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Remedial Wall Ties: A Brief Guide

Remedial wall ties come in a variety of forms, each suited to a particular repair application. Whilst each system works by different means, they all deliver the required result of securing the outer brick façade to the inner layer of a cavity wall structure.­  Twistfix supply a compre­hen­sive range of these vital structural components.

Cavity wall tie failure is typically caused by the aging process of a building, whereby steel wall ties begin to rust.  As the wall ties corrode, the load-sharing capacity and stability of a cavity wall structure may be impaired.  On newly built structures, tie failure may be a result of at least some of the original 'built-in' brick ties having been omitted.  Whatever the cause, you will find the right retrofit product here at Twistfix in the dedicated 'Wall Ties' section of our website.

255mm-Ties-150kit 2Neoprene-Replacement-Ties 2Teplo-Ties 2Twistfix-301 2

Helical Wall Ties 

The Thor Helical® CD Tie is a patented one-piece stainless steel tie of superlative quality.­  Formed by a process that delivers work-hardened threads, these helical brick ties are designed to deliver fast, consistent results in all types of masonry.­  Installation is excep­ti­onally easy; a tiny 6mm diameter pilot hole is drilled into the walls and the tie is hammered into it using the SDS driving tool.  The oversized threads cut into the masonry as the tie corkscrews into the wall, gripping the masonry on either side of the cavity and locking it in place.  Our helical wall ties have been inde­pen­dently tested and accredited for use in solid bricks, perforated bricks, concrete blocks, aircrete blocks and concrete.

Mechanical Wall Ties 

Our Platinum® range of mechanical ties are available with a choice of expanding neoprene or expanding brass sleeves.  The expanding mechanisms are located at each end of an integral austenitic stainless steel tie bar and a partially-threaded 'tall-nut' is attached at one end.  The ties are inserted into a 10.5mm diameter hole and a drill-powered drive-socket is used to rotate the bar to force open the first sleeve, which grips strongly to the remote masonry layer.  Once a factory-set torque level is reached the 'tall-nut' travels down the tie bar, forcing the second mechanism to expand and grip the wall to form the near leaf connection.

Resin-fix Teplo-Ties

Designed with thermal efficiency firmly in mind, Teplo® Ties are manufactured from a composite of basalt fibres.­  Basalt fibre is a thermally efficient alternative to stainless steel replacement wall ties and are suitable for use in remedial resin-fix appli­cations. This tie has an extremely low thermal conductivity of only 0.7W/mk, making it an ideal option for those looking to insulate the cavity after the walls have been re-tied.­   The tie is resin fixed into 10mm diameter holes to provide an adhesive grip in both wall layers.  By removing thermal bridges, Teplo ties dramatically improve the insulation abilities of masonry while simul­ta­ne­ously reducing carbon emissions. Teplo ties are regarded as the most thermally-efficient replacement cavity tie available.­ 

Screw-in Cavity Ties

Tiger Screw-In Wall Ties are used when the only repair option is to re-build the outer layer of a cavity wall.  The tie has a neoprene expanding mechanism at one end with a traditional triangular shaped tie-wire at the other.  To fit the stainless steel tie you simply require a drill and 8mm drill bit.  The neoprene end is inserted into the hole and the tie is turned by hand to tighten the expanding mechanism.­  The triangle end is simply laid into the mortar beds as construction of the outer layer proceeds.­  These are the quickest and easiest ties to use in partial rebuild appli­cations and require no special tools for instal­la­tion.

Find out more about our compre­hen­sive collection of remedial wall ties on the website. Need help choosing the correct tie? Get in touch with the Twistfix Wall-Tie-Guys for clear, expert advice.

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Compre­hen­sive Weed Control: Our Professional Collection

The combination of longer hours of daylight with those dreaded heavy April showers means that all forms of plant life are currently enjoying a growth spurt in the warmer, wetter conditions.  While this has the definite upside of beautifying our gardens and outdoor spaces, it also hails the beginning of every gardener's worst nightmare: the invasion of the weeds!

Weed control is serious business and requires the use of profes­sional-grade solutions that have been specifically designed for use by profes­si­onals. That's what you'll find here at Twistfix in the dedicated 'Weed Control' section of our website.


Roundup ProActive

The gardener's go-to solution for many years, Roundup ProActive is designed for general use on hardy weeds. One such weed is ivy which, with its quick growth and tangled root and stem system, can damage buildings and trees. Roundup ProActive makes short work of ivy and other hardy weeds growing on hard ground.

