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Structural Drying & Dehumidification in London

Structural Drying & Dehumidification in Ontario

Structural drying is the phase of water damage restoration that happens after standing water has been pumped or mopped out. It deals with the moisture that has already soaked into walls, floors, subfloors, insulation, and timber frames. The team untreated, that trapped moisture leads to warped floorboards, blown plaster, mould growth, and rot in joists and skirting. The job typically involves industrial air movers, low-grain refrigerant or desiccant dehumidifiers, moisture mapping with meters and thermal cameras, and sometimes controlled removal of skirting boards or drywall to let air reach cavities.

We list 6 businesses in London offering this service, and they are not all set up the same way. Some run drying jobs as part of a full flood restoration package, others specialise purely in the drying and monitoring stage and hand off repairs to a separate contractor. Before hiring, check three things: whether they use moisture meters and log readings at each visit (not just guesswork on when a job is "done"), how many dehumidifiers and air movers they can actually bring on site versus what a job that size needs, and whether they document the process for insurance claims, since most structural drying work gets paid through a policy.

Our scoring weighs response time, equipment capacity, documentation practices, and verified customer feedback, so you can compare firms on substance rather than marketing claims. For a ranked view of all water damage restoration providers in the city, see our best water damage restoration services in London guide, and read our methodology for how we score and verify each listing.

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All structural drying & dehumidification in London, ranked by score and relevance

6 businesses, scored on recent reviews. The order weighs each business's overall score by how much of its reviewed work is structural drying & dehumidification, so a lower-scored specialist can rank above a higher-scored generalist.

Restore, Renovate, Build (formerly Restoration 1 London)
4.7(67)✓ Google-verified

Early morning calls get answered by management; crews arrive within 20 minutes to an hour for basement floods, and water extraction is followed by full documentation for insurers. Reviewers note the team walks them through every step and keeps them updated as work progresses from drying to floor replacement and painting, with final results that look professionally finished. The business handles the whole chain: water removal, structural drying, mould remediation, and reconstruction (flooring, baseboards, repainting). Pricing is described as fair and reasonable for the scope of work, though some pay a $250 assessment fee. Crews show respect for the home and its contents, and the owner or manager often comes out personally for complex jobs.

Across Canada Restorations
4.7(39)✓ Google-verified

Reviewers consistently report same-day or next-day arrival, with staff who diagnose problems clearly and complete work without leaving mess. The team's honesty stands out: they explain options plainly, refuse to oversell, and fix mistakes (like accidentally broken pipes) immediately. Across Canada handles flood extraction with industrial dehumidifiers and large fans, mold assessment and remediation, ice dam removal, roof work, and sump pump replacement. Staff named include the team and the team, both praised repeatedly for reliability and care. One reviewer called them "the best job in Canada" for responsibility and punctuality.

FIRST ONSITE Property Restoration
4.6(104)✓ Google-verified

First Onsite arrives quickly to ice storms, floods, and fires, often within an hour of the call. Staff walk homeowners through each step, handle insurance details without hassle, and ensure property protection and daily cleanup throughout the job.

SERVPRO of London

#4SERVPRO of London

73 low data
4.6(13)✓ Google-verified

Reviewers across water damage, mold, and fire calls report arrival within 40 minutes to an hour, with crews that work efficiently and update them throughout. One recent complaint alleges flooding caused by the company itself with no follow-up. Staff handle basement floods, attic mold, kitchen water damage from appliances, and fire aftermath. The owner personally checks in on jobs. Drying equipment stays on-site for full remediation.

London Extreme Clean
4.6(27)✓ Google-verified

London Extreme Clean earns consistent praise for speed and professionalism across challenging jobs: mold removal, trauma cleanup, and odour elimination. Reviewers often name the team by role, noting both technical skill and genuine compassion during difficult moments. Two complaints document missed callbacks on rental and service inquiries, a notable gap in an otherwise responsive operation.

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Water Damage

#6Water Damage

28 low data
No rating yet

Review evidence is limited. The business claims over 15 years of operation and IICRC the team Water the team certification. Service area spans London, Essex, Dorchester, Stratford, and surrounding towns.

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Common questions about structural drying & dehumidification

How much does structural drying cost in London?
Costs depend on the size of the affected area and how many days the equipment needs to run, since dehumidifiers and air movers are often billed per day of hire on top of a callout and labour charge. Small single-room jobs after a leak can be a few hundred pounds; a flooded ground floor with subfloor drying can run into the low thousands. Most homeowners claim this back through buildings insurance, so ask for a written quote and daily equipment log before work starts.
How long does structural drying usually take?
A typical job runs 3 to 7 days, but it depends on how deep the moisture has gone. Concrete slabs, brick cavities, and thick timber floors hold moisture much longer than plasterboard, and a firm should be checking moisture readings every 1 to 2 days rather than pulling equipment on a fixed schedule.
How do I know when a room is actually dry?
A competent contractor will take moisture meter readings against a dry standard (an unaffected reference area) and won't remove equipment until readings in the wet materials match that baseline, not just when the space feels or looks dry to the eye. Ask to see the readings, not just a verbal confirmation.
What should I check to judge the quality of a drying company?
Look for documented moisture mapping, enough equipment on site for the size of the job, clear communication about timelines, and experience working directly with insurers on claims paperwork. Reviews mentioning slow response after a burst pipe or flood are a red flag, since speed in the first 24 to 48 hours matters a lot for limiting mould risk.

Last updated 2026-08-12