Damp Proofing Welwyn Garden City

Welwyn Garden City Damp Proofing & Timber Treatment

Damp Proofing Welwyn Garden City Hertfordshire (AL7): It's not simply the fact that problems with damp look unappealing, they can also induce health issues and result in serious structural damages. Peeling wallpaper and nasty damp patches can hide a much more serious problem which, if not solved immediately, could lead to extremely expensive repair bills. If you believe that you might have such damp problems you need to speak to a professional Welwyn Garden City damp proofing specialist to survey your property, and recommend the best damp proofing treatment for your home.

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In Welwyn Garden City dwellings there are 3 main problem areas of how damp can affect your property:

Damp Proofing Welwyn Garden City Hertfordshire (AL7)


  • Penetrating Damp

  • Condensation

  • Rising Damp


The next paragraphs describe what causes such problems with damp in Welwyn Garden City, and the various methods of preventing and solving them.


Typical external factors that may lead to penetrating damp in your home include: cavity wall issues, defective guttering, broken or loose roof tiles and cracks in brickwork. From within, overflowing basins or baths, cracked shower trays and dripping or burst pipes, can lead to penetrating damp. If water continues to soak into the woodwork and walls, the obvious signs with time will be flaking or bubbling paintwork, broken or blistering plaster and damp dark patches on walls.

Wet rot can occur in your roof timbers if you have a leaking roof which is neglected over a period of time. Though it is lucky that wet rot doesn't have an impact on brickwork, in a worst case scenario, you may need to have a new roof installed (extremely costly!) if the timbers of your roof become structurally unsound. An unfamiliar musty odour, a "spongy" feel to your rafters and indications of black fungus growth, could all signify the presence of wet rot.

The means of prevention can be pretty basic, for instance cleaning and checking your guttering and roof for leaks, repointing dodgy brickwork and examining piping for leaks. A professional Welwyn Garden City damp proof specialist will check all these areas to help prevent any future problems, as an integral part of fixing your issues with dampness.


Condensation Damp Welwyn Garden City UK (01707)

One of the most common forms of damp in Welwyn Garden City homes, condensation is very easy to identify. When humid, warm air comes into contact with colder surfaces, tiny droplets of water immediately appear. In places where high humidity is present, such as: bathrooms, boiler rooms and kitchens, it arises because of inadequate ventilation.

To prevent condensation problems, easy strategies include making certain you have sufficient ventilation in the worst affected areas, and wiping away any droplets of water as soon as they arise. This may involve the installation or updating of extractors, cooker hoods and air bricks to help reroute the moist air outside of the building.

The most effective way to find out the main factors that play a role in the situation, is to get a detailed damp proofing survey carried out by a reputable Welwyn Garden City damp proofing company. Sometimes moist air can be drawn in from outside, plainly making things worse. The best way to adequately minimise condensation is to properly regulate airflow, and your local Welwyn Garden City damp proofing company will offer advice and guidance on how this can best be accomplished.

Damp Proofing Quotes in Welwyn Garden City Hertfordshire


A damp proof course has been compulsory on homes constructed in Great Britain since 1875. If your property or home was constructed before this time it's possible you may not have one installed. If your property was constructed after this year, but you are still experiencing rising damp problems, it could be that the DPM has been damaged.

It can be tricky to identify rising damp, however some giveaway indications are; a white powdery deposit appearing on walls or being found on floor surfaces, crumbling or rotten skirting boards and "tide marks" on walls. Whilst the existence of these is not conclusive, they're all indications of rising damp.

Rising Damp Welwyn Garden City Hertfordshire

Solving rising damp issues can be as straightforward as checking your property's exterior walls and seeing if you can spot a damp proof course. In order to get an adequate measure of protection the DPM should be above ground level by at least 150mm (approximately six inches). You can dig the surrounding soil away to generate this gap if it is currently not sufficient, or you could install a damp course higher up if the first option isn't plausible.

You might have more problematic issues if you learn that your damp course is OK, and it could be that the dampness is rising up from the ground, through your flooring, and into your home's walls, which is going to be even more worrying.

Welwyn Garden City damp proofing specialists will swiftly be able to identify the cause of your rising damp issues, and employing a range of methods will quickly deal with the problem. Older homes which either have no damp proof course at all, or have one which is damaged over a substantial area, can be treated with a damp proofing injection cream such as Permaguard. This special cream is injected with a nozzle into holes drilled evenly along the mortar course, and before the cream cures it diffuses into the adjoining brickwork creating a barrier that is repellent to water.

If the deterioration of the damp course membrane is too severe, or if damp proofing cream injection is not a suitable treatment, you may need to install a new damp proof course. Although this is of course a pretty extreme plan of action, it might be the best way to solve your rising damp in an effective way.

Damp Proofing Specialists Welwyn Garden City (AL7)

For smaller areas of damp course damage, yet another possible remedy could be to coat with a waterproof (bitumen based) latex emulsion. This will be applied beneath your current floor coverings, so carpeting, laminate flooring and tiles will have to be lifted before any work can be done. This is especially efficacious in cellar areas as an integral part of the tanking process to create a room that is watertight. Before the bitumen coating has completely dried, your Welwyn Garden City damp proof specialist might suggest the laying of building paper (a special foil backed membrane), for additional protection.

