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Preservit Ltd

Specialists in Wood Preservation & Damp Proofing
81 Cornwall Road, Tettenhall, WolverhamptonOpening at 07:00Open today until 18:00Opening at 07:00 tomorrowOpening at 08:00 tomorrowOpening at 08:00Open today until 13:00Opening at 07:00 on MondaySorry, we're closed
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DRY ROT (serpula lacrymans)

Feb 7, 2019 – Aug 27, 2019

Dry rot (serpula lacrymans) outbreak in timber subfloor, image taken with iPhone beats torch & mirror survey any day 😁

External render bridging Existing DPC

Feb 7, 2019 – Sep 16, 2019

1920s building with external rendering, this is bridging the existing damp proof course (DPC) causing moisture to bypass and creating low levels of moisture on the internal walls, the external render needs to be removed above DPC level and made good, job done no rising damp just poor thinking πŸ‘

It is important to identify whether timber decay has been caused by dry rot or another wood-destroying fungus such as one of the wet rots. This is because dry rot has the ability to travel through building materials other than timber, giving outbreaks the potential to spread quickly through a bui...

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When is rising damp not rising damp?......when wall plaster has bridged the existing damp proof course (DPC)😀

Buried damp proof course

Jan 30, 2019 – Jul 8, 2019

Timber & damp survey findings, dampness found affecting wall plaster caused by quarry tiled floor laid on a ash substrate with no damp proof membrane (DPM), the existing slate damp proof course (DPC) is buried 25mm beneath the tiled floor causing a bridge and moisture to rise above the existing D...

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Unbelievable....local survey 1960s property, who could do this install a new DPC into the mortar joint damaging the existing Bituminous DPC, the problem was condensation, this is rogue traders at their best.😑

What is Wet Rot?
Wet Rot is a fungus that affects very damp timber. It can also cause decay in plaster, wallpaper and carpets. Wet rot spores are attracted to materials with a high moisture content.

Compared to dry rot, wet rot is less destructive as wet rot remains confined to the wet area onl...

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2 months ago
From start to finish the communication was absolutely great. Some more work was found that also needed doing and this was quickly quoted for and the work done in no time at all. Can't think you enough for the work done and advice given
- guy w
3 months ago
I used Preservit Ltd for treatment of wet rot, damp proofing, replacement of timber floor and plastering. There was always a good response to communications. Geoff arrived on time for the quote appointment and work started on the agreed date. Pleasant and friendly throughout, very good standard of work backed by a guarantee. House was left clean & tidy. Prices as quoted. Very satisfied and will recommend.
- Nick B
3 months ago
Excellent service. Very happy with the work completed. I highly recommend this company
- Amy F

PRESERVIT LTD is a family run business accredited to TRUSTMARKΒ &Β 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


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  • 07957 448684
  • 01902 742461


Get directions
81 Cornwall Road
United Kingdom

Opening Hours

Mon:7:00 am – 6:00 pm
Tue:7:00 am – 6:00 pm
Wed:7:00 am – 6:00 pm
Thu:7:00 am – 6:00 pm
Fri:7:00 am – 6:00 pm
Sat:8:00 am – 1:00 pm