Anti Squirrel Spikes | Squirrel Deterrent Spikes | DIY Squirrel Spikes

KEY FEATURES

1. Great for any surface and application.
2. Long-lasting polycarbonate base and stainless steel spikes provides years of maintenance-free protection.
3. Easy to install – Attach quickly with UV stabilised silicon adhesive, nails, screws, cable ties, etc.
4. Transparent Polycarbonate base – is practically invisible.
5. Flexible – Mount easily on curved. flat or irregular surfaces.
6. Non-lethal and Environmentally friendly. Squirrel Spikes do not harm or injure squirrels.
7. Economical and lightweight – Sturdy polycarbonate base does the same job as stainless steel at a fraction of the cost.

SPECIFICATIONS

• Material: Polycarbonate base and stainless steel wire
• Wire Diameter of Spike: 1.3mm
• Length of spike: 115mm
• Spike Quantity Per Metre: 60 spikes
• Protection Width: 70mm (spike tip to tip)
• Base Size: 500mm (L) x 23mm (W)
• Infestation – From light to heavily infested areas.
• Substrate – Masonry, Steelwork (stainless and galvanised), lead, PVC, PPC, ceramic tiles, glass
• Installation – Using a suitable UV stabilised silicon adhesive or clip is critical to increasing life expectancy.
• Visibility (wires) – Stainless steel bird spikes are far less visible than plastic bird spikes
• Visibility (base) – Low profile base (5mm high) will not be seen from the ground level looking upwards
• Base Colour – Transparent clear base blends well with most surfaces irrespective of the surface colour
• Install Time – Quicker to install than other bird deterrent systems saving you time and money

Anti Squirrel Spikes: Your Guide to Squirrel Deterrent Spikes and DIY Squirrel Spikes for Home Protection

You do not need to hire a pest control company to protect your property from squirrels. With the right products, basic tools, and a clear understanding of where squirrels access your home, you can install an effective anti squirrel spike system yourself in a single weekend. Thousands of homeowners do exactly this every year, saving on professional installation fees while gaining the satisfaction of solving a persistent problem with their own hands.

Squirrel deterrent spikes are among the most DIY-friendly pest control products available. They require no electrical connections, no specialist equipment, and no ongoing chemical applications. The installation involves mounting spike strips on flat surfaces using adhesive, screws, or cable ties, which are skills that anyone comfortable with basic home maintenance can handle confidently. Whether you purchase ready-made commercial spike strips or build your own DIY squirrel spikes from raw materials, the end result is the same: a permanent, humane barrier that prevents squirrels from using your fences, walls, and roofline as pathways to damage your property.

Ready-Made vs. DIY Squirrel Spikes: Which Approach Is Right for You?

Before you begin any squirrel spike project, the first decision is whether to purchase commercially manufactured anti squirrel spikes or build your own from scratch. Both approaches produce functional results, but they differ in cost, time investment, consistency, and long-term performance.

Advantages of Ready-Made Commercial Spikes

Commercial squirrel deterrent spikes are engineered specifically for the task. The pin height, diameter, spacing, and base width have been designed and tested to create a barrier that squirrels cannot defeat. The materials, whether stainless steel or UV-stabilised polycarbonate, are selected for decades of outdoor performance. The base strips are manufactured to consistent dimensions that allow strip-to-strip joining with no gaps. And the mounting systems are designed for secure, lasting attachment to the range of surfaces homeowners need to protect.

For most homeowners, ready-made spikes offer the fastest route to an effective installation. You purchase the strips, mount them on the target surfaces, and the job is done. There is no fabrication, no material sourcing, and no guesswork about whether the finished product will actually deter a squirrel. The engineering and testing have already been done by the manufacturer, and you are buying a proven result rather than experimenting with an unproven design.

Advantages of DIY Squirrel Spikes Built From Scratch

Building your own DIY squirrel spikes appeals to homeowners who enjoy hands-on projects, want to customise the spike dimensions for a specific application, or prefer to use materials they already have on hand. A home-built spike strip can be tailored to the exact width of your fence, the precise profile of your wall cap, or the specific angle of your roof edge in ways that a standard commercial strip may not accommodate without modification.

