Deter
per infested elevation.
We climb rooftops, string tensioned wire across ledges, and install spike strips along parapets — so your building stays clean, your tenants stay quiet, and your stonework stays intact.
The Cost of Inaction
Every number below represents a building where someone waited too long.
Your building is a public health liability.
Histoplasma, Cryptococcus, E. coli — dried pigeon droppings become airborne dust. One contaminated loading dock can trigger a failed hygiene audit that shuts down operations for days. Environmental health officers don't issue warnings twice.
A single failed audit costs an average of £18,400 in remediation, downtime, and re-inspection fees — before any regulatory fines.
Limestone doesn't forgive. Neither does a structural survey.
Uric acid in bird droppings attacks limestone, sandstone, and mortar joints at a rate that accelerates with each season. What begins as staining becomes spalling. What begins as spalling becomes a structural engineer's report you don't want to read.
Heritage building owners report average facade restoration costs of £23,000–£85,000 per elevation after five years of unchecked colonisation.
Tenants are already documenting it.
Bird activity near HVAC intakes, cooling towers, and flat roofs with standing water creates conditions for Legionella proliferation. Facilities managers who can demonstrate proactive deterrence have a defensible position. Those who can't, don't.
UK Health & Safety Executive guidance explicitly lists bird droppings near water systems as a Legionella risk factor requiring documented mitigation.
Installation Methods
Three systems. One result:
nothing overhead.
Every installation begins with a free site survey. We assess species, elevation type, access constraints, and planning requirements before specifying a single component. The right system, installed correctly, doesn't need replacing.
Tensioned Wire Systems
Marine-grade stainless wire strung at precise tension across ledges, parapets, and window sills. Invisible from street level. Permanent. No maintenance cycles. The preferred solution for heritage facades where aesthetics are protected.
Effective on: ledges · cornices · parapets · window reveals
Stainless Spike Strips
Polycarbonate-base spike arrays bonded to parapets, ridge tiles, and flat ledges with UV-stable adhesive. Humane — prevents landing without harm. Rated for 15+ year service life in coastal and urban environments.
Effective on: parapets · flat copings · ridge tiles · plant rooms
Heavy-Duty Netting
Knotted polyethylene netting spanning internal courtyards, loading bay overhangs, and plant-room enclosures. Creates a physical exclusion zone. Specified by colour and aperture size to match building aesthetics and target species.
Effective on: courtyards · loading bays · plant rooms · atria
IRATA Rope Access
Our technicians are IRATA-certified rope access specialists. No scaffold erection. No cherry-picker disruption. We access any elevation — heritage facades, multi-storey commercial blocks, listed buildings — with zero footprint at street level.
Covers: any height · any elevation · listed buildings · live sites
Free Site Survey
We attend site, assess all elevations, identify species and risk level, and produce a written specification within 48 hours.
Installation Day
IRATA crew mobilises. No scaffold, no disruption. Most commercial buildings are completed in a single day.
72-Hour Result
Bird activity drops measurably within 72 hours. We document pre and post activity counts for your records.
Measured Outcomes
reduction in bird activity
within 72 hrs of installation
elevations treated
in the last 12 months
system service life
stainless wire & spike systems
survey to specification
written report guaranteed
Client Results
Three buildings. Three different problems.
One consistent outcome.
Pigeon colonisation — SE1 warehouse
3 failed audits · £12K annual cleaning cost
Post-installation — same elevation
Zero bird activity · clean audits since
We'd had three failed hygiene audits in eighteen months. Deter attended site within 48 hours, installed wire systems across all four warehouse elevations, and we've had clean audits ever since. The survey report alone was enough to justify the spend to our board.
Marcus Okafor
Head of Facilities · Meridian Logistics Group
The stonework on our Grade II listed terrace was deteriorating visibly year on year. After Deter's installation, we had our first clean structural survey in six years. The rope access meant no scaffold licence, no pavement closure — tenants didn't even know they were there.
Fiona Carmichael
Property Director · Aldgate Property Partners
Tenant complaints about guano on the walkways were coming in weekly. We'd tried gel deterrents and decoys — neither worked. Deter's wire system resolved it permanently. I haven't had a single complaint in fourteen months.
Raj Patel
Facilities Manager · Canary Wharf Retail Ltd
Two Ways to Start
Request a site survey. Or take the guide home first.
A free site survey costs you nothing. Our written specification gives you a documented cost-of-inaction figure, a system recommendation, and a fixed-price installation quote — all in 48 hours.
Free Site Survey
Written spec within 48 hours. No obligation.
Why a free survey?
- 01
We document current damage with photographs — giving you a baseline for your maintenance records.
- 02
We identify species, nesting status, and seasonal risk — information you need before any planning application.
- 03
We produce a fixed-price quote with no hidden access charges — you know the total cost before you commit.
Accreditations
IRATA Level 3
Rope Access
CHAS Premium
Contractor Health & Safety
IPAF Licensed
Powered Access
HSE Compliant
Wildlife & Countryside Act
Prefer to speak directly?
Our technical team handles all enquiries. No call centres.
0800 123 4567Mon–Fri 7:30am–6pm · Emergency line available
92% reduction in bird activity within 72 hours. No commitment.