Never copy a tender return into a spreadsheet again.
Tender comparison and contract administration for building surveyors.
Spreadsheet, PDF, even a photo of a marked-up printout: however a contractor's return arrives, it lands in one like-for-like comparison against your Schedule of Works, with anomalies flagged for your review. You always make the call.
Once the contract is awarded, Tendermark stays with you: variations, interim valuations, every step on the audit trail.
Built to the RICS AI Standard.
Join the pilot programme5 free tenders and lifetime benchmarking
Example output
Tender Analysis — Comparison
Hartwell House, Brackley · 3 returns compared · ref 290741 Issue 01
Lowest
£128,500
Highest
£134,900
Spread
5.0%
Flagged for your review — not a recommendation
Tender Analysis — Comparison
Hartwell House, Brackley · 3 returns compared · ref 290741 Issue 01
Lowest
£128,500
Highest
£134,900
Spread
5.0%
Item
Hendersons
Crestview
Albion M&E
1. Preliminary works
1.1 Site clearance and protection
£1,800
£2,100
£2,050
1.2 Temporary hoarding (10m run)
£3,400
£3,200
£5,800
2. Structural repairs
2.1 Replace damaged lintels (6 no.)
£6,900
£4,100
£4,350
2.2 Repair cracked render — north face
£2,200
£2,400
£2,100
Flagged for your review — not a recommendation
Download PDF →
How it works
Two jobs, one tool. Run the tender, then administer the contract.
Compare the returns and award the work. Then keep going in the same place, with the same figures and one audit trail, all the way to the final certificate.
Run the tender
Author or upload your Schedule of Works
Compose a Schedule of Works directly in Tendermark, or upload your existing Excel, PDF, or Word document. Line items are processed and structured automatically, with sectioning, units, and notes preserved. Drag-and-drop reordering, Excel paste, and bulk edit are built in. Most surveyors author rather than upload, and the editor is built for that.
Schedule of Works
Hartwell House, Brackley · ref 290741
Description
Type
A. Preliminary works
B. Structural repairs
C. Roofing
8 items · 6 priceable · 1 provisional excluded
Invite contractors to price
Send each contractor a unique link from the tool. They open it from their email inbox, and price each of your SoW line items directly. No account, no software download, no spreadsheet to format. Progress saves automatically; they can return and edit until they submit. Returns land in Tendermark as they come in, ready to compare.
Contractors who prefer to can still send files. Tendermark accepts Excel, PDF, Word, scanned documents, and phone photos. The invitation link is the easier path for most; the upload path is there for the ones who need it.
Tendermark · Invitation to price
Hartwell House
Brackley · Hadley & Partners LLP
Due 14 Jun 2026A. Preliminary works
A1Site clearance and protection
£1,800
A2Temporary hoarding (10m run)
£3,200
B. Structural repairs
B1Replace damaged lintels (6 no.)
B2Repair cracked render — north face
2 of 4 items · £5,000 so far
Review the comparison and issue the report
Tendermark builds the comparison table as each return lands. Anomalies such as unusual price spreads, missing items, or lump-sum line items hiding detail are flagged for the surveyor's review. The surveyor decides what to do about each; Tendermark surfaces them and tracks the decision in the audit trail.
When the analysis is ready, the report exports with your firm's branding: PDF for client emails, Word for further editing, or a read-only share link for colleagues.
Hadley & Partners LLP
Chartered Building Surveyors
Tender Analysis Report — Hartwell House
ref 290741 · Issue 01
Summary
Three tenders were returned for Hartwell House, ranging from £128,500 to £134,900 — a spread of 5.0%. Two items are flagged for the surveyor's review: temporary hoarding priced significantly above median by Albion M&E, and damaged lintels priced above median by Hendersons.
Tender submissions
Prepared by Hadley & Partners LLP · Assisted by Tendermark
Award the contract
When the surveyor decides on a contractor, Tendermark records the award and locks the priced Schedule of Works as the contract sum. The award decision is captured in the audit trail with the surveyor's reasoning, useful if a client or RICS Regulation asks how the contractor was selected at a later date. The unsuccessful contractors are sent an automated notification. The appointment letter and contract sit alongside, ready for the JCT handoff.
Tender Award — Hartwell House
Brackley · ref 290741
Appointed contractor
Hendersons
Contract sum
£128,500
Awarded
15 May 2026
Runners-up
Crestview
£131,200
Albion M&E
£134,900
Award decision recorded in audit trail
Appointment notification sent
Unsuccessful notifications sent (2)
Administer the contract
Manage variations against the contract sum
When a variation is priced, whether an addition, an omission, or a change in spec, Tendermark sits it against the original contract sum and flags it for the surveyor's review. The surveyor decides what's reasonable; Tendermark surfaces what's changed and tracks the running total.
Each variation becomes a record in the audit trail, attached to the contract, with the surveyor's notes alongside. At a later date, when a client asks how a figure was arrived at, the trail is there.
Variations — Hartwell House
Contract sum: £128,500 · ref 290741
Description
Type
Value
Original sum
£128,500
Net variations
+£4,050
Adjusted sum
£132,550
Flagged for your review — not a recommendation
Track progress with interim valuations
At each interim valuation, Tendermark builds a burn-up progress chart from the line-item progress the surveyor records: work completed against work contracted.
You still author the valuation, but Tendermark assembles the numbers and builds the progress chart.
Completion burn-up — valuation 4 of 6
RICS AI Standard
A compliance pack for your firm, and an audit trail on every tender.
From 9 March 2026, the RICS professional standard on AI requires you to run due diligence on your tools, keep a risk register, and tell clients in writing when AI is involved. Tendermark gives you what you need for each: a plain-English account of how it works and handles your data for your due diligence, a risk register template to complete, and client disclosure wording for your engagement terms. Every tender then keeps a timestamped audit trail, and you stay the decision-maker on every figure.
How Tendermark works
Plain-English explanation of what the AI does and doesn't do — suitable for due diligence records and your firm's AI risk register.
Risk register template
Pre-populated for Tendermark use. Covers failure modes, data handling, and surveyor oversight obligations. Fields left for your firm to complete.
Terms of engagement language
Standard client disclosure text, ready to copy into your engagement terms. Meets the RICS client notification requirement.
Audit trail on every tender
Every contractor submission and report generation is timestamped and attributable — supporting RICS audit trail expectations.
Free. No sign-up required.
Pricing
No subscription. Pay per tender.
One price. No tiers. No monthly commitment. Your first tender is on us.
Process all contractor returns and view the comparison as many times as you need. One charge, one tender, no surprises.
- Unlimited contractor returns per tender
- Supporting document links shared with all contractors
- Automatic anomaly flagging
- Branded PDF, Word, and Excel exports — included
- Professional comparison table
- Secure share link for the final report
- RICS AI Standard compliance assets
Five free tenders. Everything else, on better terms.
Pilot members receive materially better terms than standard pricing.
Everything in standard, plus
- Five free tenders instead of one
- Lifetime Pricing Commons access (2027 regional benchmarks, free for life)
- Direct influence on the product roadmap
- Early access to new features before general release
- Co-authored RICS compliance pack with your letterhead
Start your first tender free.
No subscription. No card to start. Your first tender comparison is free. Pay £35 only when you process a second.
No subscription. Pay per tender.
Looking for early access? See the pilot programme →