Damp Proofing in Knebworth

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Damp Proofing in Knebworth

Extensions such as garage conversions will often require supplementary damp proofing to be installed as part of conversion, as the existing garage will typically have a single skin design for walls and floors, which was not built to comply with building regulations for habitable rooms. This damp proofing will need to be added to walls and floors. Furthermore, the roof of the garage conversion will need water proofing. The damp proofing for the floor of the garage conversion will often be performed by by using a damp proof membrane. This membrane can come in either solid or liquid form. The damp proof membrane will be placed down either on top of the pre-existing concrete floor, underneath the new floor, or as part of both, depending on if the floor will be a solid or a floating floor. In some garages, the walls have been damp proofed, but this may need to be improved as part of the conversion to be able to comply with current building regulations. The walls will need to be damp proofed in order to protect the brickwork from rotting slowly as moisture sets in. This is done by either making use of damp proof membranes, waterproof rendering, or cavity insulation, depending on the type of walls that are already in the garage. Damp proofing is an important part of the building regulations that the garage conversion should adhere to, and so is it vital to ensure that your garage conversion incorporates suitable damp proofing methods.

Average Damp proofing cost in Knebworth

The average cost of Damp proofing is £1500. Costs vary based upon the materials and the organisation selected. The upper price range can be as high as £1725. The material costs are in general about £375

Average price per Damp proofing job in 2025

Avg. price low

Avg. price low
£1,125

Avg. price

Avg. price
£1,500

Avg. price high

Avg. price high
£1,725

£1900

£1425

£950

£475

£0

Prices based on actual Damp proofing costs for Knebworth, as reported by local LeadsDoWork members.

Damp proofing installation cost in Knebworth 2025

Labour cost £1,050
Material cost £375
Waste removal £75
Time frame: 3-5 days

Damp proofing searches in January 2025

Damp proofing Projects in Knebworth in December 2024

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Requests for quotations in Knebworth in December 2024

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Requests for Damp proofing quotations in Knebworth in December 2024. 0% change from November 2024.

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Requests for Damp proofing quotations in Hertfordshire in December 2024. 0% change from November 2024.

Source: Numbers calculated based on the search volumes in major search engines

Damp proofing searches in cities and towns near Knebworth December 2024

Knebworth

Knebworth is a village as well as civil parish in the north of Hertfordshire, England, immediately south of Stevenage. The civil parish covers a location in between the villages of Datchworth, Woolmer Green, Codicote, Kimpton, Whitwell, St Paul's Walden as well as Langley, and includes the village of Knebworth, the little village of Old Knebworth as well as Knebworth House. There is evidence of individuals residing in the location as far back as Neolithic times and also it is pointed out in the Domesday Book of 1086 where it is referred to as Chenepeworde (the ranch belonging to the Dane, Cnebba) with a population of 150. The original village, now called Old Knebworth, created around Knebworth House. Growth of the newer Knebworth village began in the late 19th century centred a mile to the east of Old Knebworth on the brand-new railway station and also the Great North Roadway (ultimately the A1, and now the B197 since the opening of the A1(M) motorway in 1962). At the millenium the architect Edwin Lutyens constructed Homewood, southeast of Old Knebworth, as a dower residence for Edith Bulwer-Lytton. Her child, the suffragette Constance Lytton additionally lived there, until prior to her fatality in 1923. Knebworth has, since 1974, been famously related to many major open air rock as well as pop shows at Knebworth House, including Queen's last real-time efficiency which occurred on 9 August 1986 and drew a participation estimated at 125,000, Lynyrd Skynyrd, Oasis playing to a quarter of a million individuals for 2 nights in 1996 and more lately Robbie Williams, that for 3 evenings in August 2003 done to the biggest crowds ever assembled for a solitary performer. Statistics from UK Census 2011: All Residents: 5,247.

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11 Jan

Building work | Damp Proofing

Knebworth - SG3

Enquiry from: Stephanie W

Start Date: Immediate

We are about to purchase a new home and a number of points have come up in the survey re damp that we would like a specialist to look into and carry out the work. We can provide full details of the r...

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07 Jan

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Knebworth - SG3

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Quite required for a number of areas including adding and lowering a damp course and other potential damp resolve issues around the property, checking for damp in timbers/flooring

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17 Jun

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Construction hearth damp. Damp inside hearth only found due to plinth movement

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27 Mar

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Enquiry from: Jemma R

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I have rising damp in my hallway near the staircase and I also damp near the front door on the opposite wall. There seems to be. lot of damp, even water around the stopcock which is in the same area n...

