Survey Methods

Alpine Damp

Combined with many years of experience and knowledge, our Surveyors are equipped with the latest in technology and equipment that allows us to analyse and assess the most troublesome of damp issues. Below is a description of the equipment used, and how it helps us arrive at the correct conclusion when surveying our client’s properties.

Thermal Imaging:

Using the latest in Flir Thermal Imaging technology with MBX, we are able to view not only heat pools within your property, but also cold pools. Buildings can be thoroughly scanned using our Flir Thermal Imaging camera, identifying problem areas that cannot be seen with the naked eye. Thermal Imaging can facilitate repairs quickly and thoroughly, and is much more cost effective than other conventional methods that can be intrusive. We utilise the very best, and specifically designed cameras for building inspections, the Flir Ebx models. The cameras are specifically designed for building inspections such as moisture detection, leak detection, insulation problems and much more. The thermal imaging camera converts surface temperature into a colour coded image of the view. With our knowledge and experience, this allows us to ascertain what is happening beneath the surface, and the extent of the issue.

 

Moisture Measurement System:

Search Mode:

The equipment is used to obtain relative moisture readings in solid homogenous materials such as walls and floors. The readings are obtained to a depth of 15mm below the surface. The unit will indicate readings from 60 – 1000, and state if the material is Dry, At Risk , or Wet. This allows us to obtain a picture of the area effected.

 

Measure Mode:

The equipment is used to obtain the percentage of moisture in wood (%MC), and the moisture levels in other non-conductive solid materials such as walls and brickwork (%WME). The unit states if the material is Dry, At Risk or Wet, whilst providing the actual percentage of moisture present. This allows us to ascertain the point of highest water content, normally the source point on the surface.

 

Moisture Probes:

In order to ascertain the moisture content level deep within a solid or brick wall, we utilise the probes by drilling two 6mm holes into the wall spaced 50 – 70mm apart. With the two probes inserted, we are able to measure the (%WME) deep within the wall. This provides us with added information compared to only obtaining surface to 15mm readings.

 

Hygroscopic Salts Detection:

We use the unit as a basic Salts detector. In combination with the wall probes, we can assess the level of salts, which in turn will indicate if further investigations are required regarding issues such as moisture penetration from the ground.

 

Hygrometer Mode:

The equipment (Hygrostick) is used to ascertain if condensation is an issue within a property, as it measures the Relative Humidity levels (%rh), the Ambient Temperature (TAIR), and the Dew Point Temperature (TDEW). This will confirm the levels in the property, regarding moisture in the air resulting from everyday actions, and the levels of the structure, thus confirming if the moist air is condensing on the walls, which normally results in black mould.

 

Condensator Mode:

In combination with the Hygrostick, we utilise the unit to ascertain if condensation is actually occurring, or if condensation is actually present on a surface. In addition to the normal Hygrometer readings, we obtain Surface Temperature levels (Ts), and Temperature Difference levels (TDIFF) which will determine if there is No Condensation, at Risk Of Condensation, or Condensation is present.

 

Borescope Surveys:

Utilising various Borescope cameras, we can access the smallest and most difficult of places. Our hand held 1m long camera with a 3” screen can be used to see under and behind obstructive objects, allowing us to inspect thoroughly. Our 7m long 7mm dia camera is connected to our site laptop, and this is used to access locations such as cavities within walls, therefore allowing accurate assessments of wall ties and cavity wall insulation. Our 20m long flexi camera allows us to assess the internal condition of pipes such as rain water pipes, surface water drainage, and ducts and vertical service ducts. This allows us to obtain vital information that others cannot obtain.

 

Quadricopter Survey:

Using the very latest in Quadricopter equipment, we are able to assess hard to reach areas of your property such as the roof and chimney stacks, and have a very close up view. We can record the issue with the built in vertical and horizontal HD cameras, in addition to taking photographs for report purposes. Using in combination with the Apple I Pad, we can receive real time footage, and assess the property thoroughly without the use of expensive scaffolding, and confirm without doubt what defects are present. (The Quadricopter cannot be flown in high winds)

 

Distance Analysis:

Sometimes it is not always possible to get up close to an object, such as a high chimney stack on a roof, where access could be dangerous. In these instances we utilise powerful binoculars which allow the next best thing to a close up visual inspection. That said, we always assess directly whenever safe to do so.

