Walls & Waterproofing · San Miguel de Allende
House Painting & Waterproofing
in San Miguel de Allende
Paint over damp and it comes back in months — blistered, stained, peeling. We treat moisture at the source, waterproof and seal properly, then finish with professional-grade paint. Your colonial walls stay beautiful and dry, season after season.
Why It Matters in SMA
Painting over damp is throwing money away.
San Miguel's colonial walls are porous cantera and adobe — they drink up moisture, and the rainy season makes it worse. Paint applied over that damp will fail, every time. Lasting results come from treating the cause first, not just covering it.
Walls that drink water
Cantera and adobe are porous. They pull moisture up from the ground and in from the weather — capillary damp that surfaces right through fresh paint.
Rainy-season damage
From June to October, leaks, rising damp, and trapped moisture blister and stain walls — inside and out.
Paint that fails fast
Painting over untreated damp blisters, peels, and stains within months. It looks like a paint problem — it is really a moisture problem.
Mold & salitre
Untreated moisture feeds mold and leaves white salitre (efflorescence) on old walls — both signs the wall needs treatment, not just a fresh coat.
What We Do
Walls done right, from the inside out.
We treat the cause, protect the wall, and finish it beautifully — so the result lasts, not just looks good on day one.
Moisture Treatment
We find where the damp comes from and treat it at the source — rising damp, leaks, or trapped moisture — before any sealing or paint goes on.
Waterproofing
Professional waterproofing for walls, rooftops, and terraces — keeping water out where it gets in, built for SMA’s rainy season.
Wall Sealing
Proper sealants on porous cantera and adobe, so the wall is protected and ready to hold paint for years, not months.
Interior & Exterior Painting
Professional-grade paint, cleanly applied — colors that protect as well as they beautify, inside and out.
Mold & Salitre Treatment
We remediate mold and treat salitre (efflorescence) at the root, so it does not bleed back through your new finish.
Wall Prep & Repair
Crack repair, resanes, and surface preparation — the unglamorous step that decides whether a paint job lasts.
How We Do It
The order that makes it last.
A lasting finish is about sequence. Skip a step — especially the first one — and the wall fails. We never do.
Diagnose the Damp
We find where moisture is coming from — rising damp, a leak, the weather — instead of guessing or painting over it.
Treat at the Source
We resolve the cause: stop the leak, treat rising damp, remediate mold and salitre, and let the wall dry properly.
Seal & Waterproof
We seal porous cantera and adobe and waterproof where water gets in, so the wall is protected before any color goes on.
Paint to Last
Only now do we paint — professional-grade finishes, cleanly applied, that protect the wall and stay beautiful for years.
Our Process
Clear Steps. Zero Surprises.
The same process we use on every job — explained in English, documented in writing.
WhatsApp Us
Tell us what you are seeing — blistering, stains, peeling, or just rooms ready for a fresh look. A photo helps. We reply the same day.
On-Site Assessment
We inspect the walls, check for moisture and its source, and explain in plain English what the wall actually needs.
Written Quote
You receive a clear, itemized quote in English — treatment, sealing, and paint — with no surprises.
We Do the Work
We treat, seal, and paint in the right order, protecting your floors, furniture, and finishes throughout.
Sign-Off
We walk you through the finished work and make sure you are completely happy before we close out.
Related Services
A Home That Stays Beautiful and Dry
Walls, roofs, and water are connected. These are the services SMA homeowners pair with painting and waterproofing.
Frequently Asked
Painting & Waterproofing FAQ
Why does my paint keep blistering and peeling?
Almost always moisture. Colonial cantera and adobe walls pull in damp, and paint applied over untreated moisture blisters, peels, and stains within months. The fix is to treat the moisture at its source first — then seal and paint.
Can you just paint over a damp or stained wall?
We can, but it would fail — and we will tell you so honestly. Lasting results require treating the moisture and sealing the wall before any paint goes on. Painting over damp is throwing money away.
How do you treat moisture in a colonial wall?
First we find the source — rising damp from the ground, a leak, or trapped weather moisture. Then we resolve it, let the wall dry, treat any mold or salitre, and seal the surface before painting.
What is salitre, and can it be removed?
Salitre (efflorescence) is the white, powdery salt deposit that surfaces on damp old walls. It signals a moisture problem. We treat it at the root so it does not bleed back through your new finish.
Do you waterproof rooftops and terraces?
Yes. We waterproof walls, rooftops, and terraces — a critical step in San Miguel, where rainy-season water finds every weak point. It also pairs naturally with terrace maintenance.
What kind of paint do you use?
Professional-grade paints and sealants suited to SMA’s climate and to porous colonial surfaces — finishes that protect the wall, not just color it. We match the right product to your specific walls.
Do you do both interior and exterior painting?
Yes — interior and exterior. Exterior work in SMA almost always involves sealing and waterproofing too, given how much the weather works against unprotected walls.
How long does the work take?
It depends on the size of the job and whether moisture treatment is needed — damp walls must dry before sealing and painting. We give you a realistic timeline in the written quote.
Will mold come back after you treat it?
Not if the moisture causing it is resolved — which is exactly why we treat the source first. Painting over mold without fixing the damp only hides it temporarily.
Do you protect my floors and furniture?
Always. We cover and protect floors, furniture, and finishes throughout the work, and leave the space clean when we are done.
Walls That Last
Beautiful walls that actually stay that way.
Moisture treatment, waterproofing, sealing, and professional painting — done in the right order, by one English-speaking team. Reach us on WhatsApp.