DIY spikes also offer creative flexibility. You can use stainless steel nails driven through a timber batten, cable ties standing upright through a strip of rigid plastic, or lengths of galvanised wire bent into spike formations and mounted on a base board. The variety of possible designs is limited only by your imagination and the materials available to you. However, this flexibility comes with the responsibility of ensuring your DIY design is actually effective against squirrels, which requires understanding the specifications that determine whether a spike barrier works or fails.

The Hybrid Approach: Commercial Strips With DIY Adaptation

Many homeowners find the best results come from purchasing commercial anti squirrel spikes for the main fence and wall runs, then fabricating custom DIY sections for awkward locations where standard strips do not fit neatly. Post caps, irregular corners, pipe brackets, and curved surfaces often require bespoke solutions that are easier to fabricate on site than to find in a commercial catalogue. Using commercial strips for the bulk of the installation ensures consistent quality and reliable performance, while DIY sections fill the gaps that standard products leave.

Critical Specifications for Any Squirrel Spike System

Whether you buy commercial squirrel deterrent spikes or build your own, the spike system must meet certain minimum specifications to be effective against squirrels. Falling short on any of these parameters produces a barrier that looks like it should work but does not.

Minimum Pin Height

The spikes must stand at least 100 millimetres above the base surface to prevent a squirrel from reaching over or stepping past them. Shorter spikes may deter small birds but allow a squirrel to stretch across the top and find flat surface on the other side. If you are building DIY squirrel spikes, measure your pin height from the top of the base material to the tip of the spike, not from the mounting surface, to ensure the effective deterrent height meets the minimum threshold.

Minimum Pin Diameter and Rigidity

Pins thinner than 1.5 millimetres in diameter flex under squirrel weight and can be pushed aside by a determined animal. Effective anti squirrel spikes use pins of 1.5 to 3.0 millimetres in diameter that hold their position absolutely when a squirrel applies its full body weight and grip strength. For DIY builds, stainless steel nails or galvanised wire of 2.0 millimetres or thicker provide adequate rigidity. Thin wire, plastic cable ties, or wooden skewers are too flexible and too fragile to serve as reliable squirrel deterrent spikes, even if they appear intimidating when first installed.

Maximum Pin Spacing

The gap between adjacent pins must be narrow enough that a squirrel cannot place its paw flat on the base between two spikes. A squirrel’s paw pad is approximately 15 to 20 millimetres wide, so pin spacing should not exceed 15 millimetres to eliminate any flat landing area. Wider spacing allows the squirrel to walk between the pins using the base as a pathway, rendering the spikes decorative rather than functional. This specification is the one most commonly missed in DIY builds, where the temptation to space pins widely to save materials creates a barrier full of comfortable walkways for a nimble squirrel.

Base Width and Surface Coverage

The spike strip base must cover the full width of the surface being protected. A narrow strip centred on a wide fence rail leaves exposed edges on both sides that a squirrel can walk along. Measure the width of your mounting surface and choose or build a spike base that matches or slightly exceeds this dimension. For surfaces wider than a single spike strip, install two rows side by side with the outer edges of each row aligned with the outer edges of the surface.

Humane Tip Design

Squirrel deterrent spikes are designed to deter, not injure. Pin tips should be rounded or blunted rather than needle-sharp. A blunt tip creates discomfort and instability that prevents the squirrel from using the surface without risking puncture injuries that could cause harm. If your DIY build uses nails or wire, file or grind the tips to remove sharp points before installation. Humane design is both an ethical obligation and, in many regions, a legal requirement for wildlife deterrent products installed on residential properties.

Building Your Own DIY Squirrel Spikes

If you choose to fabricate your own squirrel spikes, several proven designs produce effective results using readily available materials and basic tools.

Nail-Through-Batten Method

This is the simplest and most popular DIY squirrel spike design. Take a length of treated timber batten approximately 40 to 50 millimetres wide and 15 to 20 millimetres thick. Drive stainless steel or galvanised nails through the batten from the underside so the nail points project upward from the top surface. Space the nails at 10 to 15 millimetre intervals across the full width and length of the batten, creating a dense forest of pins that a squirrel cannot navigate. File the exposed nail tips to a rounded point, then mount the batten on your fence top or wall cap using screws or adhesive.

The nail-through-batten method is effective, inexpensive, and allows you to customise the strip length and width to any dimension. The main limitations are the weight of the timber batten, which is heavier than commercial plastic or thin metal base strips, and the eventual deterioration of the timber in outdoor conditions. Using pressure-treated timber extends the lifespan to five years or more, but the batten will eventually need replacement, whereas a commercial stainless steel strip will not.

