Damp Proofing Harrow

Harrow Damp Proofing & Timber Treatment

Damp Proofing Harrow Greater London (HA1): Damp problems in your property in Harrow not only look unattractive, but they can also lead to major structural and health issues too. If not dealt with swiftly, the more serious problems could cost you 1000s to repair, and may be hard to spot beneath peeling wallpaper and patches of damp. It is much more cost effective in the long run to call in an experienced Harrow damp proofing specialist to assess your house, and offer a complete damp proofing treatment for your property.

Free Harrow Damp Proofing Quotes

There are basically three primary problem areas which are likely to cause dampness in your property in Harrow:

Damp Proofing Harrow Greater London (HA1)


  • Penetrating Damp

  • Condensation

  • Rising Damp


In paragraphs that follow, we'll take a look at what leads to such damp problems, and how you can set about resolving them, and preventing them from happening in the first place.


A few of the external issues that can cause penetrating damp in a structure include: damaged drainpipes or gutters, loose or cracked roof tiles, blocked cavities and porous brickwork. Internal causes of penetrating damp could be overflowing bathtubs or basins, cracked shower trays and leaking or burst water pipes. Woodwork and walls can be affected if left unresolved, and will be visible as damp, dark patches on walls, peeling or bubbling paintwork and broken or blistering plaster.

If you've got a leaking roof that has been neglected for a while, your roof timbers can be stricken with wet rot. Even though it is lucky that wet rot doesn't affect brickwork, in the worst case scenario, you may need to get a new roof (very costly!) if your roof timbers become unsound structurally. An unfamiliar musty smell, a "spongy" feel to your rafters and the appearance of black fungus, could all indicate the presence of wet rot.

The measures for prevention can be quite basic, for example cleaning your guttering & roof and checking for leaks, examining water pipes for leaks and repointing brickwork. If you contact a certified damp proofing service in Harrow, they'll check all these areas, and put a plan together for both solving your damp issues and forestalling further occurrences.


Condensation Damp Harrow UK (020)

One of the most common forms of damp within many homes in Harrow, condensation is super easy to spot. Water forms as tiny droplets on a cold surface, when humid, warm air makes contact with it. Where a high level of humidity is present, as in kitchens, boiler rooms and bathrooms, condensation is often caused by poor ventilation.

To reduce condensation problems, simple solutions include making sure there's adequate ventilation in the affected areas, and wiping up any droplets whenever they form. You may need to upgrade or fit air bricks, extractors and cooker hoods, so as to redirect excess humid and moist air from your property in Harrow.

To find things which play a role in the situation by drawing in damp air from outside, a professional Harrow company will undertake an exhaustive damp proofing survey. Airflow and circulation has to be properly regulated to effectively control condensation, and a professional damp proofing technician will be able to offer advice and solutions on this matter.

Damp Proofing Quotes in Harrow Greater London


Homes built since 1875 in Great Britain have required a damp proof course or membrane to be installed as standard. If your home or property was built before this period it's conceivable that you may not have this installed. It's a possibility that your damp proof membrane might have been damaged in some way if you are experiencing rising damp issues in a home built after this date.

Although tricky to distinguish, crumbling or rotten skirting boards, tide marks on walls and white powdery deposits being discovered on floor surfaces or appearing on walls, are all giveaway clues that you might have rising damp. Whilst the existence of these isn't conclusive, they are all clear indications of rising damp problems.

Rising Damp Harrow Greater London

Just checking your property's exterior walls to spot if you've got a damp proof course can be one step towards solving your rising damp. It needs to be 150 millimetres above the level of the ground for adequate protection. If this isn't the situation you might be able to dig the ground away to generate this space, or if this isn't plausible, you could install a damp course higher up.

If this isn't the problem and your DPM is in order, there might be more problematic issues to resolve caused by the moisture coming up from the ground, up through your floor, and into your walls.

Damp proofing professionals in Harrow can quickly identify and resolve rising damp using a number of different methods. If you've got an older home with no damp proof membrane or one that's damaged over a significant area, a damp proofing cream (such as Permaguard or Dryzone) can be injected into your walls. This cream is injected with a special nozzle into holes drilled at intervals along the wall's mortar course, and before the cream cures it diffuses into the adjoining brickwork creating a barrier that is repellent to water.

