanism. Carbonation, chloride ingress, water penetration, structural movement and poor original construction can require materially different repair strategies.
A tender should also acknowledge what cannot be confirmed until opening-up works occur. This is not necessarily a warning sign. Remedial construction often involves concealed conditions. The important question is whether the contractor has provided a transparent process for investigating, documenting, pricing and obtaining approval for additional work if it is genuinely required.
Ask how quality will be verified
Quality assurance should be measurable. Tenderers should nominate hold points, inspection records, photographic documentation, material batch tracking and testing requirements. Depending on the work, this may include pull-off testing, moisture testing, flood testing, coating thickness checks, concrete testing or engineer inspections.
Avoid accepting vague statements such as “all works will be completed to Australian Standards”. Standards matter, but they do not tell you how the contractor will manage the particular interfaces and risks on your building. A credible quality plan turns the specification into verifiable site controls.
Compare qualifications and exclusions line by line
Qualifications are not always unreasonable. They may identify missing information, client-controlled risks or work that properly sits outside the contractor’s scope. Problems arise when qualifications are buried in a tender, poorly understood at appointment, then emerge as variations after mobilisation.
Create a tender comparison register that records each exclusion, assumption and provisional allowance beside the relevant scope item. Then issue the same clarification request to every tenderer where possible. This maintains fairness and can reveal whether a low price is based on a narrow interpretation of the works.
Pay close attention to access. Scaffolding, swing stages, boom lifts, loading zones, hoardings, protection, after-hours work and resident access management can represent a substantial part of a façade or high-rise remedial project. The same applies to making good. A repair package that excludes tiles, painting, landscaping, ceilings or internal finishes may leave the owners corporation with a fragmented project and unplanned cost.
Provisional sums need similar scrutiny. They are useful where quantities or latent conditions cannot reasonably be fixed before work starts, but they should have a defined basis. Ask what labour rates, mark-ups, material assumptions and approval process will apply. An undefined provisional sum transfers too much uncertainty to the client.
Assess the delivery team and accountability structure
The tender should identify the people who will actually manage the work: project manager, site manager, supervisor, safety lead and any specialist subcontractors. Ask about their experience on comparable occupied buildings and their authority to make decisions on site.
Coordination matters because remedial works frequently sit across several disciplines. An engineer may need to review structural repairs, a waterproofing specialist may need to resolve membrane details, and building management may need to coordinate access with residents or tenants. A contractor with a clear communication framework can manage these interfaces before they become delays or disputes.
For Sydney strata and commercial buildings, it is also sensible to ask how the contractor will manage neighbour impacts, council requirements, access constraints and weather exposure. A methodology that works on an empty site may not work on a busy urban property.
Do not appoint on price alone
Once technical compliance has been assessed, compare the commercial position. Consider the tender total alongside exclusions, provisional sums, programme, warranty terms, defect rectification obligations and the likely cost of items not included. The best-value submission may not be the lowest price, particularly where the higher-priced tender includes investigation, coordination and quality controls that reduce future failure risk.
A useful final step is a tender interview. Ask each shortlisted contractor to explain their understanding of the defect, the three greatest project risks, the repair sequence and the items most likely to require clarification. Their answers often show whether they have properly considered the building or merely priced the documents.
Remedial Building Practitioners approaches tendered work through investigation-led scope definition, coordinated delivery and transparent reporting, because long-term asset performance depends on resolving the cause as well as repairing the visible damage.
Before awarding the contract, ensure the agreed scope, clarifications, drawings, programme, quality requirements and contract conditions are captured in the final documents. That discipline gives every stakeholder a clearer basis for decision-making and gives the repair work its best chance of lasting.
