UK ESTIMATING NETWORK
Estimators on call when your team is at capacity
Overflow Estimating supplies freelance estimators to UK contractors. Send us the drawings and the tender date, and we'll deliver a checked take-off or priced estimate on time, so you never turn down a tender.
TENDER IN · ESTIMATE OUT
Your team is full. Ours isn't.
Three tenders. One estimator. Friday deadline.
When tenders stack up, something gives. Bids go out rushed, scope gets missed, or good work gets turned down because nobody is free to price it. Hiring another estimator takes months and costs a full salary, even in quiet weeks.
Overflow Estimating gives you the extra estimating capacity for the weeks you need it, and none of the overhead when you don't.
Extra capacity in four steps
See how it worksSend the tender
Upload the drawings, specs and deadline.
We match a specialist
A vetted estimator with experience in your trade and sector.
We check the work
Every take-off and estimate is reviewed before it reaches you.
You submit with confidence
Tender-ready, in your format, on your labour rates.
Specialist estimators for every package
Explore servicesElectrical estimating
Power, lighting, containment, fire alarm, data and EV, measured and priced.
MEP estimating
Mechanical and electrical packages priced together, ready for framework and commercial tenders.
Take-off only
Accurate quantities you price yourself, for teams who keep their rates in-house.
Tender support
Overflow help for peak weeks, or a monthly retainer for steady bid volume.
Your extended estimating team
Capacity on call
One tender or a busy season. Scale up when work lands, scale down when it doesn't.
Specialists, not generalists
Estimators matched by trade and sector, not whoever is free.
Checked before it reaches you
A second pair of eyes on every job.
Your rates, your format
We work to your labour rates, templates and preferred software.
One agreement, one invoice
However many estimators we use.
Freelance estimator? Join the network
Get a steady flow of quality commercial work, matched to your trade, with fair rates paid on time.
Got a tender your team can't take on?
Send it to us today and we'll come back to you with an estimator and a turnaround.
Send a tender