In situations where damp proofing cream injection is not a suitable treatment, or when the DPM is extensively damaged, putting in a complete new damp proof course could be neccessary. While this level of repair work is a fairly extreme way to solve damp issues, it may be your only effective solution in the end.

Damp Proofers Harrow (HA1)

Painting with a waterproof (bitumen based) latex emulsion, is yet another possible option for less severe areas of damage. This will be applied beneath your current floor coverings, so wooden flooring, carpeting and tiles must be lifted before any work is done. In cellar areas this is an especially effective treatment, and will form an integral part of the "tanking" process which is used to make spaces watertight. For extra protection in those trouble spots, your Harrow damp proofing specialist might recommend laying building paper (a specialist foil backed membrane) before the bitumen paint has completely dried out.

Tanking: The process of coating exposed surfaces with a watertight paint in a cellar or below ground area is known as "tanking". Any wall covering and plaster must be taken off and the relevant surfaces prepared correctly before any work begins, since this coating has to be applied on the base surface of floors and walls. As soon as this coating has been applied, it must be permitted to dry out thoroughly before replastering and decorating on top of it. You should always obtain more than one specialist's opinion about whether this is really the only resolution to your damp problems, because this is a very disruptive process since it needs to be applied to a whole basement level or ground floor of a property.


Condensation issues can definitely be improved by the use of dehumidifiers, which are an effective way to remove moisture from the air. The main disadvantage with the use of dehumidifiers in trying to stop damp is that they merely mask the cause of the damp, don't cure it. If you are suffering with dampness in any part of your property in Harrow, you should call on an experienced damp proofing specialist for the best advice.


As with just about any home improvement project, the most trustworthy recommendations for a professional can be gleaned from friends and family. Before employing any damp proofing services, always try to get at least 3 or 4 estimates from different Harrow companies. If you've got any doubts about any particular damp proofing company you should ask to look at professional membership certificates and qualifications.

Professional Harrow damp proofing companies should be signed up members of either the Damp Proofing Association or the Property Care Association (PCA), or have accreditations from the CSRT (Certificated Surveyor in Remedial Treatments) or the Certificated Surveyor of Timber and Dampness (CSTDB).

You can be sure that your damp proofing provider is suitably qualified and has acquired the required experience to provide you with a first class damp proof service, if they are members of either the PCA or DPA. Any damp proofing work carried out by any one of their members is also guaranteed.

Book a Damp Proofing in Harrow UK

Damp proofing services are available in in Harrow and also in nearby places like: Roxeth, South Harrow, Wealdstone, Harrow Weald, West Harrow, Greenhill, Kenton, Harrow on the Hill, Rayners Lane, Burnt Oak, Belmont, North Wembley, North Harrow, and in these postcodes HA1 1TN, HA0 3TD, HA1 1US, HA1 1YF, HA1 1RT, HA1 1AS, HA1 1PB, HA1 1YW, HA1 1XY, HA1 1TE. Locally based Harrow damp proofers will most likely have the telephone dialling code 020 and the postcode HA1. Verifying this can guarantee you access local providers of damp proofing. Harrow householders are able to benefit from these and lots of other damp proofing services.

PIV (Positive Input Ventilation)

Positive Input Ventilation (PIV) may be the ideal solution for eliminating damp problems within your house in Harrow. If you have noticed mould and damp in your property or condensation around the windows then Positive Input Ventilation can help by reducing the humidity. It accomplishes this by constantly circulating fresh air. This continuous refresh and replacement of the air inside your house increases air quality, reduces odours and pollutants and has been proven to enhance the day to day life of asthma and allergy sufferers by reducing dust mite allergens in the air. One thing about PIV systems is that they work best when installed in a loft, and your house does need to be relatively airtight. Air, like water, will take the path of least resistance, and any gaps and spaces in doors or windows will let the fresh air get out, while bringing possible polluted air in from the outside.

Woodworm Treatments

Woodworm is a common issue that can cause significant damage to furniture, wooden structures, and other objects. The larvae of certain kinds of beetles feast on the timber, causing it to weaken and deteriorate over the years. Nonetheless, there are a number of ways to treat and prevent woodworm infestations.

