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Quote review for UK homeowners

Two builder quotes, £6,480 apart.
Are they even for the same job?

Your builder's priced thousands of jobs. You've priced one.

We read every quote line by line. Then we put them on the same basis, so you can see what each one leaves out, what that missing work costs, and which quote is cheaper once you add it back.

Check a quoteSee a sample report

The expert in your corner, for the biggest financial decision of your year. First project checked free, no card required.

Rear extension, Guildford4 findings
Scaffolding to rear elevation
Erection, dismantling, 6 weeks hire
Above range
6 wks£400/wk
£2,40030% above the local range£1,600–£1,900
Steel beam to rear opening
Supply and install, 3.2m span
Reg risk
1 no.£3,180
£3,180
Render to rear elevation
Two-coat silicone render, mesh reinforced
Reads fairly
74 m²£62/m²
£4,588£58–£66/m²
Quote total£38,420
Findings4of 34 lines checked

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How it works

Three steps, and you know which quote to sign.

  • Send us your quotes

    A photo, a PDF, or type the lines in. Up to six quotes on one project, and adding them is free.

  • We read every line

    We check what each quote covers and what it leaves out, then price every item against comparable work in your postcode, this year.

  • You see them on the same basis

    What the missing work costs, which quote is cheaper once you add it back, and the questions to ask each builder.

See it run

A real quote, checked end to end.

Watch a real quote go through the free check, from the dropzone to the verdict and the questions it raises. Under a minute, and no sound.

A real run of the product on the live site, not a mock-up. Nothing on screen is staged. The one edit is the wait while the check runs, which is time-lapsed and labelled on screen.

An example finding

We tell you what we noticed, and what it is based on.

Scaffolding is above the local rangeAbove range
Scaffolding at £2,400 is around 30% above what we usually see for a two-storey rear in Surrey.
£2,400 quoted · £1,600–£1,900 typical · 1,240 comparable quotes
Read the full sample report

What we check

Four things we look for in every quote.

  • Work that is missing

    Building control fees, making good, waste removal: the lines that quietly appear later.

  • Building regulation risk

    Steels, insulation, ventilation, and drainage that need sign-off or a calculation.

  • Prices against local rates

    Every line compared with what the same work costs in your postcode this year.

  • Vague or bundled lines

    Single figures covering several trades, where the detail should be.

The £10 comparison

See which quote is genuinely cheaper

The cheapest quote is often the one that covers least. We put every quote on your project on the same basis, so the price you compare is a price for the same job.

The same job, two quotes

Rear extension, Guildford. Example project, illustrative figures.

Hartley Building Ltd is £6,480 cheaper on paper. It is also the quote with no drainage, no building control fee and no waste removal. Price the missing work back in and the order changes.

  • Hartley Building Ltd

    As quoted
    £38,420
    Missing work
    £8,480
    Same basis
    £46,900

    What it leaves out

    • Building control fee and structural calculations£1,850
    • Drainage connection to the existing run£4,200
    • Waste removal and skip hire£1,180
    • Reinstating the path where the drain trench runs£1,250

  • Marchmont Construction Ltd

    Cheaper for the same work
    As quoted
    £44,900
    Missing work
    £900
    Same basis
    £45,800

    What it leaves out

    • Decoration to the two new rooms£900

The cheaper quote is the dearer job. For the same work, Marchmont Construction Ltd comes in £1,100 under Hartley Building Ltd.

Inside the full report

  • Scope gaps with typical costs

    What the quote quietly leaves out, item by item

  • Technical & compliance flags

    With Approved Document citations to verify on gov.uk

  • How the prices sit locally

    Quoted costs checked against UK regional benchmarks

  • Contract details to pin down

    Payment terms, warranty, and start date gaps

  • Regional considerations

    Location-specific rules and risks

  • Likely upsells flagged

    Items worth questioning before you agree

  • The exact questions to ask

    Ready to send to your builder, word for word

Grounded in UK Building Regulations

Every compliance flag is checked against the actual UK Approved Documents, with the exact clause and a gov.uk link to verify. Grounded in the rules, not guesswork.

Part B · 2.23Approved Document BVerify on gov.ukExample citation from a real report
Check my quote freeSee the full sample report

Upload your quotes, we check the first free. £10 unlocks the full report and the comparison. One project, all your quotes. No subscription.

Works with any quote

From a full house extension to a single boiler install.

  • Extensions
  • Loft Conversions
  • Renovations
  • New Builds
  • Garage Conversions
  • Porches
  • Conservatories
  • Electrical
  • Plumbing
  • Heating & Gas
  • Roofing
  • Plastering
  • Drainage
  • Kitchens
  • Bathrooms
  • Wardrobes
  • Driveways
  • Landscaping
  • Fencing
  • Patio & Decking
  • Windows & Doors
  • Solar Panels
  • EV Chargers
  • Insulation
  • Alarm & CCTV

Plus damp treatment, structural work, decorating, and more. If it is a UK building or trade quote, we can read it.

Three quotes for the same job. £75,000 apart. I had no idea which one to trust.

R
Rich, Founder
Built MyBuildAlly after his own extension

I managed my own extension in Hertfordshire. Three quotes for the same work, £75k apart. I had no idea which was fair. Drainage wasn't included. Insulation failed the building regs inspection. I was making a six-figure decision with basically no independent information, and that properly annoyed me.

I've spent 18 years in engineering and technology. RAF avionics, defence, robotics, government. Building products where getting the details wrong isn't an option. So I built MyBuildAlly: upload your quote and it pulls it apart line by line against real UK cost data. What's in range, what's high, what's missing entirely. It checks your plans against current building regulations so you know what to ask before you sign.

No fake reviews. No “trusted tradesman” directories. Just independent analysis to help you get the right work at the right price.

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Frequently asked questions

What does MyBuildAlly do?

MyBuildAlly gives UK homeowners an independent read on builder quotes. It shows what each quote leaves out, flags building regulation risks, checks the prices against regional rates, and puts every quote on your project on the same basis so you can see which one is genuinely cheaper.

How does the quote analysis work?

Upload each quote as a PDF, photo, or document. We read every line item, compare costs against professional benchmarks for your region, and flag anything that looks off: work a quote leaves out, prices that sit outside the local range, and certification gaps. Then we price the missing work back in, so the totals you compare are totals for the same job.

How much does MyBuildAlly cost?

The cost estimator is free forever, and your first project is checked free with no card. £10 then unlocks that project: the comparison between your quotes, the full report on each one, the PDF, and the letter to send your builder. One payment per project, no subscription.

Is my quote data kept private?

Yes. We don't sell leads, share your details with builders, or monetise your data. Your uploaded quotes are processed for analysis only.

How is this different from getting a second quote?

A second quote tells you one builder's price, and two quotes are rarely for the same job: the cheaper one is often cheaper because it covers less. MyBuildAlly reads every quote you receive, shows you item by item what each one leaves out, then how it sits against regional rates, and gives you the questions to ask each builder.

Do I need to understand building to use it?

Not at all. The tool is designed for homeowners with no construction background. Reports are written in plain English with clear explanations of what each finding means and what action to take.

Don't sign until you've compared.

Every quote on your job, on the same basis, with the questions to ask each builder.

Analyse my quotes

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First project checked free, no card required