防潮工程要多少钱?

The damp proofing costs in this article are correct as of 2022

Damp is an issue that affects many homes, and causes untold amounts of worry for homeowners, who think that solving the problem will involve complex, messy, and costly work. Thankfully, many cases of damp can be addressed with simple and inexpensive fixes - as long as your tradesperson knows what they’re looking for. If you do have to have more extensive work carried out, to address rising damp for example, then you will want to know the kinds of cost involved. Our guide will show you what you can expect to pay for adamp proofing specialist, so you can get started on your project.

Damp proofing cost calculator

There are three main kinds of damp, and each one will have different causes and different treatments - with a wide range of costs depending on the diagnoses.

Condensation is responsible for lots of cases of damp in modern homes. The result of water vapour condensing when it settles on a cold wall, floor or ceiling, the water can soak into the surface, leading to damp and mould. This moisture can be produced when cooking, showering, or drying clothes indoors, and becomes more common when temperatures drop outside. Modern homes, with good insulation and double or even triple-glazing, tend to trap moisture, meaning steps need to be taken to address the problem.

Luckily, this type of damp can typically be treated with simple lifestyle adjustments that cost very little. Opening windows where possible, making sure you are using extractor fans (and servicing or replacing them if they are not working), keeping a steady indoor temperature, or investing in a dehumidifier should be enough to tackle the issue. If damp and mould have spread, the only relevant cost for tradespeople may be redecorating work.

The second chief cause of damp is penetrating damp - where water outside of the home is coming in and causing damage. This may be due to damaged roof tiles, cracked brickwork, faulty window or door seals, or a broken gutter or pipe. If this is the case, once the problem has been identified, it should be easy to fix, with the cost ranging from £100 or so to replace a roof tile, to £600 to replace a uPVC casement window, plus any redecoration or similar that needs to be carried out.

The third cause of damp is rising damp - where moisture in the earth soaks through the foundations and walls of a house, rising up through the layers or brick and causing damage. Houses are usually built with a damp proof course (DPC), just above floor level, to prevent moisture rising up, but if this has failed, or the property did not have a DPC, then rising damp can occur. Depending on the extent of the rising damp, this can be a more costly and extensive job to repair.

How much does rising damp treatment cost

As physically replacing a DPC is a difficult process that would involve a huge amount of structural work, the most common treatment for rising damp is to install a chemical DPC, removing plaster from internal walls, drilling holes into the walls and inserting a chemical which will form a barrier to more moisture coming up.

Cost of damp proofing internal walls

Much of the cost involved in this comes from replastering a decoration after the process is carried out. Costs vary widely between different areas and different suppliers, but a rough average is around £80 per metre of wall being treated, or around £300 per wall. Across a whole house, the costs may then rise to several thousand pounds if you need to treat every wall. It can be cheaper if you are have the plastering and decorating done separately after the treatment is carried out.

Cost of damp proofing external walls

If the exterior ground level is above the level of the DPC in the wall, the DPC becomes ineffective and water can leach from the soil directly into the walls, causing damp to occur. A simple fix for this is to have the ground outside lowered by digging out the earth, and covering it over, for example with concrete slabs or gravel, to ensure the problem does not reoccur. Digging out the soil around a small house and laying gravel over the top may only cost around £450 to £600. Adding a concrete path may be as much as £2,500 for a smaller home, and twice that in a larger home.

Other damp proofing costs to consider

如前所述，在处理潮湿问题时，准确诊断问题是至关重要的。当遇到严重的潮湿问题时，咨询多个商人并获得报价总是值得的，在开始对上升的湿气进行昂贵的治疗之前，征求几个人的意见。你也可以在把他们的建议给商人报价之前，和一个独立的调查员谈谈，试着诊断这个问题。一些公司试图销售不必要的侵入性和昂贵的治疗方法，防潮行业的名声可能不好，所以如果真的需要，确保你对任何工作都有信心。Tradespeople on MyBuilder都是由以前的客户评价，以帮助您更好地了解他们的体验和质量。