Nordic Damp Proofing provides professional damp surveys, damp proofing services, mould treatment, condensation control, timber preservation and waterproofing services across Berkhamsted and the surrounding Hertfordshire area.
We work with homeowners, landlords, letting agents, property managers and commercial clients across Berkhamsted, Northchurch, Potten End, Ashridge, Wigginton, Little Gaddesden, Tring, Boxmoor, Hemel Hempstead and nearby villages.






We Find It. We Treat It. We Stop It Coming Back.
We provide damp surveys and treatment services throughout Berkhamsted and nearby Hertfordshire and Buckinghamshire areas, including Berkhamsted, Northchurch, Potten End, Ashridge, Wigginton, Little Gaddesden, Great Gaddesden, Dudswell, Cow Roast, Tring, Aldbury, Marsworth, Boxmoor, Hemel Hempstead, Bovingdon, Chesham, Amersham and surrounding areas.
Postcodes covered include HP4, HP1, HP2, HP3, HP5, HP6, HP23, WD4 and surrounding Hertfordshire and Buckinghamshire postcode areas.
We also cover the wider areas we cover network, including nearby Hemel Hempstead damp proofing, Tring damp proofing, St Albans damp proofing, Rickmansworth, Chorleywood and Buckinghamshire.
A damp survey helps identify the cause of moisture before any damp proofing, mould treatment or timber repair work is recommended.
In Berkhamsted properties, damp can be linked to older construction, canal-side or lower-ground conditions, condensation, leaking gutters, defective rooflines, damaged brickwork, cracked render, failed pointing, raised external levels, leaking pipes, blocked ventilation, bridged damp-proof courses or moisture affecting timber.
Damp symptoms are often misleading. A patch near the floor may be rising damp, but it could also be caused by a raised patio, leaking pipe, blocked airbrick or water entering from outside. Mould in a bedroom may be condensation, but it could also be made worse by a cold damp wall or poor airflow behind furniture.
Our surveyors check the building as a whole. We look at internal symptoms, outside defects, wall condition, moisture patterns, ventilation, ground levels, rainwater goods and any signs that timber may have been affected.
Where the source is harder to trace, we may recommend our survey and diagnostic services.
Berkhamsted has a varied mix of homes and buildings, from historic town centre properties and cottages to canal-side houses, family homes, flats, rentals, commercial buildings and modern extensions.
Because property types vary, damp can show up in different ways. A canal-side or lower-lying property may need checks for drainage, ground levels and waterproofing. An older home may have chimney breast staining, salt contamination, timber floor moisture or weathered masonry. A flat or rental property may suffer from black mould where airflow and ventilation are not working properly.
For older properties, our guide on how moisture moves through period properties may be useful. For recurring problems after previous work, read our guide on how to stop damp returning after treatment.
Choosing a specialist damp proofing company means the cause of the issue is investigated properly before treatment is recommended.
All reviews4.9![]()
Trustindex4.0
Bark5.0
Checkatrade9.6Excellent4.9185 reviews
4.9Excellent185 reviews
Excellent4.982 reviews
4.9Excellent82 reviews
Good4.01 reviews
4.0Good1 reviews
Excellent5.012 reviews
5.0Excellent12 reviews
Excellent9.690 reviews
9.6Excellent90 reviewsPosted on Google![]()
JTrustindex verifies that the original source of the review is Google.
Jamie did an excellent job of fixing damp at my house. He fixed the issues quickly and on time. He plastered to a very high standard. He left the house clean of dust and was a pleasure to have here. would definitely recommend.Posted on Checkatrade![]()
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Trustindex verifies that the original source of the review is Checkatrade.
