Free tool

Revenue Leakage Calculator

Answer six questions about your business and we will estimate how much revenue is leaking through missed calls, slow follow-up, poor conversion, and weak online presence.

About your business

Monthly enquiries60

10200

Include all calls, website forms, and messages

Average job value180

£80£600

Your typical job value, including parts and labour

After-hours calls missed20%

0%60%

Percentage of enquiries that come in outside business hours

Quote-to-job conversion rate55%

20%90%

Industry best practice is 70%+

Google reviews (total)25

0300

More reviews = better rankings = more organic enquiries

Customer follow-up rate20%

0%100%

% of quotes/enquiries you follow up on

Communication channels

Can customers text your business number?Do you have a chat widget on your website?

Estimated monthly revenue leakage

£7,506

£90,072 per year

Breakdown

After-hours missed calls£2,160/mo

Below-average conversion rate£1,620/mo

No SMS capability£864/mo

No chat widget£540/mo

Low review count impact£1,350/mo

Weak follow-up system£972/mo

InstallerOS is designed to close these gaps

AI Voice Agent, instant pricing calculator, automated follow-up, and review generation - all in one system. Guaranteed 3x ROI within 90 days.

Get InstallerOS →Watch the free webinar first

Methodology note: These calculations are estimates based on industry benchmarks and data from 23 UK plumbing and heating business audits conducted in early 2026. After-hours leakage assumes that missed calls are permanently lost (no voicemail follow-up). Conversion rate benchmarks are based on industry data for UK trades businesses. Review count impact is based on the correlation between review volume and organic search ranking. Individual results will vary. InstallerOS does not guarantee specific revenue outcomes.