Roundup Provantage 480

A more-advanced weedkiller containing glyphosate, Roundup ProVantage 480 can be used to control perennial and annual weeds. Though a powerful formula, it is safe and non-toxic to humans and animals as it disables enzymes only found in green-leaved weeds.

Knotweed Control Treatment

Ground-invasive plants such as hogweed and Japanese knotweed stand no chance against this formidable opponent, supplied in a cost-effective kit containing three packs of weed killing formula. It is essential that such weeds are quickly treated: hogweed causes severe burns and Japanese knotweed is so pervasively damaging that it is illegal to leave it untreated if it is on your property. Use with our specially-designed knotweed injection gun.

Tree Stump and Root Killer Plugs

Tree stumps are at best unsightly and can even pose a danger from tripping if concealed by fresh growth. These highly-effective components comprise a nylon Eco-Plug capsule which, filled with granular glyphosate, are pushed into pre-drilled holes (calibrated drill bit supplied) in the tree stump. The chemical migrates to the root system and destroys it, with no adverse effect on surrounding vegetation.

Find out all the details you need in the 'Weed Control' section of our website and do not hesitate to contact our skilled technical team for further information and usage advice.

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Damp Proofing: The All Cure Total Kit

There is lots of damp proofing work currently available to professional builders and so it's the ideal time to stock up on all of the essential materials you're going to need. Twistfix supply a compre­hen­sive range of damp proofing products, one of which is the All Cure Total Damp Treatment Kit.

The All Cure Total Damp Treatment Kit is used to treat damp walls that are above the level of the ground. As suggested by the name, this product can be used to successfully treat all kinds of damp, its 3-in-1 formula stopping rising damp in its tracks, blocking penetrating damp and reducing conden­sation, which is the leading cause of the issue.

The All Cure Total kit includes six damp injection cream cartridges, which together contain sufficient formula to treat ten linear metres of solid wall or cavity brickwork.  Also included is 10m of mesh membrane which is 1m high: this membrane features 3mm air-gap studs, providing a physical barrier against penetrating damp caused by high pavements of blocked cavities, protecting plastered finishes.

A nylon mesh is incorporated on one face, allowing for plaster or dot-and-dab dry lining to be directly applied. The result is a warmer wall surface, which will better resist the formation of conden­sation.

There are lots of how-to guides available from Twistfix so check out our website and YouTube channel.

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Happy New Year from Twistfix!

As we approach the end of 2018, Twistfix would like to wish all of our customers a very happy new year. We would also like to thank you for your continued custom throughout the year and we look forward to continuing to serve you in 2019.

The time around new year always sees an explosion of construction and renovation work oppor­tuni­ties, driven partly by adverse weather conditions and partly by people wishing to revamp and improve their properties. This means that it's the perfect time for kitting yourself out, replenishing your stock and generally getting prepared for a busy and profitable new year.

Our signature low prices will continue into 2019, as we keep on delivering everything you need to achieve the most professional results, every time. Why not subscribe to our newsletter? You'll be the first to hear about product updates, trade news, handy how-to-guides, exclusive special offers and much more. You can also follow us all year round on your favourite social media platform.

See you next year!

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Crack Stitching: Our Professional Kit

Cracked masonry must be immediately repaired and there is no better way to achieve truly professional results than with the Twistfix Crack Stitching Kit. Designed to offer a compre­hen­sive solution to cracks in block, stone and brick walls, the kit delivers exceptional value for money, making it a constant bestseller here at Twistfix.

The Twistfix Crack Stitching Kit centres on our helical crack stitching bars, which are manufactured using grade 304 stainless steel, a metal renowned for its strength, versatility and resistance to corrosion. Each high-tensile, precision-profiled bar is bonded into pre-cut horizontal slots in bed joints, stitching cracks and restoring structural integrity.

Though any building can suffer from cracked masonry, the problem is most often noticed in older properties. Crack stitching bars are the ideal solution as the retrofit brick rein­for­cement system creates a minimum of disruption during instal­la­tion; as the bars and grout are both totally concealed afterwards, the original aesthetic and character of older buildings is easily preserved.

