Homeowners who will need new windows and doors — months before they search for you.
Every extension, loft conversion and garage conversion ends with a glazing package. Explicit window-replacement applications name the job itself. We post you the addresses while the shortlist is still empty.
14,652 matching applications hit the UK register in the last 30 days — filtered down to just the councils or postcode areas you cover.
Why the register beats every other lead source
A typical replacement or new-glazing package runs £5,000–£25,000. One converted letter can cover a year of Radar.
Exactly what we match for window & door companies
This is the real matching table, not marketing. Every lead row you receive shows its trigger, demand window and confidence — and the reasoning is printed on the row so you can sanity-check every address before it's mailed.
| Trigger | Example from the register | Demand window | Confidence | Why it matters to you |
|---|---|---|---|---|
| Replacement windows / doors | Replacement of existing timber windows with UPVC double glazed units | now – 2 months | high | explicit fenestration work in the application itself |
| Loft conversion / dormer | Loft conversion with rear dormer and 3 no. rooflights | 2 – 5 months | high | rooflights and dormer glazing follow the structural work |
| Kitchen extension / open-plan kitchen | Single storey rear extension to form open plan kitchen diner | 2 – 5 months | high | kitchen extensions are typically finished with bifolds/rooflights |
| Two-storey / first-floor extension | Two storey side extension and single storey rear extension | 4 – 7 months | high | glazing is ordered once the shell is weathertight |
| Single-storey extension | Householder Planning Application - Single storey rear and side extension | 3 – 6 months | high | bifolds/windows/doors go in once weathertight |
| Garage conversion | Garage conversion to habitable accommodation | 1 – 3 months | high | garage door is replaced with a window/infill unit |
| Conservatory / orangery / porch / garden room | Erection of a conservatory to rear | 1 – 4 months | high | the structure is mostly glazing |
| New dwelling(s) / self-build | Planning Application for the erection of a two storey dwelling with garage | 5 – 10 months | medium | glazing package late in a new-build programme |
| Outbuilding / annexe / detached garage | Householder Planning Application - Detached garage. | 2 – 5 months | medium | doors/glazing to finish |
| Extension (storeys unspecified) | Proposed rear extension and internal alterations | 3 – 6 months | medium | glazing follows, scale unknown |
| Change of use to residential / HMO | Change of use from office (Class E) to 4 no. residential flats | 3 – 9 months | low | conversions usually need fenestration work, but scope/timing vary widely |
| Renovation / alterations (catch-all) | Refurbishment and alterations to existing dwelling | 1 – 6 months | low | alterations often include fenestration — unconfirmed |
Fenestration applications are actionable immediately; extension glazing lands 3–6 months after consent. Demand windows are measured from the expected decision date. Refused and withdrawn applications are dropped automatically. How the demand windows are built →
See what’s in your patch
Type the councils or postcode areas you actually work. We will run the last 90 days of the public register through the same trigger model your batches use and tell you how much matching demand is sitting in it right now.
Counts only. High and medium confidence matches, deduplicated to one line per application. The site addresses, planning references and per-row reasoning are what a subscription buys.
How it works
1. Pick your patch
The councils or postcode prefixes you cover — a town, a county, or several.2. We scan the register
Every month we cross live planning applications from 378 UK councils with the trigger model above and score the demand window.3. You get a mailing list
A deduped, mailing-house-ready CSV of "Owner/Occupier" addresses — one household, one letter, prior recipients suppressed automatically.Sample leads (anonymised)
| Trigger | Area | Property | Expected demand |
|---|---|---|---|
| Replacement windows / doors | CO15 | A property near CO15 ●●● | now – 2 months |
| Loft conversion / dormer | CO12 | A property near CO12 ●●● | 2 – 5 months |
| Kitchen extension / open-plan kitchen | CO13 | A property near CO13 ●●● | 2 – 5 months |
| Two-storey / first-floor extension | CO16 | A property near CO16 ●●● | 4 – 7 months |
Real batches show the full site address, planning reference, score and reasoning. Samples are illustrative.
The rules (non-negotiable)
Start your subscription
£149/month · window & door companies · your patch
Exclusive cover available: one window and door installation subscriber per patch — first come, first served. If your area is already taken, we'll tell you before you pay anything.
Straight answers
Do you cover commercial glazing?
The triggers are tuned to householder work — extensions, conversions, replacements. Large multi-dwelling schemes are deliberately demoted because they buy through national supply chains.
Other trades we cover
Conservatory, orangery & garden room installers · Bricklayers & building contractors · Roofing contractors · Spray-foam removal specialists · Loft conversion companies · Kitchen companies · Landscapers & driveway contractors · Solar installers · Heat pump & heating engineers · Scaffolding firms · Skip hire & waste companies · Demolition & strip-out contractors · Tree surgeons & arborists
How to actually work these leads
A list is not a pipeline. What to send, when to send it, how many times to follow up and the compliance line we hold: how to turn planning applications into jobs →