A good company to deal with Everyone I dealt with at NDP was charming and pleasant. NDP investigated and addressed a problem with damp in my utility room. As the issue was not run of the mill, NDP sent two people (Daniel & Harvey) to assess the issue before deciding on a treatment programme. Toby & Jack spent two days addressing all possible causes and, at this stage, it seems the works have successfully addressed the problem. I contacted NDP about a couple of things afterwards and Lydia was very helpful and efficient and sent Ryan to assess and address the issues at the earliest opportunity.Posted on Google![]()
Angus AudenTrustindex verifies that the original source of the review is Google.
Thanks to Ryan who worked internally inside the house on issues that were highlighted in the survey that was completed by Daniel. He got the jobs done efficiently. Also thanks to Jack who worked externally including part of the roof that needed doing before the winter weather hits. Again done efficiently!Posted on Google![]()
James PriceTrustindex verifies that the original source of the review is Google.
Excellent service, excellent price, really happy with the work completed.Posted on Checkatrade![]()
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Trustindex verifies that the original source of the review is Checkatrade.
Mould Treatment Great experience from Nordic. Starting with the survey from Dan, through the project liaison with Lydia and Erin, through to the professional completion of the job from Ryan. Would recommend Nordic!!Posted on Google![]()
Suzi AndersenTrustindex verifies that the original source of the review is Google.
Very professional company who were proactive, friendly and very responsive. I felt confident that they would offer a great service, and they did. Toby was very cheerful, knowledgeable and very careful with our property. He cleared up beautifully when he'd finished plastering. Jack was also knowledgeable and suggested alternatives for our guttering, which we were appreciative of. He did an excellent job. The office staff (Lydia) were bright and bubbly and were very responsive, which made the process run smoothly and as painless as possible. I would recommend this company without hesitation as I felt they went the extra mile.Posted on Checkatrade![]()
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Trustindex verifies that the original source of the review is Checkatrade.
Nordic - when you want a job well done! From the first telephone conversation, through to the end of the project, the quality and professionalism of the company stood out. Site visits were undertaken before the work began, and after the work was completed, to ensure the highest level of customer service. The team which carried out the work, was courteous, reliable and hard working at all times. The team comprised Blane and his apprentice son Louis. Blane’s skill level is excellent and the finished job demonstrates this. Louis worked hard and is now capable of carrying out most aspects of the work. A job well done. Thank youPosted on Checkatrade![]()
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Trustindex verifies that the original source of the review is Checkatrade.
Professional, thorough and very reasonable price - Highly Recommended. Cormac was extremely thorough during his extensive visit to our premises to investigate an ongoing damp issue. Although we generally knew the cause, we needed an independent report to provide to the landlord. Cormac was pleasant and forthcoming in discussion with our Centre Manager on site and understood the requirements. The report we received was detailed and contained extensive photos to evidence his explanations. I cannot recommend Cormac and Nordic Damp Proofing enough! Very professional and thorough, And a small note to say extremely reasonably priced.Posted on Checkatrade![]()
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Trustindex verifies that the original source of the review is Checkatrade.
Damp Under Stairs Nordic Damp Proofing were very professional, gave a fair quote with no obligation. Had damp issue under stairs in old house, that needed all the old plaster removed and rectified. Ben who completed all work to contract and cleaned up, very pleased. Would use againPosted on Checkatrade![]()
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Trustindex verifies that the original source of the review is Checkatrade.
Penetrating Damp & Condensation Treatment We'd tried a few companies to assess our damp and condensation problems but Nordic really stood out. A very thorough survey was carried out by Jason, a few days later a quote was sent and accepted and a very detailed Scope of Work issued. The work was completed quickly and efficiently by Stephen and other Nordic staff, any issues we had were swiftly addressed and professionally handled, our thanks to Jack and Lydia for their constant availability and communication.Posted on Bark![]()
Brad NicholsVerified
Second time Nordic have done work for me - what a lovely company and job done.Posted on Google![]()
Salim AhmedTrustindex verifies that the original source of the review is Google.