The contents of the Twistfix Crack Stitching Kit have been selected by remedial masonry experts. Along with the crack stitching bars themselves, the kit contains specialist WHO-60 masonry repair grout, which is used in conjunction with a Grout-Master applicator and Hi-Flo nozzle; these components are also supplied with the kit. A helix mixer paddle and brick jointer completes the contents, making this one of our most cost-effective products.

Find out more about the crack stitching solutions and other brick repair products available from Twistfix on our website.

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Lintel Failure Repair in 10 Easy Steps

A particularly serious structural issue in buildings is that of lintel failure. Most doors and windows have a lintel above, meaning that lintel failure is a common problem whether the lintel is made from brick, steel or concrete.

Problems with lintels usually manifest themselves as diagonal cracks or step cracking in the masonry above doors and windows. Such cracking should be immediately investigated and a remedial plan subsequently developed; failing to address the problem allows it to develop further, leading to costly, intrusive and time-consuming repairs becoming necessary.

Brick lintels may be in the form of a traditional curved arch or of a straight flat arch. Both types masonry arch lintel utilise the compressive strength of the brickwork transfer vertical loads, horizontally to the brick abutments on either side of the opening.­  Oftentimes the underside of the lintel is fortuitously supported by wooden or steel window frames.­  When these frames are removed and replaced with UPVC units the contribution to the support is lost, causing the lintel to sag and the brickwork to crack.

Where window lintels and arches have failed, simply repairing the damage without reinforcing the brickwork can prove futile. By introducing high tensile stainless steel bars into the masonry above the opening it is possible to convert the brickwork itself into a load-carrying beam. This can be achieved quite easily by introducing a pair of Twistfix helical rods into two separate mortar joints above to span the opening and then repointing so that the helical bars are fully concealed.

Installation of helical bars is simple and rapid method of repairing failed lintels; the process can easily broken down into 10 simple steps.

  1. Cut a slot in the horizontal mortar bed directly above the first brick course above the lintel to be repaired; if a brick arch is present, this slot should be cut above the arch's crown. It is essential to cut the slot to the correct depth to suit the thickness of the individual wall.
  2. Remove any mortar or other loose debris, before flushing the joint with plenty of clean water.
  3. Mix the anchoring grout according to the instructions and load it into a pointing gun.
  4. Pump grout into the slot until it is around two-thirds full.
  5. Firmly insert a helical bar, ensuring that it extends 500mm to either side of the window or door below.
  6. Completely cover the helical bar with grout, before clearing the excess.
  7. Introduce a second bar to half of the slot depth, ensuring it is at least 10mm distant from the previous bar.
  8. Fill the slot with grout to appro­ximately 10mm from the surface, making sure that both bars and grout are firmly packed into place.
  9. Repeat the entire process for at a higher level, which should be four to twelve courses above the first (the greater the distance the more the load carrying capacity.
  10. Fill the vertical crack with coloured mortar.
It is vital to source helical bars from a reputable supplier with the appropriate test certi­fica­tion in order to guarantee reliable and durable at a competitive market price. That’s where Twistfix come into the picture. Find out more about helical bars on our website and call us if you need any advice at all.
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Masonry Treatment: Defeating the Moss Menace!

As well as being unsightly, moss can be damaging to tiles and brickwork. When it occurs on floor surfaces such as driveways or patios, it can also pose a safety risk as it makes the surface slippery. Getting rid of the issue is simple with Twistfix Masonry Biocide.

Masonry Biocide

Moss forms as the result of algae and fungi working in partnership: algae nourishes the fungi which, in turn, provides shelter and moisture to the algae. This is known as a symbiotic relationship and is so incredibly successful that moss is found in abundance all over the planet.

Twistfix Masonry Biocide is a powerful and highly-effective treatment designed to completely remove moss, along with algae and lichens. Based on a unique micro-emulsion formula which includes fungicide, the product can also be used to efficiently eradicate mould and dry rot spores.

Supplied as a concentrate, Twistfix Masonry Biocide must be diluted exactly according to the instructions supplied with the product. Once diluted, the concentrate has a high rate of surface coverage and can be applied after simple pressure-spraying or scrubbing in preparation. The mixture can be applied to all kinds of masonry using a simple low-pressure spray.

As when using any construction chemical, it is essential to wear adequate safety gear including goggles, rubber gloves, overalls and respiratory protection. If you need any further advice on using this or any other Twistfix product, we invite you to contact our expert technical team.

