★★★★★ "Would use again!"

Off-Site Estimating Team, Built for Builders Who Actually Give a Sh*t

We don’t just fire over estimates - we become your remote pre-construction team. From takeoffs to chasing subbies, we handle the heavy lifting so you can focus on what you do best, building.

Get Your Estimate

Money Back Guarantee

"Sam did an electrical takeoff for me for a large luxury development. Super fast turn around and got it spot on, I would recommend. Worth the investment"

Mason

Elevate Electrical

There's a reason why we're trusted by builders across the UK!

Smart estimating up front means better quotes, stronger margins, and less firefighting. We give builders the confidence to price properly, win work, and protect profit - without burning nights doing takeoffs or chasing subbie prices.

We Give A Sh*t

Every job gets the attention it deserves.

We send subbie packages

You don’t have to chase 10 trades for pricing.

Professional branding

Your reports, your logo, your business. Our passion.

Resedential specialists

No commercial work, just residential builds and renos.

We ask the right questions

Because no two jobs are the same.

Real In House Estimators

UK-based, insured, responsive and good.

Here's how it works

We don’t just fire over spreadsheets. We operate like an extension of your team.

Send Us What You’ve Got

Drawings, scope, spec, or just a rough outline — send over whatever you have. It doesn’t need to be perfect. We’re used to working with everything from detailed planning sets to sketches and PDFs off WhatsApp. We’ll come back with any questions straight away.

Send Us Your Plans

Send Us What You’ve Got

Send Us Your Plans

Send Us What You’ve Got

Send Us Your Plans

We Send Subcontractor Packages Out

We build and send subcontractor tender packages on your behalf. You can give us your preferred list, or we’ll work from ours. We’ll also chase for prices if needed. You stay in control – we just handle the admin.

We Send Subcontractor Packages Out

We Build the Estimate

Line by line, using real market rates. Labour, plant, prelims, overheads, material costs – we don’t guess, and we don’t bulk it out with generic plug-ins. This is a professional estimate that actually stands up when you’re negotiating or building it.

We Build the Estimate

You Get the Report

You’ll get a clean, branded report (PDF and Excel) broken down clearly. Fully detailed, no black box figures, and ready to hand to a client or QS. We’ll also provide a summary version if you need something quick for review or pricing discussions.

You Get the Report

Review & Revise If Needed

You walk through the numbers. If there’s anything that needs adjusting – a client changes spec, you change materials, or want to tweak margins – we’ll update it. Revisions are included. This isn’t a “take it or leave it” service.

Review & Revise If Needed

Submit the Estimate

Once you’re happy, submit the quote with confidence. You know the job’s priced properly, the margins are clear, and the report won’t fall apart the moment someone asks questions.

Submit the Estimate

Once you’re happy, submit the quote with confidence. You know the job’s priced properly, the margins are clear, and the report won’t fall apart the moment someone asks questions.

Submit the Estimate

Once you’re happy, submit the quote with confidence. You know the job’s priced properly, the margins are clear, and the report won’t fall apart the moment someone asks questions.

Ongoing Monthly Consultations

If you’re on our monthly package, we stay involved. That means regular check-ins, upcoming job reviews, strategic advice, and fast access to us when needed. You’re not just paying for estimates – you’re getting an off-site preconstruction partner.

Send Us Your Plans

Ongoing Monthly Consultations

Send Us Your Plans

Ongoing Monthly Consultations

"Great experience with core had a couple projects estimated which resulted in our favour. Highly recommended will continue to use for any project estimating big or small. Five stars."

Jay Cole

J.Cole Building Services

Our Packages

Pick the support you need - whether it’s a one-off feasibility study or ongoing expert input throughout your project.

Monthly Consultations

For builders who want expert cost support throughout the construction phase.

£62.50

Per Month

What's included:

Ongoing monthly check-ins

Advice on pricing variations, disputes, and change orders

Help managing scope creep and cost control in real time

Improved Profit

Help Me Profit

Cost Estimate

For builders that want to free up time and submit an estimate they can trust.

£125

From*

What's included:

Full cost estimate based on architectural drawings

Subcontractor packages provided

Quotes that are actually useable throughout the build

Video Consultation if required

Get Your Estimate

*If we can’t deliver a clear, structured estimate based on the info you give us, we’ll refund you in full.*

Hi 👋 I'm Sam - Founder @ CORE.

I’ve been on the receiving end of estimates and, honestly, most of them were useless. Wasting money, chasing missing info, usually when I was already flat-out. That’s why I started CORE.

We’re not here to churn out generic quotes. CORE. is a one-stop precon service. We provide clear, detailed estimates you can actually build from, plus subcontractor packages for the trades you don’t cover in-house. Whether you’re a builder, subbie, or tradesman – we give you the tools to price jobs properly, win work, and protect your margins.

Frequently Asked Questions

Some answers to some frequently asked questions.

What’s included in your estimates?

Our estimates are fully broken down by task. We include materials, labour, plant, prelims, and margins. You also get subcontractor packages for trades you don’t cover in-house.

How long does it take to get an estimate?

Turnaround is typically 5–7 working days, depending on project size and complexity. We’ll always give you a realistic timeline upfront.

Can you provide estimates at different project stages?

Yes. We can jump in at concept, planning, or tender stage. The earlier we’re involved, the more we can help you shape the design to budget.

Do you only work with builders?

No. We work with builders, subcontractors, tradesmen, architects, and even homeowners who want early-stage costing to avoid surprises.

How accurate are your estimates?

We price using current market rates, not out-of-date price books. We also liaise with live subcontractors to keep costs sharp and realistic.

Can you help with ongoing cost management?

Yes. We work with builders to make sure valuations are accurate, variations are properly captured, and nothing gets missed along the way. Our monthly check-ins help you stay on top of costs, protect your cash flow, and keep control of your margins.

What’s included in your estimates?

Our estimates are fully broken down by task. We include materials, labour, plant, prelims, and margins. You also get subcontractor packages for trades you don’t cover in-house.

How long does it take to get an estimate?

Turnaround is typically 5–7 working days, depending on project size and complexity. We’ll always give you a realistic timeline upfront.

Can you provide estimates at different project stages?

Yes. We can jump in at concept, planning, or tender stage. The earlier we’re involved, the more we can help you shape the design to budget.

Do you only work with builders?

No. We work with builders, subcontractors, tradesmen, architects, and even homeowners who want early-stage costing to avoid surprises.

How accurate are your estimates?

We price using current market rates, not out-of-date price books. We also liaise with live subcontractors to keep costs sharp and realistic.

Can you help with ongoing cost management?

What’s included in your estimates?

Our estimates are fully broken down by task. We include materials, labour, plant, prelims, and margins. You also get subcontractor packages for trades you don’t cover in-house.

How long does it take to get an estimate?

Turnaround is typically 5–7 working days, depending on project size and complexity. We’ll always give you a realistic timeline upfront.

Can you provide estimates at different project stages?

Yes. We can jump in at concept, planning, or tender stage. The earlier we’re involved, the more we can help you shape the design to budget.

Do you only work with builders?

No. We work with builders, subcontractors, tradesmen, architects, and even homeowners who want early-stage costing to avoid surprises.

How accurate are your estimates?

We price using current market rates, not out-of-date price books. We also liaise with live subcontractors to keep costs sharp and realistic.

Can you help with ongoing cost management?

Contact

Contact our team

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