External glass
Reachable glazing is cleaned with the agreed safe access method.
Alesta · Window cleaning in London
Residential window cleaning organised around pane count, height, opening style, frames and the safest practical method for internal and external faces.
☎ Call 020 3608 3976Elevation before estimate
Sash windows, rooflights, French doors, divided panes and fixed upper glazing differ in time and access. Internal faces also involve furniture, flooring, curtains and household privacy.
We request photographs of each elevation and identify internal or external scope, frames, sills, screens and residue. Builders deposits, paint, hard-water staining and damaged seals require separate assessment.
Reachable glazing is cleaned with the agreed safe access method.
Floors and nearby furnishings are protected while panes and edges are detailed.
Accessible components are included only to the level stated in the quote.
Height, rooflines, conservatories and restricted ground are assessed before work.

Common reasons customers call
Rain marks, dust and ordinary atmospheric dirt reduce clarity.
Fingerprints and household film remain despite exterior cleaning.
Specified glazing needs completing before sale, tenancy or guests.
A suitable pole or specialist access method must replace unsafe improvisation.
Why Alesta for window cleaning
Photographs identify height, pane layout and obstacles.
Internal, external, frames, sills and screens are separated.
Public routes, conservatories and fragile roofs affect method.
Failed seals, scratches and mineral etching are not disguised as soil.
An access-led cleaning process

Planning begins with photographs of every relevant elevation, pane count, floor level, opening style and obstacles. We ask whether internal faces, frames, sills, doors, rooflights or conservatory glass are included. Parking, water access and public footpaths matter for external methods. Paint, cement, adhesive, silicone, mineral deposits and post-construction residue are declared because ordinary maintenance cleaning may not remove them safely.
At arrival, the cleaner confirms glass and access. External work zones are checked for vehicles, neighbours, overhead lines, fragile surfaces and pedestrians. Water-fed pole methods can clean appropriate high glazing from the ground, while some recessed or obstructed panes need another assessed solution. Ladders are not used as a default route to inaccessible work, and fragile roofs or unsafe balconies are not crossed.
For external glass, loose soil is flushed and compatible frames are agitated to the included scope before glass receives a controlled rinse. Pure-water results rely on correct technique and drying, not wiping every high pane. Internally, nearby items are moved by agreement, floors protected and liquid controlled. Glass, edges and accessible sills are detailed with suitable tools, avoiding damage to films, leaded sections, loose putty and delicate finishes.
The completed glazing is reviewed from practical angles. Scratches, failed double-glazed seals, internal condensation, etching and mineral damage can remain because they are not removable surface soil. Weather can quickly mark clean exterior glass, and rain itself is not proof of poor work where surrounding frames or pollution cause new runoff. Handover identifies inaccessible panes, permanent defects and any restoration or repair assessment needed.
Clear pricing
Cost depends on panes, height, internal or external faces, frames, access, method, residue and parking.
| Service scope | Price | What affects the final price |
|---|---|---|
| Small exterior window clean | Quoted after assessment | Pane count, levels, access and frames |
| Interior and exterior clean | Quoted from photographs | Rooms, protection, panes, detail and time |
| Complex or specialist-access glazing | Detailed quotation | Height, rooflights, conservatory, equipment and safety controls |
Pricing context: Elevation photographs are required. Builders residue, hard-water restoration, failed seals and specialist access are separate unless listed.
How the service works
Share panes, height, access, obstacles and internal or external scope.
We define glass, frames, sills, screens and exclusions.
The cleaner completes accessible glazing and identifies permanent defects.
Window cleaning FAQ
Useful answers about rain, internal glass, frames, high windows, residue, preparation and pricing.
☎ Call 020 3608 3976Often, if conditions remain safe. Heavy rain or wind can reduce safety and quality, so the visit may be adjusted.
Only when quoted. Internal work needs access, floor protection and furniture or curtain preparation.
They can be included to an agreed level. Deep restoration, paint removal and damaged components are separate.
Suitable water-fed pole or assessed access methods are used. Unsafe improvisation on roofs or balconies is not accepted.
Only after separate assessment because scraping and chemicals can scratch glass or damage coatings and frames.
Unlock access, close windows, move fragile internal items, control pets and identify damaged glass or loose fittings.
Pane layout, height, internal faces, frames, access, obstacles, residue, equipment, parking and frequency affect the quote.