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Advice & Guides

Honest, specialist advice on damp, mould, timber and property care, plus real projects from across Dorset, Hampshire and Wiltshire.

Cold Bridging and Condensation: Causes, Signs and FixesExpert Guide
1 Nov 2026

Cold Bridging and Condensation: Causes, Signs and Fixes

Cold bridges leave cold spots where condensation and mould form. Learn where they occur, how to tell them from damp, and how to fix them for good.

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Trickle Vents and Condensation: What They Can FixExpert Guide
31 Oct 2026

Trickle Vents and Condensation: What They Can Fix

Do trickle vents stop condensation? See how they work, when to leave them open, how retrofitting works, and what to do if windows still run wet.

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Condensation Control: How Ventilation Stops ItExpert Guide
30 Oct 2026

Condensation Control: How Ventilation Stops It

How ventilation controls condensation in UK homes: extractor fans, trickle vents, PIV and Part F basics, plus when persistent condensation needs a survey.

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Damp Survey vs Mould Survey: Which One Do You Need?Expert Guide
29 Oct 2026

Damp Survey vs Mould Survey: Which One Do You Need?

A damp survey finds where moisture comes from. A mould survey records the growth it causes. Learn the difference, the right order and how to choose a surveyor.

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Damp Proofing & French Drain in Salisbury | ProofteriorCase Study
29 Oct 2026

Damp Proofing & French Drain in Salisbury | Proofterior

A Salisbury SP1 home with damp internal walls, fixed inside and out with the Proofterior Dry System, an external French drain and improved subfloor ventilation.

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Positive Input Ventilation: How PIV Works, Costs and LimitsExpert Guide
28 Oct 2026

Positive Input Ventilation: How PIV Works, Costs and Limits

What positive input ventilation is, how a PIV unit works, what it costs in the UK, when it beats MVHR or extractor fans, and where it can make damp worse.

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Internal Wall Waterproofing: Methods, Costs and When It WorksExpert Guide
27 Oct 2026

Internal Wall Waterproofing: Methods, Costs and When It Works

Internal wall waterproofing explained: tanking, membranes, slurries and paints, when each suits a wall, what BS 8102 requires and why diagnosis comes first.

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Sash Window Condensation: Causes, Fixes and When to WorryExpert Guide
26 Oct 2026

Sash Window Condensation: Causes, Fixes and When to Worry

Why sash windows run with condensation, how to tell harmless misting from a real fault, and the practical steps that stop it, from a damp and mould specialist.

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Black Mould & Condensation Fix in Southampton | ProofteriorCase Study
26 Oct 2026

Black Mould & Condensation Fix in Southampton | Proofterior

A Southampton SO15 home with black mould returning on the bay and bathroom ceilings, solved with Positive Input Ventilation, a new extractor fan and anti-mould treatment.

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Mould in a Rental Property: Who Is Responsible and What to DoExpert Guide
25 Oct 2026

Mould in a Rental Property: Who Is Responsible and What to Do

Mould in a rental property: who pays, what the law says in England today, what Awaab's Law changes, and how landlords and tenants fix the cause for good.

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Loft Condensation Causes: Why Your Roof Space Is WetExpert Guide
24 Oct 2026

Loft Condensation Causes: Why Your Roof Space Is Wet

Why condensation forms in a UK loft: warm air leaks, blocked eaves, old felt and moisture sources, plus the order in which to check and fix them.

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Interstitial Condensation: Causes, Risks and FixesExpert Guide
23 Oct 2026

Interstitial Condensation: Causes, Risks and Fixes

Interstitial condensation forms inside walls, roofs and floors where you cannot see it. Learn the causes, warning signs, UK rules and how to fix it.

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Salt Contaminated Plaster: Causes, Tests and RepairExpert Guide
22 Oct 2026

Salt Contaminated Plaster: Causes, Tests and Repair

Salt contaminated plaster keeps walls damp after the source is fixed. Learn how hygroscopic salts are tested, how they differ from efflorescence, and how to repair.

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Roof Leak or Condensation? How to Tell Which It IsExpert Guide
21 Oct 2026

Roof Leak or Condensation? How to Tell Which It Is

Dripping ceiling or damp loft? Learn how to tell a roof leak from condensation, with a simple checklist, a tape test and the next step for each cause.

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Crawl Space Damp: Causes, Ventilation and Fixes for UK HomesExpert Guide
20 Oct 2026

Crawl Space Damp: Causes, Ventilation and Fixes for UK Homes

Damp under your floor? Learn what causes crawl space damp in UK homes, how subfloor ventilation works, and which fixes stop mould and rot for good.