The initial step in woodworm treatment is to identify the type of beetle that is causing the problem, as different types require different treatments. A woodworm specialist can carry out a thorough inspection to assess the extent of the infestation and propose the best course of action.

When it comes to treating woodworm, insecticides are one the most effective solutions, and these can be applied in liquid or gel form. These treatments seep into the wood and eliminate the larvae. This method is most effective for minor infestations, and a specialist can determine whether this is the most effective option. For infestations that are more severe, fumigation may be the answer. This involves sealing-off the affected area and discharging a gas into the space to kill off the larvae. Fumigation is a more invasive treatment, however it is often the most effective option for more substantial infestations.

Preventing future woodworm infestations requires creating an environment that is not favourable for their growth. This can be achieved through appropriate management of the surroundings, including ensuring proper ventilation, regulating humidity levels, and addressing any current woodworm infestations as soon as they are detected. By adopting these proactive measures, one can effectively mitigate the risk of woodworm damage and the associated costs.

Arriving Next:

Rendering repairs.

Harrow Damp Proofing Tasks

Damp Proofing Tasks Harrow

There is a variety of work that can be completed by your local Harrow damp proofing specialist including treatments for rising damp, japanese knotweed control, rendering repairs, damp proof sealing in Harrow, concrete damp proofing Harrow, damp proofing concrete floors Harrow, rising damp advice in Harrow, flood defence, basement damp proofing Harrow, solving condensation problems in Harrow, cementitious tanking, damp proofing old stone walls Harrow, residential damp proofing Harrow, invasive weed control, damp proofing inspections, damp proof coursing, damp proofing prices in Harrow, chemical DPC injection Harrow, cavity wall construction, brick damp proofing, foundation damp proofing, pressure grouting in Harrow, replacement of faulty flashingsDPC Harrow, dampcourse installation in Harrow, timber preservation, the treament of efflorescence, damp proof tanking Harrow, commercial tanking, cellar tanking Harrow, mould treatments Harrow, black mould treatments in Harrow, retaining wall damp proofing Harrow, damp proofing a garage, wood rot treatments, wet rot control in Harrow, and more. These are just an example of the duties that are undertaken by those doing damp proofing. Harrow providers will be happy to inform you of their whole range of damp proofing services.


Damp Proofing Near Harrow

Also find: West Harrow damp proofing, South Harrow damp proofing, Harrow Weald damp proofing, North Harrow damp proofing, Burnt Oak damp proofing, North Wembley damp proofing, Kenton damp proofing, Roxeth damp proofing, Greenhill damp proofing, Rayners Lane damp proofing, Wealdstone damp proofing, Harrow on the Hill damp proofing, Belmont damp proofing services and more. All these places are catered for by companies who do damp proofing. Harrow homeowners can get damp proofing quotations by clicking here.

Damp Proofing Services Harrow

Find Damp Proofing Services in Harrow Here
Damp Proofing Estimates in Harrow Greater London (020)
  • Woodworm Treatments
  • Cementitious Tanking
  • Condensation Treatments
  • Cellar Waterproofing
  • Timber Preservation
  • Damp Proofing Estimates
  • Residential Damp Proofing
  • Dry Rot Treatment
  • Mould Treatment
  • Damp Proofing Services
  • Damp Proofing Surveys
  • Wet Rot Treatments
  • Timber Treatment
  • Dampcourse Installation
Greater London Damp Proofing Near Me Harrow

More Harrow Tradespeople: Obviously, whenever you're doing home repairs and improvements in Harrow, Greater London, you'll likely be in need of all kinds of different tradesmen and along with a damp proofer in Harrow, Greater London, you could also need loft conversion in Harrow, SKIP HIRE in Harrow, plumbers in Harrow, waste removal in Harrow, bricklayers in Harrow, brick & stone cleaning in Harrow, a building contractor in Harrow, a painter & decorator in Harrow, scaffolding in Harrow, polished concrete in Harrow, a handyman in Harrow, home insulation in Harrow, a carpenter in Harrow, a tiler in Harrow, rendering in Harrow, solar panel installation in Harrow, floor renovation in Harrow, and other different Harrow specialists.

To get local info about Harrow, Greater London take a look here

Specialist damp proofing in HA1 area, and dialling code 020.

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(This damp proofing Harrow page was last updated on 18-03-2023)