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Preservit Ltd

Specialists in Damp proofing, Woodworm treatment, dry rot, Penetrating damp.
Open today until 17:00
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Wood boring weevil doing its normal stuff in poor ventilated timber floor voids due to damp/humid conditions.
No treatment here just rip out and replace with treated timber & of course sort out ventilation.
Identification is important as treatment is not necessary for certain wood boring insect...

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Latest findings on damp proofing survey shows high moisture relative reading to wall fabric due to few possibilities. Rising damp was ruled out due to visual evidence of a slate damp proof course to wall in question. We had a good idea what is causing the high read...

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Understanding External Humidity’s Effect Indoors

During hot humid weather, many of us open windows and doors for fresh air. However, this can have unintended effects indoors, especially with cool internal walls.

Condensation Explained:
Warm air holds more moisture. When this humid air meets coo...

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Damp proofing survey findings:
No evidence of damp proof course (DPC) previous contractor said needs the works due to rising damp🤔 so with my trusted hammer i found as expected a slate DPC, ok some work needed to get it up and running but it’s a start. Next need to inspect adjacent timber floor ...

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The advantages of Invasive Surveys: A Holistic Inspection Approach: 🏠

Property inspection, the debate between invasive and non-invasive surveys is a persistent one. While both have their respective merits, there’s a case to be made for the inspection of invasive surveys. Here’s why:

Depth of ...

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Our latest findings on damp proofing using thermal imaging cameras, our experienced surveyor identified areas on sloping ceilings that displayed a distinct blue pattern. This is an indicator of thermal bridging.
Thermal bridging in this case occurs due to a lack of adequate insulation. When heat ...

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Black mould around windows can be caused by a combination of moisture and organic material, creating the ideal environment for mould growth. Here are the primary reasons for mould formation around windows:

Condensation: Windows, especially single-glazed ones, are often co...

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Latest damp proofing survey findings: loose/missing mortar, a concrete step, and poor sealant around door frames leading to external penetrating damp. Our suggested repairs include repointing mortar joints, re-sealing the door frame, and sealing the edges of the concrete step. It’s important to a...

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A Crucial Difference: Dry Rot Vs. Mine Fungus - Our Latest Findings

On our latest timber and damp survey, we uncovered yet another mis-diagnosis, this time between Dry Rot (Serpula lacrymans) and Mine Fungus (Fibroporia Vaillantii). Though they may appear similar at a glance, the differences bet...

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6 months ago
We highly recommend Preservit. Geoff came and surveyed our rising damp issue (no charge for this) and clearly explained what was needed. He kept in regular touch regarding times and dates and always arrived as arranged. The work was carried out in as unobtrusive a way as possible with care and attention to tidiness and minimising of mess. We are very pleased with the quality of the work and highly recommend you give Geoff a call.
4 years ago
A great company to do business with all-round. Highly recommended!
10 months ago
Geoff was extremely helpful and professional, he came out to look at the issue I had with a damp wall promptly. He diagnosed the problem and within a few days was able to rectify the root cause by injecting a DPC and plastering the wall. The price was very competitive and Geoff was extremely knowledgeable about the problem and how to fix. There was no mess left afterwards and follow up aftercare was really good. Excellent service all round, very friendly and would highly recommend!
- Matt H

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.

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Call now
  • 01902 655563
  • 07957 448684


Get directions
5 Mount Road
Tettenhall Wood

Opening Hours

Mon:9:00 am – 5:00 pm
Tue:9:00 am – 5:00 pm
Wed:9:00 am – 5:00 pm
Thu:9:00 am – 5:00 pm
Fri:9:00 am – 5:00 pm
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