Chemical Analysis Of Salts On Site:

When Rising Damp is present, certain Nitrates and Chlorides are deposited on the wall when the moisture evaporates from the wall. So long as the wall has not been disturbed for a long period of time, we can take a sample of the wall paper or plaster, and analyse if the Nitrates or Chlorides are present, thus proving that the moisture has risen from the ground, as opposed to penetrating from the exterior of the property. This allows us to accurately determine if Rising Damp is the true issue, as opposed to just assuming it is.

Potable Water Chlorine Test:

If a water leak is causing damp within a property, we are able to undertake an on-site analysis of a water sample, so long as it has pooled allowing collection. We can test if Chlorine is present in the water, (as Chlorine is added to potable water at source), thus confirming that a water supply pipe or waste water pipe is the source.

Sometimes damp is a result of a leak on a water supply pipe or heating pipe. Normally when this occurs, damp survey companies will recommend that you employ a Leak Detection specialist to pinpoint the leak. Alpine are fully equipped and have over 25 years of experience in Leak Detection, therefore allowing us to locate the leak as part of the survey.

Digital Correlation:

We use the latest technology in correlations, using digital technology. Radio stations are positioned at two points on the system, and connected to the pipe or system using Accelerometers (very sensitive microphones). Under pressure the leak will create a “leak sound”. This sound travels along the pipe, and is heard at either end by each Accelerometer. The information is transferred to the main processor via the Radio Stations, and using a time delay calculation, the leak is located.

 

Digital Ground Microphone:

The Ground Microphone, does exactly as it suggests, it amplifies the sound on the ground. Using this sophisticated piece of kit, the Engineer can listen to leaks way beneath the surface, and pinpoint the location of the leak, prior to excavations being required.

 

Listening Stick:

Despite the fact that we carry the most up to date sophisticated technology, our Engineers still very much use the conventional Listening Stick, which naturally amplifies the sounds listened to.

In addition all forms of metallic and plastic pipe location equipment is carried by our Engineers, allowing them to locate any pipe with accuracy when required.

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Example Damp Survey Report
Example Damp Survey Report

Alpine Damp take their time to make the right diagnosis, utilising numerous survey methods for confirmation. On completion a detailed report will be provided, detailing exactly what has been undertaken as part of the investigation or survey, the results, and our unbiased recommendations for the rectification of the issue.

VIEW SAMPLE REPORT

Example Homebuyers Report
Example Homebuyers Report

Many people consider the Mortgage Valuation survey to be one that will highlight any issues worth considering. This is not the case, the Mortgage Valuation survey is to ascertain if the mortgage requested is covered by the value of the property in the worst case scenario that the mortgage cannot be covered.

VIEW SAMPLE REPORT

Looking For A Damp Survey?

Alpine Damp are an independent surveying company, with absolutely no connections to any damp proofing company, and therefore have no interest in financial rewards from remedial works. Call us today: 0330 333 9238

What Our Clients Say

We have offices and Surveyors that cover Central & Southern England & Wales, Alpine Damp undertake literally hundreds of surveys for both Domestic and Commercial customers, resolving issues that others cannot resolve, in all house types, through to large 5* hotels alike. We utilise our years of experience, combined with the latest survey technology and additional methods that others do not use such as Thermal Imaging, and Acoustic technology.

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View more of our reviews

Alpine Surveys made the whole process really simple, and everyone was polite and courteous throughout the whole process. The initial call from Sarah was really useful, with great communication throughout. Mark did the survey was really professional. He investigated the damp thoroughly and explained the results - I just wish I had used them before having "damp proofing" installed by another Checkatrade tradesman which is already failing and didn't resolve the problem. I now have a clear plan of what needs to happen to resolve, and feel confident in the results. Time will tell, but would recommend.

