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Preservit Ltd

Specialists in Damp proofing, Woodworm treatment, dry rot, Penetrating damp.
Opening at 08:00
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Sub-floor ventilation

Sep 17, 2019 – Aug 19, 2020

Sub-floor ventilation......
If you take a look at the exposed elevations of a property you will often see airbricks at or around internal floor level, though these are mostly found in older properties, they are there to provide ventilation to a timber floor structure and commonly function by allo...

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Timber & Damp surveys

Sep 17, 2019 – Sep 8, 2020

Our approach to damp control and timber preservation starts with a survey undertaken by one of our highly experienced team of surveyors. This allows us to develop an understanding of the underlying cause of any problems we identify and the way the problems sometimes interact. we provide a written...

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Dryzone Damp-Proofing Cream


Preservit Ltd are installers of Dryzone Damp-Proofing Cream: This is a patented high-strength silicone-based cream that is injected into holes drilled at regular intervals along a mortar course. Once injected, the cream diffuses along the mortar course before curing to form a breathable water-rep...

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A damp chimney breast problem can present itself in a number of different ways and for a number of different reasons. Some signs include brown plaster staining on your chimney breast or you might have damp patches on your chimney breast that come and go.

Other visual signs can be a damp chimney...

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Damp survey findings on property renovated few years ago damp stained plaster has been caused by incorrect re-plastering to damp walls also the wall plaster is in contact with the solid floor which is bridging the existing DPC causing moisture to wick up from the floor/wall joint.

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Damp proof course bridging helping moisture bypass the existing DPC, affected wall plaster removed and re-plastered to a high standard.

Fender walls causing dampness

Sep 10, 2019 – Jun 2, 2020

The construction of these in pre-Victorian & Edwardian buildings are unlikely to have a physical horizontal dampproof course in the support walls below floor level, called the fender walls, these can "wick up", or draw up dampness from the ground below floors and introduce dampness on the walls o...

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Wet rot is a type of fungal decay that is caused by underlying damp, ventilation or condensation. Rooms with incorrectly ventilated sub-flooring or lofts tend to be common areas for decay. Various types of timber structures are potentially suceptible to a fungal attack. Wet rot infestations start...

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Specialists in timber preservation & damp proofing

  • Damp proofing

    Damp Proofing is a method of moisture control that prevents the buildup of damp within floors and walls throughout a residential or commercial property. One of the main causes of property damage throughout the UK is untreated underlying moisture, which can cause a variety of problems such as dry rot, wet rot and penetrating damp. Your home or business could suffer from serious structural damage if there are signs of damp that remain untreated for a length of time … so It is vital to eliminate the problem at the earliest possible stage!
  • Woodworm

    Woodworm is a collective term used to describe all the insects and pests that attack and feed on wood and timber.While there are a number of wood-boring insects, Common Furniture Beetle remains the most commonly found woodworm in the UK. It attacks soft wood structure, impacting its strength and stability.Other species that may attack timber structures include:House Longhorn BeetleWood Boring WeevilDeath Watch Beetle
  • Dry rot

    Dry rot is caused by a wood destroying fungus that impacts the strength and integrity of the wooden structure. Without the correct wood rot treatment, dry rot can progress very rapidly, leading to a rot outbreak. Dry rot can occur in any part of the home where there is moisture or dampness present. At Preservit Ltd., we have a team of experts who have an extensive experience in dry rot treatments. Our experienced professionals use their specialised expertise to locate the problem, determine its severity, and use a suitable dry rot treatment to eradicate fungal growth.
  • Penetrating damp

    Penetrating damp, which is also known as ‘rain penetration’, lateral penetration of damp through walls, roofs, windows, or doors.If left untreated, this can lead to more severe issues, such as wood rot, frost damage, and unsightly water marks on internal and external walls.What Causes Penetrating Damp?From leaking pipes to cracks in external walls, penetrating damp can be caused due to a variety of reasons. Some of the most common causes include:Defective roof coveringsPoorly installed windows and door framesCracked brickworkDefective guttering and downpipes
  • Wet rot

    Wet rot is a type of fungal decay that is caused by underlying damp, ventilation or condensation. Rooms with incorrectly ventilated sub-flooring or lofts tend to be common areas for decay. Various types of timber structures are potentially suceptible to a fungal attack. Wet rot infestations start when moisture or water comes in contact with timber for sustained periods. This enables the fungus to spore, resulting in the wet rot penetrating the wood and causing potential major damage.
  • Free surveys are available, fees do apply for new mortgages FROM