Very professional and friendly service. They even called ahead to let me know they were running approximately 10 minutes behind the estimated arrival time due to traffic. Excellent communication and customer service throughout. Highly recommended!Posted on Google![]()
TomTrustindex verifies that the original source of the review is Google.
Definitely use them again great companyPosted on Google![]()
TomTrustindex verifies that the original source of the review is Google.
Amazing company and workforcePosted on Google![]()
TomTrustindex verifies that the original source of the review is Google.
Good companyPosted on Google![]()
Michael de VilliersTrustindex verifies that the original source of the review is Google.
I had a super gentleman come to my home and review the damp that I suddenly started to have mysteriously and with a sudden onset! He was super friendly and informative and I felt empowered to make the necessary decision as to the way forward with my flats treatment! A rated company and highly recommended 👌☺️👍Posted on Google![]()
amyTrustindex verifies that the original source of the review is Google.
Had a reslly lovely experience with Nordic damp proofing. He was very honest and saved me a lot of money. Lovely, friendly and extremely helpful. Thank you so much for coming out and advising me. I 100% recommend nordic damp proofing.Posted on Checkatrade![]()
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Trustindex verifies that the original source of the review is Checkatrade.
Efficient and helpful Woodworm survey completed at prospective property. Everyone was communicative and helpful. Even when we had an issue with the time of the survey changing they communicated and it was resolved. The Report was detailed and easy to understand.Posted on Checkatrade![]()
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Trustindex verifies that the original source of the review is Checkatrade.
Exceptional service Couldn’t be happier with the service provided by Nordic, their customer service and work was excellent, very happy!Posted on Checkatrade![]()
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Trustindex verifies that the original source of the review is Checkatrade.
Damproofing and plastering the tradesman who did the Damproofing and remedial plastering was excellent, we would strongly recommend him.Posted on Checkatrade![]()
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Trustindex verifies that the original source of the review is Checkatrade.
Mould treatment Really great work. Clear and helpful communication. Very pleasedPosted on Bark![]()
Mr Jonathan GraingVerified
I’ve just had my 6 month checkup from Nordic preservations after completing the work back in October - everything has dried up perfectly. Great company great service.Posted on Bark![]()
Charles WrightVerified
Installed a piv unit for me was very impressed with the service thanks guysPosted on Bark![]()
Kassie eVerified
Great service highly reccomend this company for any renovation workPosted on Bark![]()
James HVerified
Great service, would highly reccomend this companyPosted on Bark![]()
Maria VarneyVerified
Cormac came and surveyed my property and explained the issue clearly and how to resolve the issue, did the work the following week to a great standard, really happy with the results! Would recommend to anyone!Posted on Bark![]()
max.moylanVerified
Mr Mcnicholas was extremely thorough in his analysis and work on our damp issues. Would definitely use again but I doubt I’ll have to with the extensive works that he completed.Posted on Bark![]()
Alex DarbostVerified
I recently had the pleasure of working with Nordic Preservations to address a damp problem in my bedrooms, and I couldn't be more satisfied with the experience! From start to finish, they delivered top-notch service at a very competitive price. I want to give a special shout-out to Cormac, who was my main point of contact throughout the process. Cormac was incredibly knowledgeable, responsive, and always willing to go the extra mile to ensure everything was done to the highest standard. He took the time to explain the root of the issue and the steps they would take to fix it, which really put my mind at ease. The quality of the work was exceptional, and it's clear that Nordic Preservations takes great pride in their craftsmanship. My bedrooms are now completely damp-free, and the difference is remarkable. I also appreciate how clean and tidy they left everything once the job was done. If you're looking for a reliable, professional, and reasonably priced damp proofing company, I highly recommend Nordic Preservations. Thank you, Cormac, and the entire team for a job well done!Posted on Bark![]()
WillVerified
Great service and happy with the job. Would highly recommend 👍🏻Posted on Bark![]()
JamesVerified
Brilliant guys, super friendly, very accommodating, brilliant end result
Damp and mould can become a repeat issue in rental homes, flats and managed buildings when the cause is not identified properly.
