Replacing an existing fence usually means removing the old one first, a step that is easy to underestimate in both time and cost when planning a replacement, particularly when old posts are still concreted in.
What removal actually involves
- Pickets, rails and panels: generally the fastest part, unscrewed or pried off and set aside for disposal or reuse.
- Posts: the slower part, especially if they are set in concrete. Options include digging out the post and its concrete footing entirely, or cutting the post off at grade and leaving the old concrete footing in the ground (only reasonable if the new fence’s post locations do not overlap the old ones).
- Old concrete footings: if fully removed, these add real weight and volume to a disposal load; if left in place, they need to be accounted for so the new post layout avoids them.
Reuse versus disposal
Sound, undamaged material sometimes has value for another project or can be donated; check locally before assuming everything goes to disposal. Treated lumber and certain coated materials have specific disposal rules in many areas (not always accepted with regular yard waste or general construction debris), so check your local waste authority’s guidance before loading a dumpster or truck.
Estimating disposal volume
A rough rule of thumb: a typical residential wood fence generates a meaningful volume of debris per 100 feet of run, driven mainly by picket and rail count rather than posts. If you already have your material quantities from the wood fence calculator or another material page, that same picket, rail and post count gives you a starting point for estimating what has to be hauled away, even though this site does not publish a fixed volume-per-linear-foot figure (debris volume depends too much on fence style and how compactly it can be loaded to state as one number).
Budgeting for removal
Removal cost, when hired out, is often priced per linear foot, similar to installation labor, and is a separate line item from new material and new installation labor in a full replacement quote. The fence cost calculator has a dedicated removal-cost field for exactly this, so a replacement project’s total reflects removal, not just the new fence.
Timing removal and new installation
For most projects, full removal of the old fence line happens before laying out and digging for the new one, since the new post locations may not exactly match the old ones, and working around remaining old posts or footings usually costs more time than it saves. An exception is a very tight timeline where sections are removed and rebuilt one at a time to keep some enclosure in place throughout, at the cost of a slower overall project.
Plan the replacement
Once removal is accounted for, get your new material list from the relevant fence materials guide page, and use the fence cost calculator with a removal cost entered to see the full replacement budget in one place, not materials and removal estimated separately and added by hand.
Related reading: DIY vs contractor-installed fence, fence cost guide.