Damp & waterproofing specialists, South Bucks

Damp Proofing Marlow

Marlow sits on the Thames floodplain with the Chiltern chalk rising behind, so its riverside homes, period cellars and Georgian town centre get a particular mix of damp. We work the town from our nearby High Wycombe office, diagnose the real cause and put it right. Survey-led, with a written long-term guarantee.

Call 0300 373 7251 Book a Survey →

Long-Term Guarantee Riverside & Below-Ground Georgian & Period Specialists Survey-Led Diagnosis CSSW & CSRT Trained

Book a Marlow Damp Survey

0300 373 7251

Request a Callback

Survey-led diagnosis with a clear, written report. No obligation.

Proud memberFederation of Damp

Damp in Marlow Property

Marlow was made by the Thames, and the river still shapes its damp. The town sits on the floodplain on the south bank, on low-lying gravel and alluvium, with the Chiltern chalk rising steeply behind. The riverside has flooded here for centuries, enough that the old church and manor hall down by the water were undermined by it, so low-lying and riverside property has a high water table, and cellars and basements, including the old chalk-built cellars beneath the period houses, can take in ground and below-ground water that needs proper waterproofing, not a damp proof course.

Above the town the ground climbs onto the chalk around Quarry Wood and Marlow Common, where spring-line seepage can show up as penetrating damp on hillside walls.

In between sits the handsome Georgian town centre, the High Street, West Street and St Peter Street, much of it listed and solid-walled, prone to rising damp, alongside the modern estates of Marlow Bottom. With that range, a proper survey is the only reliable starting point.

Cavity drain membrane basement waterproofing by Advanced Damp

Damp & Waterproofing Services in Marlow

Whatever the property and whatever the cause, we cover it, and we link each job to the right specialist treatment.

Below-Ground Waterproofing

Tanking and cavity drain membranes to BS 8102 for riverside cellars and basements on the Thames floodplain.

Penetrating Damp

Spring-line seepage on the chalk slopes and driving rain through solid walls, render and bays.

Rising Damp

Failed or bridged damp proof courses in the solid-walled Georgian and period homes, treated where confirmed.

Condensation & Mould

Black mould in modern estate homes and conversions, cured with the right ventilation rather than a damp proof course.

Timber & Rot

Woodworm, dry rot and wet rot in the timbers of period and riverside property, treated at the cause.

Damp & Waterproofing Surveys

Survey-led diagnosis with a clear written report, ideal for buyers of period and riverside homes.

Call 0300 373 7251 Book a Survey →

Signs of Damp in Marlow Homes

If you are seeing any of these, it is worth getting the cause checked before it spreads:

Water seeping into a cellar or basement

Damp, musty cellars near the river

Tide marks or staining low down on walls

Damp on walls backing onto a slope or bank

Black mould in corners and around windows

Damp patches through render after rain

A persistent damp, musty smell

Rotten or springy floor and skirting timber

How We Work, Survey to Completion

Book a survey

We arrange a convenient visit to your property, anywhere across Marlow and south Bucks.

Diagnose the real cause

We use moisture readings and, where useful, thermal imaging to confirm whether it is below-ground water, rising damp, penetrating damp or condensation, not guesswork.

Clear written report

You get a plain-English report setting out the cause, the recommended work and the costs, sympathetic to period and listed homes.

Carry out the work

Our in-house teams complete the treatment tidily and with minimal disruption, leaving the property clean.

Written guarantee

Installed work is backed by a written long-term guarantee, transferable on sale.

Damp proofing work to a wall by Advanced Damp

What Our Customers Say

Genuine reviews from Advanced Damp customers.

★★★★★

"Lionel came to survey our flat. He couldn't have been pleasanter or more professional. He explained all his findings and we're hoping we're now on the way to resolving our mould problems."

Claire Hudson

Google review

★★★★★

"Lionel was brilliant. Expert, efficient and extremely helpful in answering our various queries."

Hugo

Trustpilot review

★★★★★

"Lionel was professional, polite and explained the process clearly and concisely. First class service. Would highly recommend."

Andy Dodd

Trustpilot review

Call 0300 373 7251 Read more reviews →

Recent Work Near Marlow

Our recent work close to Marlow includes conservatory wall, Marlow SL7 and flat entrance hall, Marlow SL7. Each case study sets out what the survey found and how the problem was fixed.

Low level damp staining on a wall inside a conservatory in Marlow, SL7

Damp proofing

Conservatory wall, Marlow SL7

Low level damp on an old outside wall now inside a conservatory. Waterproof render to 1.2m in a day.

Read the case study →

Thermal image showing a cold bridge around an entrance door in a Marlow flat, SL7

Condensation

Flat entrance hall, Marlow SL7

Mould from thermal bridging at the door and intermittent heating, not rising damp. Mould wash and fillet seal.