Damp Survey, in London

“The company was professional from start to finish. From the initial call I made, to final contact to pay the bill. The staff member who came to my house talked me through everything step by step, showing me what he had discovered as he went along, showing me readings on the testing equipment ( even drawing on his I pad to help explain), and giving me verbal advice ahead of that official report. He also wore plastic over his shoes indoors. I felt informed, and I trusted what he said. Even though it was bad news for me, I was glad to know her extend of the problem. I would recommend the company”

Damp Survey, in London

“Very professional service. I received my report the day after the survey. The report was extremely clear about areas of concern and actions required by the seller which has greatly aided my decision to buy the property. I also spoke to the surveyor Mark, who was very pleasant and helpful in giving more context to the findings. I plan to use Alpine Water mgt once more to go back and check that remedial works have been carried out as recommended prior to buying. I would certainly recommend this company to anyone.”

Damp Survey, in London

“The surveyor was not phased by the chaos of moving with boxes and furniture in disarray. He was punctual, polite and acted in a professional manner. When he published his report I spotted a small mistake due to a misunderstanding (not the fault of the surveyor), so called Alpine. The surveyor called me the next day and the rectified report was emailed to me the next day. Very happy.”

Damp Survey, in Banstead

“I used Alpine H2O to provide a specialist damp report on a property I was going to buy. Sarah was very helpful when booking this survey and Mark the surveyor went through in detail with me any queries I had regarding the findings of the survey. I am very thankful that I had this survey done as I would have possibly proceeded on a property without being aware of its defects. In addition Alpine H2O do not carry out remedial works and therefore do not benefit from anything found in the survey so the survey is entirely independent. I would certainly use Alpine H2O again.”

Damp Survey, in New Malden

“Very professional service, and a very thorough survey. Completely independent and only do surveys, so you can be sure they won't try to push you into getting unnecessary work carried out as they'd have nothing to profit from doing so.”

Damp Survey, in St. Albans

“Survey and investigation done as requested. Communication with company was excellent and report was produced quickly and thoroughly. Report was thorough and informative and the recommendations were easy to understand.”

Damp Survey, in Woking

“We currently have a damp issue in our property (both on an internal wall, and external wall). Alpine Survey' s carried out tests and produced a comprehensive report identifying the suspected cause of the damp and suggestions on next steps. I would highly recommend their services, ahead of calling out plumbers, trace and access, cctv surveys etc.The expert who visited the property was experienced, thorough and professional, and the customer service was excellent.”

Damp Survey, in London

“Very helpful, polite and efficient. Was kept informed of surveyors time of arrival. Would recommend as pleased with service.”

Damp Survey, in Watford

“The surveyor arrived at the time specified and took the trouble to ensure that the house remained as clean and tidy as it had been when he arrived. He took time to explain (in layman' s terms so the information was clear) what he was doing, what had caused the problem and gave good advice on how to solve it and how to find a suitable builder.”

Damp Survey, in Buckingham

“I Phoned through to Alpine Surveys on a Tuesday, they managed to get someone out on the following day (I guess I was lucky in this regard) and by the Wednesday evening the highly detailed report had been e-mailed through. I would thoroughly recommend Alpine Surveys on promptness and quality and would use them again.”

Damp Survey, in Portsmouth

“The surveyor was extremely helpful and explained verbally the issues and possible solutions on the day. We received the written report with photographs in two working days. The company kept us fully informed of the process and progress and was highly efficient in handling our enquiry and delivering the service.”

Damp Survey, in Chichester

“I was very impressed with the Mark Dobson who did the survey, he answered all my questions in detail and was clearly an expert in his field, I would not hesitate to use Alpine again compared to other companies who do a "free survey" and also carry out the works needed!!!- the information given on the free survey was incorrect in my opinion against what Alpine recommended”

Damp Survey, in Horley

“The investigation was carried out professionally and courteously, with all aspects of the issues and the treatment options explained clearly and patiently. I would not hesitate to recommend this company, as they provide impartial professionalism and a comprehensive plan of action to tackle damp problems.”

Damp Survey, in Uckfield

“Although I did not meet or speak directly to the surveyor as he surveyed our potential new home, both Sarah who was my main contact and Mark, the surveyor were efficient and detailed. The report was thorough and delivered a few days after the site visit. Any questions I had were also answered promptly. Worth the investment.”

Damp Survey, in Guildford

“Mr Dobson was professional and courteous. He undertook a thorough survey and the report was provided very promptly.”

