£
Build Budget
Expert
The Quote Check
For homeowners comparing builder quotes, before anything gets signed

Don't sign that quote yet.

I'm Owen. Send me your builder's quote and I'll go through it line by line, flagging what's overpriced, what's missing, and what will come back to bite you later. You'll know exactly what you're paying for before you sign.

  • Overpriced lines and missing items flagged before you sign anything
  • Deposit demands and payment terms checked, red flags called out plainly
  • Vague wording tightened so your builder can be held to the price
  • Free lifetime access to The Build Budget Collective, our 500+ member community, for the rest of your build
Get your quote checked →
£197from £99 per quote
when comparing 3 quotes · Back within 5 working days
Money-back guarantee: if I can't find anything that could save you money, you pay nothing.
★★★★★Decades in build cost management · Every review done personally by Owen
As featured in
The Times
This is Money
Yahoo Finance
A couple reviewing their builder's quote at the kitchen table
Scaffolding missing from quote £2,400?
"Provisional sum" undefined pin this down
50% deposit up front red flag
The problem

You're about to commit six figures on the word of someone you've met twice.

You can't tell an inflated price from a fair one. Almost nobody can, until they've read hundreds of these.

And the real cost usually isn't on the quote at all. It's in what's been left out: the items that quietly come back as "variations" at month four, when you're in too deep to argue.

Nobody in this market sells you a second opinion. That's exactly what The Quote Check is.

10%
average overspend on a UK build
£10,000+
what that means on a £100k project
5 days
to know for sure, before you sign
A builder's quote being marked up line by line with a red pen
every line, checked by hand
What you get back

Every line, read the way a builder reads it.

1
Prices above market
Any line priced higher than it should be, flagged with what a fair figure looks like.
2
Missing items and scope gaps
The things not on the quote that will come back as expensive variations once work starts.
3
Payment schedule red flags
Front-loaded payments, oversized deposits, and terms that put your money at risk.
4
Vague specification
Wording too loose to hold your builder to, tightened before it costs you.
5
A realistic cost range
What a project like yours should actually cost, so every number has context.
The one you'll actually use
Your Builder Question List
A written list of specific questions to put back to your builder, ready to send word for word. You walk away holding exactly what to say, so nothing gets lost in a "we'll sort that later".
How it works

Send it today. Know within 5 working days.

No site visits, no meetings, no homework. You send what you already have.

1Day 0 · 10 minutes
Send your quote
The quote or quotes, plans or drawings if you have them, and a short description of the project. That's all I need.
2Days 1 to 4
I review it line by line
Personally. Every line, every allowance, every payment term, checked against what work like yours should cost.
3Within 5 working days
Your summary and call
A written summary of every flag, your Builder Question List, and a 30-minute call to walk it all through.
Start my Quote Check, £197 →
Written summary + 30-minute call · Delivered within 5 working days
Owen Gartside, founder of Build Budget Expert
Owen, your second opinion
Who's checking your quote

A real person. On your side of the table.

I'm Owen, founder of Build Budget Expert. I've spent decades in build cost management, reading quotes the way builders write them. I know where the money hides.

Every Quote Check is done by me, personally. I read every line myself. No juniors, no templates, no AI summaries. And it's me on your call at the end.

I'm not a builder and I'm not selling you a build. My only job is to protect your budget. Over the years, that's meant helping homeowners avoid hundreds of thousands of pounds in unexpected costs.

"The expensive problems are never on the quote. They're the things missing from it."

Owen Gartside · Build Budget Expert
From people who nearly signed

What a second pair of eyes is worth

★★★★★

"Owen found £4,100 of groundwork missing from a quote we were two days from signing. The builder added it back without argument. It paid for itself twenty times over."

Sarah & James
Rear extension, Surrey
★★★★★

"The question list alone was worth it. Our builder answered every single one, and rewrote the payment schedule when we pushed back."

Priya
Loft conversion, Manchester
★★★★★

"We had three quotes and no idea. Owen showed us the cheapest one was missing £9k of scope. We would have picked it."

Mark
Full renovation, Bristol
Pricing

Less than 0.2% of your build cost.

One caught mistake pays for this many times over. Think of it as a small, fixed insurance policy against the unexpected costs that hit at month four. Both options include the written summary, your Builder Question List, a 30-minute call with me, and free lifetime access to The Build Budget Collective.

One quote
You've got a builder in mind and one quote in hand.
£197one-off
£197 per quote
  • Full line-by-line review of your quote
  • Written summary of every flag
  • Your Builder Question List, ready to send
  • 30-minute call with Owen
  • Delivered within 5 working days
  • Free lifetime access to The Build Budget Collective, our 500+ member community, for questions throughout your build
Check my quote →
Comparing quotes? Start here
Two or three quotes
You're choosing between builders and need to know which number is wrong.
£297one-off
£99 per quote when comparing 3
  • Everything in the single review, for every quote
  • Side-by-side comparison: which is really the cheapest
  • What each builder has left out, mapped against the others
  • A question list for each builder
  • Same 5 working day turnaround
  • Free lifetime access to The Build Budget Collective, our 500+ member community, for questions throughout your build
Compare my quotes →

Most reviewers hand you a report and disappear. You keep a 500-strong community and me in your corner for the rest of your build. Almost nobody else can offer that.

Money
back
promise

If I can't find anything that could save you money, you pay nothing.

Simple as that. If your Quote Check doesn't uncover a single thing worth flagging, no overpriced lines, no missing items, no terms worth renegotiating, I'll refund you in full. The risk sits with me, not you.

Straight answers

What this is, and what it isn't.

Not a structural survey
I'm reviewing the paperwork and the pricing, not inspecting the building.
Not a formal QS report
No 40-page document. A clear, usable summary of what matters and what to do about it.
Not legal advice
I'll flag contract terms worth questioning, but I'm not a solicitor and don't pretend to be.

It is an expert second opinion on cost and scope, from someone independent who reads builder quotes every day, delivered before you sign anything.

Thinking it over?

Fair questions.

"My builder's a mate. He came recommended."

Great start. A recommendation tells you they're pleasant to work with. It doesn't tell you this quote, for this project, is priced right or complete. Checking the numbers isn't an insult to your builder. A good one will answer your question list without flinching.

"Isn't this just delaying things?"

Five working days now, against six months of variations later. If the quote is solid, you sign it with total confidence and you've lost nothing. That's not a delay. That's due diligence on the biggest purchase you'll make after your house.

"Can't I just get another quote?"

A second quote gives you another number. It doesn't tell you which one is wrong, or what both of them have left out. Comparing two incomplete quotes just means choosing between two surprises.

A relieved couple in front of their extension

Sign with confidence, not hope.

Five working days from now, you could know exactly what your quote says, what it hides, and what to ask before you commit. Or you could sign it and find out at month four.

One quote, £197 → Compare 2 or 3, £297 →
Money-back guarantee · Delivered within 5 working days · Reviewed personally by Owen
The Quote Check · £197
Money-back guarantee · 5 working days
Get my quote checked →