How long does it take?

Typical lead time is 3–6 weeks from design sign-off, with 2–5 days on site depending on scope, glazing and signage.

Size, timber choice, glazing type (e.g., laminated security glass), bespoke mouldings and any planning requirements. We provide a fixed quotation after survey.

Can you match period details?

Yes. We reproduce mouldings and profiles to blend with neighbouring units and the established streetscape.

What glazing do you recommend?

For most shopfronts we specify thermally toughened safety glass to EN 12150. For added security or acoustic performance, laminated options are available.

Draught Proofing for Sash Windows & Doors

Q: Do I need planning permission?

Often yes—particularly in Conservation Areas or where Article 4 directions apply. We advise on the route and provide drawings and specifications to support your application.

Stop cold draughts, rattles and dust ingress while keeping the original character of your timber windows and doors. Our discreet draught‑proofing system seals gaps, smooths operation and helps reduce heat loss without changing your home’s appearance.

Fast quote: 020 7609 3012 · info@sashrestorationlondon.com

Why choose our draught‑proofing system:

Sympathetic to period homes – components are hidden within beads and meeting points.
Comfort upgrade – fewer draughts and rattles, improved room comfort and smoother sashes.
Clean, quick installs – most homes complete in 1–2 days depending on quantity and condition.
Conservation‑friendly – usually no visual change from outside; suitable for Conservation Areas.
Full service – cords, pulleys and balances tuned while we fit the system.

What’s included:

Discrete brush seals to key contact points (meeting rails, stiles and heads).
Replacement parting bead and staff bead with integrated seals.
Planing and easing of sashes for smooth travel and close fitting.
New sash cords (as required) and pulley service; re‑balancing for correct operation.
Perimeter door & threshold seals for timber doors (if specified).
Final test, clean‑down and maintenance guidance.

Results you can expect:

Reduced draughts and heat loss at typical leakage points.
Less rattling and outside dust ingress.
Quieter, smoother window operation.
Improved comfort with minimal visual change.

Our process:

Survey & quote – assess window/door condition and agree scope.
On‑site works – careful removal of beads, fitment of sealed replacements, tune‑up of cords and balances.
Handover – demonstration, care advice and optional aftercare plan.

FAQs:

Will it change how my windows look?

No. Seals are concealed within beads and meeting points, so appearance is preserved.

Do I need planning permission?

Typically no, because there’s no external alteration. We’ll advise if your property has specific restrictions.

Does it help with noise?

Yes—sealing gaps reduces rattles and offers a modest acoustic improvement. For greater noise reduction, ask about laminated or acoustic glazing upgrades.

How long does installation take?

Most homes complete in 1–2 days, depending on the number and condition of windows and doors.

How long do the seals last?

With normal use and basic maintenance, seals last many years and are straightforward to replace when eventually worn.

Service areas:

We serve Greater London including Islington, Camden, Hackney, Westminster, Kensington & Chelsea, Haringey and neighbouring areas, with visits to parts of Hertfordshire by arrangement.

Get a quote:

Ready to improve comfort and keep the period look? Request a quote by calling 020 7609 3012