Investigate · Treat · Repair · Finish
Damp Proofing Calpe
Damp proofing for Calpe villas, apartments, underbuilds and town houses — from the hillside urbanisations down to the seafront.
Calpe gives us two quite different sorts of damp job, and they sit only a few minutes apart.
On the slopes above the town, villas are cut into terraced plots with underbuilds, garages and retaining walls holding back the hillside. Down on the front, the apartment blocks face straight out at the sea with nothing between them and the weather.
Different buildings, different problems, and a survey that starts in the wrong place on either of them wastes everybody's time.

Hillside plots
Villas Built Into the Slope
A villa on a terraced Calpe plot — the ground running up around Maryvilla, La Canuta and towards Oltà — almost always has a wall with soil against the other side of it. The back of a garage, the rear of an underbuild, or a retaining wall doing the work of holding the terrace up.
Those walls are where lateral damp comes from. Water in the ground behind them pushes sideways through the structure, and because the wall looks completely normal from inside, it is regularly mistaken for rising damp and treated as such, which rarely helps.
What can be done depends on whether the buried face can be got at. If the terrace above can be opened up, waterproofing the outside face and improving drainage is the stronger fix. If it cannot, tanking from inside is the practical route.
Underbuilds
Underbuild Conversions in Calpe
The underbuild conversion is the most common reason people in Calpe ring us about damp: a storage level underneath the house that somebody now wants as bedrooms, a gym, an office or guest accommodation.
Because that level sits partly below the ground outside, it needs tanking before it becomes a room, not after. We have seen plenty of finished underbuilds where the plasterboard went on first and the damp arrived the following winter, and putting that right means taking the new room back out again.
If you are planning a conversion, the waterproofing is the first decision, not the last one.
The seafront
Apartments and Terraces Near the Sea
The blocks along the Arenal and La Fossa take wind-driven rain off the sea on their exposed elevations, and salt with it. Render cracks, sealant around windows and sliding doors hardens and lets go, and water finds its way in.
Terraces are the other frequent culprit. An apartment terrace sits over the flat below, so when its waterproofing fails the damage usually appears on somebody else's ceiling. The tiles can look perfect while the layer that actually does the waterproofing has gone.
We investigate leaking terraces, repair the substrate and install a proper waterproofing system before the finished surface goes back.

How it works
How a Damp Survey in Calpe Works
The first thing we usually want to know in Calpe is which side the water is on. Damp in a lower level against the hill behaves quite differently from damp on a frontline elevation taking weather off the sea, and telling those apart on site saves treating the wrong one.
From there we say what we think is causing it and recommend something proportionate — occasionally a smaller job than expected. Diagnosis → Treatment → Repair → Finishing, with the replastering and decorating afterwards part of the same job. The survey and the quotation cost you nothing, and the work is guaranteed.
Questions
Damp Proofing Calpe — Common Questions
Do you cover the hillside urbanisations around Calpe?
Yes. Villas on the terraced plots above the town are a large part of the damp work we do, particularly underbuilds, garages and retaining walls holding back a slope.
My Calpe apartment gets damp on the sea-facing wall only. Why?
That pattern usually points at penetrating damp rather than rising damp. The exposed elevation takes wind-driven rain, and cracked render or failed sealant around windows and sliding doors lets it through. The survey looks at the outside face as well as the inside.
Can you tank an underbuild in Calpe before we convert it?
Yes, and that is much the better order. Waterproofing a below-ground level as part of the conversion is straightforward; doing it after the room is finished means removing the finishes again.
Across the area
Damp Proofing in the Surrounding Towns
Calpe is one of nine towns with its own damp proofing page. The main Damp Proofing Costa Blanca page covers every treatment in full.
Damp Proofing Altea
Damp surveys, waterproofing and remedial building work in Altea and the surrounding area.
View Altea →Damp Proofing Benidorm
Damp surveys, waterproofing and remedial building work in Benidorm and the surrounding area.
View Benidorm →Damp Proofing La Nucía
Damp surveys, waterproofing and remedial building work in La Nucía and the surrounding area.
View La Nucía →Damp Proofing Finestrat
Damp surveys, waterproofing and remedial building work in Finestrat and the surrounding area.
View Finestrat →Damp Proofing Villajoyosa
Damp surveys, waterproofing and remedial building work in Villajoyosa and the surrounding area.
View Villajoyosa →Damp Proofing Alfaz del Pi & Albir
Damp surveys, waterproofing and remedial building work in Alfaz del Pi & Albir and the surrounding area.
View Alfaz del Pi & Albir →Damp Proofing Polop
Damp surveys, waterproofing and remedial building work in Polop and the surrounding area.
View Polop →Damp Proofing Callosa d'en Sarrià
Damp surveys, waterproofing and remedial building work in Callosa d'en Sarrià and the surrounding area.
View Callosa d'en Sarrià →Get in touch
Damp, Mould or Water Coming In — in Calpe?
If you have damp, black mould, peeling paint, blown plaster or a musty smell that keeps coming back in a Calpe property, we will come and look at it and tell you what we think is causing it.
Villa, finca, town house, apartment or underbuild.
More from Dragon Reforms
Other Services in Calpe
Everything Dragon Reforms does in Calpe, each with its own page.
- Property Renovations Calpe
- Kitchen Renovations Calpe
- Bathroom Renovations Calpe
- Villa Renovations Calpe
- Apartment Reforms Calpe
- Finca Renovations Calpe
- Builders Calpe
- Terrace Renovations Calpe
- Plumbing Services Calpe
- Electrical Services Calpe
- Carpentry Services Calpe
- Painting & Plastering Calpe
- Windows & Doors Calpe
- Air Conditioning Calpe
- Disability Living Calpe
Get a quote
Get Your Free Damp Survey and Quotation
Tell us where the damp is and what the property is. We cover Calpe and the surrounding north Costa Blanca, and the survey and quotation cost you nothing.
- Phone
- 0034 639917798
0034 669261858 - +34 639 91 77 98
- dragonreforms@gmail.com
- Address
- Calle San Isidre No 8, Pl 1 Dr
03510 Callosa de Ensarrià, Alicante - Hours
- Monday to Saturday, 9am–8pm