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Bathroom Extractor Fan Upgrade: What to Fit and WhyExpert Guide
19 Oct 2026

Bathroom Extractor Fan Upgrade: What to Fit and Why

Planning a bathroom extractor fan upgrade? Learn when a like-for-like swap fails, how to size the fan, the rules that apply and what it costs in the UK.

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Bathroom Mould Treatment: Remove It and Stop It ReturningExpert Guide
18 Oct 2026

Bathroom Mould Treatment: Remove It and Stop It Returning

How to treat mould in a bathroom properly: kill it on ceilings and shower grout, fix the moisture behind it, and know when a specialist survey is worth it.

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Efflorescence vs Mould: 6 UK Checks That Tell You When to StopExpert Guide
17 Oct 2026

Efflorescence vs Mould: 6 UK Checks That Tell You When to Stop

Tell efflorescence from mould with six practical checks, read moisture clues, avoid unsafe tests, and know when a UK property needs a specialist survey.

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Timber Decay Diagnosis: UK Homeowners Need More Than a ScrewdriverExpert Guide
16 Oct 2026

Timber Decay Diagnosis: UK Homeowners Need More Than a Screwdriver

Learn how UK homeowners can spot timber decay, distinguish rot from insect damage, and judge when a professional survey should trace the cause.

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Kitchen Ventilation Options: UK Part F, 30 L/s, and Ducting PitfallsExpert Guide
15 Oct 2026

Kitchen Ventilation Options: UK Part F, 30 L/s, and Ducting Pitfalls

Compare ducted, recirculating, and downdraft kitchen ventilation, check the 30 L/s UK Part F requirement, and plan ducting before your remodel.

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Basement Waterproofing Methods: 3 Types, UK Costs and Pump RisksExpert Guide
14 Oct 2026

Basement Waterproofing Methods: 3 Types, UK Costs and Pump Risks

Compare BS 8102:2026 basement waterproofing types, UK costs, survey based design, and how sump and pump maintenance affects long term performance.

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Mould Remediation for UK Landlords: Awaab’s Law and the 1 m² TriggerExpert Guide
13 Oct 2026

Mould Remediation for UK Landlords: Awaab’s Law and the 1 m² Trigger

See how UK landlords can tackle mould remediation, trace moisture at its source, understand when to hire a specialist, and meet Awaab’s Law duties.

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Flood Damage Repair: Diagnose Before You RebuildExpert Guide
12 Oct 2026

Flood Damage Repair: Diagnose Before You Rebuild

Learn how to document flood damage, protect your insurance claim, and sequence professional drying and repairs before rebuilding your home safely.

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Rising Damp Treatment Upton Dorset BungalowCase Study
15 Jun 2026

Rising Damp Treatment Upton Dorset Bungalow

A detached bungalow in Upton, Dorset suffering from rising damp across multiple ground-floor rooms, treated using the Proofterior Dry System.

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Case Study: Southampton Terrace Rising Damp Fix | ProofteriorCase Study
20 May 2026

Case Study: Southampton Terrace Rising Damp Fix | Proofterior

A terraced property in Southampton with rising damp affecting the living room and hallway, resolved with the Proofterior Dry System.

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Retaining Wall Damp Proofing Wimborne | ProofteriorCase Study
10 Apr 2026

Retaining Wall Damp Proofing Wimborne | Proofterior

A property in Wimborne with a retaining wall allowing water ingress, resolved with a specialist tanking system.

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Mould & Condensation Solution Bournemouth | ProofteriorCase Study
15 Mar 2026

Mould & Condensation Solution Bournemouth | Proofterior

A Bournemouth bedroom suffering from persistent mould and condensation, resolved with IsoTherm insulation and PIV installation.

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Rising Damp Southampton Extension | ProofteriorCase Study
20 Feb 2026

Rising Damp Southampton Extension | Proofterior

A Southampton property with rising damp in a later-addition living room extension, treated with chemical DPC injection.

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Internal Membrane System Bournemouth | ProofteriorCase Study
15 Jan 2026

Internal Membrane System Bournemouth | Proofterior

A Bournemouth property with persistent damp walls, treated with a specialist internal membrane system.

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Rising Damp Ground Floor Flat Bournemouth | ProofteriorCase Study
10 Dec 2025

Rising Damp Ground Floor Flat Bournemouth | Proofterior

A ground floor flat in Bournemouth with rising damp affecting the hallway and bedroom, treated with chemical DPC injection.

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Waterproof Resin Floor System Dorset | ProofteriorCase Study
20 Nov 2025

Waterproof Resin Floor System Dorset | Proofterior

A Dorset property with ground-floor damp requiring a full waterproof resin floor system to resolve ongoing moisture issues.

