Cost: exterior timber finishing
Build the budget from accessible faces, timber and old coating condition, then access arrangements. Request separate descriptions where local maintenance and wider renewal are both options. No local square-metre rate or periodic maintenance cost is established here.
Editorial update on 19 September 2026
Compare developed surface areas
Define faces, edges, openings, profiles and exclusions. Linear rates for beams or balustrades need profile and face information; they do not directly compare with square metres of flat panel. Avoid counting included faces twice.
Separate maintenance and repair
List cleaning, old film preparation, timber repairs, finishing system and any trials. Distinguish findings and work still to confirm. Do not assume opaque paint always lasts longer or stain always costs less to maintain; compare actual proposed systems.
Check access costs
Request installation, duration and removal of scaffolding or other access, plus protection and cleaning. If shared with other work, clarify coordination and cost allocation. Specify taxes and exclusions without a universal scaffolding percentage.
The three budget levels
Where your money goes
- SurveyOn quotationElements, faces and exposure.
- PreparationOn quotationOld film and substrate.
- FinishOn quotationSelected product and system.
- AccessOn quotationInstallation, protection and cleaning.
What makes the price vary
Condition
Maintenance or prior repair.
Geometry
Profiles, joints and faces.
Exposure
Local assembly conditions.
Access
Height and work coordination.
Indicative scenarios
No grant is deducted from the budget shown here. If a quote mentions support, request the exact scheme and confirmation of your eligibility before including it in financing.
Frequently asked questions
Does paint repair weakened timber?
It does not restore strength. Have components assessed before finishing.
Is full stripping always needed?
Not by default. It depends on the old film and new system.
Does stain last a fixed number of years?
No. Consider product, substrate, exposure and application together.
Can joinery stain be used on decking?
Not automatically. Request suitability for the relevant surface and traffic.
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