Fixings Pull Testing

Independent Testing You Can Trust

London Fixing Testing Ltd provides accurate, independent, fixing pull-out testing to verify the performance and load capacity of anchors, fixings, and fasteners, installed into concrete, masonry, brickwork, blockwork, and stonework. Our testing services help ensure structural safety, regulatory compliance, and confidence in your fixing selection and installation designs.

What Is Fixing Pull Testing?

Fixing pull or pull-out testing is a non-destructive or destructive on-site test used to measure the tensile load at which a fixing reaches a specified load or fails. It confirms whether installed fixings and anchors meet the required performance or provides test data to help in the selection of the most suitable fixing type for the intended application.

Pull-out testing is required when:

  • Quality assurance for project sign off is required
  • The base material strength is unknown or variable
  • Manufacturer data isn't available
  • Site conditions differ from design assumptions
Fixings pull testing of cast in channel.

Types Of Fixings Pull Tests

BS8539 & CFA guidance specifies 3 types of fixings tests:

  • Proof load test - fixings used as part of the construction are tested to verify quality of the installation. The load that fixings should take in the base material is known.
  • Preliminary load test - sample fixings are tested to verify suitability of fixings in the base material. The load that fixings should take in the base material is known.
  • Ultimate load test - sample fixings are tested to verify suitability of fixings in the base material. The load that fixings should take in the base material is unknown - therefore fixings are tested to destruction.

Types Of Fixings And Base Materials

Your on-site testing will be performed using calibrated hydraulic pull-out test equipment and conducted by an experienced and qualified CFA advanced tester trained civil engineer.

We carry out pull-out testing on a wide range of fixings:

  • Mechanical anchors
  • Resin and chemical anchors
  • Screw anchors
  • Throughbolts
  • Wedge / knock-in anchors
  • Plastic anchors / plugs & screws
  • Threaded rod / studding
  • Rebar / reinforcement bar
  • Undercut anchors
  • Cast-in channels
  • Many more specialist fixings

And in the following base materials:

  • Concrete
  • Masonry (brickwork, blockwork & stonework)
  • Hollow pot slab
  • Composite steel deck
Proof load testing of M36 column baseplate fixing.

Standards & Compliance

Our fixing pull-out testing is carried out in accordance with relevant industry guidance, including:

  • BS8539 – Code of practice for the selection and installation of post-installed anchors
  • CFA Guidance Note - Procedure for site testing construction fixings
  • TR051 - Recommendations for job site tests of plastic anchors and screws
  • TR053 - Recommendations for tests of metal injection anchors for use in masonry
  • NASC TG4 - Anchorage systems for scaffolding
  • ETAG / EAD guidance where applicable
  • Project-specific specifications and manufacturer requirements

We provide clear, traceable results suitable for submission to:

  • Building control
  • Main contractors
  • Structural engineers
  • Consultants and insurers
Structural eyebolt fixings pull tested.

Detailed Reporting

Following testing, we issue a comprehensive pull-out test report. Reports are issued within 24hrs so work on site can continue uninterrupted.

Test reports include:

  • Fixing type and size
  • Base material description
  • Test loads applied
  • Mode of failure (if applicable)
  • Photographic evidence
  • Engineer’s observations and comments
  • Equipment calibration certificates
Bespoke fixings pull testing of pre-standardised threaded fixings.

Why Choose London Fixing Testing Ltd?

  • Fast response across London and surrounding areas
  • Construction Fixing Association (CFA) approved (advanced) testers
  • Experienced engineers complete all elements of work
  • Calibrated, industry-approved equipment
  • Wide range of in-house bridges and adaptors for all on-site scenarios
  • Design and fabrication services for bespoke test requirements
  • Easy to understand reporting in line with best practice

We work closely with contractors, engineers, and designers to deliver testing that is practical, reliable, and compliant.

Pull testing of masonry support unit anchors.