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Rising Damp & IsoTherm Southampton | ProofteriorCase Study
15 Oct 2025

Rising Damp & IsoTherm Southampton | Proofterior

A Southampton property with rising damp, treated with combined DPC injection and IsoTherm internal wall insulation for lasting protection.

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DPC Installation Bournemouth | ProofteriorCase Study
25 Sept 2025

DPC Installation Bournemouth | Proofterior

A Victorian property in Bournemouth with failed original DPC, treated with modern chemical DPC injection.

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Chemical DPC Bournemouth | ProofteriorCase Study
10 Sept 2025

Chemical DPC Bournemouth | Proofterior

A Bournemouth home with rising damp affecting multiple rooms, resolved with professional chemical DPC injection.

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What Is Rising Damp? Causes, Signs & TreatmentExpert Guide
1 Sept 2025

What Is Rising Damp? Causes, Signs & Treatment

Rising damp occurs when groundwater travels upward through your walls by capillary action. Learn the signs, causes, and professional treatments.

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Cold Damp Walls Victorian Home Dorchester | ProofteriorCase Study
20 Aug 2025

Cold Damp Walls Victorian Home Dorchester | Proofterior

A Victorian property in Dorchester with cold, damp walls caused by a combination of poor ventilation and failed weatherproofing.

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What Is a Damp Proof Course (DPC)? | ProofteriorExpert Guide
15 Aug 2025

What Is a Damp Proof Course (DPC)? | Proofterior

A damp proof course is a barrier in your walls designed to prevent moisture rising from the ground. Learn how DPCs work and when replacement is needed.

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IsoTherm Bournemouth Holiday Preparation | ProofteriorCase Study
5 Aug 2025

IsoTherm Bournemouth Holiday Preparation | Proofterior

A Bournemouth homeowner wanted their property insulated and damp-proofed before the colder months. We installed IsoTherm throughout.

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What Is a Damp Survey? | ProofteriorExpert Guide
20 Jul 2025

What Is a Damp Survey? | Proofterior

A damp survey is a professional assessment of your property to identify the type, source, and extent of damp problems.

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Chimney Leak & Damp Fix Southampton | ProofteriorCase Study
15 Jul 2025

Chimney Leak & Damp Fix Southampton | Proofterior

A Southampton home with stained ceilings and persistent damp traced to a leaking chimney stack, resolved with comprehensive waterproofing.

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What Is Penetrating Damp? Causes & SolutionsExpert Guide
10 Jul 2025

What Is Penetrating Damp? Causes & Solutions

Penetrating damp occurs when water enters your property through the external walls, roof, or around openings.

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Damp vs Condensation: How to Tell Them ApartExpert Guide
25 Jun 2025

Damp vs Condensation: How to Tell Them Apart

Many homeowners confuse damp with condensation. Learn how to identify which one is affecting your property and what action to take.

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Penetrating Damp Kitchen Bournemouth | ProofteriorCase Study
20 Jun 2025

Penetrating Damp Kitchen Bournemouth | Proofterior

A Bournemouth kitchen with penetrating damp on an external wall, treated with our internal dry system and external masonry protection cream.

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What Causes Black Mould on Walls? | ProofteriorExpert Guide
10 Jun 2025

What Causes Black Mould on Walls? | Proofterior

Black mould is a common problem in UK homes, often caused by excess moisture. Learn the causes, health risks, and professional solutions.

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What Happens in a Complimentary Damp Survey? | ProofteriorExpert Guide
20 May 2025

What Happens in a Complimentary Damp Survey? | Proofterior

Our complimentary damp survey includes a full property inspection using specialist moisture testing equipment, with a written report and recommendations.

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Damp Proofing & IsoTherm Southampton | ProofteriorCase Study
15 May 2025

Damp Proofing & IsoTherm Southampton | Proofterior

A Southampton period property transformed with combined damp proofing treatment and IsoTherm internal wall insulation.

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Types of Mould in Your Home | ProofteriorExpert Guide
5 May 2025

Types of Mould in Your Home | Proofterior

From Aspergillus to Stachybotrys, different moulds appear in different conditions. Learn which types are common in UK homes and how to address them.

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Nitrate Contamination Southampton | ProofteriorCase Study
20 Apr 2025

Nitrate Contamination Southampton | Proofterior

During a renovation in Southampton, our survey identified nitrate contamination in the walls, a common issue in older properties near historic agricultural land.

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How to Choose a Damp Proofing Company | ProofteriorExpert Guide
15 Apr 2025

How to Choose a Damp Proofing Company | Proofterior

Not all damp proofing companies are equal. Learn what to look for, the questions to ask, and why specialist diagnosis matters.

