Live · Free tools · Built for UK builders

Estimate drafts in minutes. Win the job.

Turn 10-hour estimating sessions into review-ready documents. Send drawings or a small trade job in WhatsApp; Max drafts the estimate, quote, invoice, take-off, programme, or H&S draft with gaps and pricing assumptions clearly flagged.

View pricing Start an estimate on WhatsApp
Static estimator pages are free Credits never expire
60× faster drafting · win rate · £5k+ saved/month
*Illustrative comparison: review-ready draft time vs a 10-hour manual estimating session. Final prices still need builder review.
Sound familiar?

Andrei's Tuesday night.

Before 5 Minute Estimate.

9:30 PM

Still at the desk

Family's watching TV. Mates are at the bar. Andrei is measuring drawings by hand. Again.

Next day

"Used someone else"

The client needed the quote faster. Another builder quoted same day. Job gone.

Weeks later

Wrong materials, wrong time

Nobody told the client when to order tiles. Delivery late. Programme blown. Margin gone.

⚡ Then Andrei found 5 Minute Estimate
At the meeting

Uploads from his phone

Drawings and meeting notes uploaded before he's left site. Still shaking the client's hand.

Minutes later

Client gets everything

Branded estimate, quote, material take-off, programme, or draft H&S pack — ready for review and sending.

That evening

Signed. Pub time.

Impressed by the speed, client signs today. Andrei's at the bar with friends.

View pricing

Free estimators · Credits never expire

How it works

WhatsApp Max your drawings or trade job.
Get a review-ready draft in minutes.

No app to download. No CRM. No training. If you can send a WhatsApp, you can use it.

Max — by 5 Minute Estimate

Online · Ready in minutes
Hi Max — Johnson extension. Sending the full pack now.
PDF building_regs_drawings.pdf · 3.1 MB
PDF planning_drawings.pdf · 2.4 MB
PDF structural_calculations.pdf · 1.8 MB
PDF site_meeting_notes.pdf · 340 KB
19:02 ✓✓
Got the lot. Reading through now — a couple of quick questions before I run it:
  1. Underfloor heating — extension only or kitchen/bathroom too?
  2. Finishing materials — who supplies tiles, sanitaryware, kitchen, flooring?
  3. Provisional sums — any specialist items the client hasn't decided on?
UFH throughout. Client supplies tiles + sanitaryware — we supply everything else. No provisional sums yet.
19:03 ✓✓
Got it. Running through the drawings + structural calcs now. ETA 4 minutes.
19:03
— 4 minutes later —
Done. Couple of things I picked up first:
  • Drawing discrepancy: ground floor on building regs shows 1m more depth than planning drawings. Needs clarifying before tender.
  • Build-over agreement — not in pack. Public sewer runs under proposed kitchen extension.
  • Party wall notice — neighbour to the east, no notice served yet.
  • Steel beam B2: structural calc spec doesn't match what's drawn on the GA. Flagged for SE review.
Estimate draft + key documents attached.
PDF Johnson_extension_quote.pdf · 12 pages
PDF Johnson_RAMS_draft.pdf · 4 pages
19:07
Want me to also run the programme + material take-off for this one?
19:07
Yes please — and draft the client email too.
19:08 ✓✓
On it. Sending in a minute.
19:08
— 1 minute later —
Ready to forward.
PDF Johnson_programme.pdf · 6 pages
PDF Johnson_material_takeoff.pdf · 8 pages
EML client_email_draft.eml · ready to send
19:09
↕ Scroll to see the full chat
Estimate, quote, take-off, programme, H&S drafts ⚡ 5 min
Free estimators · Credits or Builder Pro
Try the free tools

Free estimating tools and document generators.

These tools run entirely in your browser. No data leaves your device. Create illustrative drafts that you review, check, and adjust before use.

All tools produce illustrative drafts. Rates may require updating. You remain responsible for checking scope, quantities, rates and terms before use.

What changes

Stop estimating by hand.

Four things change the day you start.

60×

Stop working evenings on quotes

What takes hours by hand becomes a fast first draft with assumptions and gaps visible. Estimates, quotes, invoices, change orders and daywork sheets come from the same structured scope.

Win 3 jobs for every 1 you used to

Quote same-day with branded client paperwork, material take-offs and estimating-stage programmes. Speed helps, while your review keeps the final numbers grounded.

£30k

Catch the mistakes that bite later

Max looks for common risk items: drawing discrepancies, build-over agreements, planning gaps, party wall, asbestos, missing approvals. The costly surprises are easier to spot before you sign.

£5k+

Save enough for a new van every year

More tenders × higher win rate × more time on site instead of behind a desk. The hours and money you get back add up fast.

Your time vs Max's

What changes when you stop estimating by hand.

How many estimates do you do per month?
10 estimates / month
The old way
100h
£5,000 of your time
5 Minute Estimate
50m
£199 with Builder Pro
You save 99 hours and £4,750 every month.

That's 12+ work days reclaimed

View pricing
Why I built this

Built by a builder, for builders.

AV
"I'm Alex. 20+ years building in London. I lost too many Sundays measuring drawings by hand and too many jobs to faster quotes. So we built Max to get the first draft done quickly, with the assumptions clear enough for a builder to review."

Alex V., co-founder · builder · still on the tools

Common questions

What builders ask before signing up.

Can I estimate for free?

Yes. The public static estimator pages are free to use and do not consume estimate credits.

What if my first estimate isn't good enough?

You don't pay the credit. Simple. Your first estimate with Max is free to review — you only spend a credit if the draft is good enough to send to your client. If not, you've lost nothing. We're confident enough in Max to put it in writing.

Is my data safe? Can I trust this with client drawings?

Yes. Your drawings and project data stay encrypted, are never shared with other builders, and are never used to train public AI models. We're UK-based and GDPR-compliant.

Can I edit the estimates before sending?

Of course. Max produces the heavy lifting — the estimate draft, quote, take-off, programme or draft site document. You review scope, tweak prices to your margin, and send. It's your estimate, with your branding.

Do I need to download anything?

No. Everything happens in WhatsApp. If you can send a photo to a mate, you can use 5 Minute Estimate. No app, no login, no CRM.

What kinds of jobs does it handle?

Extensions, refurbishments, loft conversions, new builds, kitchens, bathrooms, basements, commercial fit-outs, and small trade jobs like tiling, plumbing, electrical, painting, carpentry, flooring and daywork.

What files can Max produce?

Simple works can become estimates, quotes, invoices, change orders, daywork sheets, CSVs and editable Word files. Full construction jobs can also get material take-offs and estimating-stage programmes. Max can draft method statements, RAMS, COSHH assessments and construction phase plans, but H&S drafts need competent-person review before use.

How do credits and Builder Pro work?

Buy non-expiring credits for £49 (1), £225 (5), or £600 (15), with no subscription. Builder Pro is £199/month and includes unlimited estimates while active.

Choose what fits

Buy credits once or estimate without limits.

Credits never expire. Builder Pro includes unlimited estimates for £199/month.

Single estimate
£49
One credit
Buy on WhatsApp
Starter pack
£225
5 estimates
Buy on WhatsApp
Trade pack
£600
15 estimates
Buy on WhatsApp
Builder Pro
£199/month
Unlimited estimates
View plans
Start on WhatsApp
Start on WhatsApp