Types Of Installations Commonly Tested

Pull-out testing is often specified for:

  • Façade and cladding systems
  • M&E installations
  • Suspended ceiling / metal framing systems
  • Unistrut ceiling channels
  • Scaffold ties
  • Safety-critical fixings
  • Steelwork connections
  • Column baseplates
  • Glazing and curtainwalls
  • Lifting / anchor points
  • Lift shaft guide rails
  • Lighting, chandeliers, sculptures and artwork
  • Signage and flagpoles

If you are unsure whether pull-out testing is required for your project, our team is happy to advise.

Sectors

Sectors we work in: Residential | Retail | Hotels | Historic & Iconic Buildings | Transport | Education | Medical | Sports & Leisure | Energy & Infrastructure | Parks & Gardens

Residential

Shangri-La Residence, St Johns Wood Square, Southbank Place, Sugar House Island, Barking Riverside

Residential Development sector.

Retail

The O2, Harrods, Canary Wharf, Westfield, Liberty's, Marks & Spencers, Sainsbury's

Retail sector.

Hotels

Claridge's, The Savoy, Mandarin Oriental, The Westbury, The Berkley

Hotel sector.

Historic & Iconic Buildings

Battersea Power Station, British Library, The Shard, BBC Television Centre, Brettenham House, Smithfield Market

Historic & Iconic Buildings sector.

Transport

London Heathrow Airport, London Kings Cross, London Bridge, London St. Pancras Stations

Transport sector.

Education

Imperial College, University of Hertfordshire, Highgate School

Education sector.

Medical

Charing Cross, Great Portland Street, Hammersmith, Royal Berkshire, Royal Marsden

Medical sector.

Sports & Leisure

Twickenham Stadium, Newbury Golf Club, Fulham F.C. Craven Cottage

Sports & Leisure sectors.

Energy & Infrastructure

Thames Tideway, Thames Navigator Terminals, Sharnbrook Viaduct, Thurrock Energy Storage

Energy & Infrastructure sector.

Parks & Gardens

Lower and Upper Grosvenor Gardens, Bessborough Gardens, St Marylebone Parish Gardens

Parks & Gardens sector.

Fixings Pull Testing FAQs

How quickly can you come to site?

For urgent work we offer a same day test and certification service (subject to availability). Typically we can attend site within 2–3 working days. Call us to discuss your requirements.

How many pull tests are required?

The number of tests depends on the purpose and type of testing needed, and on the project specification. BS8539 recommends proof testing 2.5-5% of an installation, with a minimum of 3 fixings. For sample testing, BS8539 recommends 5 - 15 fixings tested to a factored load or to destruction.

How many tests can you complete in a visit?

With good access provided, between 20 - 50 pull tests.

Do you conduct testing out of hours (weekend and night work)?

Yes, call one of our engineers, we can arrange this for you.

Can you do same day testing and reporting?

Yes, please let us know your work is urgent.

How quickly can I have my test report?

We issue test reports within 24 hours of testing on-site. A detailed pull-out test report is provided, including test loads applied, failure mode if applicable, photographs, and engineer observations.

What geographical areas do you cover?

We provide testing services in and around London, and travel across the UK for larger scale or more complex projects.

Do I need to book a site survey?

Typically this is not required, as we gather necessary information via a phone call or our one page form, that you can send to your advising engineer to complete and return, with drawings or photos from site.

What is the difference between proof, preliminary & ultimate testing?

Proof testing checks the quality of installation. Preliminary and ultimate load testing provide information on the performance of sample fixings installed into a particular base material on-site.

Do you supply and install fixings?

We specialise in providing independent fixings testing and do not supply or install fixings. We typically direct clients to fixings suppliers like Hilti, Fischer and Rawlplug.

Can you recommend fixings to use on-site?

We suggest clients to speak to their advising engineer, fixings specifier or supplier.

Do you test fall arrest, fall restraint and rope access fixings?

No, these fixings are load tested to different British Standards. Please ensure you select an appropriately qualified, experienced and competent service provider to conduct this type of testing.