Wire Loop Method

Cut lengths of galvanised or stainless steel wire, each approximately 200 millimetres long, and bend each piece into a U-shape or V-shape. Drill a series of small holes along a strip of rigid material such as aluminium angle, PVC strip, or treated timber, and insert the wire loops through the holes so both ends of each wire project upward as twin spikes. Secure the wires with a dab of epoxy or by crimping the wire beneath the base strip. This method produces a double-pin spike at each position, which provides excellent coverage, and the flexible choice of base material allows you to match the strip to your mounting surface.

Cable Tie Fence Spike Method

For a quick, temporary anti squirrel spike solution, heavy-duty cable ties can be attached to the top of a fence at close intervals using screw-fixed saddle clips or by threading them through holes drilled in a mounting strip. The standing portion of each cable tie acts as a semi-rigid spike that deters squirrels from walking across the surface. This method is the least durable of the DIY options because cable ties degrade in UV light and lose rigidity over one to two seasons of outdoor exposure, but it provides an immediate, low-effort deterrent while you plan a more permanent installation.

Important Considerations for All DIY Builds

Regardless of the method you choose, test your DIY squirrel spikes against the specifications outlined earlier before installing them across your entire property. Build a short test section, mount it in a location where squirrels are active, and observe whether the spikes effectively prevent squirrel access over a period of several days. If squirrels are navigating through or around the test section, adjust the pin height, spacing, or base width before committing to a full installation. A test section takes an hour to build and a few days to evaluate, and it prevents the frustration of discovering that your design does not work after you have installed it on fifty metres of fence.

Installing Anti Squirrel Spikes: A Step-by-Step Guide for Homeowners

Whether you are installing commercial strips or home-built spikes, the installation process follows the same logical sequence that ensures complete, secure, and effective coverage.

Step One: Survey and Measure

Walk your entire property boundary and identify every surface that squirrels are using or could use as a travel route. Measure the total linear length of fence tops, wall caps, roof edges, and other surfaces that need protection. Note the width of each surface, the location of corners, posts, gates, and junctions, and any specific challenges such as curved surfaces, irregular profiles, or hard-to-reach areas. Record everything on a simple sketch or list so you can calculate materials accurately and plan your installation sequence.

Step Two: Gather Materials and Tools

Based on your survey, purchase or prepare the spike strips, mounting adhesive, screws or cable ties, and any cutting tools needed to trim strips to length. For commercial strips, order enough linear metres to cover your measured total plus 10 percent for waste, cuts, and overlaps at junctions. For DIY builds, prepare all your spikes and base strips before starting installation so the mounting process can proceed smoothly without interruptions for fabrication. Gather a sturdy ladder, work gloves, safety glasses, a tape measure, a pencil for marking, and a saw or heavy-duty scissors for cutting strips to length.

Step Three: Prepare Surfaces

Clean every mounting surface along the full installation route. Remove moss, lichen, dirt, loose paint, and cobwebs that would prevent adhesive from bonding or create an unstable base for the strips. Allow timber surfaces to dry completely before applying adhesive. On metal surfaces, wipe with a degreasing solvent to ensure a clean bonding surface. On masonry, brush away loose material and dust. Clean surfaces bond better, hold longer, and produce a more professional finished appearance.

Step Four: Install From One End to the Other

Begin at one end of each fence or wall run and work methodically toward the other end. Apply adhesive or fixings, press the strip into position, and move to the next section. Butt each strip tightly against the previous one with no gap. At posts, cover the post top with a short spike section before continuing along the next panel. At corners, cut one strip to fit the angle precisely and start the next strip on the perpendicular surface. At gates, apply strips across the gate top and both gate posts to maintain continuous coverage across the entire boundary.

Step Five: Check for Gaps and Weak Points

After completing the installation, walk the entire route again and inspect every section for gaps between strips, uncovered post tops, unprotected gate sections, and any areas where the strip has not adhered properly to the surface. Pay particular attention to corners and junctions where coverage gaps are most likely to occur. Fill any gaps immediately, as a single unprotected section as short as 50 millimetres is enough for a squirrel to land on and use as a bypass point.