    Remedial work carried out to a very high standard


a week ago
Geoff was extremely professional from the off and made you feel reassured that you had chosen a reputable company. Works carried out as per the quote given to a high standard and thumbs up to the clear up afterwards!
- Wayne T
3 months ago
Preservit is an excellent, highly reliable company. They are trustworthy and do work at a reasonable price. I would definitely recommend them to anyone!
- Amy F
3 months ago
Just moved to the Wolverhampton area and needed damp proofing services urgently. Preservit were prompt, reliable and most importantly, solved the problem with minimum fuss at a very reasonable price. Highly recommended!
- Stewart D

Damp proofing, Woodworm treatment,

PRESERVIT LTD is a family run business accredited to TRUSTMARK & FAIRTRADES we are also members of CHECKATRADE, HOMEPRO and CGS who can offer our customers a GPI INSURANCE BACKED GUARANTEE

With over 40 years’ experience and 22 years in business we offer a friendly reliable and trustworthy service. Situated in Tettenhall, Wolverhampton, we pride ourselves on the correct diagnosis for dampness and timber decay, we give competitive prices on all work with a 20 year guarantee.

Timber & Damp Reports: Our surveyors will inspect the property and identify the causes of dampness and timber defects before providing you with a report of our findings. If treatment is required, we will provide a detailed quotation explaining the nature of the proposed works along with a clear quotation.

TRUSTMARK is the only Government endorsed scheme for trades in and around the home, they award registered firms with their accreditation after thorough vetting and on-site inspections to ensure the firm is raising industry standards.
This accreditation gives customers reassurance of quality and protection from rogue traders.

We are members of CGS who can offer all our customers an Insurance Backed Guarantee (IBG) through GPI who are an authorised and regulated UK insurer,


Have you noticed a small patch of damp on your walls or floor or stained or perished wall plaster? Or maybe you can’t get rid of that damp musty smell in a room? These could be signs of a rising damp problem, and if left untreated, it may lead to mould growth and damage timber structures in your home.
If you are in doubt about the presence of rising dampness within your property, Preservit Ltd. can help. We will perform a thorough rising damp survey to examine your property and identify the source of rising damp and use a suitable damp proofing technique to eradicate the problem for good.

To avoid Wet & Dry Rot regular upkeep and maintenance is essential to ensure the comfort and curb appeal of any home. However, in spite of regular care, fungal infestation may damage the wooden structure of your building. If left untreated, fungal decay may lead to a structural failure of floor and roof timbers.
At Preservit Ltd., we specialise in dry and wet rot treatments. Utilising our deep expertise and moisture meters, we not only locate dry or wet rot, but also eliminate the underlying cause of the outbreak. To restrict the damage, our experts replace defective timber and undertake repairs where necessary to ensure optimal structural strength and stability.

Woodworm can be a major issue to both households and businesses that if left untreated can lead to major structural damage to a building and compromise the safety and wellbeing of its occupants.At Preservit Ltd., we offer targeted woodworm treatment services to eradicate any kind of infestation in a cost-effective manner.

Have you noticed patchy black mould appearing on an internal wall? Or a watermark has suddenly appeared on the masonry? Patchy black mould, watermarks, damp musty smell, and damage to wall plaster roofing and timber are all signs of a penetrating damp problem.
Let Preservit Ltd. conduct a damp proofing survey and help you determine what might be saturating your walls with water.Depending on the underlying cause and the extent of damage, we will then employ a suitable damp proofing treatment to prevent future moisture from penetrating into your property.

Condensation is the most common cause of damp problems in both homes and offices. It is caused by air condensing on internal walls, particularly in rooms with a lot of moisture, such as bathrooms and kitchens.
If you are noticing damp in your home or office, don’t worry. Preservit can help you identify the cause of condensation and take necessary measures to manage and prevent condensation from damaging the aesthetics and comfort of your home.

Contact Us


Call now
  • 07957 448684
  • 01902 742461


Get directions
81 Cornwall Road
United Kingdom

Opening Hours

Mon:8:00 am – 5:00 pm
Tue:8:00 am – 5:00 pm
Wed:8:00 am – 5:00 pm
Thu:8:00 am – 5:00 pm
Fri:8:00 am – 5:00 pm
Sat:8:00 am – 5:00 pm
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