For UK building projects
Plan it. Price it. Build it.
Builder in My Pocket helps UK homeowners, self-builders and tradespeople plan building projects, calculate materials, manage costs and get practical building support — all from one clear, site-ready toolkit.
UK building calculators · Project budgets · Real builder support
What you get
Material take-offs in seconds
Bricks, blocks, concrete, boards, timber and aggregates with waste allowance.
Projects and saved estimates
Keep every calculation together against the job it belongs to.
Budget and cost tracking
Estimated against actual spend, with contingency built in.
Support from a real builder
Paid, practical guidance when a calculation isn't enough.
Toolbox
Building calculators
UK building calculators covering the materials that make up most domestic building work, each with an adjustable waste allowance and optional material costing.
Brick & Block
Concrete
Foundations
Mortar & Cement
Plasterboard
Insulation
Timber
Roofing
Flooring
Aggregates
Control
Project planning & budgeting
Group your work into projects, save estimates from any calculator and watch the numbers add up as the job progresses.
Projects
Extensions, new builds, renovations and more — each with client details and a live status.
Saved estimates
Send any calculation straight to a project and reopen it whenever the design changes.
Cost tracking
Budget, estimated and actual spend across labour, materials and other costs, plus contingency.
Not a chatbot
Real expert support
Automated answers only take you so far. Builder in My Pocket connects you to practical guidance from a real working UK builder, so decisions on site are made with experience behind them.
- Honest answers grounded in real UK site experience
- Sanity checks on quotes, methods and sequencing
- A price and availability before anything is booked
Expert services
30-minute video consultation
A booked video call to talk through plans, costs and next steps.
£59
Standard site visit, up to 1.5 hours
On-site inspection and walk-through of the works.
£199
Detailed site visit, up to 3 hours
A longer on-site look at problem areas, sequencing and quality.
£299
Half-day project consultation
Four hours focused on your programme, trades and budget.
£399
Full-day on-site support
A full day working through the build with you on site.
£650
Project management
Ongoing support running your build — quoted to scope.
Bespoke quote
Travel within 20 miles included. Travel beyond 20 miles at £0.60 per mile. Longer-distance visits quoted separately.
Who it's for
Built for people running real projects
Whether it's your own home or your day job, the same numbers matter.
Homeowners
Understand what your project really involves before you commit, and check quotes with confidence.
Self-builders
Work out material quantities and running costs for every stage of the build, from footings to roof.
Renovators
Plan extensions, conversions and refurbishments with realistic budgets and contingency built in.
Tradespeople
Fast, accurate on-site take-offs and job costings you can rely on when pricing work.
Plans
Simple monthly pricing
Start free, upgrade when the tools start paying for themselves.
Free
£0forever
Try the tools before you subscribe
- Three calculators
- One project
- A few saved estimates
Pro
£7.99per month
For homeowners, self-builders and individual trades
- Every UK building calculator, unlimited use
- My Projects with saved estimates
- Project budget & cost management
- Running material totals and contingency
Builder Pro
£14.99per month
For busy builders and property developers
- Everything in Pro
- Multiple client projects (coming soon)
- Quoting and client-ready reports (coming soon)
- Enhanced project-management tools (coming soon)
FAQ
Questions, answered
Are the calculators based on UK standards?
Yes. Quantities use standard UK material sizes and mortar joints — 215 x 102.5 x 65mm bricks, 440 x 215mm blocks, standard sheet and board sizes — with an adjustable waste allowance.
Can I use it on site?
It is built mobile-first, so it works on a phone in your pocket as well as on a tablet or desktop.
Do I need an account?
You need an account to save projects, estimates and budgets so your figures follow you between devices.
What is included free?
The Free plan includes three calculators plus one project with a small number of saved estimates. Pro unlocks all UK building calculators and unlimited projects and estimates.
Is the expert advice automated?
No. Enquiries are answered by a real working UK builder. You receive a price and availability before anything is booked.
Can I cancel a subscription?
Yes, subscriptions are monthly and can be managed from your account at any time.
Ready to get your project moving?
Plan the work, price the materials and keep control of the budget — from your pocket.
Get Started