West Berkshire · England

Window & door mastic in East Shefford, West Berkshire

Window mastic for East Shefford, by sealant specialists with 20+ years’ experience. 180+ five-star Google reviews and a 4.9 rating.

  • Leaking joints at the ends of sills
  • Draughts coming in around windows and doors
  • Cracked or shrunken mastic around the frame

Book window mastic in East Shefford

About our window mastic in East Shefford

Around East Shefford we seal all kinds of frames: uPVC, aluminium, timber and composite, along with patio doors, French doors and sills. Each gets a sealant chosen for the frame and the wall it meets. Typical jobs include cracked sealant at the sill ends and damp patches on the reveal after heavy rain, on window sills, patio & French doors and timber windows & doors.

Somewhere as small as East Shefford, older homes often have timber frames set in stone or brickwork. Older buildings like these do not always suit modern silicone, so the sealant has to be chosen to suit the building.

All of our work is guaranteed for twelve months.

Location
East Shefford (RG17, RG20)
Wider area
West Berkshire
Cover
12 months on all our work
Price
A clear quote up front
Call
0345 464 0079
Updated
26 October 2026
Mr Mastic applicator sealing the top of a white uPVC door frame on a red-brick house

What sealant work can’t fix

A few problems are outside what sealant work can do:

  • Draughts through the window seals rather than the frame
  • Broken hinges, locks or handles
  • Misting between the panes of a double-glazed unit (that needs a new unit)

Not sure which it is? You can phone 0345 464 0079 or drop us an email and we’ll tell you honestly before you book.

Surfaces we seal

  • Timber windows & doors
  • Composite doors
  • Aluminium frames
  • Patio & French doors
  • Window sills
  • uPVC windows

East Shefford: your questions answered

I let a flat near Kintbury station. Can you help?

Yes, rental work is part of what we do. You can ring 0345 464 0079 or drop us an email with the address and a few details, and we will give you a fixed price before work begins.

Will you come out to East Shefford?

Yes, we do. We work across London and the South East, from towns to the smallest places. Longer journeys are simply planned in advance.

Will resealing my frames help with draughts?

Often, yes. Air often gets in between the frame and the wall, and sealing the inside and outside joints closes that path.

Where do you work from?

We’re a Crawley-based firm, with over 20 years’ experience. We work across South East England, London and Scotland.

Will it make a mess?

No. We protect the surfaces around the joints, and we clear up the old sealant and our materials before we leave.

Can you do upstairs windows?

Yes, as long as they can be reached safely. Let us know about access when you ask for a quote and we’ll plan for it.

Do you remove the old sealant?

Always. Sealing over old sealant is the main reason resealing fails early, and it’s something we never do.

Do you seal inside as well as outside?

Yes, we do both. Inside, the joint between frame and plaster is sealed neatly, using a paintable sealant if you want to decorate.

What the job involves on each surface

Composite doors

An exposed front door gets wind-driven rain, and the top and bottom corners tend to fail first. We pay most attention there.

Window sills

The end joints of a sill tend to fail before the rest. We reseal them so rain cannot run into the wall.

Leave it or put it right?

Working on frames from a ladder with a sealant gun is not easy, especially on upper floors. A professional job is cut out properly, backed where needed and finished neatly, in a sealant suited to the wall. In a small place like East Shefford, homes can be exposed to wind and rain, which finds any gap, and older walls, once damp, take a long time to dry.

Homes and businesses are quoted the same way: the amount of work, the access and the products needed, plus any working-time requirements on site. Call for a quick quote and we will explain what it covers.

Why book with us

  • 20+ years of sealant experience
  • Homes, businesses and hotels
  • Colour picked to suit the job
  • We agree the colour with you first

See what affects the cost or our reviews.

What window mastic looks like in East Shefford

Compared with the north and west, the South East gets less rain, but outside sealant still needs a dry, clean surface, so outdoor work is planned around the forecast.

If you let a flat or house near Kintbury station, cracked frame mastic tends to show up as a draught or damp complaint, so it’s worth checking between lets. In the older streets around St Thomas' Church, replacement windows fitted into old openings often leave uneven gaps that need backing and a flexible joint. Schools such as Shefford C.E. Primary School are buildings too, and its window and door frames need their mastic kept sound, just like a home’s.

East Shefford is about 7 miles north-west of Newbury, in West Berkshire. From the centre of East Shefford to the outskirts, window mastic is available for homes and businesses alike. Across West Berkshire, we cover 155 places, and East Shefford is one of them. Our Reading page covers work nearby, about 20 miles away.

Postcode districts we cover here for window mastic: RG17 and RG20. If you’re just outside East Shefford, we cover Great Shefford (1 mile north-west), Weston (1 mile south-east), Wickham (2 miles south), Shefford Woodlands (2 miles south-west) and East Garston (2 miles north-west). Within a short drive, we also cover Newbury (7 miles south-east), Thatcham (9 miles south-east), Speenhamland (7 miles south-east), Hungerford (5 miles south-west), Lambourn (5 miles north-west) and Shaw (7 miles south-east).

Near you in East Shefford

The nearest railway station is Kintbury station, about 4.7 miles south of the centre. Open spaces near East Shefford include Sole Common Pond.

Map of East Shefford © OpenStreetMap contributors

What we do, step by step

When we get to you, we compare the joints with what we discussed. If anything is different, we explain it before carrying on. Most jobs then take a few hours for a handful of frames, longer for a whole house. Somewhere as small as East Shefford, access is often the only tricky part. For outside work, also let us know about exposed walls and any outbuildings involved.

  1. We check how each frame can be reached safely.
  2. Old, cracked mastic is removed completely.
  3. The surfaces are cleaned and left dry.
  4. Deep voids are backed, then the sealant is gunned in.
  5. We tool the joint so water runs off, then clear up.

How to prepare

  • For indoor joints, keep the area dry beforehand if you can
  • Let us know about earlier repairs to the joints
  • Tell us about access, such as stairs, a lift or high-level joints

How to get a quote

Getting a quote is simple: let us know the job and the location, and roughly how big it is. A few pictures by email make the job easier to understand, and we’ll take it from there.

Get a price

Related advice

DIY sealant or a professional job?

The difference is mostly in the preparation and the product. We take joints back to clean, dry surfaces, and the sealant is matched to the joint and its conditions.

A DIY attempt does not rule out a professional job. We cut it out and start again, so tell us about it when you ask for a quote.

For landlords and businesses

Hotels need rooms back in use, so the work can be planned room by room around your bookings where we can. Hotel work is part of what we do, alongside homes and businesses.

We also work for property managers and facilities teams. We can quote a run of properties together.

How we quote for window mastic

Some jobs are bigger than they look, and some smaller. What affects the quote:

  • The number of rooms or windows
  • Which sealant suits the joint
  • Whether the work is at height
  • How much old sealant there is and how hard it is to remove

Combining jobs into one visit generally makes better use of the time than several visits. We’ll give you a clear quote for the lot.

Asking for a quote

To help us quote quickly, let us know:

  • If it’s domestic, commercial or a hotel
  • If someone has resealed it before
  • A few photos by email, if you can
  • The problem you’ve noticed

A good description makes for an accurate quote. Let us know the location, the problem and roughly how many joints, and add photos by email if you can.

20+ yearsMastic and sealant specialists
ARBOMaster approvedApproved applicator for Arbo sealants
Fully insuredDomestic, commercial and hotels
One-year guaranteeOn every job