Best Fence Post Extender For Concrete Posts Deals Online in the UK (25 Deals Found)

Last Updated - 21/08/2025 Sort By:

Best Choice
Premier Garden Supplies

New
Premier Garden Supplies Concrete Post Extenders (2-WAY STRAIGHT) W.100mm x D.100mm x Height 1ft (30cm) Designed for Flat
Dimensions: Width: 100mm x Depth: 100mm with the following optional heights: 1ft (30cm), 1.5ft (45cm), 2ft (60cm) or 3ft

£10.00
POSTFIX

New
Postfix 795mm Long Trellis Fence Height Extension Arms/Toppers VALUE PACK OF 5 PAIRS - NO TRELLIS INCLUDED! **Use with S
5 Pairs of POSTFIX 795mm long Extension Arms - Extend the Height of Existing Fencing RAPIDLY by 1 to 3 Feet in Minutes (

£35.98
New
Post Extender Quick Fit Powder Coated 75x75 (3"x3") Fence Holder Support

£22.20
Best Value
POSTFIX

New
POSTFIX 2 Pairs Fence Height Extension Arms 500mm ***NO TRELLIS INCLUDED***
CORROSION PROOF Galvanised U Channels Slide DOWN SLOT of Concrete Fence Posts and SLIDE OVER the Existing Fence Panel in

£12.95 £15.25
New
Fence Post Extender Holder Support 75mm or 100mm Easy Grip Panel Trellis

£11.39
Woodside

New
Woodside Fence Trellis Extension Arms/Topper Brackets, 50cm, Fixings Included (Pack of 10)
DESIGNED TO - Attach the extension arms to trellis panel toppers that add height to the top of your fence. These are des

£26.99
AB Tools

New
Fence Post Extender Holder Support 100mm x 100mm Easy Grip Panel Trellis 4PK
Post extender is a single piece welded box section.

£32.25
New
100x100 (4") Fence Post Extender Easy Grip Dual Red Oxide Coating
• Enhanced Security: Provides added height to your fence, enhancing privacy and security for your property. • Profession

£12.99
Selections

New
Selections Fence Trellis Topper Bracket Height Extension Arms Pack (5 Pairs inc Screws)
Trellis extension brackets

£25.98
New
Round Fence Post | 1.8m x 60mm | Multipacks
Wooden machine rounded fencing stakes and tree stakes are idea for garden fences, agricultural fencing, animal fences, b

£38.50
POSTFIX

New
POSTFIX Trellis Fence Height Extension Arms VALUE PACK of 5 PAIRS - NO TRELLIS INCLUDED!
POSTFIX 500mm long Extension Arms Extend the Height of Existing Fencing RAPIDLY by 1 or 2 Feet in Minutes (**NO TRELLIS

£23.99
LLB

New
4 x Fence Posts Support U Type Pergola Brackets Extender Foot Shaped Concrete in U Heavy Duty Posts Anchor Tool Spikes S
Size – Measuring 100mm x 100mm x 60mm- / 4” x 4” x 2.36”

£39.99
Free Shipping
New
Slotted Concrete Fence Post Extender Graphite Grey Free Delivery up to 7 feet
Slide in your new fence panel. Take out your existing fence panel. Clip on the finishing cap drill 2 holes & insert 2 sc

£54.99
TIMCO

New
Timco PEX100Taurus Post Extender - Quick Fit - Oxide Red - 100mm

£9.08
New
Slotted Concrete Fence Post Extender / Cover Goosewing Grey up to 8 feet
Slide in your new fence panel. Take out your existing fence panel. You will receive 4 x sleeves, 2 for each side of a co

£59.99
SATOHA

New
SATOHA Postfix Fence Height Extension Arms - 795mm Long - ONE PAIR - NO TRELLIS INCLUDED!
POSTFIX 795mm long Extension Arms Extend the Height of Existing Fencing RAPIDLY by 2 or 3 Feet in Minutes (**NO TRELLIS

£12.99
New
POST EXTENDERS 2 - WAY TIMBER/CONCRETE GARDEN FENCE PANEL EXTENSION
The gap is average size of 55mm so the fence panel can slot in with ease. You will have to put a couple of screws in to

£14.75
New
Intermediate Concrete Fence Post Extension Graphite Grey 6 feet Free Delivery
Slide in your new fence panel. Take out your existing fence panel. Clip on the finishing cap drill 2 holes & insert 2 sc

£49.99
New
concrete fence post extender

£15.53
New
Slotted Concrete Fence Post Cover Extender Steel Brown up to 6 feet Easy to fit
Slide in your new fence panel. Take out your existing fence panel. Clip on the finishing cap drill 2 holes & insert 2 sc

£49.99
New
1ft (30cm) Timber/Concrete Garden Fence Panel 100x100mm Post Extender with Cap
Premier Garden Supplies Concrete Post Extenders W.100mm x D.100mm x Height 1ft (30cm) Designed for Flat or Bobble Top Po

£10.00
New
Slotted Concrete Fence Post Extension / Cover extender Black up to 8 feet
Slide in your new fence panel. Take out your existing fence panel. You will receive 4 x sleeves, 2 for each side of a co

£59.99
New
Slotted Concrete Fence Post Extender / Cover Goosewing Grey up to 7 feet
Slide in your new fence panel. Take out your existing fence panel. You will receive 4 x sleeves, 2 for each side of a co

£54.99
New
Round Fence Post | 2.4 x 60mm | Multipacks
Ideal for fencing, and other garden and landscape uses.

£67.00
New
Round Fence Post | 1.8m x 75mm | Multipacks
Our wooden stakes are ideal for almost all types of fencing including garden fences, wire fencing, agricultural fences,

£42.50

25 Fence Post Extender For Concrete Posts deals are available from: Amazon, eBay stores, starting from £9.08.
The biggest discount we found is 15% on POSTFIX 2 Pairs Fence Height Extension Arms 500mm NO TRELLIS INCLUDED at Amazon.
The lowest price we found is £9.08 while the highest is £67.00.
Prices for the best Fence Post Extender For Concrete Posts deals average at £31.80.
Last updated on August 21, 2025.
We scanned these quality online stores and more to deliver you with the best offers online available for Fence Post Extender For Concrete Posts.