Step Six: Observe and Adjust

Over the first two weeks after installation, observe your spike-protected surfaces for signs of squirrel activity. Look for scratch marks, droppings, or sightings of squirrels testing the barrier. Successful deterrence is confirmed by the absence of these signs along the protected route and, often, by the presence of squirrels sitting on the ground near the fence looking frustrated. If you observe squirrels successfully crossing any section of the installation, investigate whether the issue is a coverage gap, insufficient pin height, excessive pin spacing, or an alternative access route that bypasses the spiked surfaces entirely.

Combining Squirrel Deterrent Spikes With Other DIY Measures

Anti squirrel spikes are most effective when combined with other deterrent measures that address the various ways squirrels access and are attracted to your property.

Branch Trimming

Trim tree branches to maintain at least a two-metre gap between any branch and your fence, wall, or roofline. Overhanging branches provide aerial bypasses that allow squirrels to drop onto your property beyond the spiked perimeter. Branch trimming is a free, immediate, and highly effective complement to spike installation that eliminates the most common method squirrels use to defeat fence-level barriers.

Downpipe and Climbing Guards

Squirrels that cannot cross spiked fences may attempt to reach your roof by climbing drainpipes, soil pipes, and other vertical structures adjacent to the building. Cone-shaped guards or smooth metal bands fitted around these structures prevent upward climbing and close the vertical access route that complements the horizontal route blocked by your fence spikes. DIY climbing guards can be fabricated from sheet metal or smooth plastic formed into a cone shape and clamped around the pipe.

Entry Point Sealing

Inspect your roof, soffits, fascias, and wall vents for gaps, holes, and deteriorated sections that a squirrel could enlarge to gain entry to enclosed spaces. Seal these openings with heavy-gauge galvanised mesh, sheet metal, or purpose-designed vent covers that a squirrel cannot chew through. Expanding foam, lightweight plastic, and thin timber are not adequate barriers. Sealing entry points ensures that even a squirrel that somehow bypasses your spike barriers cannot gain access to the interior of your building.

Repellent Application

Apply scent or taste-based squirrel repellents to specific items that squirrels are chewing, such as wooden deck posts, garden furniture, and cable runs. Capsaicin-based sprays are particularly effective for deterring gnawing behaviour and can be applied to surfaces that are difficult to protect with physical barriers. Repellents require periodic reapplication but provide a useful supplementary layer of deterrence for targeted problem areas.

Squirrel-Proof Bird Feeders

If bird feeders are attracting squirrels to your garden, replace standard feeders with squirrel-proof models that use weight-activated port closures or external cages that allow small birds to access the seed while excluding squirrels. Removing the food incentive reduces the squirrel’s motivation to persist through your deterrent barriers and makes your entire control strategy more effective by attacking the problem from the demand side as well as the access side.

Maintaining Your Spike Installation Over Time

Whether your anti squirrel spikes are commercial or home-built, a small amount of seasonal maintenance keeps them performing at full effectiveness.

Clear Debris Twice a Year

Leaves, twigs, and windblown material accumulate on spike strips, particularly during autumn. This debris creates a mat above the spike tips that squirrels can walk across without contacting the pins. Brush debris from your spikes in late autumn after leaf fall and again in early spring before peak squirrel activity season. A stiff hand brush or a blast from a leaf blower clears most accumulation quickly.

Inspect and Repair Annually

During your annual property maintenance routine, inspect the full length of your spike installation for loose strips, broken pins, adhesive failures, and surface deterioration beneath the mounting points. Reattach or replace any compromised sections immediately. For DIY timber-based spikes, check the batten for rot, splitting, or warping that could affect the spike positions. Replace deteriorated DIY sections with fresh builds or upgrade them to commercial strips for improved longevity.

A Weekend Project That Protects for Years

Installing squirrel deterrent spikes is one of those rare home projects where the effort is small, the skills required are basic, and the results are immediate and lasting. A single weekend of measuring, mounting, and securing spike strips along your fence tops, wall caps, and roof edges creates a barrier system that works around the clock, through every season, without batteries, chemicals, or follow-up visits. Commercial spikes deliver proven performance out of the box, while DIY squirrel spikes offer creative homeowners the satisfaction of building their own solution from materials they trust.

Whichever route you take, the key is completeness. Cover every surface, close every gap, protect every post top and gate, and combine your spikes with branch trimming, climbing guards, and entry point sealing for a layered defence that squirrels cannot defeat. Do it once, do it thoroughly, and your anti squirrel spikes will give you years of protection from an animal that was never going to stop coming back on its own.