Damp Survey, in Godalming

“I requested an independent investigation into potential damp in my property following claims by an Eco firm trying to sell me a product for £3K. Alpine Surveys are independent and their surveyor did a first class job. Initial communication with Sarah at Alpine by e-mail and phone was first class and Mark the surveyor talked me through the findings. The report provided within 48 hours was comprehensive and allayed my fears. £350 well spent and saved me a fortune. I would highly recommend Alpine.”

Damp Survey, in Aylesbury

“Surveyor turned up when they said they would. They explained the process and their initial thoughts on the issues. It was very obvious that they were knowledgeable in the field. Report was sent within 24 hours and was very comprehensive. Would recommend the company to others and will be considering them in the future if other surveys are required.”

Damp Survey, in Farnham

“This is the second time we have used Marks services and again the advise he has provided has been invaluable.”

Damp Survey, in Weybridge

“Professional, punctual, confident ,and more importantly found the problem that to date no one has managed to do. We are very impressed in every aspect and would have no hesitation in recommending or using them again.”

Damp Survey, in Weston-super-Mare

“Alpine Surveys undertook a thorough survey to investigate the cause of a damp patch. The surveyor inspected the internal and external walls and took measurements of the relative damp and moisture content. We received a report with the measurements and thermal images to show the extent of the damp spread. The report also contained recommendations to rectify the issue. The surveyor was very helpful and took time to explain the issues and his recommendations. This is very helpful before we speak to any builders, to make sure they diagnose the problem and undertake the correct work.”

Damp Survey, in Epsom

“So glad I had this report done but a professional company, thanks to the company doing a full detailed report of what was wrong with the house I was going for, gave me confidence with deciding if to continue with the sale.”

Damp Survey, in Poole

“Mark really open our eyes to the mechanics and behaviour of single skin older building. It's all about breathability with lime render/plaster not about waterproofing with cement mortar. Conducted a very thorough survey and produced an excellent report afterwards to help us fix our damp problem the correct way, just wish we'd had it done before we spent money getting the house rendered with waterproof cement render!”

Damp Survey, in Epsom

“Excellent work by a very knowledgeable and experienced person. I would always recommend Mark and Alpine to anyone having damp problems or indeed if they were considering purchasing a house.”

Damp Survey, in Poole

“Alpine provided a much-needed and invaluable professional investigation for me (overseas landlord) at my tenanted property. They gave me the facts and unbiased valid information-just what I needed! As an independent company, Alpine is an absolute treasure; because the price is agreed in advance and the results are accurately compiled. No hidden extras, no "I know someone who can do that job" or any other potentially misleading sales talk. They provide a no-nonsense service which enables homeowners to then make informed decisions based on their findings. Highly recommend Alpine Surveys! Thank you.”

Damp Survey, in Eastbourne

“I have instructed Alpine Surveys to complete two surveys in the last month on behalf of my company Censeo Property, one for a property we are buying and the other on behalf of a client. Both are basement flats. I had the same surveyor for both properties, he arrived on time and worked systematically through the properties using both damp meters and thermal imaging. The reports produced were detailed and specifically the Thermal Imaging allows for non-invasive investigation, which has been very useful to my client to allow for the eliminations of some of the potential causes of the damp”

Damp Survey, in London

“This survey was undertaken due to dissatisfaction with other free quotes from damp proofing companies. Despite professional approaches, the variation in establishing underlying causes of damp seemed to add up to educated guesswork. The Alpine surveyor spent much longer exploring the potential cause and the use of thermal imaging seemed to pinpoint the source more precisely. The surveyor involved me and demonstrated what he was doing. I felt satisfied that money spent on effective unbiased diagnosis would save money down the line on potentially expensive and unnecessary work.”

Damp Survey, in Bristol

“I telephoned to enquire whether I could book a survey and received a very quick response. The survey was booked within 2 days which was extremely convenient for me.”

Damp Survey, in Coulsdon

“Inspection of Commercial Property: Very happy with Alpine Surveys - Timely, efficient, organised, polite and informative. A pleasure to deal with. Sarah who organised the appointments and follow up calls was excellent too - Thank you.”

Damp Survey, in Barnet

“Prompt, flexible to rearrange timing due to bad weather and exhaustive reporting.”

Damp Survey, in Teddington

“I was very impressed with the service offered - from initial enquiry through to receiving the survey. Very knowledgeable, helpful and prompt in sending the survey through.”

