Wall after damp proof plastering

Not sure which one you've got?

Rising, penetrating and condensation look similar and need completely different fixes. Jack will tell you which it is, free.

Torch-on felt being laid

Strip it back. Do it once.

We take the covering off, replace anything rotten and insulate to current regs before the new system goes down.

Elevation finished in flexible wall coating

Cracked render, stained walls

A flexible coating bridges hairline cracks and sheds water while letting the wall breathe. Ten to fifteen year finishes.

Skylight detail dressed into new felt

Jack, William and a small team

The person who quotes your job runs it, and answers the phone afterwards. Employed teams, £5m public liability.

Meet the team

Damp proofing &
roofing in Bexley.

Bexley, Bexleyheath, Sidcup, Welling and Erith. Thousands of 1930s semis, and a damp problem that's usually nothing to do with the damp course.

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Genuinely free · No obligation
Bexley · DA5 · DA6 · DA7 · DA8 · DA14 · DA16

1930s semis, and a damp course that's usually fine.

The borough is dominated by interwar and 1930s semi-detached housing — cavity walls, bay windows, tiled roofs and, importantly, a proper bituminous damp proof course that was a genuine improvement on Victorian slate. Ninety years on, most of those damp courses are still doing their job.

Which means that when a Bexleyheath semi has a damp wall, injecting a new damp course is very often the wrong answer. Nine times out of ten the real cause is something bridging the existing one, or water getting in somewhere it shouldn't. We'd rather find that than sell you an injection you don't need.

Streets and areas we've worked

  • Bexleyheath and the Broadway
  • Bexley Village and Old Bexley
  • Welling and Falconwood
  • Sidcup and Blackfen
  • Erith, Northumberland Heath and Slade Green
  • Barnehurst and Crayford

Twenty to twenty-five minutes from Gravesend on the A2 or A206. Comfortably inside the daily ring.

What we find in Bexley

Why Bexley damp usually isn't rising damp

Number one

Raised patios and paths

Decades of new patios, block paving and raised borders laid up against the wall. Once the outside ground sits above the internal floor, the damp course is bridged and water tracks straight past it.

Number two

Bridged cavities

Mortar droppings left on the wall ties when the house was built, or debris in the cavity. Water crosses from the outer leaf to the inner one and appears as a patch partway up the wall.

Very common

Blocked and leaking gutters

1930s semis have a lot of gutter and a lot of joints. One overflowing section soaks the same stretch of wall every time it rains, and it looks exactly like rising damp from inside.

Also frequent

Original tiled roofs

Ninety-year-old tiles with mortar bedding on the ridge and verges that has cracked out. Slipped tiles and failed flashing around the chimney and bay roofs.

Our work

Jobs like yours, in and around Bexley

Flat roofs on 1930s extensions

Rear extensions and garages across the borough with felt roofs long past their life. We strip back to the deck rather than laying over it, replace anything rotten, and insulate to current regs before the new covering goes on. Drag the line across to see the build-up.

Flat roof stripped back to new decking The completed flat roof
BeforeAfter
Strip · Rotten deck exposed
Strip · Rotten deck exposed
Build-up · New deck and insulation
Build-up · New deck and insulation
Detail · Skylight dressed in
Detail · Skylight dressed in
Below ground · Cellar tanked and screeded
Below ground · Cellar tanked and screeded

Photographs are our own work · Client permission on file

Everything we do here

Everything we do, across the borough

Damp, roofing and exterior work from one team. Bexley, Bexleyheath, Welling, Sidcup, Erith, Crayford and Barnehurst.

Damp

Rising damp & DPC injection in Bexley

Tide marks and salt staining on ground floor walls. We inject a new damp proof course using the SecoMUR system, guaranteed 30 years, then replaster with a salt-inhibiting render.

Damp proofing →

Damp

Penetrating damp in Bexley

Patches that worsen after rain. Nearly always caused by something outside — a gutter, cracked render or failed pointing — so that's what we fix first.

Penetrating damp →

Damp

Condensation & mould in Bexley

Black mould in corners and around windows. Needs ventilation rather than damp proofing, and we'll say so rather than sell you a damp course.

Condensation →

Roofing

Flat roofing in Bexley

Any system — torch-on, GRP or EPDM. Stripped back to the deck, rotten timber replaced, insulated to current regs.

Flat roofing →

Roofing

Pitched roofing in Bexley

Tile and slate. Slipped tiles, failed mortar bedding, lead flashing, and full re-roofs with dry ridge and verge.

Pitched roofing →

Roofing

Gutters, fascias & soffits in Bexley

An overflowing gutter is one of the most common causes of a damp wall in Bexley, and one of the cheapest things to put right.

Gutters & fascias →

Exterior

Wall coatings in Bexley

Flexible breathable coatings that bridge hairline cracks and shed water while letting the wall breathe. Full elevations, not patches.

Wall coatings →

Exterior

Cork spray render in Bexley

Weatherproofs and insulates at the same time. Worth considering on solid-wall property that can't take cavity insulation.

Cork render →

Below ground

Basement tanking in Bexley

Cellars need waterproofing rather than damp proofing. Tanked walls and floor, or a cavity drain system with a sump.

Tanking →

Getting to you

Twenty-five minutes on the A2

Surveys
Usually within a few working days

Bexley is inside our daily radius and we're across that way regularly.

Urgent leaks
Prioritised

We'll make it safe first and quote the permanent repair separately.

Scaffold
Arranged by us

Included in the fixed price. Straightforward on most semis with side access.

Honest answers
Often you don't need us

On 1930s stock the fix is regularly clearing a gutter or dropping a patio level. We'll tell you that even though it costs us the job.

What people say

What customers say

★★★★★Google

Front and back of the house completely revamped. Quoting was quick and detailed, and we kept working through it until everything was covered. Jack sorted the scaffold, the electrician, the gutters and the fascias.

Elite ServicesWhole-house works
★★★★★Google

Really pleased with everything Jack and the team did at my home. The few things that cropped up were sorted quickly, and nothing has come back even after all the heavy rain.

Ruby-Leigh TaylorDamp proofing
★★★★★Google

Professional and knowledgeable from start to finish. Punctual, cleared up after themselves and explained everything in plain terms.

Ferdinand ReginoldDamp proofing

Before you pay for a damp course.

Get us out first. On Bexley property the cause is frequently something far simpler and far cheaper, and the survey costs you nothing either way.

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Straight answers

Bexley damp questions

Does my 1930s semi need a new damp course?
Usually not. Interwar housing was built with a proper bituminous damp course and most are still working. If you've got a damp wall it's far more likely to be a raised patio bridging it, a blocked gutter or a bridged cavity. We check all three before recommending injection.
What's a bridged damp course?
It means water is getting past the damp proof course rather than through it. A patio, path or flower bed built up above the internal floor level lets moisture track around the barrier. Sometimes the fix is lowering the ground rather than treating the wall — cheaper, and it lasts.
Do you cover Sidcup, Welling and Erith?
Yes, all three, plus Crayford, Barnehurst, Blackfen and Slade Green. The whole borough is inside our daily radius.
My bay window roof is leaking — can you do that?
Yes. Bay roofs and the flashing where they meet the main wall are a classic weak point on 1930s semis, and a very common cause of damp appearing in the front room below.
Will you tell me if I don't need the work?
Yes, and we do it regularly. It's the reason a lot of our work comes from people whose neighbours we surveyed and didn't charge.
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