Damp Proofing Halifax
CSRT & CSSW qualified surveyors · PCA approved · TrustMark registered
Rising damp, penetrating damp, condensation and timber decay treated across Halifax and Calderdale, from gritstone terraces on the valley sides to Sowerby Bridge, Elland and the villages along the Calder. We diagnose the cause before we quote for the cure.
Why damp is so common in Halifax homes
Halifax is built of gritstone on the steep sides of a Pennine valley, and both the stone and the slope play a part in almost every damp problem we see here.
Solid gritstone on the Pennine edge
Calderdale's character comes from its local gritstone and the stone-built terraces that climb its valley sides. Those walls are solid, with no cavity, and they face the weather coming in off the Pennines. Wind-driven rain soaks the outer face, and once the pointing softens or a gutter overflows, it works its way right through, which is why penetrating damp is such a common cause here.
Houses built into the hillside
There is so little flat land in the valleys that terraces were built into the slope, and across Calderdale that produced top-and-bottom houses: an underdwelling below, facing downhill with its back wall against the hillside, and a second house above it opening onto the road uphill. Any wall holding back earth takes on water from the ground behind it. That is a waterproofing problem, not a damp proof course problem, and it needs a CSSW qualified surveyor to solve properly.
Floods, listed buildings and concrete estates
Calderdale's buildings range from centuries-old stone to post-war system-built housing, and the valley floor brings a problem of its own.
The Calder and its floods
The towns along the River Calder, including Sowerby Bridge, Copley and Elland, sit on the valley floor closest to the river, and the Calder reached record levels in the Boxing Day floods of 2015. Flood water drains away, but the salts it leaves in plaster and masonry keep pulling moisture back in for years, and water trapped under suspended timber floors rots the joists.
Listed buildings and system-built homes
Calderdale has more than 2,000 listed buildings and 21 conservation areas, and older stone properties built with lime need breathable repairs rather than cement and chemical injection. At the other end of the scale, estates such as Mixenden and Pellon include post-war concrete system-built homes, where cold concrete walls and thermal bridging produce stubborn condensation and black mould.
The three types of damp we treat in Halifax
They look similar on the wall and they are treated completely differently. Getting this wrong is the single most expensive mistake a property owner can make, which is why every job starts with a survey rather than a quote.
Moisture drawn up from the ground
Tide marks up to about a metre, salt bloom in the plaster and damp skirtings. In Halifax it is usually a failed damp proof course in an older terrace, or damp left behind by past flooding. Treated with a chemical DPC and salt-resistant re-plastering, or a breathable lime system where the building calls for it.
Water coming through the structure
Appears at any height and worsens after heavy rain. Common causes here are wind-driven rain on solid gritstone, earth-retaining walls on hillside terraces and defective rainwater goods. Treated by fixing the defect first, or waterproofing the wall where it holds back the ground.
Moisture the building cannot shift
Black spotting in corners, on window reveals and behind furniture, worst between October and March, and especially persistent in concrete system-built homes. Resolved with extract fans, trickle ventilation or a PIV unit, alongside targeted mould treatment.
What happens when we survey your Halifax property
Every job begins with a damp survey carried out by a CSRT qualified surveyor. You get a written report and a clear recommendation, including the times we tell you no damp proofing work is needed.
Inspection
External ground levels, pointing, render, rainwater goods and the DPC line, then a full internal inspection including any cellar or floor void.
Testing
Moisture meter readings, salt analysis where rising damp is suspected, and timber probing for rot and woodworm.
Report
A written report setting out the cause, the evidence behind the diagnosis and the recommended remedial work.
Quotation
An itemised, fixed-price quotation. No pressure, no obligation, and no work booked until you are ready.
Damp proofing treatments for Halifax properties
All remedial work is carried out to PCA standards using methods that suit the construction of the building, from structural waterproofing on hillside homes to breathable lime repairs on listed stone.