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13 Mar

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Waltham Cross - EN8

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Damp and musty smell of a converted garage

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16 Feb

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Damp survey on ground floor. Possibly rising damp and separate issue of damp on first floor in one bedroom at ceiling height

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16 Jan

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Potters Bar - EN6

Enquiry from: Gabriella S

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We are potential buyers of this property and have had a survey carried out which has shown elevated moisture content in the front walls of the property below the windows downstairs. We require a thoro...

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13 Jul

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damp spot that has pushed plaster and render from wall on internal wal

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28 Feb

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14 Feb

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06 Feb

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Waltham Abbey - EN9

Enquiry from: Ann M

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black mould on ceiling and wall in upstairs front bedroom are you the property owner: owner of the property how many rooms do you need damp proofing: 1-2 rooms property type: semi detached please cal...

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30 Jan

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Waltham Abbey - EN9

Enquiry from: Ann M

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black mould on ceiling and wall in upstairs front bedroom are you the property owner: owner of the property how many rooms do you need damp proofing: 1-2 rooms property type: semi detached please cal...

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21 Jan

Building work | Damp Proofing

Waltham Abbey - EN9

Enquiry from: James D

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Damp coursing required House is semi detached 2 x walls minimum

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09 Jan

Building work | Damp Proofing

Waltham Abbey - EN9

Enquiry from: Ann M

Start Date: Immediate

black mould on ceiling and wall in upstairs front bedroom are you the property owner: owner of the property how many rooms do you need damp proofing: 1-2 rooms property type: semi detached please cal...

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18 Nov

Building work | Damp Proofing

Waltham Cross - EN8

Enquiry from: Lorna C

Start Date: Immediate

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Inspection of mold and help locating the cause. On a child’s bedroom, outside wall

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13 Oct

Building work | Damp Proofing

Waltham Abbey - EN9

Enquiry from: Korhan G

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damp proof treatment is needed at the entrance of the property

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21 Mar

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Hemel Hempstead - HP1

Enquiry from: Caroline J

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damp proofing in basement

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08 Mar

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Hemel Hempstead - HP1

Enquiry from: Caroline J

Start Date: Immediate

damp proofing in basement

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14 Jan

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Waltham Abbey - EN9

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DAMP ON INTERNAL WALLS IN KITCHEN AND RECEPTION

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21 Dec

Building work | Damp Proofing

Hemel Hempstead - HP1

Enquiry from: Gagan K

Start Date: Immediate

Inspection of damp or leak

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FAQs

How can I tell if my property has damp?

There are a few visible signs of damp, although it often goes undetected. However, in older or empty properties, this made become detectable through its smell. These include peeling paint and wallpaper, crumbling plaster, mould growth, black spots or spores on walls and ceilings, and rotting skirting boards and flooring.

How quickly can I redecorate my walls after damp proofing has been installed?

You should make sure that all signs of damp have gone before you redecorate your walls. If you want to paint your walls with a water-permeable emulsion paint, you can usually do this after 1 or 2 months. For other types of decoration you should wait longer.

How can I tell what type of damp I’ve got?

Signs of rising damp tend to be close to the ground, usually no higher than a metre. It usually works its way up walls in horizontal lines. Penetrating damp usually develops in patches and can often be much higher up. For more advice, speak to a damp proofing professional.

Why is it important to fix a damp problem?

Damp is a serious problem, particularly if you live in an old property, because it can lead to structural damage. This will cost you big money and could be very dangerous, to yourself and the property. Take damp seriously and get it inspected and resolved as soon as you discover it!

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Resolving water ingress and rising damp under a back window wall in Billingham Published: 28/12/2024 Resolving damp and water ingress under a back window wall in Billingham, TS23. Rising damp signs above skirting board and behind wallpaper addressed with expert solutions. Read this article
Damp course and woodworm inspection for a detached cottage in Inverness Published: 26/12/2024 Graham needs a damp course for his small detached cottage in Inverness and a thorough inspection of the loft for potential woodworm. Find out what’s involved in damp proofing and woodworm treatment in Highland Council areas. Read this article
Addressing damp and mould issues in two rooms in Luton Published: 13/12/2024 Solve damp and mould issues in two rooms in Luton with expert damp proofing and water ingress solutions. Learn the causes and treatments for long-term prevention. Read this article

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