01El Pescadero
Large cracked rooftop
A big roof with open cracks and moisture stains. We cleaned it, patched every crack, applied sealer, laid membrane and finished with Nanoflex, a white elastomeric coating.
Nanoflex · elastomeric
- waterproofing roofs in Baja
- 17years
- written warranty
- 5–10years
- from La Paz to La Ribera
- 6areas
- we speak English
- EN / ES
About us
We're Ricardo Hernández and Citlalic (Laly) Maldonado. Seventeen years on rooftops taught us one thing: waterproofing only lasts as long as the prep work under it.
We never paint over cracks. We pressure-wash, open and seal every crack, prime the surface, then apply the waterproofing system. When we're done, you get a signed warranty.
Systems
Four systems. We'll tell you which one your roof needs.
Every roof is different. We pick the system based on how the surface is used, how much sun it gets, whether water pools on it and your budget.
- 01
Acrylic elastomeric
A liquid membrane that stretches and shrinks with the heat without cracking. The white finish reflects sunlight and helps keep the house cooler.
Best for:Homes and concrete roofs in full sun
- 02
Cementitious (powder)
A powder mortar mixed on site that bonds to concrete and becomes part of it. Handles constant moisture and light foot traffic.
Best for:Decks, bathrooms, water tanks and planters
- 03
Asphalt
An asphalt-based coating that holds up well against standing water. Proven and budget-friendly.
Best for:Roofs with ponding water, foundations and below-grade walls
- 04
Spray polyurethane
Applied with spray equipment to form one continuous layer with no seams or overlaps. Covers irregular shapes well and dries fast.
Best for:Large surfaces and tricky details
Process
How we work
This is a real job, step by step: an ocean-view roof we washed, prepped and finished in white.
01Inspection
We go up, measure and look for cracks, ponding and leak points. That's what your quote is based on.
02Prep
Pressure washing, dust removal and crack sealing. Nobody sees this part, and it matters most.
03Primer and application
We prime the surface so the system bonds, then apply the coats the manufacturer calls for.
04Handover and warranty
We walk the finished roof with you and hand you the written warranty.
Our work
Recent jobs
Photos we took on site, as they are. No renders.
02El Pescadero
Deck with parapet walls
We cleaned the floor and parapets, patched the cracks, applied sealer and membrane, then finished with Nanoflex in a sand color that matches the house.
Nanoflex · sand color
03
Ocean-view roof
Pressure washing, Nanoprime primer and a reflective white finish across the whole roof.
Nanoprime + white finish
04Los Barriles
Beachfront deck
We prepped the surface, filled the cracks and applied sealer. Then we waterproofed it with SikaTop-107, a cementitious system with membrane, and finished with TOP terracotta coating.
SikaTop-107 + TOP terracotta
“It's always a challenge down here to find reputable contractors that know what they're doing and show up on time. [...] The entire roof had to be prepared, removing all of the material from past attempts to seal our roof and then power washed. [...] Very happy with everything and I would highly recommend this company, as they checked all of the boxes for the way work SHOULD be done.”
“100% confident there will be NO more leaks. Highly recommend this husband and wife team. Posted an inquiry and received an immediate reply. [...] Punctual every day, fairly priced and dedicated to doing the job right. A+ rating!”
Stephenie W.Client · Facebook “Thanks Ricardo y Laly for a most excellent job on our roof! Professional to the max, timely and fair pricing!”
Elaine Q.Client · Facebook “Many thanks to Laly and Ricardo. These two are very professional not to mention super nice humans. Great work and fair prices. Highly recommend.”
Cole S.Client · Facebook “Muy lindo trabajo, nos quedamos muy contentos, muchas gracias.”
Really nice work. We're very happy, thank you so much.
Serena S.Client · Facebook
If we sign it, we stand behind it.
We give a 5 to 10 year written warranty, depending on the coating we apply. If a defect shows up in that time, we fix it with no extra charge for materials or labor. We also issue official Mexican invoices (factura).
What's covered and what isn't
The warranty doesn't apply when:
- Someone else tampered with our work, or the structure was damaged on purpose.
- Mechanical damage caused by third parties, such as drilling or punctures.
- Structural failures in the building: settling or earthquake cracks.
- Corrosive chemicals or solvents were used on the coating.
- Extraordinary natural events, such as major hurricanes or extreme hail.
To file a claim, let us know within 10 business days of noticing the problem. We'll inspect it on site and take care of it under warranty.
Service areas
Where we work
We're based in La Paz and cover the Pacific side and the East Cape. Project somewhere else in Baja California Sur? Just ask.
- La PazHome base
- Todos SantosPacific side
- El PescaderoPacific side
- CerritosPacific side
- Los BarrilesEast Cape
- La RiberaEast Cape
FAQ
Questions we get a lot
How much does roof waterproofing cost in La Paz?
It depends on the size of the roof, its condition and the system it needs. Send us photos on WhatsApp for a first idea; the final quote comes after we inspect the roof. Visits and quotes outside the city have a cost.
How long is the warranty?
5 to 10 years in writing, depending on the coating. If a defect shows up in that time, we fix it with no extra charge for materials or labor.
Which waterproofing system does my roof need?
We work with four systems: acrylic elastomeric, cementitious, asphalt and spray polyurethane. We pick one based on how the surface is used, how much sun it gets, whether water pools on it and your budget.
When is the best time to waterproof?
Before the rains. May to September is our busy season and the schedule fills up, so book early.
Can I hire you while I'm in the US or Canada?
Yes. We speak English, quote from your photos on WhatsApp and send progress photos while we work, so you can follow the job from home.
Do you work outside La Paz?
Yes. We cover Todos Santos, El Pescadero, Cerritos, Los Barriles and La Ribera. Project somewhere else in Baja California Sur? Just ask.
Contact
Tell us about your roof
Send us a few photos on WhatsApp and we'll usually reply within minutes, in English. Calling from the US? Dial the numbers below with +52.
- Payment
- In Mexican pesos, bank transfer accepted.
- Progress
- We send progress photos on WhatsApp, so you can follow the job even while you're in the States.
- Site visits
- Visits and quotes outside the city have a cost.
- Busy season
- May to September, right before and during the rains. Book early.
Owned and run by Ricardo Hernández Rosas and Citlalic (Laly) Maldonado.
More of our work on Facebook