Damp Survey, in Sutton

“We had a Damp Survey carried out on property we were in the process of buying. Following the Homebuyer's survey we initially carried out, there were a number of damp related items that we wanted to get checked with a more detailed damp survey. The survey was carried out on the date we booked and we received the report the following day. The report was very clear and highlighted the areas of concern and the steps to rectify. Very pleased that it allayed our fears and put our minds at rest. Would definitely recommend.”

Damp Survey, in Dunstable

“No work was carried out, purpose of visit was for survey. Your colleague was polite, kept us informed as to what he believed the issue was and appeared to carry out a detailed investigation.”

Damp Survey, in Godstone

“Mark was extremely thorough with his investigation and identified the sources of my problems which another company wasn’t able to. His report was very informative and I would have no hesitation in recommending him.”

Damp Survey, in Haywards Heath

“Mark arrived on time and carried out a full survey and gave me good explanations of the root causes and proposed corrective actions. The report provided the same day with detailed analysis of several issues. We've not yet been able to confirm that the proposal will solve the problem, because the suggested works in the proposal are quite expensive and disruptive, but I do believe the Mark has identified the roots of the problem. I hope we can report back good news once we can afford to carry out the works.”

Damp Survey, in Henley-on-Thames

“Dealing with Alpine has been a pleasure. The booking staff are very capable, informative and courteous and the surveyors who attended were extremely professional, knowledgeable and reassuring. The report arrived on time and its format and content, logical, precise and clear. I would have no hesitation in recommending Alpine.”

Damp Survey, in Sevenoaks

“Excellent service, the man that did the job was really helpful and all issues were resolved after actions taken as advised, would definitely use again and recommend.”

Damp Survey, in Slough

“The inspector was very thorough, attentive to all details and identified the elusive source of a leak that numerous other companies failed to identify over the years. Excellent work and excellent customer service!”

Damp Survey, in London

“The surveyor was extremely pleasant, professional, approachable and an overall nice happy chap. Arrived and cracked on straight away. He explained his findings in plain terms so I would understand when the survey came through. I like the fact they are an independent company and not selling other goods off of the back of the survey like alot of others. Competitively priced vs the £400 I was quoted by another company! Sarah was friendly and easy to deal with. Survey came a little later than expected but wasn't an issue. Would recommend!”

Damp Survey, in Luton

“Alpine provided a comprehensive report on damp in a house I am a prospective buyer for. I spoke to the surveyor over the phone about the report, and received email responses to further queries. Sarah was very helpful in arranging the survey and in follow up emails.”

Damp Survey, in London

“The surveyor, Mark, Was very friendly and polite and undertook the survey very efficiently. The report was sent well before the 48 hour estimate. I had one follow up question that was answered quickly and efficiently.”

Damp Survey, in London

“I called in Alpine Surveys to find out why a bedroom wall was getting damp. After the survey we were told the leak was coming from a water tank in the attic. Although common sense would have pointed to the water tank as the logical place for the leak three different plumbers had failed to find anything wrong with it over a period of some months. The survey was quite expensive but proved beyond doubt we needed to replace that tank. We also had a full report from Alpine confirming the rest of the house is dry which is helpful as we are in the process of selling the property.”

Damp Survey, in Poole

“Excellent, friendly work; explaining what was being done and recommending solutions before report. Very pleased.”

Damp Survey, in Hampton

“Very thorough survey done and thermal imaging also done and shown to us. Advised on what action to take. Mark(surveyor) was pleasant and professional and I had complete confidence in him”

Damp Survey, in Bournemouth

“I highly recommend Alpine Surveys. Mark was extremely knowledgeable and carried out a comprehensive survey/report on an old property I was in the process of purchasing. He gave sound advice and prevented me from wasting thousands of pounds on injection tanking, as recommended by another 'damp specialist'. In my opinion having independent advice is certainly the way to go if you want peace of mind that you won't be ripped off by companies offering 'free' damp surveys.”

Damp Survey, in Chalfont St. Giles

“Mark arrived early, was polite, professional and thankfully for us (finally after spending huge amounts of money getting nowhere on the issue) highly effective. We now know what the issue is (inside the house not outside). If we need to do this again these guys are the go to outfit. Thanks again.”

Damp Survey, in Hook

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