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Gutter Cleaning: Our Step-by-Step Guide

Looking after the gutters of a property can save lots of time, work and money. Blocked gutters can create all sorts of problems, including penetrating damp; it is easy, quick and cost-effective to use Twistfix gutter guard to prevent such issues occuring. Before installing the product, it is important to properly clean the gutter and here is the Twistfix step-by-step guide to getting it right.

  1. Making sure you're safe and protected is the number one priority. Start by donning heavy-duty rubber gloves and checking that your ladder is in prime condition. Empty your pockets of any sharp objects. If at all possible, have someone with you at all times.
  2. Make sure you have something to put debris and mulch into. Bin liners or rubble sacks are ideal. Do not attempt to carry a bucket up the ladder with you as this can be dangerous. 
  3. Set your ladder at an arm's length from the wall and climb with caution.
  4. The first step is to start removing the larger pieces of debris. Never reach more than an arm's length to get hold of pieces of debris as this is very dangerous; clear the area you can easily reach before descending and moving the ladder along. Drop filled bags or larger pieces of debris to the ground, being careful to make sure that nobody is beneath.
  5. Then go back along the gutter and remove the buildup of mulch. This is not a particularly pleasant aspect of the job but persevere, it will be well worth it in the end.
  6. The final stage in cleaning the gutter is to wash away any residue. This is best accomplished with the use of a garden hose. Don't forget to spray wayer through the downspouts as well as the main length of guttering.x

Now that your gutter is clean, you can safely and successfully install Twistfix Gutter Guard. This innovative product helps to keep your gutters clear and allow water to flow quickly through, preventing many problems later on.

Find out all the details about Twistfix Gutter Guard on the product page and give our technical team a call if you need any advice.

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The Mould Remover Kit from Twistfix

Damp in properties creates the ideal environment for mould colonies to form, which can be extremely damaging to health. VPS, a major property management specialist, recently issued a warning about the problem which, like asbestos, is classified as a Category 1 Health Risk.

Mould Remover Kit

There are several types of invasive mould, each of which carries its own health risk. One of the most dangerous is aspergillus, the primary component of mildew; if spores are inhaled, a condition called asper­gil­losis can seriously affect health. This condition affects the lungs and sinuses; around 50% of people who contract asper­gil­losis do not survive.

Anthony Owen is the Managing Director of VPS. He said: "Everyone knows that most mould comes from excess water, but what many people don’t realise is that the types of fungi that grow give off mycotoxins that can make people ill. It is classed as a Category 1 health risk, the same class as asbestos.”

Getting rid of mould is easy with the Mould Remover Kit from Twistfix.  It contains our effective biocide spray and also fungicidal additive to protect against further growth. The kit also contains protective gloves and goggles to ensure safety.

Find out more about Twistfix Mould Remover on the website and get in touch with our technical team for further advice and support.

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File… Dont Hesitate to Insulate!

As the weather becomes colder, sales of roofing insulation products are increasing in both the professional and domestic sectors. Twistfix supply a compre­hen­sive collection of insulation products, two of which are explained in more detail below.

SuperQuilt Multi Foil Insulation

Resin-&-FoamSuperQuilt Multi Foil Insulation is a unique, innovative way to keep indoor temperatures at their optimum levels. The product comprises no less than 19 separate layers of foil, brought together in one single, lightweight sheet. Offering unmatched thermal resistance, SuperQuilt effectively reflects infrared heat, keeping out the cold during the winter months. As an added bonus, the product is also effective at keeping out heat during the summer.

The thermal insulation layer is extremely easy to handle, making installation a matter of simplicity. Both quality and user-safety levels are guaranteed thanks to Building Control Certi­fica­tion and a barrage of independent tests. Ideal for either new-build or renovation projects, SuperQuilt Multi Foil Insulation is both versatile and cost-effective.

Roof Loft Insulation Spray Kit

Super-quiltThis compre­hen­sive kit contains everything you need to create a fast, efficient insulation seal. The product comprises a closed-cell polyurethane formula designed to efficiently reduce condensation and heat loss, enhancing the level of thermal performance and protecting against the slippage of tiles.

Both polyol and isocyanate formulas are included in the kit, along with all of the required ancillaries such as nozzles, hoses and a profes­sional-quality dispensing gun. Twistfix also supply a tanks-only kit for re-orders. Protective clothing should be worn when using this product and all usage instructions must be strictly adhered to.

For more information on the insulation solutions available from Twistfix, please call or email our technical support team.

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