For established window businesses

One integrated sales and marketing engine — built exclusively to generate revenue.

We build the end-to-end system that puts more homeowners into your pipeline, converts more of the ones already there, and reactivates the ones you thought were gone — automatically and consistently.

One partner per region — structural competitive advantage
Window showroom

At your scale, leads falling through is not a minor inconvenience.
It's a revenue problem.

We work with businesses that have the leads coming in. The problem is what happens next — no reliable response process, no consistent follow-up, and no visibility of what's actually working.

The "quiet month" shouldn't exist.

Summer fills itself. It's the rest of the year that shows you where your lead generation and retention systems are failing.

Multi-location complexity.

Managing lead flow, conversion rates and team performance across multiple showrooms and 10–50+ staff requires more than a spreadsheet.

Revenue leakage.

If you're not responding instantly and following up for 12+ months, you're leaving verified revenue on the table every single day.

Growth isn't an accident.
It's a system.

We don't sell leads. We build the infrastructure that makes growth inevitable. Verified results from real window businesses.

7,080%
ROAS
Roofriendly
Lincolnshire
£5M+ in additional tracked revenue over a 6-year partnership.
50×
ROAS
ADS Windows
Devon
Two consecutive record sales months achieved within 6 months.
50%+
More Appointments
ADS Windows
Out-of-hours
Appointments booked outside business hours via AI response.
0
Leads Lost
ADS Windows
System-wide
Zero leads lost to no follow-up post-implementation.

The Window Growth
Operating System

Most agencies focus on one piece of the puzzle. We build the whole engine.

One integrated sales and marketing engine — built exclusively to generate revenue from first click to confirmed appointment.

One SYSTEM
01

Lead Generation

Integrated demand generation across Google, Meta and SEO — connected to full conversion tracking.

02

Quoting Speed

Instant response every hour of the day. The business that responds first gets the appointment.

03

Follow-Up Discipline

A multi-channel revenue retention engine. Instant response to indefinite nurture and reactivation.

04

Content Production

Automated engine turning every completed job into professional case studies and social proof.

05

CRM & Automation

The sales pipeline CRM built specifically for converting enquiries into appointments at scale.

06

Training & Adoption

Bespoke training programmes for every function — sales, admin, marketing and management.

We work with a very specific
type of window business.

Not every business is ready for what we build. Here's how to know if you are.

This is for you if
  • You turn over £2M–£10M+ and have a multi-team sales operation
  • You know leads are slipping through — but you lack the visibility to fix it
  • You're willing to change how the business operates to achieve scaling
  • You want predictable revenue, not seasonal guesswork or luck
This is not for you if
  • You want cheap shared leads with no internal follow-up process
  • You expect marketing to fix deep-rooted operational problems
  • You're not prepared to track conversion data at a granular level
  • You want to hand it over and forget it — that's not growth, that's gambling
Jamie, Founder of Window Growth Co.
"We do not scale chaos.
We only scale systems."

We are not another marketing agency. We do not sell leads. We do not sell ads. We build the system that makes both worth having.

If you're running a serious window business and want a partner who understands what that means — let's talk.

Jamie Matthewman
Founder, Window Growth Co.

Ready to stop firefighting
and start scaling?

We work with a small number of window businesses at a time. If you're at the right stage — £2M+ turnover, sales team in place, willing to change how the business operates — the first step is a 30-minute discovery call.

Book a Discovery Call

Book a 30-minute discovery call. We'll look at your current lead sources, your pipeline, and where the gaps are.

Or call directly: +44 7427 818832