Preservation Treatments (Surrey) Ltd was established in 1972 and, as a Helifix approved installer, have years of experience in providing Structural Repairs in Windsor. If you are looking for a Helifix approved installer in Windsor, call 0800 1422 513 to arrange for a Survey.

Structural cracking, horizontal cracking of bed joints, bowing brickwork, and cracked lintels are all signs that a building is undergoing movement of some description. Causes can include wall tie failures, lintel failures and even natural causes such as tree roots affecting the foundation. Correctly diagnosing the exact cause is essential for suitable remedial work to be carried out.

Preservation Treatments are an approved installer of the Helibeam System, which provides a rapid, cost-effective means of restoring structural integrity to buildings where masonry has failed and lost its load bearing capabilities. In combination with other Helifix ties and fixings it provides a comprehensive, reliable and economic system of repair and stabilisation.

Crack Stitching

Helifix Crack Stitching repairs and stabilises cracked masonry using stainless steel HeliBars bonded into cut slots with HeliBond grout for a quick, simple, effective and permanent solution. Cracked masonry is best stabilised by bonding HeliBar stainless steel bars into suitable bed joints or cut slots. Tensile loads are redistributed along the masonry to minimise further developments of the crack which may occur with simple injection methods.

Cavity Wall Ties

Preservation Treatments offer a versatile and rapidly installed mechanical pinning and remedial tying system that requires no resin, grout or mechanical expansion. Other types of tie are available for specialist applications. For securing delicate terracotta fixings, securing loose render and for securing a soft outer leaf material to a hard inner leaf.

Bulging Walls

The Helifix BowTie is a long stainless steel tie used to stabilise bulging walls, without any external plates, by securing them into the ends of internal floor joists. The BowTie HD is a heavy duty 12mm diameter threaded bar with self-cutting end used to restrain bowing building walls by securing them to internal parallel floor joists or roof beams.

0208 914 8189


01962 706188


01276 66466


Helifix Approved

Preservation Treatments are proud to be an approved installer of the Helifix Helibeam system.

Upon instruction, one of our Helifix approved Surveyors will asses the structural issues affecting your property and will develop a suitable repair strategy. They will provide a full report outlining their findings along with a quotation for the remedial work.

As a Helifix approved installer, this repair strategy will be looked over and approved by Helifix, who, where appropriate, will also offer an insurance backed guarantee.

Industry Recognised

Preservation Treatments are an accredited contractor with the Property Care Association (PCA), Constructionline, CHAS, Safecontractor and Trustmark. We maintain standards within the Industry that each professional body has set.

In recognition of our high standards, Preservation Treatments was proudly awarded PCA Contractor of the Year Award in 2013. Introduced in 2012, this category was designed to recognise PCA contractor members who excel throughout their normal day-to-day business. It is an achievement we are extremely proud of.


  • “Ivan has just left, having done a wonderful job in tanking out our vault.  It looks beautiful.  He was very careful and tidy and considerate in his work, and also extremely pleasant and patient with my questions!”

    Waterproofing, London, Elizabeth – 10th October 2018
  • “Richard was the point of contact I spoke to, he was courteous, informative and outlined the plan of action at the start of each day. They cleaned up very well, I couldn’t fault it. Their work in my humble opinion was of a very good standard and I am well known to be a perfectionist both in and outside of work.”

    Damp-proofing and Specialist Rendering, Redhill, Kevin – 30th May 2018
  • “Your Operative did an excellent job, undertook the work in a clean and tidy manner, and was polite and courteous; he is a great ambassador for all those professional standards PTL aspire to!”

    Damp Proofing and Specialist Rendering, Southsea, Hampshire, Howard – 15th January 2018
  • “Really happy with the completed work. Felt as if I was very capable hands with Preservation Treatments. Right from the initial home visit and survey from Andy, I felt confident with the advise given and the repairs he recommended. The quality of the work is very good, worth every penny. I would recommended the team at PTL and will use them again.”

    Helifix Structural Repairs, Reading, Maria – 9th December 2017
  • “I know from my site visit today our site management team are extremely pleased with your company’s work and the proactive approach to it from your team on site.”

    Damp-proofing, Specialist Rendering and Structural Waterproofing, North-West London, Mark – 21st November 2017
  • “I wanted to report back on the work that your men did this week.

    The tenant in my house was extremely impressed with their professionalism, care and efficiency.

    They prepared the area carefully, worked quickly, and left the premises in amazing condition (considering the nature of the work done).”

    Timber Treatment & Specialist Rendering, South-West London, Bill – 14th November 2017