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How to Fix Damp That Keeps Coming Back | ProofteriorExpert Guide
1 Apr 2025

How to Fix Damp That Keeps Coming Back | Proofterior

Recurring damp on internal walls usually indicates the root cause has not been addressed. Discover why damp keeps returning and how to fix it permanently.

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Rot & Woodworm Treatment Southampton | ProofteriorCase Study
15 Mar 2025

Rot & Woodworm Treatment Southampton | Proofterior

A Southampton property with multiple timber issues including wet rot, dry rot, and active woodworm infestation across ground-floor joists.

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Awaab's Law for Landlords | Dorset & HampshireExpert Guide
10 Mar 2025

Awaab's Law for Landlords | Dorset & Hampshire

Awaab's Law requires landlords to address damp and mould within strict timescales. Learn what this means for property managers and landlords.

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Awaab's Law for Landlords & Managers | ProofteriorExpert Guide
5 Mar 2025

Awaab's Law for Landlords & Managers | Proofterior

A comprehensive guide to Awaab's Law, covering investigation timescales, repair deadlines, and how to meet your legal obligations.

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Expert Guide
20 Feb 2025

Mould Law for Landlords 2025 | Proofterior

With new mould legislation in 2025, landlords face stricter requirements for addressing damp and mould in rental properties.

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Mould Cleaning & Damp Control Bournemouth | ProofteriorCase Study
20 Feb 2025

Mould Cleaning & Damp Control Bournemouth | Proofterior

A Bournemouth property with widespread mould growth across multiple rooms, treated with professional mould removal and moisture control measures.

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Rising Damp vs Condensation Guide | ProofteriorExpert Guide
10 Feb 2025

Rising Damp vs Condensation Guide | Proofterior

Rising damp and condensation can look similar but require completely different treatments. This guide helps you identify which is affecting your home.

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Damp Proofing & Wall Restoration ChristchurchCase Study
25 Jan 2025

Damp Proofing & Wall Restoration Christchurch

A Christchurch property with damp-damaged walls restored through professional damp proofing and specialist re-plastering.

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Bournemouth Rugby Club Sponsorship | ProofteriorNews
15 Jan 2025

Bournemouth Rugby Club Sponsorship | Proofterior

Proofterior proudly sponsors Bournemouth Rugby Club, supporting equity in sport and investing in the local community.

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Sallynoggin Damp Protest & Mould Crisis 2025News
5 Jan 2025

Sallynoggin Damp Protest & Mould Crisis 2025

The Sallynoggin protest in 2025 brought national attention to the ongoing damp and mould crisis affecting tenants across the UK and Ireland.

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IsoTherm & Penetrating Damp Solution Poole | ProofteriorCase Study
15 Dec 2024

IsoTherm & Penetrating Damp Solution Poole | Proofterior

A Poole property with penetrating damp on external walls, resolved with IsoTherm internal wall insulation and external masonry treatment.

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Rising Damp DPC Injections Poole | ProofteriorCase Study
20 Nov 2024

Rising Damp DPC Injections Poole | Proofterior

A Poole property with rising damp throughout the ground floor, treated with chemical DPC injections and specialist re-plastering.

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Rising & Penetrating Damp DPC SouthamptonCase Study
15 Oct 2024

Rising & Penetrating Damp DPC Southampton

A Southampton property with both rising and penetrating damp, requiring comprehensive DPC injection and waterproofing treatment.

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Chimney Damp Repairs Southampton | ProofteriorCase Study
20 Sept 2024

Chimney Damp Repairs Southampton | Proofterior

A Southampton home with damp caused by chimney water ingress, resolved with comprehensive chimney repairs and waterproofing.

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Southampton Damp Proofing Guide | ProofteriorCase Study
15 Aug 2024

Southampton Damp Proofing Guide | Proofterior

A comprehensive guide to damp proofing in Southampton, covering common issues in local properties and the specialist solutions available.

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South-Facing Damp Bournemouth Chemical DPC | ProofteriorCase Study
20 Jul 2024

South-Facing Damp Bournemouth Chemical DPC | Proofterior

A south-facing Bournemouth property with damp issues exacerbated by weather exposure, treated with chemical DPC and IsoTherm insulation.

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Damp Proofing & Timber Repair Bournemouth | ProofteriorCase Study
15 Jun 2024

Damp Proofing & Timber Repair Bournemouth | Proofterior

A Bournemouth property with damp, sagging floors, and rotting timbers, fully repaired by the Proofterior team in just three weeks.

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