Sound familiar?
Bids take forever to write
Every estimate is custom. Hours writing proposals that might not even land.
Clients want constant updates
"What stage are we at?" "When will the plumber come?" — texts all day long.
Word of mouth only
No website, no Google presence. New leads only come from referrals.
Invoicing is a mess
You finished the job 3 weeks ago. The invoice still hasn't gone out.
Zero online presence
Competitors post job photos on Facebook weekly. You haven't posted in months.
No clue on margins
Which projects are profitable? Which subs are costing you? You're guessing.
How it works
Paste your URL and Sintra learns your brand — voice, colors, products, personality — in minutes.
Link Instagram, Shopify, email, calendar — everything syncs automatically.
Posts, emails, customer replies, SEO — your helpers handle it all in your brand voice.
Everything runs through you. Approve, edit, or go full autopilot.
Your AI crew
Each helper handles a different part of your construction business.

Use cases
48 capabilities across 6 categories — and growing.
Online Presence
Client Communication
Bids & Proposals
Marketing & Email
Operations & Docs
Business Intelligence
Privacy & Security
End-to-end encryption
TLS 1.3 in transit, AES-256 at rest.
Never used for training
Your bids, pricing, and project data stay yours.
SOC 2 practices
Access controls, audit logging, monitoring.
GDPR compliant
Full EU data protection compliance.
Delete on request
Full deletion. No hidden copies.
Access controls
Role-based permissions and audit trails.
Real results
40,000+
Entrepreneurs
20+ hrs
Saved / week
100+
Countries
900+
Integrations
“I save 60+ hours a week. My entire team uses Sintra daily — it rebuilt our website in 3 days. Everything ready without babysitting. 10/10.”
“I save 60+ hours a week. My entire team uses Sintra daily — it rebuilt our website in 3 days. Everything ready without babysitting. 10/10.”
“About 40 hours saved per week. Cleaned up a 10,000+ product catalog. Sales and Facebook engagement are way up.”
“Revenue up 28% in 3 months. Documentation turnaround cut by 90%. The AI team just keeps delivering.”
“$2-3k/month increase in revenue. 109% increase in engagement. 10-15 more leads per month. I even launched multiple new businesses.”
“SEO score went from 62 to 98. First page on Google. Days of work done in under an hour.”
“25-30 hours saved per week. LinkedIn engagement is through the roof. Added £100k to the business through capacity expansion alone.”
“Website builds reduced from months to days. 15-20 hours saved per week. More new business closed than ever.”
“30+ hours saved per week. 6 months of progress compressed into 2. Built product and marketing entirely solo with Sintra.”
“Proposals close in days now, not weeks. Solo founder output at small-team scale.”
Content. Marketing. Follow-ups. Admin. Strategy.
When everything runs through one person, execution always breaks.
ChatGPT | Claude | Lindy | Marblism | ||
|---|---|---|---|---|---|
| Social Media Posting | |||||
| Social Media Scheduling | |||||
| Email Marketing Management | |||||
| Website Creation | |||||
| Calendar & Meeting Management | |||||
| Meeting Note-Taking | |||||
| SEO Optimization | |||||
| Marketing Plan Creation | |||||
| Automated Copywriting | |||||
| Business Analysis | |||||
| Sales Script Creation | |||||
| Image Generation | |||||
| Get Sintra |
See it in action
Click through to see how Sintra looks for your construction business.
Dashboard
Revenue, bids, project updates, and lead pipeline — your whole operation at a glance.
Questions
30-minute demo. See how Sintra keeps your pipeline full.
Book your free demo14-day money-back guarantee · No card for the demo