Tenants may report black mould, condensation, damp patches, wet walls, damaged plaster, peeling paint, musty smells or stains that keep returning. Sometimes the issue is mainly linked to humidity and poor ventilation. In other cases, there may be a leak, failed guttering, roof defect, penetrating damp, rising damp, poor drainage or timber moisture.
Nordic Damp Proofing works with landlords, letting agents and property managers across Berkhamsted to inspect damp and mould issues, identify the likely cause and recommend suitable remedial work.
For rental properties, you may find our guides on damp and mould in rental properties for landlords, damp and mould in rental properties for renters and Awaab’s Law and damp and mould useful.
Damp in Berkhamsted homes can be caused by condensation, poor ventilation, leaking gutters, roof defects, damaged pointing, cracked render, raised ground levels, drainage issues, leaking pipes, failed damp-proof courses or moisture affecting timber.
Properties close to canals, streams or lower-lying ground can experience moisture issues where drainage, ventilation, ground levels or waterproofing are not performing correctly. A survey can confirm whether the issue is condensation, ground moisture, penetrating damp or another source.
Mould in flats is often linked to condensation because moisture can build up when airflow is limited. However, leaks, damp external walls, water ingress and cold surfaces can also contribute, so the cause should be checked properly.
Damp near skirting boards may be caused by rising damp, but it can also be linked to raised ground levels, blocked airbricks, leaking pipes, poor drainage, condensation at low level or rainwater entering from outside.
Damp after heavy rain is often linked to penetrating damp. Possible causes include leaking gutters, blocked downpipes, cracked render, failed pointing, roof defects, chimney faults, damaged window surrounds or rainwater collecting against external walls.
Yes. Raised patios, paths, steps, flower beds or soil levels can bridge the damp-proof course or hold moisture against the wall. This can lead to low-level damp, damaged plaster and timber problems if not corrected.
Yes. We inspect cottages, older homes, period properties and converted buildings across Berkhamsted and nearby areas. These properties often need a careful approach because of their construction, previous repairs, ventilation and timber condition.
Yes. Moisture can affect joists, floorboards, skirting boards, roof timbers and other structural timber. If left untreated, timber may become vulnerable to wet rot, dry rot, woodworm or wider decay.
Yes. Damp chimney breasts may be caused by failed pointing, damaged flashing, rain entering the chimney, condensation inside the flue or salt contamination. A survey can help identify the correct cause.
Yes. We can inspect cellars, basements, lower-ground rooms, under-house storage and spaces built against surrounding ground affected by damp walls, floor moisture, mould, musty smells or salt staining.
We cover Berkhamsted and nearby areas including Northchurch, Potten End, Ashridge, Wigginton, Little Gaddesden, Great Gaddesden, Dudswell, Cow Roast, Tring, Aldbury, Boxmoor, Hemel Hempstead, Bovingdon, Chesham and Amersham.
We cover Berkhamsted and nearby postcode areas including HP4, HP1, HP2, HP3, HP5, HP6, HP23, WD4 and surrounding Hertfordshire and Buckinghamshire postcode areas.
Yes. Depending on the treatment required, long-term guarantees may be available. Your surveyor can advise what guarantee options apply once the cause of damp has been identified.
Don’t let damp damage your Hertfordshire home or affect your family’s comfort. Whether you need damp-proofing, mould removal, timber treatment or a detailed survey, we cover all of Hertfordshire with expert service.
At Nordic Damp Proofing, we’re pleased to offer damp, mould, and timber surveys to homeowners and landlords. In some cases, fees may apply for more detailed reports — but don’t worry, our team will always let you know beforehand.
Submitting this form doesn’t commit you to a survey. One of our friendly team members will contact you within 24 hours to discuss your enquiry and confirm whether a survey is needed. Once booked, we can usually arrange a visit within 24 hours of confirmation.