Bookkeeping for contractorsYou sell a lot. Now keep the profit.

Our Clean Profit package is the bookkeeping service of Oficina del Contratista: we keep your books up to date so you know how your business is doing, pay your taxes with no surprises and get a digital report every quarter. All in Spanish.

Hablamos español.

4.9 ★
100+ Google reviews
200+
podcast episodes
100%
support in Spanish
Armando Ehrenzweig, founder of Oficina del Contratista

Oficina del Contratista by Armando Ehrenzweig

10-second test

Selling a lot but not seeing the money? Check what’s happening to you.

Almost every contractor who comes to us checks several. Check yours and send them to us on WhatsApp: we’ll reply with a plan for your situation, free and with no obligation.

In return, you get:
  • What’s costing you money today
  • What we’d do first to fix it
  • What we handle and what a partner handles
Check what’s happening to you today

Tap the problems you have. You’ll see the message you’ll send us on WhatsApp.

From “how much did I make?” to knowing for sure.

Roofing contractor overwhelmed by paperworkYour business today
Sales for the year$ 2,400,000
TaxesBehind
BookkeepingI don’t understand it
Real profit¿?
Remodeling contractor reviewing his quarterly digital reportWith Clean Profit
Business profitClear, every month
TaxesUp to date, no surprises
Digital reportEvery quarter
Real profit *30%

* Illustrative example, not guaranteed. Results depend on each business.

Take the Clean Profit package

A bookkeeping office that walks with you, not just hands you numbers.

Desk with calculator, hard hat, and quarterly digital report

This is what the Clean Profit package includes.

Up-to-date bookkeeping

Your books in order so you know how your business is doing.

Quarterly digital reports

A clear report every quarter, no jargon.

Advice with you

We go over open items and your goals with your ODC team.

Taxes with partner enrolled agents

Tax planning and returns with our partner enrolled agents, no surprises.

Client portal

All your reports in one secure place

You get all your reports in our client portal, a secure place to send and receive your business information.

Go to the portal

Getting started is simple. You see the change from the first month.

One-on-one consultation with a concrete contractor
1

We talk for 15 minutes

By WhatsApp or phone, in Spanish. You tell us how your business is doing.

2

We review your numbers

We see where you stand: bookkeeping, taxes and open items.

3

We get you organized and stay with you

Up-to-date bookkeeping and a digital report every quarter.

Podcast · 200+ episodes

Oficina del Contratista: the podcast to build your success.

Every week, Armando Ehrenzweig talks straight about what contractors go through: taxes, payroll, how to bid and get paid, how to get your business organized and how to grow without losing control.

Episodes in Spanish, straight to the point and jargon-free, to listen to on the way to the job site or in the truck.

Listen on Spotify
Oficina del Contratista podcast cover, with Armando Ehrenzweig

Recent episodes

See all episodes
Ep 234 · Jun 17, 2026 · 15 min

Cómo Calcular tus Costos y Aumentar tus Márgenes en Construcción

Open the episode
Ep 233 · Jun 15, 2026 · 32 min

Lo Fácil en Construcción te Puede Costar Caro

Open the episode
Ep 232 · Jun 12, 2026 · 18 min

Cómo Cerrar Más Ventas en Construcción Sin Bajar tus Precios

Open the episode

What our clients say.

5.0 out of 5 on Google · real reviews from contractors

“Armando helped me a great deal to improve my estimating process. He showed me hidden costs I wasn’t accounting for and gave me very valuable recommendations to bid more profitably. I highly recommend him to any contractor who wants to improve their business.”

Geovanni Obin

“Efficient, clear, honest, friendly and above all trustworthy service. I recommend them. They’re the right people to keep your books and the best advisors.”

Jonathan Alvarado

“Finally found a great business mentor! A great person with a lot of experience who can guide us into a new stage of our businesses!”

Mario Salguero

“The advice from the Oficina del Contratista team is essential. I recommend this company to any business looking for advice to improve their business and get better organized.”

Gabriel H

“Very good service, they answer all your questions. Thank you so much for the support. Highly recommended.”

Maria Jimenez

“Armando was very kind in clearing up the questions I had. I’m 100% ready to work with his team.”

Juan Romero

“I’m very satisfied with Ernesto for his professionalism. He helped me a lot with all my questions.”

Ambrocio Castaneda

“Wow, I was surprised. He helped me a lot and explained everything in the best way. Highly recommended, don’t hesitate to contact him.”

Calin 502

“Very good service and excellent information!”

Orlando Jimenez

“I was very satisfied with all the information and advice Armando and his team gave me. They are very professional people with a lot of experience and knowledge, who guide you to keep better control of your business. I hope to have the chance to work with them very soon. I highly recommend them!”

LILIAN HUGHES

“Very grateful for the work of Armando and his team. Thank you so much for all your help and support with my business. I definitely recommend their services. They are very professional.”

Miguel Mendoza

“To all Hispanic entrepreneurs: I recommend getting advice from Armando. Excellent consultation and guidance about business. And very kind in answering and advising.”

Omar Ramos
See all reviews
Oficina del Contratista team
Your ODC team

A person or an automated agent answers you, and we’re always keeping watch.

You are helped by people on our team, and more and more by automated AI agents that answer instantly. Either a person or an agent replies, and our team keeps an eye on every call and every message.

Talk to us
FAQ

What new clients ask us the most.

Don’t see your question? Write to us and we’ll answer in Spanish.

Message us on WhatsApp

It depends on your business. We don't keep a fixed price list for bookkeeping. Message us on WhatsApp or call us and we'll tell you what you need and what it would cost.

Let's talk about your business.

Message us or call us and tell us how your business is doing. We’ll answer in Spanish.

Call us from 8am to 5pm Pacific time. If you prefer, book an appointment from the menu.