- Cavity drainage membranes and tanking for walls built into the hillside, cellars and basement conversions
- Chemical damp proof course injection for failed or missing DPCs in stone walls
- Salt-retardant re-plastering after rising damp and after flooding, where salts left in the wall keep drawing moisture back
- Lime pointing and breathable repairs for solid gritstone and listed buildings
- Ventilation and PIV systems as part of our approach to condensation control
- Timber treatment for wet rot, dry rot and woodworm in joists and floor timbers
What our customers say
Verified reviews from homeowners, landlords and letting agents across Halifax and West Yorkshire.
Qualified surveyors, within easy reach of Halifax via the M1 and M62
All Dry is based in Barnsley, within easy reach of Halifax via the M1 and M62, and we have been treating damp across Yorkshire for more than 25 years. That means a surveyor who knows the local building stock, and a team you can still get hold of years after the work is finished.
- CSRT qualified surveyors
- CSSW qualified for structural waterproofing
- PCA approved contractor
- TrustMark registered
- Guarantee Protection Insurance available
- Building Regulations compliant workmanship
- Breathable repairs for older buildings
- Reports accepted by lenders and surveyors
Workmanship is guaranteed on every job, and Guarantee Protection Insurance is available on all completed work.
Areas of Halifax we cover
We work across Halifax and the lower Calder valley, from the town centre out to Sowerby Bridge, Ripponden and Elland.
- Halifax town centre
- King Cross
- Skircoat Green
- Savile Park
- Siddal
- Southowram
- Northowram
- Shelf
- Boothtown
- Ovenden
- Illingworth
- Mixenden
- Pellon
- Highroad Well
- Warley
- Luddenden
- Luddenden Foot
- Sowerby Bridge
- Sowerby
- Ripponden
- Greetland
- West Vale
- Stainland
- Copley
- Elland
Covering HX1 to HX6. Just outside Halifax? We also cover Bradford, Huddersfield and Dewsbury. See all areas we cover.
Damp proofing in Halifax, common questions
The questions Halifax homeowners, landlords and buyers ask us most often.
It depends on how much wall needs treating, whether re-plastering is required and how the property is built. Re-plastering one wall in a terrace is a very different job from waterproofing the back wall of a hillside home, so we do not quote before we have seen the property. After the survey you get an itemised, fixed-price quotation, and the figure you are quoted is the figure you pay.
Yes. A proper survey takes time and produces a written report you can use, including with a mortgage lender or your own builder. The fee is refunded in full against the cost of the work if you go ahead with us. We would rather charge for an honest diagnosis than offer a free inspection that only ever concludes you need work doing.
Yes. A wall with earth behind it will always take on water from the ground, so the answer is not a damp proof course. We use cavity drainage membranes or tanking systems, with drainage where needed, designed by a CSSW qualified surveyor to BS 8102. Done properly, the room in front of that wall can be kept dry and usable.
Often it is something else. In Halifax the most common misdiagnoses are penetrating damp through solid gritstone and water coming through earth-retaining walls, both being treated as rising damp. That is why we test for salts and inspect the outside of the property before recommending any injection work.
A chemical DPC and re-plaster to one or two walls is typically two to four days on site. Waterproofing a below-ground or earth-retaining wall usually takes one to two weeks. New plaster then needs to dry before decorating, so allow around one month per 25mm of thickness.
Regularly. We handle damp and mould reports for landlords across Halifax and Calderdale who need to demonstrate compliance with the Homes (Fitness for Human Habitation) Act and Awaab's Law. We can report directly to the agent and work around tenant access.
Yes. Our reports are produced by CSRT qualified surveyors and we are a PCA approved contractor, which is what lenders and homebuyer surveyors look for when a retention has been placed on a purchase. If you are buying in Halifax and your survey has flagged damp, tell us and we will prioritise the appointment.
All workmanship is guaranteed, and Guarantee Protection Insurance is available on completed work. That means the cover stands even if the company ceases trading, and the guarantee is transferable to a new owner if you sell the property.
Get your Halifax damp problem diagnosed properly
Book a survey with a CSRT qualified surveyor and get a written report, an honest diagnosis and a fixed-price quotation.
07973 748566Start Your Online Quote