Tanking: In below ground areas like cellars, "tanking" is the process where any exposed surfaces are painted with a watertight coating. This has to be applied at the base level of walls and floors, therefore any plaster and wall coverings must be removed and the surfaces in question prepared properly before any work begins. As soon as this coating has been applied, it must be permitted to dry thoroughly before replastering and decorating over the top of it. This is an incredibly disruptive job as it has to be applied to an entire ground floor or basement level of a building, and it's recommended that you obtain more than one specialist opinion about whether this is the only answer to your rising damp.


Condensation issues can definitely be improved by the use of dehumidifiers, which are an effective way to remove moisture from the air. The issue with dehumidifiers in seeking to stop mould and damp is that they simply alleviate the cause of the damp, not cure it. An experienced damp proofing specialist in Welwyn Garden City will be able to advise on possible solutions if you're suffering from dampness in any part of your house.


The most reliable recommendations for local specialists when it comes to home improvement projects are normally friends and family. Always acquire at least two or three different estimates from various local companies, and if you've got any doubts you can ask to look at professional memberships and accreditations, before hiring any damp proofing services.

Keep an eye out for technicians holding the CSTDB (Certificated Surveyor of Timber and Dampness) or the Certificated Surveyor in Remedial Treatments accreditations, or local companies who are members of the Damp Proofing Association (DPA) or the Property Care Association.

You can guarantee that your damp proofing specialist is properly qualified and has the required practical experience to carry out a first class damp proof service, if they've got membership of the DPA or PCA. Such memberships also means that there are certain guarantees for any remedial work undertaken.

Book a Damp Proofing in Welwyn Garden City UK

Damp proofing can be undertaken in Welwyn Garden City and also in nearby places like: Peartree, Panshanger, Tewin, Hall Grove, Ayot St Lawrence, Ayot St Peter, Woodhall, Tewin Bury Farm, Digswell Water, Harmer Green, Hatfield, Coopers Green, Lemsford, Marden Hill, as well as in these postcodes AL7 1FR, AL7, AL7 1NJ, AL7 1HW, AL7 1GE, AL7 1AX, AL7 1HX, AL7 1DE, AL7 1QQ, AL7 1PF. Locally based Welwyn Garden City damp proofing specialist will probably have the postcode AL7 and the phone code 01707.

Welwyn Garden City Damp Proofing Tasks

Damp Proofing Tasks Welwyn Garden City

There are a wide range of tasks that can be undertaken by your local Welwyn Garden City damp proof specialist including damp proof membranes, commercial tanking, treatments for condensation, damp proofing concrete floors, property surveys in Welwyn Garden City, damp proofing assessments, cavity wall tie replacement, rising damp treatment, woodworm treatments, damp proofing prices, leak detection, japanese knotweed control, efflorescence solutions, black mould treatment, wet rot treatments, damp proofing services Welwyn Garden City, damp proofing surveys, damp proofing solutions in conservatories in Welwyn Garden City, damp proofing brickwork Welwyn Garden City, vapour barrier installation in Welwyn Garden City, mould treatments, damp control, damp proofing a basement Welwyn Garden City, landlord damp proofing services Welwyn Garden City, structural waterproofing, commercial damp proofing Welwyn Garden City, plaster replacement, damp course installations in Welwyn Garden City, and more.


Damp Proofing Near Welwyn Garden City

Also find: Peartree damp proofing, Lemsford damp proofing, Harmer Green damp proofing, Tewin damp proofing, Coopers Green damp proofing, Hatfield damp proofing, Woodhall damp proofing, Marden Hill damp proofing, Ayot St Lawrence damp proofing, Tewin Bury Farm damp proofing, Panshanger damp proofing, Digswell Water damp proofing, Ayot St Peter damp proofing, Hall Grove damp proofing services and more.

Damp Proofing Services Welwyn Garden City

Find Damp Proofing Services in Welwyn Garden City Here
Damp Proofing Estimates in Welwyn Garden City Hertfordshire (01707)
  • Welwyn Garden City Condensation Prevention
  • Welwyn Garden City Mould Treatment
  • Welwyn Garden City Woodworm Treatments
  • Welwyn Garden City Dry Rot Treatment
  • Welwyn Garden City Cementitious Tanking
  • Welwyn Garden City Damp Proofing Services
  • Welwyn Garden City Domestic Damp Proofing
  • Welwyn Garden City Wet Rot Treatments
  • Welwyn Garden City Timber Treatments
  • Welwyn Garden City Basement Waterproofing
  • Welwyn Garden City Damp Proofing Estimates
  • Welwyn Garden City Industrial Damp Proofing
  • Welwyn Garden City Dampcourse Installation
  • Welwyn Garden City Damp Proof Surveys

Around Welwyn Garden City

Some Welwyn Garden City streets and areas where damp proofing work has recently been done - The Cloisters, Digswell House, Summer Dale, Boundary Court, Chelveston, Sewells, Stanborough Close, The Quadrangle, Batford Close, Thistle Grove, Andrewsfield, Dognell Green, Amwell Common, Smallcroft, Stoneycroft, Creswick Court, South Ley, South Mundells, Bassingburn Walk, Ashley Close, Stanborough Green, Brocket Road, Copperfields, Chalk Dale, The Paddocks, Cowslips, Daye Mead, The Spinney, as well as these Welwyn Garden City area postcodes: AL7 1FR, AL7, AL7 1NJ, AL7 1HW, AL7 1GE, AL7 1AX, AL7 1HX, AL7 1DE, AL7 1QQ, AL7 1PF.

For the best local information on Welwyn Garden City, Hertfordshire look here

Professional damp proofing in AL7 area, telephone code 01707.

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(This damp proofing Welwyn Garden City article was checked and updated on 19-05-2022)