Read the case study →

See all our case studies

Not sure what is causing your damp?

Damp is easy to misdiagnose. A survey by a CSSW and CSRT trained specialist finds the real cause first, so you only pay for work that fixes it.

Book a Survey Call 0300 373 7251

1. Book online or callPick a time that suits you.
2. Surveyor visitsMoisture readings, thermal imaging and a check outside.
3. Written reportThe cause, photos and the recommended fix, with no obligation.

Areas We Cover Around Marlow

We cover Marlow and the surrounding south Buckinghamshire area, including:

Marlow
Marlow Bottom
Little Marlow
Bisham
Medmenham
Hurley
Bourne End
Well End
Bovingdon Green
Frieth
Hambleden
Lane End
Cadmore End
Skirmett
Fingest
Cookham
Wooburn Green
Flackwell Heath

Nearby? See our Maidenhead and Amersham damp proofing pages, or our main London damp proofing page.

Call 0300 373 7251 Book a Survey →

Spread the cost with finance

Larger damp proofing and waterproofing projects do not have to be paid for in one go. We can offer a loan option through Phoenix Financial Consultants Limited on our quotes, so you can spread the cost of the work into monthly payments.

Ask about finance when you receive your quote
No obligation to take it up
Subject to status and credit checks

See finance options Call 0300 373 7251

Finance on your quote

Finance is arranged through a credit broker, not a lender, with options from a panel of lenders.

Advanced Damp Ltd is an Introducer Appointed Representative (Financial Services Register No. 1014605) of Phoenix Financial Consultants Limited (Phoenix). Phoenix is a credit broker, not a lender. Phoenix is authorised and regulated by the Financial Conduct Authority (FRN: 539195), and offers finance from its panel of lenders. All finance subject to status and credit checks.

Damp Proofing Marlow FAQs

Which parts of Marlow do you cover?

All of Marlow and the surrounding south Buckinghamshire area, including Marlow Bottom, Little Marlow, Bisham, Medmenham, Hurley, Bourne End, Bovingdon Green, Frieth, Hambleden and Lane End.

Does being on the Thames cause damp problems in Marlow?

It can, and it is the thing that sets Marlow apart. The town sits on the Thames floodplain, on low-lying gravel and alluvium, with the Chiltern chalk rising behind. The riverside has flooded for centuries, enough that the old riverside church and manor hall were undermined by it, so low-lying and riverside property has a high water table, and cellars and basements, including the old chalk-built cellars of period homes, can take in ground and below-ground water. That needs below-ground waterproofing or tanking to BS 8102 rather than a damp proof course. A survey confirms it first.

Can you work on the Georgian homes in the town centre?

Yes. The High Street, West Street and St Peter Street have solid-walled Georgian and period property, much of it listed and in the conservation area. A bridged or failed damp proof course lets rising damp up the wall, and driving rain crosses solid walls as penetrating damp. Old fabric needs a breathable approach, so we confirm the cause and repair sympathetically rather than sealing moisture in.

I have damp on a property on the slopes above Marlow. What causes it?

Above the town the ground rises steeply onto the Chiltern chalk, around Quarry Wood, Marlow Common and Marlow Bottom. On those slopes, water moving through the chalk and clay-with-flints can be forced out as spring-line seepage, showing up as penetrating or hillside damp on walls backing onto the bank. We confirm the water path with a survey before recommending anything.

How much does damp proofing cost in Marlow?

It depends on the cause, how much of the property is affected, access, whether it is a damp proof course or below-ground waterproofing, and whether replastering is needed, so there is no honest one-size figure. After a survey we provide a clear, itemised written report so you know exactly what the work involves and what it costs before deciding anything.

Is the work guaranteed?

Yes. Our installed damp proofing and waterproofing work is backed by a written long-term guarantee, which is transferable if you sell and is accepted by solicitors and lenders during a sale.

Do you waterproof cellars and basements in Marlow?

Yes. Properties close to the Thames can see water pressure against cellar walls and floors in wet winters. We design and install waterproofing such as cavity drain membranes and sump pumps to BS 8102, based on how the space will be used.

How long does a damp survey take in Marlow?

Most surveys of a typical house in Marlow take between one and three hours on site, depending on the size of the property and access to cellars, floor voids and the outside walls. You then receive a written report with photos, the cause of the damp and the work recommended.

Book a Damp Survey in Marlow

Get the real cause of your damp diagnosed by a specialist who understands Marlow property, from the riverside cellars of the Thames floodplain to the Georgian town centre and the chalk slopes above, with a clear written report and honest advice.

Call 0300 373 7251 Request a Survey →

Last updated June 2026 · Advanced Damp Ltd · Damp proofing in Marlow, Buckinghamshire · 0300 373 7251

Call 0300 373 7251