Send us your plans. Within 2 working days, or the same day if you need it, you get a professional, fully broken-down estimate you can trust and send to your client, priced by a working builder.
Most quotes are a single line and a total, which gives a client nothing to compare and little reason to trust it. Ours breaks every element down, so your client can see exactly what they're paying for.
| Element | Total |
|---|---|
| Management & site costs | £4,089.37 |
| Demolitions | £753.75 |
| Excavation & foundations | £3,354.78 |
| Substructure & ground floor | £2,896.33 |
| Superstructure masonry | £4,602.79 |
| Steelwork | £3,498.75 |
| Roof structure, covering & RWG | £4,970.24 |
| Windows, doors & rooflight | £6,761.26 |
| Electrical, plumbing & heating | £2,880.00 |
| Finishes & scaffolding | £4,899.33 |
| Provisional sums | £8,011.11 |
| Final total (excl VAT) | £46,717.71 |
A polished, branded customer copy PDF that's ready to send.
Builders also get a detailed builder's copy PDF: every line priced, at net cost, with your margins shown separately.
| ITEM | DAYS | LABOUR | MATERIALS |
|---|---|---|---|
| Facing brickwork | 4.3 | £952 | £1,136 |
| Trench-fill foundations | 1.0 | £200 | £842 |
| Warm roof & EPDM | 2.5 | £500 | £1,377 |
| Profit & contingency | shown separately | ||
Builders and architects also get an editable Excel workbook.
| ITEM | UNIT | QTY |
|---|---|---|
| Concrete C25 – foundations | m³ | 6.4 |
| Facing brick | no. | 4,200 |
| Thermal block 100mm | m² | 58 |
| C24 47×195 joists | m | 186 |
| Plasterboard 12.5mm | sheets | 72 |
Stop losing your evenings to pricing jobs you might not win. Send us the drawings and get back a branded estimate that makes you look like the most professional firm on the shortlist.
Every estimate uses your own trade day rates, profit margin and contingency, so the price is yours, not ours. You get two PDFs: a branded customer copy to send, and a detailed builder's copy with every line priced, labour by trade and a materials order list. Plus the full take-off workbook, so the job is half-planned before you've won it.
On any single or two-storey extension. Then pay per job, or join a monthly plan.
Give clients a realistic build cost at feasibility stage, before the design runs past their budget. When the design changes, we re-price it quickly.
A cost plan in your client pack builds confidence and keeps schemes moving.
On any single or two-storey extension. Design changes re-priced from £25 + VAT.
Know your build cost before you choose a builder. A clear, independent breakdown helps you set a realistic budget, apply for finance, and compare builders' quotes like for like.
Priced by people who build extensions for a living, not by an online calculator.
Including VAT. Includes one free revision within 14 days.
| Job type | Standard2 working days | Express24 hours | Same dayOrder by 10am, ready by 6pm |
|---|---|---|---|
| Single-storey extensionRear or side extension, garage conversion, porch | £50+ VAT | £75+ VAT | £95+ VAT |
| Two-storey extensionOr single-storey with internal alterations | £75+ VAT | £110+ VAT | £140+ VAT |
| Large projectExtension plus renovation, or new build | £100+ VAT | £150+ VAT | £190+ VAT |
| Multiple dwellings or commercial | Quoted on request | ||
Builder and architect prices exclude VAT, which is added at 20%. Homeowner prices include VAT. Payment upfront. Turnaround starts once drawings and payment are received.
Same day: complete drawings and payment by 10am on a working day, delivered by 6pm. Slots are limited each day. If they're full, we'll tell you straight away and deliver within 24 hours at the Express price.
Your own estimator, without the salary.
3 estimates a month, which works out at £40 each
8 estimates a month, which works out at about £31 each
Plan prices exclude VAT. Extra estimates £30 + VAT each. Large projects count as two. Unused estimates don't roll over. Express and same-day turnaround are charged extra. Cancel any time.
We price the core extension and alteration work shown. Kitchens, sanitaryware and floor coverings are included as clearly labelled provisional sums, so you see a complete overall price. Extras like porches or log burners are only priced if you ask.
Upload your plans, elevations and any specification below.
Full take-off and pricing from your drawings, by a working builder.
Branded customer copy PDF. Builders also get a detailed builder's copy, and trade clients get the Excel workbook. In 2 working days, 24 hours with Express, or the same day if you order by 10am.
XI Estimating was set up by Dan, a qualified joiner who has spent the last 30 years in the building trade and still runs live extension and renovation jobs in Cheshire.
Like most builders, he has spent far too many evenings pricing jobs off drawings, measuring, chasing material prices and trying to turn it all into a quote that looks as good as the work. Getting an accurate, professional quote out quickly has always been one of the hardest parts of the job.
He saw the same problem from every side. Builders lose work to a one-line quote that doesn't do them justice. Homeowners can't compare quotes like for like. Architects design without a realistic build cost until it's too late.
XI Estimating is the service he wanted for himself: accurate, fully itemised estimates, priced by someone who knows what it actually costs to build, presented properly and back to you fast. It makes life easier for builders, architects and homeowners alike.
Yes. Your drawings and prices stay confidential. We never contact your clients or price against you.
No. It's a professional estimate of likely build cost based on your drawings. Builders' tender prices can vary, but a detailed breakdown makes them easy to compare.
We're working builders who price jobs every week. Estimates are prepared from our own live project costs, not a national average calculator. This is not a RICS-regulated service.
For builders, yours. On your first job you give us your day rate for each trade, plus your profit margin and contingency, and we price every estimate with them. Architects and homeowners get our standard regional rates, based on live jobs.
Yes. For builders, we deliver the client PDF in your logo, colours and contact details, ready to send. Just upload your logo and details with your first request; we keep them on file for every job after that.
Send complete drawings and pay by 10am on a working day (Monday to Friday, excluding bank holidays) and your estimate pack arrives by 6pm the same day. We take a limited number of same-day jobs each day so every estimate is still checked properly. If the day is full, we'll tell you straight away and deliver within 24 hours at the Express price.
The customer copy is for your client: a cost per element and a total, with your margins built into the prices. The builder's copy is for you: every line priced at net cost, your contingency and profit shown separately, labour days and cost by trade, a materials order list, plant and waste, and the take-off behind it. Both come to the same total. Builders get both; architects and homeowners get the customer copy.
We price the core extension and alteration work shown on your drawings. Kitchens, sanitaryware and floor coverings go in as clearly labelled provisional sums for a complete overall price. Ancillary items such as porches, log burners, landscaping or solar are only included if you ask. VAT, professional, planning and Building Control fees are excluded.
We can't see below ground, so foundations are priced as a typical strip foundation. If piled or special foundations might be needed, we add a provisional sum. Below-ground drainage isn't measured: where new drainage is shown on the drawings we include a provisional sum, and where none is shown it's excluded.
Yes. Builders should always check the quantities, rates, scope and provisional sums against the drawings and site before pricing to their client. If anything needs adding, changing or taking out, tell us and we'll re-price it.
Anywhere in the UK. We're based in Cheshire and work from your drawings, so no site visit is needed.