For builders
Expansion joint sealing
Expansion joints have to accommodate structural movement while staying weathertight. Joint geometry, backing rod sizing and sealant selection are all specification items — not field decisions.
The problem
Movement joints failing early, water ingress through structural joints
What's included
- Work to documented specification
- Correct backing rod sizing and joint geometry
- Low-modulus sealants for high-movement joints
- QA documentation and batch records
- SWMS and site induction compliance
Our process
How we do it
- Step 01
Review the spec
We work to the documented joint detail and sealant schedule, and flag discrepancies before starting.
- Step 02
Prepare
Joints cleaned, primed where required, backing rod sized to achieve the correct width-to-depth ratio.
- Step 03
Install
Low-modulus sealant installed and tooled to the specified profile.
- Step 04
Document
Batch numbers and coverage recorded for the project QA file.
Questions
Expansion joint sealing — common questions
Do you work to a specification?
Yes. We work to the documented joint detail and sealant schedule, and raise an RFI where the detail is unclear or unbuildable rather than substituting on site.
Can you provide QA documentation?
Yes — batch numbers, product data sheets and coverage records for the project QA file.
Free quote
Get a price for expansion joint sealing
Three fields and we'll call you back — usually the same day. A photo of the joint is often all we need to quote.
Also available
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Learn moreGet a free quote today
Tell us what needs sealing and we’ll come back with a fixed price. No call-out fee, no obligation.