Quick answer
What homeowners need to know
A scope of work states what is included, the required outcome and standard, interfaces, exclusions, responsibilities and evidence of completion.
Use drawings, schedules and specifications together, and identify which document takes precedence.
Key takeaways
- Describe the result, not just the activity.
- Interfaces between trades are where scopes most often fail.
- Define what is not included as clearly as what is.
- A useful quote explains scope, assumptions, allowances, exclusions, programme and responsibilities.
Quotes, contracts & delivery
Writing a renovation scope of work that holds up
Describe the result, not just the activity. Instead of writing 'replace bathroom floor', state what is removed, the substrate and waterproofing expected, the finish selected and how it meets adjoining rooms. Outcome-based wording gives contractors less room to interpret and gives you something concrete to check at completion. Refer to the selection schedule for product details rather than repeating them.
Interfaces between trades are where scopes most often fail. Who patches the wall after the plumber moves a pipe? Who repaints after the electrician adds a switch? Who removes and refits skirting for new flooring? List these handovers explicitly and assign each to a named party. Unassigned interfaces tend to turn into variations or unfinished corners at handover.
Define what is not included as clearly as what is. Exclusions might cover landscaping, window furnishings, appliance supply, existing defects found later or rooms outside the work area. Put them in a separate list so they are easy to see. If you are unsure whether something belongs in the scope, record it as a question and get a written answer before contracts are signed.
Scope before solutions
Decisions to make before committing
Settle these points before an idea becomes an order, contract or construction instruction.
Use drawings, schedules and specifications together, and identify which document takes precedence.
completeness of design and scope information
number and size of provisional allowances
decision speed, variations and access constraints
Practical sequence
A step-by-step planning process
- 01
Define the exact outcome you need and how success will be checked.
- 02
Issue the same scope and information to every contractor being compared.
- 03
Align inclusions, exclusions, allowances, GST, programme and payment terms.
- 04
Record selections, approvals and variations through one agreed communication process.
- 05
Complete inspections, defects, certificates, warranties and maintenance information at handover.
Cost and time
How to build a more reliable budget and programme
A fixed price or completion date needs a measured scope and a site visit. For residential building work, check the current contract and disclosure requirements and obtain legal advice where the agreement or risk warrants it.
Use the calculator, then request a site-specific assessment.
Risk control
Common mistakes to avoid
- Vague phrases such as 'make good' can produce different expectations at handover.
- accepting a total without reading its assumptions
- authorising changes without written cost and programme effects
Accuracy and compliance
Use current official information
Primary sources used for this guide
- Why contracts are valuableBuilding Performance (MBIE)
- Home renovation and repairConsumer Protection New Zealand
- Planning a successful buildBuilding Performance (MBIE)
Common questions
Frequently asked questions
Who should write the scope of work for a renovation?
For simple jobs, a homeowner can prepare a clear written scope with photos and measurements. For larger or consented work, a designer, architect or project manager usually prepares it alongside drawings and specifications. Whoever writes it, the contractor should review it and raise questions before pricing, so misunderstandings are resolved early.
What does 'make good' mean in a renovation contract?
Make good generally means repairing areas affected by the work so they match the surrounding finish. The problem is that expectations vary. Some read it as patching and painting the affected spot, others as refinishing a whole wall. Define the standard, the extent and who is responsible in the scope rather than relying on the phrase alone.
Should a scope of work include product selections?
Yes, either directly or by reference to a selection schedule. Naming the products, models and finishes stops contractors pricing different quality levels. Where selections are not final, use a clearly described allowance instead. Make sure the scope also states which document takes priority if the drawings, specifications and schedule disagree.